def test_parse_query(self):
self.backend.update(self.index, self.sample_objs)
self.assertEqual(str(self.backend.parse_query('indexed')),
'Xapian::Query(Zindex:(pos=1))')
self.assertEqual(str(self.backend.parse_query('name:david')),
'Xapian::Query(ZXNAMEdavid:(pos=1))')
if xapian.minor_version() >= 2:
self.assertEqual(
str(self.backend.parse_query('name:da*')),
'Xapian::Query((XNAMEdavid1:(pos=1) SYNONYM XNAMEdavid2:(pos=1) SYNONYM XNAMEdavid3:(pos=1)))'
)
else:
self.assertEqual(
str(self.backend.parse_query('name:da*')),
'Xapian::Query((XNAMEdavid1:(pos=1) OR XNAMEdavid2:(pos=1) OR XNAMEdavid3:(pos=1)))'
)
self.assertEqual(str(self.backend.parse_query('name:david1..david2')),
'Xapian::Query(VALUE_RANGE 5 david1 david2)')
self.assertEqual(
str(self.backend.parse_query('value:0..10')),
'Xapian::Query(VALUE_RANGE 14 000000000000 000000000010)')
self.assertEqual(
str(self.backend.parse_query('value:..10')),
'Xapian::Query(VALUE_RANGE 14 %012d 000000000010)' %
(-sys.maxint - 1))
self.assertEqual(
str(self.backend.parse_query('value:10..*')),
'Xapian::Query(VALUE_RANGE 14 000000000010 %012d)' % sys.maxint)
self.assertEqual(
str(self.backend.parse_query('popularity:25.5..100.0')),
'Xapian::Query(VALUE_RANGE 7 \xb2` \xba@)')
def test_parse_query(self):
self.assertEqual(str(self.backend.parse_query('indexed')),
'Xapian::Query(Zindex:(pos=1))')
self.assertEqual(str(self.backend.parse_query('name:david')),
'Xapian::Query(ZXNAMEdavid:(pos=1))')
if xapian.minor_version() >= 2:
self.assertEqual(str(self.backend.parse_query('name:da*')),
'Xapian::Query(('
'XNAMEdavid1:(pos=1) SYNONYM '
'XNAMEdavid2:(pos=1) SYNONYM '
'XNAMEdavid3:(pos=1)))')
else:
self.assertEqual(str(self.backend.parse_query('name:da*')),
'Xapian::Query(('
'XNAMEdavid1:(pos=1) OR '
'XNAMEdavid2:(pos=1) OR '
'XNAMEdavid3:(pos=1)))')
self.assertEqual(str(self.backend.parse_query('name:david1..david2')),
'Xapian::Query(VALUE_RANGE 7 david1 david2)')
self.assertEqual(str(self.backend.parse_query('value:0..10')),
'Xapian::Query(VALUE_RANGE 16 000000000000 000000000010)')
self.assertEqual(str(self.backend.parse_query('value:..10')),
'Xapian::Query(VALUE_RANGE 16 %012d 000000000010)' % (-sys.maxsize - 1))
self.assertEqual(str(self.backend.parse_query('value:10..*')),
'Xapian::Query(VALUE_RANGE 16 000000000010 %012d)' % sys.maxsize)
self.assertEqual(str(self.backend.parse_query('popularity:25.5..100.0')),
b'Xapian::Query(VALUE_RANGE 9 \xb2` \xba@)')
def test_parse_query(self):
self.assertEqual(str(self.backend.parse_query('indexed')),
'Xapian::Query(Zindex:(pos=1))')
self.assertEqual(str(self.backend.parse_query('name:david')),
'Xapian::Query(ZXNAMEdavid:(pos=1))')
if xapian.minor_version() >= 2:
self.assertEqual(
str(self.backend.parse_query('name:da*')), 'Xapian::Query(('
'XNAMEdavid1:(pos=1) SYNONYM '
'XNAMEdavid2:(pos=1) SYNONYM '
'XNAMEdavid3:(pos=1)))')
else:
self.assertEqual(
str(self.backend.parse_query('name:da*')), 'Xapian::Query(('
'XNAMEdavid1:(pos=1) OR '
'XNAMEdavid2:(pos=1) OR '
'XNAMEdavid3:(pos=1)))')
self.assertEqual(str(self.backend.parse_query('name:david1..david2')),
'Xapian::Query(VALUE_RANGE 7 david1 david2)')
self.assertEqual(
str(self.backend.parse_query('value:0..10')),
'Xapian::Query(VALUE_RANGE 16 000000000000 000000000010)')
self.assertEqual(
str(self.backend.parse_query('value:..10')),
'Xapian::Query(VALUE_RANGE 16 %012d 000000000010)' %
(-sys.maxsize - 1))
self.assertEqual(
str(self.backend.parse_query('value:10..*')),
'Xapian::Query(VALUE_RANGE 16 000000000010 %012d)' % sys.maxsize)
self.assertEqual(
str(self.backend.parse_query('popularity:25.5..100.0')),
b'Xapian::Query(VALUE_RANGE 9 \xb2` \xba@)')
def _check_version(self):
""" Checks if the correct version of Xapian is installed """
# every version greater than or equal to XAPIAN_MIN_VERSION is allowed
XAPIAN_MIN_VERSION = (1, 0, 0)
major, minor, revision = xapian.major_version(), xapian.minor_version(), xapian.revision()
if (major, minor, revision) >= XAPIAN_MIN_VERSION:
return
from MoinMoin.error import ConfigurationError
raise ConfigurationError(('MoinMoin needs at least Xapian version '
'%d.%d.%d to work correctly. Either disable Xapian '
'completetly in your wikiconfig or upgrade your Xapian %d.%d.%d '
'installation!') % (XAPIAN_MIN_VERSION + (major, minor, revision)))
def test_parse_query(self):
self.backend.update(self.index, self.sample_objs)
self.assertEqual(str(self.backend.parse_query('indexed')), 'Xapian::Query(Zindex:(pos=1))')
self.assertEqual(str(self.backend.parse_query('name:david')), 'Xapian::Query(ZXNAMEdavid:(pos=1))')
if xapian.minor_version() >= 2:
self.assertEqual(str(self.backend.parse_query('name:da*')), 'Xapian::Query((XNAMEdavid1:(pos=1) SYNONYM XNAMEdavid2:(pos=1) SYNONYM XNAMEdavid3:(pos=1)))')
else:
self.assertEqual(str(self.backend.parse_query('name:da*')), 'Xapian::Query((XNAMEdavid1:(pos=1) OR XNAMEdavid2:(pos=1) OR XNAMEdavid3:(pos=1)))')
self.assertEqual(str(self.backend.parse_query('name:david1..david2')), 'Xapian::Query(VALUE_RANGE 0 david1 david2)')
self.assertEqual(str(self.backend.parse_query('value:0..10')), 'Xapian::Query(VALUE_RANGE 6 000000000000 000000000010)')
self.assertEqual(str(self.backend.parse_query('value:..10')), 'Xapian::Query(VALUE_RANGE 6 %012d 000000000010)' % (-sys.maxint - 1))
self.assertEqual(str(self.backend.parse_query('value:10..*')), 'Xapian::Query(VALUE_RANGE 6 000000000010 %012d)' % sys.maxint)
self.assertEqual(str(self.backend.parse_query('popularity:25.5..100.0')), 'Xapian::Query(VALUE_RANGE 4 \xb2` \xba@)')
def test_parse_query(self):
self.backend.update(self.index, self.sample_objs)
self.assertEqual(str(self.backend.parse_query('indexed')), 'Xapian::Query((indexed:(pos=1) OR Zindex:(pos=1)))')
if xapian.minor_version() >= 2:
self.assertEqual(str(self.backend.parse_query('name:david')), 'Xapian::Query(((XNAMEdavid1:(pos=1) SYNONYM XNAMEdavid2:(pos=1) SYNONYM XNAMEdavid3:(pos=1)) OR ZXNAMEdavid:(pos=1)))')
self.assertEqual(str(self.backend.parse_query('name:da*')), 'Xapian::Query((XNAMEdavid1:(pos=1) SYNONYM XNAMEdavid2:(pos=1) SYNONYM XNAMEdavid3:(pos=1)))')
else:
self.assertEqual(str(self.backend.parse_query('name:david')), 'Xapian::Query((XNAMEdavid1:(pos=1) OR XNAMEdavid2:(pos=1) OR XNAMEdavid3:(pos=1) OR ZXNAMEdavid:(pos=1)))')
self.assertEqual(str(self.backend.parse_query('name:da*')), 'Xapian::Query((XNAMEdavid1:(pos=1) OR XNAMEdavid2:(pos=1) OR XNAMEdavid3:(pos=1)))')
self.assertEqual(str(self.backend.parse_query('name:david1..david2')), 'Xapian::Query(VALUE_RANGE 0 david1 david2)')
self.assertEqual(str(self.backend.parse_query('value:0..10')), 'Xapian::Query(VALUE_RANGE 7 000000000000 000000000010)')
self.assertEqual(str(self.backend.parse_query('value:..10')), 'Xapian::Query(VALUE_RANGE 7 -02147483648 000000000010)')
self.assertEqual(str(self.backend.parse_query('value:10..*')), 'Xapian::Query(VALUE_RANGE 7 000000000010 002147483647)')
self.assertEqual(str(self.backend.parse_query('popularity:25.5..100.0')), 'Xapian::Query(VALUE_RANGE 5 \xb2` \xba@)')
def test_parse_query(self):
self.assertExpectedQuery(self.backend.parse_query('indexed'),
'Zindex@1')
self.assertExpectedQuery(self.backend.parse_query('name:david'),
'ZXNAMEdavid@1')
if xapian.minor_version() >= 2:
# todo: why `SYNONYM WILDCARD OR XNAMEda`?
self.assertExpectedQuery(self.backend.parse_query('name:da*'), [
'(SYNONYM WILDCARD OR XNAMEda)',
'WILDCARD SYNONYM XNAMEda',
])
else:
self.assertEqual(
str(self.backend.parse_query('name:da*')), 'Xapian::Query(('
'XNAMEdavid1:(pos=1) OR '
'XNAMEdavid2:(pos=1) OR '
'XNAMEdavid3:(pos=1)))')
def test_parse_query(self):
self.assertExpectedQuery(
self.backend.parse_query("indexed"), "Zindex@1", xapian12string="Zindex:(pos=1)",
)
self.assertExpectedQuery(
self.backend.parse_query("name:david"), "ZXNAMEdavid@1", xapian12string="ZXNAMEdavid:(pos=1)",
)
if xapian.minor_version() >= 2:
# todo: why `SYNONYM WILDCARD OR XNAMEda`?
self.assertExpectedQuery(
self.backend.parse_query("name:da*"),
["(SYNONYM WILDCARD OR XNAMEda)", "WILDCARD SYNONYM XNAMEda"],
xapian12string="(XNAMEdavid1:(pos=1) SYNONYM " "XNAMEdavid2:(pos=1) SYNONYM " "XNAMEdavid3:(pos=1))",
)
else:
self.assertEqual(
str(self.backend.parse_query("name:da*")),
"Xapian::Query((" "XNAMEdavid1:(pos=1) OR " "XNAMEdavid2:(pos=1) OR " "XNAMEdavid3:(pos=1)))",
)
def test_parse_query(self):
self.assertExpectedQuery(self.backend.parse_query('indexed'), 'Zindex@1',
xapian12string='Zindex:(pos=1)')
self.assertExpectedQuery(self.backend.parse_query('name:david'),
'ZXNAMEdavid@1', xapian12string='ZXNAMEdavid:(pos=1)')
if xapian.minor_version() >= 2:
# todo: why `SYNONYM WILDCARD OR XNAMEda`?
self.assertExpectedQuery(
self.backend.parse_query('name:da*'),
'(SYNONYM WILDCARD OR XNAMEda)',
xapian12string='(XNAMEdavid1:(pos=1) SYNONYM '
'XNAMEdavid2:(pos=1) SYNONYM '
'XNAMEdavid3:(pos=1))')
else:
self.assertEqual(str(self.backend.parse_query('name:da*')),
'Xapian::Query(('
'XNAMEdavid1:(pos=1) OR '
'XNAMEdavid2:(pos=1) OR '
'XNAMEdavid3:(pos=1)))')
def test_all():
# Test the version number reporting functions give plausible results.
v = "%d.%d.%d" % (xapian.major_version(),
xapian.minor_version(),
xapian.revision())
v2 = xapian.version_string()
expect(v2, v, "Unexpected version output")
stem = xapian.Stem("english")
expect(stem.get_description(), "Xapian::Stem(english)", "Unexpected stem.get_description()")
doc = xapian.Document()
doc.set_data("a\0b")
if doc.get_data() == "a":
raise TestFail("get_data+set_data truncates at a zero byte")
expect(doc.get_data(), "a\0b", "get_data+set_data doesn't transparently handle a zero byte")
doc.set_data("is there anybody out there?")
doc.add_term("XYzzy")
doc.add_posting(stem("is"), 1)
doc.add_posting(stem("there"), 2)
doc.add_posting(stem("anybody"), 3)
doc.add_posting(stem("out"), 4)
doc.add_posting(stem("there"), 5)
db = xapian.inmemory_open()
db.add_document(doc)
expect(db.get_doccount(), 1, "Unexpected db.get_doccount()")
terms = ["smoke", "test", "terms"]
expect_query(xapian.Query(xapian.Query.OP_OR, terms),
"(smoke OR test OR terms)")
query1 = xapian.Query(xapian.Query.OP_PHRASE, ("smoke", "test", "tuple"))
query2 = xapian.Query(xapian.Query.OP_XOR, (xapian.Query("smoke"), query1, "string"))
expect_query(query1, "(smoke PHRASE 3 test PHRASE 3 tuple)")
expect_query(query2, "(smoke XOR (smoke PHRASE 3 test PHRASE 3 tuple) XOR string)")
subqs = ["a", "b"]
expect_query(xapian.Query(xapian.Query.OP_OR, subqs), "(a OR b)")
expect_query(xapian.Query(xapian.Query.OP_VALUE_RANGE, 0, '1', '4'),
"VALUE_RANGE 0 1 4")
# Feature test for Query.__iter__
term_count = 0
for term in query2:
term_count += 1
expect(term_count, 4, "Unexpected number of terms in query2")
enq = xapian.Enquire(db)
enq.set_query(xapian.Query(xapian.Query.OP_OR, "there", "is"))
mset = enq.get_mset(0, 10)
expect(mset.size(), 1, "Unexpected mset.size()")
# Feature test for Enquire.matching_terms(docid)
term_count = 0
for term in enq.matching_terms(mset.get_hit(0)):
term_count += 1
expect(term_count, 2, "Unexpected number of matching terms")
# Feature test for MSet.__iter__
msize = 0
for match in mset:
msize += 1
expect(msize, mset.size(), "Unexpected number of entries in mset")
terms = " ".join(enq.matching_terms(mset.get_hit(0)))
expect(terms, "is there", "Unexpected terms")
# Feature test for ESet.__iter__
rset = xapian.RSet()
rset.add_document(1)
eset = enq.get_eset(10, rset)
term_count = 0
for term in eset:
term_count += 1
expect(term_count, 3, "Unexpected number of expand terms")
# Feature test for Database.__iter__
term_count = 0
for term in db:
term_count += 1
expect(term_count, 5, "Unexpected number of terms in db")
# Feature test for Database.allterms
term_count = 0
for term in db.allterms():
term_count += 1
expect(term_count, 5, "Unexpected number of terms in db.allterms")
# Feature test for Database.postlist
count = 0
for posting in db.postlist("there"):
count += 1
expect(count, 1, "Unexpected number of entries in db.postlist('there')")
# Feature test for Database.postlist with empty term (alldocspostlist)
count = 0
for posting in db.postlist(""):
count += 1
expect(count, 1, "Unexpected number of entries in db.postlist('')")
# Feature test for Database.termlist
count = 0
for term in db.termlist(1):
count += 1
expect(count, 5, "Unexpected number of entries in db.termlist(1)")
# Feature test for Database.positionlist
count = 0
for term in db.positionlist(1, "there"):
count += 1
expect(count, 2, "Unexpected number of entries in db.positionlist(1, 'there')")
# Feature test for Document.termlist
count = 0
for term in doc.termlist():
count += 1
expect(count, 5, "Unexpected number of entries in doc.termlist()")
# Feature test for TermIter.skip_to
term = doc.termlist()
term.skip_to('n')
while True:
try:
x = term.next()
except StopIteration:
break
if x.term < 'n':
raise TestFail("TermIter.skip_to didn't skip term '%s'" % x.term)
# Feature test for Document.values
count = 0
for term in doc.values():
count += 1
expect(count, 0, "Unexpected number of entries in doc.values")
# Check exception handling for Xapian::DocNotFoundError
expect_exception(xapian.DocNotFoundError, "Docid 3 not found", db.get_document, 3)
# Check value of OP_ELITE_SET
expect(xapian.Query.OP_ELITE_SET, 10, "Unexpected value for OP_ELITE_SET")
# Feature test for MatchDecider
doc = xapian.Document()
doc.set_data("Two")
doc.add_posting(stem("out"), 1)
doc.add_posting(stem("outside"), 1)
doc.add_posting(stem("source"), 2)
doc.add_value(0, "yes")
db.add_document(doc)
class testmatchdecider(xapian.MatchDecider):
def __call__(self, doc):
return doc.get_value(0) == "yes"
query = xapian.Query(stem("out"))
enquire = xapian.Enquire(db)
enquire.set_query(query)
mset = enquire.get_mset(0, 10, None, testmatchdecider())
expect(mset.size(), 1, "Unexpected number of documents returned by match decider")
expect(mset.get_docid(0), 2, "MatchDecider mset has wrong docid in")
# Feature test for ExpandDecider
class testexpanddecider(xapian.ExpandDecider):
def __call__(self, term):
return (not term.startswith('a'))
enquire = xapian.Enquire(db)
rset = xapian.RSet()
rset.add_document(1)
eset = enquire.get_eset(10, rset, xapian.Enquire.USE_EXACT_TERMFREQ, 1.0, testexpanddecider())
eset_terms = [term[xapian.ESET_TNAME] for term in eset.items]
expect(len(eset_terms), eset.size(), "Unexpected number of terms returned by expand")
if filter(lambda t: t.startswith('a'), eset_terms):
raise TestFail("ExpandDecider was not used")
# Check QueryParser parsing error.
qp = xapian.QueryParser()
expect_exception(xapian.QueryParserError, "Syntax: <expression> AND <expression>", qp.parse_query, "test AND")
# Check QueryParser pure NOT option
qp = xapian.QueryParser()
expect_query(qp.parse_query("NOT test", qp.FLAG_BOOLEAN + qp.FLAG_PURE_NOT),
"(<alldocuments> AND_NOT test:(pos=1))")
# Check QueryParser partial option
qp = xapian.QueryParser()
qp.set_database(db)
qp.set_default_op(xapian.Query.OP_AND)
qp.set_stemming_strategy(qp.STEM_SOME)
qp.set_stemmer(xapian.Stem('en'))
expect_query(qp.parse_query("foo o", qp.FLAG_PARTIAL),
"(Zfoo:(pos=1) AND (out:(pos=2) OR outsid:(pos=2) OR Zo:(pos=2)))")
expect_query(qp.parse_query("foo outside", qp.FLAG_PARTIAL),
"(Zfoo:(pos=1) AND Zoutsid:(pos=2))")
# Test supplying unicode strings
expect_query(xapian.Query(xapian.Query.OP_OR, (u'foo', u'bar')),
'(foo OR bar)')
expect_query(xapian.Query(xapian.Query.OP_OR, ('foo', u'bar\xa3')),
'(foo OR bar\xc2\xa3)')
expect_query(xapian.Query(xapian.Query.OP_OR, ('foo', 'bar\xc2\xa3')),
'(foo OR bar\xc2\xa3)')
expect_query(xapian.Query(xapian.Query.OP_OR, u'foo', u'bar'),
'(foo OR bar)')
expect_query(qp.parse_query(u"NOT t\xe9st", qp.FLAG_BOOLEAN + qp.FLAG_PURE_NOT),
"(<alldocuments> AND_NOT Zt\xc3\xa9st:(pos=1))")
doc = xapian.Document()
doc.set_data(u"Unicode with an acc\xe9nt")
doc.add_posting(stem(u"out\xe9r"), 1)
expect(doc.get_data(), u"Unicode with an acc\xe9nt".encode('utf-8'))
term = doc.termlist().next().term
expect(term, u"out\xe9r".encode('utf-8'))
# Check simple stopper
stop = xapian.SimpleStopper()
qp.set_stopper(stop)
expect(stop('a'), False)
expect_query(qp.parse_query(u"foo bar a", qp.FLAG_BOOLEAN),
"(Zfoo:(pos=1) AND Zbar:(pos=2) AND Za:(pos=3))")
stop.add('a')
expect(stop('a'), True)
expect_query(qp.parse_query(u"foo bar a", qp.FLAG_BOOLEAN),
"(Zfoo:(pos=1) AND Zbar:(pos=2))")
# Feature test for custom Stopper
class my_b_stopper(xapian.Stopper):
def __call__(self, term):
return term == "b"
def get_description(self):
return u"my_b_stopper"
stop = my_b_stopper()
expect(stop.get_description(), u"my_b_stopper")
qp.set_stopper(stop)
expect(stop('a'), False)
expect_query(qp.parse_query(u"foo bar a", qp.FLAG_BOOLEAN),
"(Zfoo:(pos=1) AND Zbar:(pos=2) AND Za:(pos=3))")
expect(stop('b'), True)
expect_query(qp.parse_query(u"foo bar b", qp.FLAG_BOOLEAN),
"(Zfoo:(pos=1) AND Zbar:(pos=2))")
# Test TermGenerator
termgen = xapian.TermGenerator()
doc = xapian.Document()
termgen.set_document(doc)
termgen.index_text('foo bar baz foo')
expect([(item.term, item.wdf, [pos for pos in item.positer]) for item in doc.termlist()], [('bar', 1, [2]), ('baz', 1, [3]), ('foo', 2, [1, 4])])
# Check DateValueRangeProcessor works
context("checking that DateValueRangeProcessor works")
qp = xapian.QueryParser()
vrpdate = xapian.DateValueRangeProcessor(1, 1, 1960)
qp.add_valuerangeprocessor(vrpdate)
query = qp.parse_query('12/03/99..12/04/01')
expect(str(query), 'Xapian::Query(VALUE_RANGE 1 19991203 20011204)')
# Regression test for bug#193, fixed in 1.0.3.
context("running regression test for bug#193")
vrp = xapian.NumberValueRangeProcessor(0, '$', True)
a = '$10'
b = '20'
slot, a, b = vrp(a, b)
expect(slot, 0)
expect(xapian.sortable_unserialise(a), 10)
expect(xapian.sortable_unserialise(b), 20)
# Regression tests copied from PHP (probably always worked in python, but
# let's check...)
context("running regression tests for issues which were found in PHP")
# PHP overload resolution involving boolean types failed.
enq.set_sort_by_value(1, True)
# Regression test - fixed in 0.9.10.1.
oqparser = xapian.QueryParser()
oquery = oqparser.parse_query("I like tea")
# Regression test for bug#192 - fixed in 1.0.3.
enq.set_cutoff(100)
# Test setting and getting metadata
expect(db.get_metadata('Foo'), '')
db.set_metadata('Foo', 'Foo')
expect(db.get_metadata('Foo'), 'Foo')
expect_exception(xapian.InvalidArgumentError, "Empty metadata keys are invalid", db.get_metadata, '')
expect_exception(xapian.InvalidArgumentError, "Empty metadata keys are invalid", db.set_metadata, '', 'Foo')
expect_exception(xapian.InvalidArgumentError, "Empty metadata keys are invalid", db.get_metadata, '')
# Test OP_SCALE_WEIGHT and corresponding constructor
expect_query(xapian.Query(xapian.Query.OP_SCALE_WEIGHT, xapian.Query('foo'), 5),
"5 * foo")
def test_all():
# Test the version number reporting functions give plausible results.
v = "%d.%d.%d" % (xapian.major_version(),
xapian.minor_version(),
xapian.revision())
v2 = xapian.version_string()
expect(v2, v, "Unexpected version output")
# A regexp check would be better, but seems to create a bogus "leak" of -1
# objects in Python 3.
expect(len(xapian.__version__.split('.')), 3, 'xapian.__version__ not X.Y.Z')
expect((xapian.__version__.split('.'))[0], '1', 'xapian.__version__ not "1.Y.Z"')
def access_cvar():
res = xapian.cvar
print("Unhandled constants: ", res)
return res
# Check that SWIG isn't generating cvar (regression test for ticket#297).
expect_exception(AttributeError, "'module' object has no attribute 'cvar'",
access_cvar)
stem = xapian.Stem(b"english")
expect(str(stem), "Xapian::Stem(english)", "Unexpected str(stem)")
doc = xapian.Document()
doc.set_data(b"a\0b")
if doc.get_data() == b"a":
raise TestFail("get_data+set_data truncates at a zero byte")
expect(doc.get_data(), b"a\0b", "get_data+set_data doesn't transparently handle a zero byte")
doc.set_data(b"is there anybody out there?")
doc.add_term(b"XYzzy")
doc.add_posting(stem(b"is"), 1)
doc.add_posting(stem(b"there"), 2)
doc.add_posting(stem(b"anybody"), 3)
doc.add_posting(stem(b"out"), 4)
doc.add_posting(stem(b"there"), 5)
db = xapian.inmemory_open()
db.add_document(doc)
expect(db.get_doccount(), 1, "Unexpected db.get_doccount()")
terms = ["smoke", "test", "terms"]
expect_query(xapian.Query(xapian.Query.OP_OR, [t.encode('utf-8') for t in terms]),
"(smoke OR test OR terms)")
query1 = xapian.Query(xapian.Query.OP_PHRASE, (b"smoke", b"test", b"tuple"))
query2 = xapian.Query(xapian.Query.OP_XOR, (xapian.Query(b"smoke"), query1, b"string"))
expect_query(query1, "(smoke PHRASE 3 test PHRASE 3 tuple)")
expect_query(query2, "(smoke XOR (smoke PHRASE 3 test PHRASE 3 tuple) XOR string)")
subqs = ["a", "b"]
expect_query(xapian.Query(xapian.Query.OP_OR, [s.encode('utf-8') for s in subqs]), "(a OR b)")
expect_query(xapian.Query(xapian.Query.OP_VALUE_RANGE, 0, b'1', b'4'),
"VALUE_RANGE 0 1 4")
# Check database factory functions are wrapped as expected (or not wrapped
# in the first cases):
expect_exception(AttributeError, "'module' object has no attribute 'open_stub'",
lambda : xapian.open_stub(b"nosuchdir/nosuchdb"))
expect_exception(AttributeError, "'module' object has no attribute 'open_stub'",
lambda : xapian.open_stub(b"nosuchdir/nosuchdb", xapian.DB_OPEN))
expect_exception(AttributeError, "'module' object has no attribute 'chert_open'",
lambda : xapian.chert_open(b"nosuchdir/nosuchdb"))
expect_exception(AttributeError, "'module' object has no attribute 'chert_open'",
lambda : xapian.chert_open(b"nosuchdir/nosuchdb", xapian.DB_CREATE))
expect_exception(xapian.DatabaseOpeningError, None,
lambda : xapian.Database(b"nosuchdir/nosuchdb", xapian.DB_BACKEND_STUB))
expect_exception(xapian.DatabaseOpeningError, None,
lambda : xapian.WritableDatabase(b"nosuchdir/nosuchdb", xapian.DB_OPEN|xapian.DB_BACKEND_STUB))
expect_exception(xapian.DatabaseOpeningError, None,
lambda : xapian.Database(b"nosuchdir/nosuchdb", xapian.DB_BACKEND_GLASS))
expect_exception(xapian.DatabaseCreateError, None,
lambda : xapian.WritableDatabase(b"nosuchdir/nosuchdb", xapian.DB_CREATE|xapian.DB_BACKEND_GLASS))
expect_exception(xapian.DatabaseOpeningError, None,
lambda : xapian.Database(b"nosuchdir/nosuchdb", xapian.DB_BACKEND_CHERT))
expect_exception(xapian.DatabaseCreateError, None,
lambda : xapian.WritableDatabase(b"nosuchdir/nosuchdb", xapian.DB_CREATE|xapian.DB_BACKEND_CHERT))
expect_exception(xapian.NetworkError, None,
xapian.remote_open, b"/bin/false", b"")
expect_exception(xapian.NetworkError, None,
xapian.remote_open_writable, b"/bin/false", b"")
expect_exception(xapian.NetworkError, None,
xapian.remote_open, b"127.0.0.1", 0, 1)
expect_exception(xapian.NetworkError, None,
xapian.remote_open_writable, b"127.0.0.1", 0, 1)
# Check wrapping of MatchAll and MatchNothing:
expect_query(xapian.Query.MatchAll, "<alldocuments>")
expect_query(xapian.Query.MatchNothing, "")
# Feature test for Query.__iter__
term_count = 0
for term in query2:
term_count += 1
expect(term_count, 4, "Unexpected number of terms in query2")
enq = xapian.Enquire(db)
enq.set_query(xapian.Query(xapian.Query.OP_OR, b"there", b"is"))
mset = enq.get_mset(0, 10)
expect(mset.size(), 1, "Unexpected mset.size()")
expect(len(mset), 1, "Unexpected mset.size()")
# Feature test for Enquire.matching_terms(docid)
term_count = 0
for term in enq.matching_terms(mset.get_hit(0)):
term_count += 1
expect(term_count, 2, "Unexpected number of matching terms")
# Feature test for MSet.__iter__
msize = 0
for match in mset:
msize += 1
expect(msize, mset.size(), "Unexpected number of entries in mset")
terms = b" ".join(enq.matching_terms(mset.get_hit(0)))
expect(terms, b"is there", "Unexpected terms")
# Feature test for ESet.__iter__
rset = xapian.RSet()
rset.add_document(1)
eset = enq.get_eset(10, rset)
term_count = 0
for term in eset:
term_count += 1
expect(term_count, 3, "Unexpected number of expand terms")
# Feature test for Database.__iter__
term_count = 0
for term in db:
term_count += 1
expect(term_count, 5, "Unexpected number of terms in db")
# Feature test for Database.allterms
term_count = 0
for term in db.allterms():
term_count += 1
expect(term_count, 5, "Unexpected number of terms in db.allterms")
# Feature test for Database.postlist
count = 0
for posting in db.postlist(b"there"):
count += 1
expect(count, 1, "Unexpected number of entries in db.postlist('there')")
# Feature test for Database.postlist with empty term (alldocspostlist)
count = 0
for posting in db.postlist(b""):
count += 1
expect(count, 1, "Unexpected number of entries in db.postlist('')")
# Feature test for Database.termlist
count = 0
for term in db.termlist(1):
count += 1
expect(count, 5, "Unexpected number of entries in db.termlist(1)")
# Feature test for Database.positionlist
count = 0
for term in db.positionlist(1, b"there"):
count += 1
expect(count, 2, "Unexpected number of entries in db.positionlist(1, 'there')")
# Feature test for Document.termlist
count = 0
for term in doc.termlist():
count += 1
expect(count, 5, "Unexpected number of entries in doc.termlist()")
# Feature test for TermIter.skip_to
term = doc.termlist()
term.skip_to(b'n')
while True:
try:
x = next(term)
except StopIteration:
break
if x.term < b'n':
raise TestFail("TermIter.skip_to didn't skip term '%s'" % x.term.decode('utf-8'))
# Feature test for Document.values
count = 0
for term in list(doc.values()):
count += 1
expect(count, 0, "Unexpected number of entries in doc.values")
# Check exception handling for Xapian::DocNotFoundError
expect_exception(xapian.DocNotFoundError, "Docid 3 not found", db.get_document, 3)
# Check value of OP_ELITE_SET
expect(xapian.Query.OP_ELITE_SET, 10, "Unexpected value for OP_ELITE_SET")
# Feature test for MatchDecider
doc = xapian.Document()
doc.set_data(b"Two")
doc.add_posting(stem(b"out"), 1)
doc.add_posting(stem(b"outside"), 1)
doc.add_posting(stem(b"source"), 2)
doc.add_value(0, b"yes")
db.add_document(doc)
class testmatchdecider(xapian.MatchDecider):
def __call__(self, doc):
return doc.get_value(0) == b"yes"
query = xapian.Query(stem(b"out"))
enquire = xapian.Enquire(db)
enquire.set_query(query)
mset = enquire.get_mset(0, 10, None, testmatchdecider())
expect(mset.size(), 1, "Unexpected number of documents returned by match decider")
expect(mset.get_docid(0), 2, "MatchDecider mset has wrong docid in")
# Feature test for ExpandDecider
class testexpanddecider(xapian.ExpandDecider):
def __call__(self, term):
return (not term.startswith(b'a'))
enquire = xapian.Enquire(db)
rset = xapian.RSet()
rset.add_document(1)
eset = enquire.get_eset(10, rset, xapian.Enquire.USE_EXACT_TERMFREQ, 1.0, testexpanddecider())
eset_terms = [item.term for item in eset]
expect(len(eset_terms), eset.size(), "Unexpected number of terms returned by expand")
if [t for t in eset_terms if t.startswith(b'a')]:
raise TestFail("ExpandDecider was not used")
# Check min_wt argument to get_eset() works (new in 1.2.5).
eset = enquire.get_eset(100, rset, xapian.Enquire.USE_EXACT_TERMFREQ)
expect([i.weight for i in eset][-1] < 1.9, True, "test get_eset() without min_wt")
eset = enquire.get_eset(100, rset, xapian.Enquire.USE_EXACT_TERMFREQ, 1.0, None, 1.9)
expect([i.weight for i in eset][-1] >= 1.9, True, "test get_eset() min_wt")
# Check QueryParser parsing error.
qp = xapian.QueryParser()
expect_exception(xapian.QueryParserError, "Syntax: <expression> AND <expression>", qp.parse_query, b"test AND")
# Check QueryParser pure NOT option
qp = xapian.QueryParser()
expect_query(qp.parse_query(b"NOT test", qp.FLAG_BOOLEAN + qp.FLAG_PURE_NOT),
"(<alldocuments> AND_NOT test@1)")
# Check QueryParser partial option
qp = xapian.QueryParser()
qp.set_database(db)
qp.set_default_op(xapian.Query.OP_AND)
qp.set_stemming_strategy(qp.STEM_SOME)
qp.set_stemmer(xapian.Stem(b'en'))
expect_query(qp.parse_query(b"foo o", qp.FLAG_PARTIAL),
"(Zfoo@1 AND ((out@2 SYNONYM outsid@2) OR Zo@2))")
expect_query(qp.parse_query(b"foo outside", qp.FLAG_PARTIAL),
"(Zfoo@1 AND Zoutsid@2)")
# Test supplying unicode strings
expect_query(xapian.Query(xapian.Query.OP_OR, (b'foo', b'bar')),
'(foo OR bar)')
expect_query(xapian.Query(xapian.Query.OP_OR, (b'foo', b'bar\xa3')),
'(foo OR bar\\xa3)')
expect_query(xapian.Query(xapian.Query.OP_OR, (b'foo', b'bar\xc2\xa3')),
'(foo OR bar\u00a3)')
expect_query(xapian.Query(xapian.Query.OP_OR, b'foo', b'bar'),
'(foo OR bar)')
expect_query(qp.parse_query(b"NOT t\xe9st", qp.FLAG_BOOLEAN + qp.FLAG_PURE_NOT),
"(<alldocuments> AND_NOT Zt\u00e9st@1)")
doc = xapian.Document()
doc.set_data(b"Unicode with an acc\xe9nt")
doc.add_posting(stem(b"out\xe9r"), 1)
expect(doc.get_data(), b"Unicode with an acc\xe9nt")
term = next(doc.termlist()).term
expect(term, b"out\xe9r")
# Check simple stopper
stop = xapian.SimpleStopper()
qp.set_stopper(stop)
expect(stop(b'a'), False)
expect_query(qp.parse_query(b"foo bar a", qp.FLAG_BOOLEAN),
"(Zfoo@1 AND Zbar@2 AND Za@3)")
stop.add(b'a')
expect(stop(b'a'), True)
expect_query(qp.parse_query(b"foo bar a", qp.FLAG_BOOLEAN),
"(Zfoo@1 AND Zbar@2)")
# Feature test for custom Stopper
class my_b_stopper(xapian.Stopper):
def __call__(self, term):
return term == b"b"
def get_description(self):
return "my_b_stopper"
stop = my_b_stopper()
expect(stop.get_description(), "my_b_stopper")
qp.set_stopper(stop)
expect(stop(b'a'), False)
expect_query(qp.parse_query(b"foo bar a", qp.FLAG_BOOLEAN),
"(Zfoo@1 AND Zbar@2 AND Za@3)")
expect(stop(b'b'), True)
expect_query(qp.parse_query(b"foo bar b", qp.FLAG_BOOLEAN),
"(Zfoo@1 AND Zbar@2)")
# Test TermGenerator
termgen = xapian.TermGenerator()
doc = xapian.Document()
termgen.set_document(doc)
termgen.index_text(b'foo bar baz foo')
expect([(item.term, item.wdf, [pos for pos in item.positer]) for item in doc.termlist()], [(b'bar', 1, [2]), (b'baz', 1, [3]), (b'foo', 2, [1, 4])])
# Check DateValueRangeProcessor works
context("checking that DateValueRangeProcessor works")
qp = xapian.QueryParser()
vrpdate = xapian.DateValueRangeProcessor(1, 1, 1960)
qp.add_valuerangeprocessor(vrpdate)
query = qp.parse_query(b'12/03/99..12/04/01')
expect(str(query), 'Query(0 * VALUE_RANGE 1 19991203 20011204)')
# Regression test for bug#193, fixed in 1.0.3.
context("running regression test for bug#193")
vrp = xapian.NumberValueRangeProcessor(0, b'$', True)
a = '$10'
b = '20'
slot, a, b = vrp(a, b.encode('utf-8'))
expect(slot, 0)
expect(xapian.sortable_unserialise(a), 10)
expect(xapian.sortable_unserialise(b), 20)
# Feature test for xapian.FieldProcessor
context("running feature test for xapian.FieldProcessor")
class testfieldprocessor(xapian.FieldProcessor):
def __call__(self, s):
if s == 'spam':
raise Exception('already spam')
return xapian.Query("spam")
qp.add_prefix('spam', testfieldprocessor())
qp.add_boolean_prefix('boolspam', testfieldprocessor())
query = qp.parse_query('spam:ignored')
expect(str(query), 'Query(spam)')
# FIXME: This doesn't currently work:
# expect_exception(Exception, 'already spam', qp.parse_query, 'spam:spam')
# Regression tests copied from PHP (probably always worked in python, but
# let's check...)
context("running regression tests for issues which were found in PHP")
# PHP overload resolution involving boolean types failed.
enq.set_sort_by_value(1, True)
# Regression test - fixed in 0.9.10.1.
oqparser = xapian.QueryParser()
oquery = oqparser.parse_query(b"I like tea")
# Regression test for bug#192 - fixed in 1.0.3.
enq.set_cutoff(100)
# Test setting and getting metadata
expect(db.get_metadata(b'Foo'), b'')
db.set_metadata(b'Foo', b'Foo')
expect(db.get_metadata(b'Foo'), b'Foo')
expect_exception(xapian.InvalidArgumentError, "Empty metadata keys are invalid", db.get_metadata, b'')
expect_exception(xapian.InvalidArgumentError, "Empty metadata keys are invalid", db.set_metadata, b'', b'Foo')
expect_exception(xapian.InvalidArgumentError, "Empty metadata keys are invalid", db.get_metadata, b'')
# Test OP_SCALE_WEIGHT and corresponding constructor
expect_query(xapian.Query(xapian.Query.OP_SCALE_WEIGHT, xapian.Query(b'foo'), 5),
"5 * foo")
def test_all():
# Test the version number reporting functions give plausible results.
v = "%d.%d.%d" % (xapian.major_version(), xapian.minor_version(),
xapian.revision())
v2 = xapian.version_string()
expect(v2, v, "Unexpected version output")
# A regexp check would be better, but seems to create a bogus "leak" of -1
# objects in Python 3.
expect(len(xapian.__version__.split('.')), 3,
'xapian.__version__ not X.Y.Z')
expect((xapian.__version__.split('.'))[0], '1',
'xapian.__version__ not "1.Y.Z"')
def access_cvar():
res = xapian.cvar
print("Unhandled constants: ", res)
return res
# Check that SWIG isn't generating cvar (regression test for ticket#297).
#
# Python 3.5 generates a different exception message here to earlier
# versions, so we need a check which matches both.
expect_exception(AttributeError,
lambda msg: msg.find("has no attribute 'cvar'") != -1,
access_cvar)
stem = xapian.Stem(b"english")
expect(str(stem), "Xapian::Stem(english)", "Unexpected str(stem)")
doc = xapian.Document()
doc.set_data(b"a\0b")
if doc.get_data() == b"a":
raise TestFail("get_data+set_data truncates at a zero byte")
expect(doc.get_data(), b"a\0b",
"get_data+set_data doesn't transparently handle a zero byte")
doc.set_data(b"is there anybody out there?")
doc.add_term(b"XYzzy")
doc.add_posting(stem(b"is"), 1)
doc.add_posting(stem(b"there"), 2)
doc.add_posting(stem(b"anybody"), 3)
doc.add_posting(stem(b"out"), 4)
doc.add_posting(stem(b"there"), 5)
db = xapian.WritableDatabase('', xapian.DB_BACKEND_INMEMORY)
db.add_document(doc)
expect(db.get_doccount(), 1, "Unexpected db.get_doccount()")
terms = ["smoke", "test", "terms"]
expect_query(
xapian.Query(xapian.Query.OP_OR, [t.encode('utf-8') for t in terms]),
"(smoke OR test OR terms)")
query1 = xapian.Query(xapian.Query.OP_PHRASE,
(b"smoke", b"test", b"tuple"))
query2 = xapian.Query(xapian.Query.OP_XOR,
(xapian.Query(b"smoke"), query1, b"string"))
expect_query(query1, "(smoke PHRASE 3 test PHRASE 3 tuple)")
expect_query(
query2, "(smoke XOR (smoke PHRASE 3 test PHRASE 3 tuple) XOR string)")
subqs = ["a", "b"]
expect_query(
xapian.Query(xapian.Query.OP_OR, [s.encode('utf-8') for s in subqs]),
"(a OR b)")
expect_query(xapian.Query(xapian.Query.OP_VALUE_RANGE, 0, b'1', b'4'),
"VALUE_RANGE 0 1 4")
# Check database factory functions are wrapped as expected (or not wrapped
# in the first cases):
expect_exception(
AttributeError,
lambda msg: msg.find("has no attribute 'open_stub'") != -1,
lambda: xapian.open_stub(b"nosuchdir/nosuchdb"))
expect_exception(
AttributeError,
lambda msg: msg.find("has no attribute 'open_stub'") != -1,
lambda: xapian.open_stub(b"nosuchdir/nosuchdb", xapian.DB_OPEN))
expect_exception(
xapian.DatabaseOpeningError, None,
lambda: xapian.Database(b"nosuchdir/nosuchdb", xapian.DB_BACKEND_STUB))
expect_exception(
xapian.DatabaseOpeningError, None, lambda: xapian.WritableDatabase(
b"nosuchdir/nosuchdb", xapian.DB_OPEN | xapian.DB_BACKEND_STUB))
expect_exception(
xapian.DatabaseOpeningError, None, lambda: xapian.Database(
b"nosuchdir/nosuchdb", xapian.DB_BACKEND_GLASS))
expect_exception(
xapian.DatabaseCreateError, None, lambda: xapian.WritableDatabase(
b"nosuchdir/nosuchdb", xapian.DB_CREATE | xapian.DB_BACKEND_GLASS))
expect_exception(
xapian.FeatureUnavailableError, None, lambda: xapian.Database(
b"nosuchdir/nosuchdb", xapian.DB_BACKEND_CHERT))
expect_exception(
xapian.FeatureUnavailableError, None, lambda: xapian.WritableDatabase(
b"nosuchdir/nosuchdb", xapian.DB_CREATE | xapian.DB_BACKEND_CHERT))
expect_exception(xapian.NetworkError, None, xapian.remote_open,
b"/bin/false", b"")
expect_exception(xapian.NetworkError, None, xapian.remote_open_writable,
b"/bin/false", b"")
expect_exception(xapian.NetworkError, None, xapian.remote_open,
b"127.0.0.1", 0, 1)
expect_exception(xapian.NetworkError, None, xapian.remote_open_writable,
b"127.0.0.1", 0, 1)
# Check wrapping of MatchAll and MatchNothing:
expect_query(xapian.Query.MatchAll, "<alldocuments>")
expect_query(xapian.Query.MatchNothing, "")
# Feature test for Query.__iter__
term_count = 0
for term in query2:
term_count += 1
expect(term_count, 4, "Unexpected number of terms in query2")
enq = xapian.Enquire(db)
enq.set_query(xapian.Query(xapian.Query.OP_OR, b"there", b"is"))
mset = enq.get_mset(0, 10)
expect(mset.size(), 1, "Unexpected mset.size()")
expect(len(mset), 1, "Unexpected mset.size()")
# Feature test for Enquire.matching_terms(docid)
term_count = 0
for term in enq.matching_terms(mset.get_hit(0)):
term_count += 1
expect(term_count, 2, "Unexpected number of matching terms")
# Feature test for MSet.__iter__
msize = 0
for match in mset:
msize += 1
expect(msize, mset.size(), "Unexpected number of entries in mset")
terms = b" ".join(enq.matching_terms(mset.get_hit(0)))
expect(terms, b"is there", "Unexpected terms")
# Feature test for ESet.__iter__
rset = xapian.RSet()
rset.add_document(1)
eset = enq.get_eset(10, rset)
term_count = 0
for term in eset:
term_count += 1
expect(term_count, 3, "Unexpected number of expand terms")
# Feature test for Database.__iter__
term_count = 0
for term in db:
term_count += 1
expect(term_count, 5, "Unexpected number of terms in db")
# Feature test for Database.allterms
term_count = 0
for term in db.allterms():
term_count += 1
expect(term_count, 5, "Unexpected number of terms in db.allterms")
# Feature test for Database.postlist
count = 0
for posting in db.postlist(b"there"):
count += 1
expect(count, 1, "Unexpected number of entries in db.postlist('there')")
# Feature test for Database.postlist with empty term (alldocspostlist)
count = 0
for posting in db.postlist(b""):
count += 1
expect(count, 1, "Unexpected number of entries in db.postlist('')")
# Feature test for Database.termlist
count = 0
for term in db.termlist(1):
count += 1
expect(count, 5, "Unexpected number of entries in db.termlist(1)")
# Feature test for Database.positionlist
count = 0
for term in db.positionlist(1, b"there"):
count += 1
expect(count, 2,
"Unexpected number of entries in db.positionlist(1, 'there')")
# Feature test for Document.termlist
count = 0
for term in doc.termlist():
count += 1
expect(count, 5, "Unexpected number of entries in doc.termlist()")
# Feature test for TermIter.skip_to
term = doc.termlist()
term.skip_to(b'n')
while True:
try:
x = next(term)
except StopIteration:
break
if x.term < b'n':
raise TestFail("TermIter.skip_to didn't skip term '%s'" %
x.term.decode('utf-8'))
# Feature test for Document.values
count = 0
for term in list(doc.values()):
count += 1
expect(count, 0, "Unexpected number of entries in doc.values")
# Check exception handling for Xapian::DocNotFoundError
expect_exception(xapian.DocNotFoundError, "Docid 3 not found",
db.get_document, 3)
# Check value of OP_ELITE_SET
expect(xapian.Query.OP_ELITE_SET, 10, "Unexpected value for OP_ELITE_SET")
# Feature test for MatchDecider
doc = xapian.Document()
doc.set_data(b"Two")
doc.add_posting(stem(b"out"), 1)
doc.add_posting(stem(b"outside"), 1)
doc.add_posting(stem(b"source"), 2)
doc.add_value(0, b"yes")
db.add_document(doc)
class testmatchdecider(xapian.MatchDecider):
def __call__(self, doc):
return doc.get_value(0) == b"yes"
query = xapian.Query(stem(b"out"))
enquire = xapian.Enquire(db)
enquire.set_query(query)
mset = enquire.get_mset(0, 10, None, testmatchdecider())
expect(mset.size(), 1,
"Unexpected number of documents returned by match decider")
expect(mset.get_docid(0), 2, "MatchDecider mset has wrong docid in")
# Feature test for ExpandDecider
class testexpanddecider(xapian.ExpandDecider):
def __call__(self, term):
return (not term.startswith(b'a'))
enquire = xapian.Enquire(db)
rset = xapian.RSet()
rset.add_document(1)
eset = enquire.get_eset(10, rset, xapian.Enquire.USE_EXACT_TERMFREQ, 1.0,
testexpanddecider())
eset_terms = [item.term for item in eset]
expect(len(eset_terms), eset.size(),
"Unexpected number of terms returned by expand")
if [t for t in eset_terms if t.startswith(b'a')]:
raise TestFail("ExpandDecider was not used")
# Check min_wt argument to get_eset() works (new in 1.2.5).
eset = enquire.get_eset(100, rset, xapian.Enquire.USE_EXACT_TERMFREQ)
expect([i.weight for i in eset][-1] < 1.9, True,
"test get_eset() without min_wt")
eset = enquire.get_eset(100, rset, xapian.Enquire.USE_EXACT_TERMFREQ, 1.0,
None, 1.9)
expect([i.weight for i in eset][-1] >= 1.9, True, "test get_eset() min_wt")
# Check QueryParser parsing error.
qp = xapian.QueryParser()
expect_exception(xapian.QueryParserError,
"Syntax: <expression> AND <expression>", qp.parse_query,
b"test AND")
# Check QueryParser pure NOT option
qp = xapian.QueryParser()
expect_query(
qp.parse_query(b"NOT test", qp.FLAG_BOOLEAN + qp.FLAG_PURE_NOT),
"(<alldocuments> AND_NOT test@1)")
# Check QueryParser partial option
qp = xapian.QueryParser()
qp.set_database(db)
qp.set_default_op(xapian.Query.OP_AND)
qp.set_stemming_strategy(qp.STEM_SOME)
qp.set_stemmer(xapian.Stem(b'en'))
expect_query(qp.parse_query(b"foo o", qp.FLAG_PARTIAL),
"(Zfoo@1 AND ((SYNONYM WILDCARD OR o) OR Zo@2))")
expect_query(qp.parse_query(b"foo outside", qp.FLAG_PARTIAL),
"(Zfoo@1 AND ((SYNONYM WILDCARD OR outside) OR Zoutsid@2))")
# Test supplying unicode strings
expect_query(xapian.Query(xapian.Query.OP_OR, (b'foo', b'bar')),
'(foo OR bar)')
expect_query(xapian.Query(xapian.Query.OP_OR, (b'foo', b'bar\xa3')),
'(foo OR bar\\xa3)')
expect_query(xapian.Query(xapian.Query.OP_OR, (b'foo', b'bar\xc2\xa3')),
'(foo OR bar\u00a3)')
expect_query(xapian.Query(xapian.Query.OP_OR, b'foo', b'bar'),
'(foo OR bar)')
expect_query(
qp.parse_query(b"NOT t\xe9st", qp.FLAG_BOOLEAN + qp.FLAG_PURE_NOT),
"(<alldocuments> AND_NOT Zt\u00e9st@1)")
doc = xapian.Document()
doc.set_data(b"Unicode with an acc\xe9nt")
doc.add_posting(stem(b"out\xe9r"), 1)
expect(doc.get_data(), b"Unicode with an acc\xe9nt")
term = next(doc.termlist()).term
expect(term, b"out\xe9r")
# Check simple stopper
stop = xapian.SimpleStopper()
qp.set_stopper(stop)
expect(stop(b'a'), False)
expect_query(qp.parse_query(b"foo bar a", qp.FLAG_BOOLEAN),
"(Zfoo@1 AND Zbar@2 AND Za@3)")
stop.add(b'a')
expect(stop(b'a'), True)
expect_query(qp.parse_query(b"foo bar a", qp.FLAG_BOOLEAN),
"(Zfoo@1 AND Zbar@2)")
# Feature test for custom Stopper
class my_b_stopper(xapian.Stopper):
def __call__(self, term):
return term == b"b"
def get_description(self):
return "my_b_stopper"
stop = my_b_stopper()
expect(stop.get_description(), "my_b_stopper")
qp.set_stopper(stop)
expect(stop(b'a'), False)
expect_query(qp.parse_query(b"foo bar a", qp.FLAG_BOOLEAN),
"(Zfoo@1 AND Zbar@2 AND Za@3)")
expect(stop(b'b'), True)
expect_query(qp.parse_query(b"foo bar b", qp.FLAG_BOOLEAN),
"(Zfoo@1 AND Zbar@2)")
# Test TermGenerator
termgen = xapian.TermGenerator()
doc = xapian.Document()
termgen.set_document(doc)
termgen.index_text(b'foo bar baz foo')
expect([(item.term, item.wdf, [pos for pos in item.positer])
for item in doc.termlist()], [(b'bar', 1, [2]), (b'baz', 1, [3]),
(b'foo', 2, [1, 4])])
# Check DateValueRangeProcessor works
context("checking that DateValueRangeProcessor works")
qp = xapian.QueryParser()
vrpdate = xapian.DateValueRangeProcessor(1, 1, 1960)
qp.add_valuerangeprocessor(vrpdate)
query = qp.parse_query(b'12/03/99..12/04/01')
expect(str(query), 'Query(VALUE_RANGE 1 19991203 20011204)')
# Regression test for bug#193, fixed in 1.0.3.
context("running regression test for bug#193")
vrp = xapian.NumberValueRangeProcessor(0, b'$', True)
a = '$10'
b = '20'
slot, a, b = vrp(a, b.encode('utf-8'))
expect(slot, 0)
expect(xapian.sortable_unserialise(a), 10)
expect(xapian.sortable_unserialise(b), 20)
# Feature test for xapian.FieldProcessor
context("running feature test for xapian.FieldProcessor")
class testfieldprocessor(xapian.FieldProcessor):
def __call__(self, s):
if s == 'spam':
raise Exception('already spam')
return xapian.Query("spam")
qp.add_prefix('spam', testfieldprocessor())
qp.add_boolean_prefix('boolspam', testfieldprocessor())
query = qp.parse_query('spam:ignored')
expect(str(query), 'Query(spam)')
# FIXME: This doesn't currently work:
# expect_exception(Exception, 'already spam', qp.parse_query, 'spam:spam')
# Regression tests copied from PHP (probably always worked in python, but
# let's check...)
context("running regression tests for issues which were found in PHP")
# PHP overload resolution involving boolean types failed.
enq.set_sort_by_value(1, True)
# Regression test - fixed in 0.9.10.1.
oqparser = xapian.QueryParser()
oquery = oqparser.parse_query(b"I like tea")
# Regression test for bug#192 - fixed in 1.0.3.
enq.set_cutoff(100)
# Test setting and getting metadata
expect(db.get_metadata(b'Foo'), b'')
db.set_metadata(b'Foo', b'Foo')
expect(db.get_metadata(b'Foo'), b'Foo')
expect_exception(xapian.InvalidArgumentError,
"Empty metadata keys are invalid", db.get_metadata, b'')
expect_exception(xapian.InvalidArgumentError,
"Empty metadata keys are invalid", db.set_metadata, b'',
b'Foo')
expect_exception(xapian.InvalidArgumentError,
"Empty metadata keys are invalid", db.get_metadata, b'')
# Test OP_SCALE_WEIGHT and corresponding constructor
expect_query(
xapian.Query(xapian.Query.OP_SCALE_WEIGHT, xapian.Query(b'foo'), 5),
"5 * foo")
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
r"""_checkxapian.py: Check the version of xapian used.
Raises an ImportError on import if the version used is too old to be used at
all.
"""
__docformat__ = "restructuredtext en"
# The minimum version of xapian required to work at all.
min_xapian_version = (1, 0, 6)
# Dictionary of features we can't support do to them being missing from the
# available version of xapian.
missing_features = {}
import xapian
versions = xapian.major_version(), xapian.minor_version(), xapian.revision()
if versions < min_xapian_version:
raise ImportError("""
Xapian Python bindings installed, but need at least version %d.%d.%d - got %s
""".strip() % tuple(list(min_xapian_version) + [xapian.version_string()]))
if not hasattr(xapian, 'TermCountMatchSpy'):
missing_features['tags'] = 1
if not hasattr(xapian, 'CategorySelectMatchSpy'):
missing_features['facets'] = 1
def test_all():
# Test the version number reporting functions give plausible results.
v = "%d.%d.%d" % (xapian.major_version(), xapian.minor_version(), xapian.revision())
v2 = xapian.version_string()
expect(v2, v, "Unexpected version output")
def access_cvar():
return xapian.cvar
# Check that SWIG isn't generating cvar (regression test for ticket#297).
expect_exception(AttributeError, "'module' object has no attribute 'cvar'", access_cvar)
stem = xapian.Stem("english")
expect(str(stem), "Xapian::Stem(english)", "Unexpected str(stem)")
doc = xapian.Document()
doc.set_data("a\0b")
if doc.get_data() == "a":
raise TestFail("get_data+set_data truncates at a zero byte")
expect(doc.get_data(), "a\0b", "get_data+set_data doesn't transparently handle a zero byte")
doc.set_data("is there anybody out there?")
doc.add_term("XYzzy")
doc.add_posting(stem("is"), 1)
doc.add_posting(stem("there"), 2)
doc.add_posting(stem("anybody"), 3)
doc.add_posting(stem("out"), 4)
doc.add_posting(stem("there"), 5)
db = xapian.inmemory_open()
db.add_document(doc)
expect(db.get_doccount(), 1, "Unexpected db.get_doccount()")
terms = ["smoke", "test", "terms"]
expect_query(xapian.Query(xapian.Query.OP_OR, terms), "(smoke OR test OR terms)")
query1 = xapian.Query(xapian.Query.OP_PHRASE, ("smoke", "test", "tuple"))
query2 = xapian.Query(xapian.Query.OP_XOR, (xapian.Query("smoke"), query1, "string"))
expect_query(query1, "(smoke PHRASE 3 test PHRASE 3 tuple)")
expect_query(query2, "(smoke XOR (smoke PHRASE 3 test PHRASE 3 tuple) XOR string)")
subqs = ["a", "b"]
expect_query(xapian.Query(xapian.Query.OP_OR, subqs), "(a OR b)")
expect_query(xapian.Query(xapian.Query.OP_VALUE_RANGE, 0, "1", "4"), "VALUE_RANGE 0 1 4")
# Check database factory functions are wrapped as expected:
expect_exception(xapian.DatabaseOpeningError, None, xapian.open_stub, "nosuchdir/nosuchdb")
expect_exception(xapian.DatabaseOpeningError, None, xapian.open_stub, "nosuchdir/nosuchdb", xapian.DB_OPEN)
expect_exception(xapian.DatabaseOpeningError, None, xapian.brass_open, "nosuchdir/nosuchdb")
expect_exception(xapian.DatabaseCreateError, None, xapian.brass_open, "nosuchdir/nosuchdb", xapian.DB_CREATE)
expect_exception(xapian.DatabaseOpeningError, None, xapian.chert_open, "nosuchdir/nosuchdb")
expect_exception(xapian.DatabaseCreateError, None, xapian.chert_open, "nosuchdir/nosuchdb", xapian.DB_CREATE)
expect_exception(xapian.NetworkError, None, xapian.remote_open, "/bin/false", "")
expect_exception(xapian.NetworkError, None, xapian.remote_open_writable, "/bin/false", "")
expect_exception(xapian.NetworkError, None, xapian.remote_open, "127.0.0.1", 0, 1)
expect_exception(xapian.NetworkError, None, xapian.remote_open_writable, "127.0.0.1", 0, 1)
# Check wrapping of MatchAll and MatchNothing:
expect_query(xapian.Query.MatchAll, "<alldocuments>")
expect_query(xapian.Query.MatchNothing, "")
# Feature test for Query.__iter__
term_count = 0
for term in query2:
term_count += 1
expect(term_count, 4, "Unexpected number of terms in query2")
enq = xapian.Enquire(db)
enq.set_query(xapian.Query(xapian.Query.OP_OR, "there", "is"))
mset = enq.get_mset(0, 10)
expect(mset.size(), 1, "Unexpected mset.size()")
expect(len(mset), 1, "Unexpected mset.size()")
# Feature test for Enquire.matching_terms(docid)
term_count = 0
for term in enq.matching_terms(mset.get_hit(0)):
term_count += 1
expect(term_count, 2, "Unexpected number of matching terms")
# Feature test for MSet.__iter__
msize = 0
for match in mset:
msize += 1
expect(msize, mset.size(), "Unexpected number of entries in mset")
terms = " ".join(enq.matching_terms(mset.get_hit(0)))
expect(terms, "is there", "Unexpected terms")
# Feature test for ESet.__iter__
rset = xapian.RSet()
rset.add_document(1)
eset = enq.get_eset(10, rset)
term_count = 0
for term in eset:
term_count += 1
expect(term_count, 3, "Unexpected number of expand terms")
# Feature test for Database.__iter__
term_count = 0
for term in db:
term_count += 1
expect(term_count, 5, "Unexpected number of terms in db")
# Feature test for Database.allterms
term_count = 0
for term in db.allterms():
term_count += 1
expect(term_count, 5, "Unexpected number of terms in db.allterms")
# Feature test for Database.postlist
count = 0
for posting in db.postlist("there"):
count += 1
expect(count, 1, "Unexpected number of entries in db.postlist('there')")
# Feature test for Database.postlist with empty term (alldocspostlist)
count = 0
for posting in db.postlist(""):
count += 1
expect(count, 1, "Unexpected number of entries in db.postlist('')")
# Feature test for Database.termlist
count = 0
for term in db.termlist(1):
count += 1
expect(count, 5, "Unexpected number of entries in db.termlist(1)")
# Feature test for Database.positionlist
count = 0
for term in db.positionlist(1, "there"):
count += 1
expect(count, 2, "Unexpected number of entries in db.positionlist(1, 'there')")
# Feature test for Document.termlist
count = 0
for term in doc.termlist():
count += 1
expect(count, 5, "Unexpected number of entries in doc.termlist()")
# Feature test for TermIter.skip_to
term = doc.termlist()
term.skip_to("n")
while True:
try:
x = next(term)
except StopIteration:
break
if x.term < "n":
raise TestFail("TermIter.skip_to didn't skip term '%s'" % x.term)
# Feature test for Document.values
count = 0
for term in doc.values():
count += 1
expect(count, 0, "Unexpected number of entries in doc.values")
# Check exception handling for Xapian::DocNotFoundError
expect_exception(xapian.DocNotFoundError, "Docid 3 not found", db.get_document, 3)
# Check value of OP_ELITE_SET
expect(xapian.Query.OP_ELITE_SET, 10, "Unexpected value for OP_ELITE_SET")
# Feature test for MatchDecider
doc = xapian.Document()
doc.set_data("Two")
doc.add_posting(stem("out"), 1)
doc.add_posting(stem("outside"), 1)
doc.add_posting(stem("source"), 2)
doc.add_value(0, "yes")
db.add_document(doc)
class testmatchdecider(xapian.MatchDecider):
def __call__(self, doc):
return doc.get_value(0) == "yes"
query = xapian.Query(stem("out"))
enquire = xapian.Enquire(db)
enquire.set_query(query)
mset = enquire.get_mset(0, 10, None, testmatchdecider())
expect(mset.size(), 1, "Unexpected number of documents returned by match decider")
expect(mset.get_docid(0), 2, "MatchDecider mset has wrong docid in")
# Feature test for ExpandDecider
class testexpanddecider(xapian.ExpandDecider):
def __call__(self, term):
return not term.startswith("a")
enquire = xapian.Enquire(db)
rset = xapian.RSet()
rset.add_document(1)
eset = enquire.get_eset(10, rset, xapian.Enquire.USE_EXACT_TERMFREQ, 1.0, testexpanddecider())
eset_terms = [term[xapian.ESET_TNAME] for term in eset.items]
expect(len(eset_terms), eset.size(), "Unexpected number of terms returned by expand")
if [t for t in eset_terms if t.startswith("a")]:
raise TestFail("ExpandDecider was not used")
# Check min_wt argument to get_eset() works (new in 1.2.5).
eset = enquire.get_eset(100, rset, xapian.Enquire.USE_EXACT_TERMFREQ)
expect(eset.items[-1][xapian.ESET_WT] < 1.9, True, "test get_eset() without min_wt")
eset = enquire.get_eset(100, rset, xapian.Enquire.USE_EXACT_TERMFREQ, 1.0, None, 1.9)
expect(eset.items[-1][xapian.ESET_WT] >= 1.9, True, "test get_eset() min_wt")
# Check QueryParser parsing error.
qp = xapian.QueryParser()
expect_exception(xapian.QueryParserError, "Syntax: <expression> AND <expression>", qp.parse_query, "test AND")
# Check QueryParser pure NOT option
qp = xapian.QueryParser()
expect_query(qp.parse_query("NOT test", qp.FLAG_BOOLEAN + qp.FLAG_PURE_NOT), "(<alldocuments> AND_NOT test@1)")
# Check QueryParser partial option
qp = xapian.QueryParser()
qp.set_database(db)
qp.set_default_op(xapian.Query.OP_AND)
qp.set_stemming_strategy(qp.STEM_SOME)
qp.set_stemmer(xapian.Stem("en"))
expect_query(qp.parse_query("foo o", qp.FLAG_PARTIAL), "(Zfoo@1 AND ((out@2 SYNONYM outsid@2) OR Zo@2))")
expect_query(qp.parse_query("foo outside", qp.FLAG_PARTIAL), "(Zfoo@1 AND Zoutsid@2)")
# Test supplying unicode strings
expect_query(xapian.Query(xapian.Query.OP_OR, (u"foo", u"bar")), "(foo OR bar)")
expect_query(xapian.Query(xapian.Query.OP_OR, ("foo", u"bar\xa3")), "(foo OR bar\xc2\xa3)")
expect_query(xapian.Query(xapian.Query.OP_OR, ("foo", "bar\xc2\xa3")), "(foo OR bar\xc2\xa3)")
expect_query(xapian.Query(xapian.Query.OP_OR, u"foo", u"bar"), "(foo OR bar)")
expect_query(
qp.parse_query(u"NOT t\xe9st", qp.FLAG_BOOLEAN + qp.FLAG_PURE_NOT), "(<alldocuments> AND_NOT Zt\xc3\xa9st@1)"
)
doc = xapian.Document()
doc.set_data(u"Unicode with an acc\xe9nt")
doc.add_posting(stem(u"out\xe9r"), 1)
expect(doc.get_data(), u"Unicode with an acc\xe9nt".encode("utf-8"))
term = doc.termlist().next().term
expect(term, u"out\xe9r".encode("utf-8"))
# Check simple stopper
stop = xapian.SimpleStopper()
qp.set_stopper(stop)
expect(stop("a"), False)
expect_query(qp.parse_query(u"foo bar a", qp.FLAG_BOOLEAN), "(Zfoo@1 AND Zbar@2 AND Za@3)")
stop.add("a")
expect(stop("a"), True)
expect_query(qp.parse_query(u"foo bar a", qp.FLAG_BOOLEAN), "(Zfoo@1 AND Zbar@2)")
# Feature test for custom Stopper
class my_b_stopper(xapian.Stopper):
def __call__(self, term):
return term == "b"
def get_description(self):
return u"my_b_stopper"
stop = my_b_stopper()
expect(stop.get_description(), u"my_b_stopper")
qp.set_stopper(stop)
expect(stop("a"), False)
expect_query(qp.parse_query(u"foo bar a", qp.FLAG_BOOLEAN), "(Zfoo@1 AND Zbar@2 AND Za@3)")
expect(stop("b"), True)
expect_query(qp.parse_query(u"foo bar b", qp.FLAG_BOOLEAN), "(Zfoo@1 AND Zbar@2)")
# Test TermGenerator
termgen = xapian.TermGenerator()
doc = xapian.Document()
termgen.set_document(doc)
termgen.index_text("foo bar baz foo")
expect(
[(item.term, item.wdf, [pos for pos in item.positer]) for item in doc.termlist()],
[("bar", 1, [2]), ("baz", 1, [3]), ("foo", 2, [1, 4])],
)
# Check DateValueRangeProcessor works
context("checking that DateValueRangeProcessor works")
qp = xapian.QueryParser()
vrpdate = xapian.DateValueRangeProcessor(1, 1, 1960)
qp.add_valuerangeprocessor(vrpdate)
query = qp.parse_query("12/03/99..12/04/01")
expect(str(query), "Query(0 * VALUE_RANGE 1 19991203 20011204)")
# Regression test for bug#193, fixed in 1.0.3.
context("running regression test for bug#193")
vrp = xapian.NumberValueRangeProcessor(0, "$", True)
a = "$10"
b = "20"
slot, a, b = vrp(a, b)
expect(slot, 0)
expect(xapian.sortable_unserialise(a), 10)
expect(xapian.sortable_unserialise(b), 20)
# Regression tests copied from PHP (probably always worked in python, but
# let's check...)
context("running regression tests for issues which were found in PHP")
# PHP overload resolution involving boolean types failed.
enq.set_sort_by_value(1, True)
# Regression test - fixed in 0.9.10.1.
oqparser = xapian.QueryParser()
oquery = oqparser.parse_query("I like tea")
# Regression test for bug#192 - fixed in 1.0.3.
enq.set_cutoff(100)
# Test setting and getting metadata
expect(db.get_metadata("Foo"), "")
db.set_metadata("Foo", "Foo")
expect(db.get_metadata("Foo"), "Foo")
expect_exception(xapian.InvalidArgumentError, "Empty metadata keys are invalid", db.get_metadata, "")
expect_exception(xapian.InvalidArgumentError, "Empty metadata keys are invalid", db.set_metadata, "", "Foo")
expect_exception(xapian.InvalidArgumentError, "Empty metadata keys are invalid", db.get_metadata, "")
# Test OP_SCALE_WEIGHT and corresponding constructor
expect_query(xapian.Query(xapian.Query.OP_SCALE_WEIGHT, xapian.Query("foo"), 5), "5 * foo")
def test_all():
# Test the version number reporting functions give plausible results.
v = "%d.%d.%d" % (xapian.major_version(), xapian.minor_version(),
xapian.revision())
v2 = xapian.version_string()
expect(v2, v, "Unexpected version output")
def access_cvar():
return xapian.cvar
# Check that SWIG isn't generating cvar (regression test for ticket#297).
expect_exception(AttributeError, "'module' object has no attribute 'cvar'",
access_cvar)
stem = xapian.Stem("english")
expect(str(stem), "Xapian::Stem(english)", "Unexpected str(stem)")
doc = xapian.Document()
doc.set_data("a\0b")
if doc.get_data() == "a":
raise TestFail("get_data+set_data truncates at a zero byte")
expect(doc.get_data(), "a\0b",
"get_data+set_data doesn't transparently handle a zero byte")
doc.set_data("is there anybody out there?")
doc.add_term("XYzzy")
doc.add_posting(stem("is"), 1)
doc.add_posting(stem("there"), 2)
doc.add_posting(stem("anybody"), 3)
doc.add_posting(stem("out"), 4)
doc.add_posting(stem("there"), 5)
db = xapian.inmemory_open()
db.add_document(doc)
expect(db.get_doccount(), 1, "Unexpected db.get_doccount()")
terms = ["smoke", "test", "terms"]
expect_query(xapian.Query(xapian.Query.OP_OR, terms),
"(smoke OR test OR terms)")
query1 = xapian.Query(xapian.Query.OP_PHRASE, ("smoke", "test", "tuple"))
query2 = xapian.Query(xapian.Query.OP_XOR,
(xapian.Query("smoke"), query1, "string"))
expect_query(query1, "(smoke PHRASE 3 test PHRASE 3 tuple)")
expect_query(
query2, "(smoke XOR (smoke PHRASE 3 test PHRASE 3 tuple) XOR string)")
subqs = ["a", "b"]
expect_query(xapian.Query(xapian.Query.OP_OR, subqs), "(a OR b)")
expect_query(xapian.Query(xapian.Query.OP_VALUE_RANGE, 0, '1', '4'),
"VALUE_RANGE 0 1 4")
expect_query(xapian.Query.MatchAll, "<alldocuments>")
expect_query(xapian.Query.MatchNothing, "")
# Feature test for Query.__iter__
term_count = 0
for term in query2:
term_count += 1
expect(term_count, 4, "Unexpected number of terms in query2")
enq = xapian.Enquire(db)
enq.set_query(xapian.Query(xapian.Query.OP_OR, "there", "is"))
mset = enq.get_mset(0, 10)
expect(mset.size(), 1, "Unexpected mset.size()")
expect(len(mset), 1, "Unexpected mset.size()")
# Feature test for Enquire.matching_terms(docid)
term_count = 0
for term in enq.matching_terms(mset.get_hit(0)):
term_count += 1
expect(term_count, 2, "Unexpected number of matching terms")
# Feature test for MSet.__iter__
msize = 0
for match in mset:
msize += 1
expect(msize, mset.size(), "Unexpected number of entries in mset")
terms = " ".join(enq.matching_terms(mset.get_hit(0)))
expect(terms, "is there", "Unexpected terms")
# Feature test for ESet.__iter__
rset = xapian.RSet()
rset.add_document(1)
eset = enq.get_eset(10, rset)
term_count = 0
for term in eset:
term_count += 1
expect(term_count, 3, "Unexpected number of expand terms")
# Feature test for Database.__iter__
term_count = 0
for term in db:
term_count += 1
expect(term_count, 5, "Unexpected number of terms in db")
# Feature test for Database.allterms
term_count = 0
for term in db.allterms():
term_count += 1
expect(term_count, 5, "Unexpected number of terms in db.allterms")
# Feature test for Database.postlist
count = 0
for posting in db.postlist("there"):
count += 1
expect(count, 1, "Unexpected number of entries in db.postlist('there')")
# Feature test for Database.postlist with empty term (alldocspostlist)
count = 0
for posting in db.postlist(""):
count += 1
expect(count, 1, "Unexpected number of entries in db.postlist('')")
# Feature test for Database.termlist
count = 0
for term in db.termlist(1):
count += 1
expect(count, 5, "Unexpected number of entries in db.termlist(1)")
# Feature test for Database.positionlist
count = 0
for term in db.positionlist(1, "there"):
count += 1
expect(count, 2,
"Unexpected number of entries in db.positionlist(1, 'there')")
# Feature test for Document.termlist
count = 0
for term in doc.termlist():
count += 1
expect(count, 5, "Unexpected number of entries in doc.termlist()")
# Feature test for TermIter.skip_to
term = doc.termlist()
term.skip_to('n')
while True:
try:
x = next(term)
except StopIteration:
break
if x.term < 'n':
raise TestFail("TermIter.skip_to didn't skip term '%s'" % x.term)
# Feature test for Document.values
count = 0
for term in doc.values():
count += 1
expect(count, 0, "Unexpected number of entries in doc.values")
# Check exception handling for Xapian::DocNotFoundError
expect_exception(xapian.DocNotFoundError, "Docid 3 not found",
db.get_document, 3)
# Check value of OP_ELITE_SET
expect(xapian.Query.OP_ELITE_SET, 10, "Unexpected value for OP_ELITE_SET")
# Feature test for MatchDecider
doc = xapian.Document()
doc.set_data("Two")
doc.add_posting(stem("out"), 1)
doc.add_posting(stem("outside"), 1)
doc.add_posting(stem("source"), 2)
doc.add_value(0, "yes")
db.add_document(doc)
class testmatchdecider(xapian.MatchDecider):
def __call__(self, doc):
return doc.get_value(0) == "yes"
query = xapian.Query(stem("out"))
enquire = xapian.Enquire(db)
enquire.set_query(query)
mset = enquire.get_mset(0, 10, None, testmatchdecider())
expect(mset.size(), 1,
"Unexpected number of documents returned by match decider")
expect(mset.get_docid(0), 2, "MatchDecider mset has wrong docid in")
# Feature test for ExpandDecider
class testexpanddecider(xapian.ExpandDecider):
def __call__(self, term):
return (not term.startswith('a'))
enquire = xapian.Enquire(db)
rset = xapian.RSet()
rset.add_document(1)
eset = enquire.get_eset(10, rset, xapian.Enquire.USE_EXACT_TERMFREQ, 1.0,
testexpanddecider())
eset_terms = [term[xapian.ESET_TNAME] for term in eset.items]
expect(len(eset_terms), eset.size(),
"Unexpected number of terms returned by expand")
if [t for t in eset_terms if t.startswith('a')]:
raise TestFail("ExpandDecider was not used")
# Check min_wt argument to get_eset() works (new in 1.2.5).
eset = enquire.get_eset(100, rset, xapian.Enquire.USE_EXACT_TERMFREQ)
expect(eset.items[-1][xapian.ESET_WT] < 1.9, True,
"test get_eset() without min_wt")
eset = enquire.get_eset(100, rset, xapian.Enquire.USE_EXACT_TERMFREQ, 1.0,
None, 1.9)
expect(eset.items[-1][xapian.ESET_WT] >= 1.9, True,
"test get_eset() min_wt")
# Check QueryParser parsing error.
qp = xapian.QueryParser()
expect_exception(xapian.QueryParserError,
"Syntax: <expression> AND <expression>", qp.parse_query,
"test AND")
# Check QueryParser pure NOT option
qp = xapian.QueryParser()
expect_query(
qp.parse_query("NOT test", qp.FLAG_BOOLEAN + qp.FLAG_PURE_NOT),
"(<alldocuments> AND_NOT test:(pos=1))")
# Check QueryParser partial option
qp = xapian.QueryParser()
qp.set_database(db)
qp.set_default_op(xapian.Query.OP_AND)
qp.set_stemming_strategy(qp.STEM_SOME)
qp.set_stemmer(xapian.Stem('en'))
expect_query(
qp.parse_query("foo o", qp.FLAG_PARTIAL),
"(Zfoo:(pos=1) AND ((out:(pos=2) SYNONYM outsid:(pos=2)) OR Zo:(pos=2)))"
)
expect_query(qp.parse_query("foo outside", qp.FLAG_PARTIAL),
"(Zfoo:(pos=1) AND Zoutsid:(pos=2))")
# Test supplying unicode strings
expect_query(xapian.Query(xapian.Query.OP_OR, (u'foo', u'bar')),
'(foo OR bar)')
expect_query(xapian.Query(xapian.Query.OP_OR, ('foo', u'bar\xa3')),
'(foo OR bar\xc2\xa3)')
expect_query(xapian.Query(xapian.Query.OP_OR, ('foo', 'bar\xc2\xa3')),
'(foo OR bar\xc2\xa3)')
expect_query(xapian.Query(xapian.Query.OP_OR, u'foo', u'bar'),
'(foo OR bar)')
expect_query(
qp.parse_query(u"NOT t\xe9st", qp.FLAG_BOOLEAN + qp.FLAG_PURE_NOT),
"(<alldocuments> AND_NOT Zt\xc3\xa9st:(pos=1))")
doc = xapian.Document()
doc.set_data(u"Unicode with an acc\xe9nt")
doc.add_posting(stem(u"out\xe9r"), 1)
expect(doc.get_data(), u"Unicode with an acc\xe9nt".encode('utf-8'))
term = doc.termlist().next().term
expect(term, u"out\xe9r".encode('utf-8'))
# Check simple stopper
stop = xapian.SimpleStopper()
qp.set_stopper(stop)
expect(stop('a'), False)
expect_query(qp.parse_query(u"foo bar a", qp.FLAG_BOOLEAN),
"(Zfoo:(pos=1) AND Zbar:(pos=2) AND Za:(pos=3))")
stop.add('a')
expect(stop('a'), True)
expect_query(qp.parse_query(u"foo bar a", qp.FLAG_BOOLEAN),
"(Zfoo:(pos=1) AND Zbar:(pos=2))")
# Feature test for custom Stopper
class my_b_stopper(xapian.Stopper):
def __call__(self, term):
return term == "b"
def get_description(self):
return u"my_b_stopper"
stop = my_b_stopper()
expect(stop.get_description(), u"my_b_stopper")
qp.set_stopper(stop)
expect(stop('a'), False)
expect_query(qp.parse_query(u"foo bar a", qp.FLAG_BOOLEAN),
"(Zfoo:(pos=1) AND Zbar:(pos=2) AND Za:(pos=3))")
expect(stop('b'), True)
expect_query(qp.parse_query(u"foo bar b", qp.FLAG_BOOLEAN),
"(Zfoo:(pos=1) AND Zbar:(pos=2))")
# Test TermGenerator
termgen = xapian.TermGenerator()
doc = xapian.Document()
termgen.set_document(doc)
termgen.index_text('foo bar baz foo')
expect([(item.term, item.wdf, [pos for pos in item.positer])
for item in doc.termlist()], [('bar', 1, [2]), ('baz', 1, [3]),
('foo', 2, [1, 4])])
# Check DateValueRangeProcessor works
context("checking that DateValueRangeProcessor works")
qp = xapian.QueryParser()
vrpdate = xapian.DateValueRangeProcessor(1, 1, 1960)
qp.add_valuerangeprocessor(vrpdate)
query = qp.parse_query('12/03/99..12/04/01')
expect(str(query), 'Xapian::Query(VALUE_RANGE 1 19991203 20011204)')
# Regression test for bug#193, fixed in 1.0.3.
context("running regression test for bug#193")
vrp = xapian.NumberValueRangeProcessor(0, '$', True)
a = '$10'
b = '20'
slot, a, b = vrp(a, b)
expect(slot, 0)
expect(xapian.sortable_unserialise(a), 10)
expect(xapian.sortable_unserialise(b), 20)
# Regression tests copied from PHP (probably always worked in python, but
# let's check...)
context("running regression tests for issues which were found in PHP")
# PHP overload resolution involving boolean types failed.
enq.set_sort_by_value(1, True)
# Regression test - fixed in 0.9.10.1.
oqparser = xapian.QueryParser()
oquery = oqparser.parse_query("I like tea")
# Regression test for bug#192 - fixed in 1.0.3.
enq.set_cutoff(100)
# Test setting and getting metadata
expect(db.get_metadata('Foo'), '')
db.set_metadata('Foo', 'Foo')
expect(db.get_metadata('Foo'), 'Foo')
expect_exception(xapian.InvalidArgumentError,
"Empty metadata keys are invalid", db.get_metadata, '')
expect_exception(xapian.InvalidArgumentError,
"Empty metadata keys are invalid", db.set_metadata, '',
'Foo')
expect_exception(xapian.InvalidArgumentError,
"Empty metadata keys are invalid", db.get_metadata, '')
# Test OP_SCALE_WEIGHT and corresponding constructor
expect_query(
xapian.Query(xapian.Query.OP_SCALE_WEIGHT, xapian.Query('foo'), 5),
"5 * foo")
r"""_checkxapian.py: Check the version of xapian used.
Raises an ImportError on import if the version used is too old to be used at
all.
"""
__docformat__ = "restructuredtext en"
# The minimum version of xapian required to work at all.
min_xapian_version = (1, 0, 6)
# Dictionary of features we can't support do to them being missing from the
# available version of xapian.
missing_features = {}
import xapian
versions = xapian.major_version(), xapian.minor_version(), xapian.revision()
if versions < min_xapian_version:
raise ImportError(
"""
Xapian Python bindings installed, but need at least version %d.%d.%d - got %s
""".strip() %
tuple(list(min_xapian_version) + [xapian.version_string()]))
if not hasattr(xapian, 'TermCountMatchSpy'):
missing_features['tags'] = 1
if not hasattr(xapian, 'CategorySelectMatchSpy'):
missing_features['facets'] = 1
def test_all():
# Test the version number reporting functions give plausible results.
v = "%d.%d.%d" % (xapian.major_version(),
xapian.minor_version(),
xapian.revision())
v2 = xapian.version_string()
expect(v2, v, "Unexpected version output")
# A regexp check would be better, but seems to create a bogus "leak" of -1
# objects in Python 3.
expect(len(xapian.__version__.split('.')), 3, 'xapian.__version__ not X.Y.Z')
expect((xapian.__version__.split('.'))[0], '1', 'xapian.__version__ not "1.Y.Z"')
def access_cvar():
res = xapian.cvar
print "Unhandled constants: ", res
return res
# Check that SWIG isn't generating cvar (regression test for ticket#297).
expect_exception(AttributeError, "'module' object has no attribute 'cvar'",
access_cvar)
stem = xapian.Stem("english")
expect(str(stem), "Xapian::Stem(english)", "Unexpected str(stem)")
doc = xapian.Document()
doc.set_data("a\0b")
if doc.get_data() == "a":
raise TestFail("get_data+set_data truncates at a zero byte")
expect(doc.get_data(), "a\0b", "get_data+set_data doesn't transparently handle a zero byte")
doc.set_data("is there anybody out there?")
doc.add_term("XYzzy")
doc.add_posting(stem("is"), 1)
doc.add_posting(stem("there"), 2)
doc.add_posting(stem("anybody"), 3)
doc.add_posting(stem("out"), 4)
doc.add_posting(stem("there"), 5)
db = xapian.WritableDatabase('', xapian.DB_BACKEND_INMEMORY)
db.add_document(doc)
expect(db.get_doccount(), 1, "Unexpected db.get_doccount()")
terms = ["smoke", "test", "terms"]
expect_query(xapian.Query(xapian.Query.OP_OR, terms),
"(smoke OR test OR terms)")
query1 = xapian.Query(xapian.Query.OP_PHRASE, ("smoke", "test", "tuple"))
query2 = xapian.Query(xapian.Query.OP_XOR, (xapian.Query("smoke"), query1, "string"))
expect_query(query1, "(smoke PHRASE 3 test PHRASE 3 tuple)")
expect_query(query2, "(smoke XOR (smoke PHRASE 3 test PHRASE 3 tuple) XOR string)")
subqs = ["a", "b"]
expect_query(xapian.Query(xapian.Query.OP_OR, subqs), "(a OR b)")
expect_query(xapian.Query(xapian.Query.OP_VALUE_RANGE, 0, '1', '4'),
"VALUE_RANGE 0 1 4")
# Check database factory functions are wrapped as expected:
expect_exception(xapian.DatabaseNotFoundError, None,
xapian.Database, "nosuchdir/nosuchdb", xapian.DB_BACKEND_STUB)
expect_exception(xapian.DatabaseNotFoundError, None,
xapian.WritableDatabase, "nosuchdir/nosuchdb", xapian.DB_OPEN|xapian.DB_BACKEND_STUB)
expect_exception(xapian.NetworkError, None,
xapian.remote_open, "/bin/false", "")
expect_exception(xapian.NetworkError, None,
xapian.remote_open_writable, "/bin/false", "")
expect_exception(xapian.NetworkError, None,
xapian.remote_open, "127.0.0.1", 0, 1)
expect_exception(xapian.NetworkError, None,
xapian.remote_open_writable, "127.0.0.1", 0, 1)
# Check wrapping of MatchAll and MatchNothing:
expect_query(xapian.Query.MatchAll, "<alldocuments>")
expect_query(xapian.Query.MatchNothing, "")
# Feature test for Query.__iter__
term_count = 0
for term in query2:
term_count += 1
expect(term_count, 4, "Unexpected number of terms in query2")
enq = xapian.Enquire(db)
# Check Xapian::BAD_VALUENO is wrapped suitably.
enq.set_collapse_key(xapian.BAD_VALUENO)
enq.set_query(xapian.Query(xapian.Query.OP_OR, "there", "is"))
mset = enq.get_mset(0, 10)
expect(mset.size(), 1, "Unexpected mset.size()")
expect(len(mset), 1, "Unexpected mset.size()")
# Feature test for Enquire.matching_terms(docid)
term_count = 0
for term in enq.matching_terms(mset.get_hit(0)):
term_count += 1
expect(term_count, 2, "Unexpected number of matching terms")
# Feature test for MSet.__iter__
msize = 0
for match in mset:
msize += 1
expect(msize, mset.size(), "Unexpected number of entries in mset")
terms = " ".join(enq.matching_terms(mset.get_hit(0)))
expect(terms, "is there", "Unexpected terms")
# Feature test for ESet.__iter__
rset = xapian.RSet()
rset.add_document(1)
eset = enq.get_eset(10, rset)
term_count = 0
for term in eset:
term_count += 1
expect(term_count, 3, "Unexpected number of expand terms")
# Feature test for Database.__iter__
term_count = 0
for term in db:
term_count += 1
expect(term_count, 5, "Unexpected number of terms in db")
# Feature test for Database.allterms
term_count = 0
for term in db.allterms():
term_count += 1
expect(term_count, 5, "Unexpected number of terms in db.allterms")
# Feature test for Database.postlist
count = 0
for posting in db.postlist("there"):
count += 1
expect(count, 1, "Unexpected number of entries in db.postlist('there')")
# Feature test for Database.postlist with empty term (alldocspostlist)
count = 0
for posting in db.postlist(""):
count += 1
expect(count, 1, "Unexpected number of entries in db.postlist('')")
# Feature test for Database.termlist
count = 0
for term in db.termlist(1):
count += 1
expect(count, 5, "Unexpected number of entries in db.termlist(1)")
# Feature test for Database.positionlist
count = 0
for term in db.positionlist(1, "there"):
count += 1
expect(count, 2, "Unexpected number of entries in db.positionlist(1, 'there')")
# Feature test for Document.termlist
count = 0
for term in doc.termlist():
count += 1
expect(count, 5, "Unexpected number of entries in doc.termlist()")
# Feature test for TermIter.skip_to
term = doc.termlist()
term.skip_to('n')
while True:
try:
x = next(term)
except StopIteration:
break
if x.term < 'n':
raise TestFail("TermIter.skip_to didn't skip term '%s'" % x.term)
# Feature test for Document.values
count = 0
for term in doc.values():
count += 1
expect(count, 0, "Unexpected number of entries in doc.values")
# Check exception handling for Xapian::DocNotFoundError
expect_exception(xapian.DocNotFoundError, "Docid 3 not found", db.get_document, 3)
# Check value of OP_ELITE_SET
expect(xapian.Query.OP_ELITE_SET, 10, "Unexpected value for OP_ELITE_SET")
# Feature test for MatchDecider
doc = xapian.Document()
doc.set_data("Two")
doc.add_posting(stem("out"), 1)
doc.add_posting(stem("outside"), 1)
doc.add_posting(stem("source"), 2)
doc.add_value(0, "yes")
db.add_document(doc)
class testmatchdecider(xapian.MatchDecider):
def __call__(self, doc):
return doc.get_value(0) == "yes"
query = xapian.Query(stem("out"))
enquire = xapian.Enquire(db)
enquire.set_query(query)
mset = enquire.get_mset(0, 10, None, testmatchdecider())
expect(mset.size(), 1, "Unexpected number of documents returned by match decider")
expect(mset.get_docid(0), 2, "MatchDecider mset has wrong docid in")
# Feature test for ExpandDecider
class testexpanddecider(xapian.ExpandDecider):
def __call__(self, term):
return (not term.startswith('a'))
enquire = xapian.Enquire(db)
rset = xapian.RSet()
rset.add_document(1)
eset = enquire.get_eset(10, rset, xapian.Enquire.USE_EXACT_TERMFREQ, testexpanddecider())
eset_terms = [item.term for item in eset]
expect(len(eset_terms), eset.size(), "Unexpected number of terms returned by expand")
if [t for t in eset_terms if t.startswith('a')]:
raise TestFail("ExpandDecider was not used")
# Check min_wt argument to get_eset() works (new in 1.2.5).
eset = enquire.get_eset(100, rset, xapian.Enquire.USE_EXACT_TERMFREQ)
expect([i.weight for i in eset][-1] < 1.9, True, "test get_eset() without min_wt")
eset = enquire.get_eset(100, rset, xapian.Enquire.USE_EXACT_TERMFREQ, None, 1.9)
expect([i.weight for i in eset][-1] >= 1.9, True, "test get_eset() min_wt")
# Check QueryParser parsing error.
qp = xapian.QueryParser()
expect_exception(xapian.QueryParserError, "Syntax: <expression> AND <expression>", qp.parse_query, "test AND")
# Check QueryParser pure NOT option
qp = xapian.QueryParser()
expect_query(qp.parse_query("NOT test", qp.FLAG_BOOLEAN + qp.FLAG_PURE_NOT),
"(0 * <alldocuments> AND_NOT test@1)")
# Check QueryParser partial option
qp = xapian.QueryParser()
qp.set_database(db)
qp.set_default_op(xapian.Query.OP_AND)
qp.set_stemming_strategy(qp.STEM_SOME)
qp.set_stemmer(xapian.Stem('en'))
expect_query(qp.parse_query("foo ox", qp.FLAG_PARTIAL),
"(Zfoo@1 AND (WILDCARD SYNONYM ox OR Zox@2))")
expect_query(qp.parse_query("foo outside", qp.FLAG_PARTIAL),
"(Zfoo@1 AND (WILDCARD SYNONYM outside OR Zoutsid@2))")
# Test supplying unicode strings
expect_query(xapian.Query(xapian.Query.OP_OR, (u'foo', u'bar')),
'(foo OR bar)')
expect_query(xapian.Query(xapian.Query.OP_OR, ('foo', u'bar\xa3')),
'(foo OR bar\xc2\xa3)')
expect_query(xapian.Query(xapian.Query.OP_OR, ('foo', 'bar\xc2\xa3')),
'(foo OR bar\xc2\xa3)')
expect_query(xapian.Query(xapian.Query.OP_OR, u'foo', u'bar'),
'(foo OR bar)')
expect_query(qp.parse_query(u"NOT t\xe9st", qp.FLAG_BOOLEAN + qp.FLAG_PURE_NOT),
"(0 * <alldocuments> AND_NOT Zt\xc3\xa9st@1)")
doc = xapian.Document()
doc.set_data(u"Unicode with an acc\xe9nt")
doc.add_posting(stem(u"out\xe9r"), 1)
expect(doc.get_data(), u"Unicode with an acc\xe9nt".encode('utf-8'))
term = doc.termlist().next().term
expect(term, u"out\xe9r".encode('utf-8'))
# Check simple stopper
stop = xapian.SimpleStopper()
qp.set_stopper(stop)
expect(stop('a'), False)
expect_query(qp.parse_query(u"foo bar a", qp.FLAG_BOOLEAN),
"(Zfoo@1 AND Zbar@2 AND Za@3)")
stop.add('a')
expect(stop('a'), True)
expect_query(qp.parse_query(u"foo bar a", qp.FLAG_BOOLEAN),
"(Zfoo@1 AND Zbar@2)")
# Feature test for custom Stopper
class my_b_stopper(xapian.Stopper):
def __call__(self, term):
return term == "b"
def get_description(self):
return u"my_b_stopper"
stop = my_b_stopper()
expect(stop.get_description(), u"my_b_stopper")
qp.set_stopper(stop)
expect(stop('a'), False)
expect_query(qp.parse_query(u"foo bar a", qp.FLAG_BOOLEAN),
"(Zfoo@1 AND Zbar@2 AND Za@3)")
expect(stop('b'), True)
expect_query(qp.parse_query(u"foo bar b", qp.FLAG_BOOLEAN),
"(Zfoo@1 AND Zbar@2)")
# Test SimpleStopper initialised from a file.
try:
srcdir = os.environ['srcdir']
except KeyError:
srcdir = '.'
stop = xapian.SimpleStopper(srcdir + '/../shortstop.list')
expect(stop('a'), True)
expect(stop('am'), False)
expect(stop('an'), True)
expect(stop('the'), True)
expect_exception(xapian.InvalidArgumentError, None, xapian.SimpleStopper, 'nosuchfile')
# Test TermGenerator
termgen = xapian.TermGenerator()
doc = xapian.Document()
termgen.set_document(doc)
termgen.index_text('foo bar baz foo')
expect([(item.term, item.wdf, [pos for pos in item.positer]) for item in doc.termlist()], [('bar', 1, [2]), ('baz', 1, [3]), ('foo', 2, [1, 4])])
# Check DateRangeProcessor works
context("checking that DateRangeProcessor works")
qp = xapian.QueryParser()
rpdate = xapian.DateRangeProcessor(1, xapian.RP_DATE_PREFER_MDY, 1960)
qp.add_rangeprocessor(rpdate)
query = qp.parse_query('12/03/99..12/04/01')
expect(str(query), 'Query(VALUE_RANGE 1 19991203 20011204)')
# Feature test for xapian.FieldProcessor
context("running feature test for xapian.FieldProcessor")
class testfieldprocessor(xapian.FieldProcessor):
def __call__(self, s):
if s == 'spam':
raise Exception('already spam')
return xapian.Query("spam")
qp.add_prefix('spam', testfieldprocessor())
qp.add_boolean_prefix('boolspam', testfieldprocessor())
qp.add_boolean_prefix('boolspam2', testfieldprocessor(), False) # Old-style
qp.add_boolean_prefix('boolspam3', testfieldprocessor(), '')
qp.add_boolean_prefix('boolspam4', testfieldprocessor(), 'group')
qp.add_boolean_prefix('boolspam5', testfieldprocessor(), None)
query = qp.parse_query('spam:ignored')
expect(str(query), 'Query(spam)')
expect_exception(Exception, 'already spam', qp.parse_query, 'spam:spam')
# Regression tests copied from PHP (probably always worked in python, but
# let's check...)
context("running regression tests for issues which were found in PHP")
# PHP overload resolution involving boolean types failed.
enq.set_sort_by_value(1, True)
# Regression test - fixed in 0.9.10.1.
oqparser = xapian.QueryParser()
oquery = oqparser.parse_query("I like tea")
# Regression test for bug fixed in 1.4.4:
# https://bugs.debian.org/849722
oqparser.add_boolean_prefix('tag', 'K', '')
# Make sure other cases also work:
oqparser.add_boolean_prefix('zag', 'XR', False) # Old-style
oqparser.add_boolean_prefix('rag', 'XR', None)
oqparser.add_boolean_prefix('nag', 'XB', '')
oqparser.add_boolean_prefix('bag', 'XB', 'blergh')
oqparser.add_boolean_prefix('gag', 'XB', u'blergh')
oqparser.add_boolean_prefix('jag', 'XB', b'blergh')
# Regression test for bug#192 - fixed in 1.0.3.
enq.set_cutoff(100)
# Test setting and getting metadata
expect(db.get_metadata('Foo'), '')
db.set_metadata('Foo', 'Foo')
expect(db.get_metadata('Foo'), 'Foo')
expect_exception(xapian.InvalidArgumentError, "Empty metadata keys are invalid", db.get_metadata, '')
expect_exception(xapian.InvalidArgumentError, "Empty metadata keys are invalid", db.set_metadata, '', 'Foo')
expect_exception(xapian.InvalidArgumentError, "Empty metadata keys are invalid", db.get_metadata, '')
# Test OP_SCALE_WEIGHT and corresponding constructor
expect_query(xapian.Query(xapian.Query.OP_SCALE_WEIGHT, xapian.Query('foo'), 5),
"5 * foo")
