def test_iter(self):
obj = sql.Composed([sql.SQL("foo"), sql.SQL('bar')])
it = iter(obj)
i = next(it)
self.assertEqual(i, sql.SQL('foo'))
i = next(it)
self.assertEqual(i, sql.SQL('bar'))
self.assertRaises(StopIteration, next, it)
def test_sum_inplace(self):
obj = sql.Composed([sql.SQL("foo ")])
obj += sql.Literal("bar")
self.assert_(isinstance(obj, sql.Composed))
self.assertQuotedEqual(obj.as_string(self.conn), "foo 'bar'")
obj = sql.Composed([sql.SQL("foo ")])
obj += sql.Composed([sql.Literal("bar")])
self.assert_(isinstance(obj, sql.Composed))
self.assertQuotedEqual(obj.as_string(self.conn), "foo 'bar'")
def test_pos_spec(self):
s = sql.SQL("select {0} from {1}").format(sql.Identifier('field'),
sql.Identifier('table'))
s1 = s.as_string(self.conn)
self.assert_(isinstance(s1, six.string_types))
self.assertEqual(s1, 'select "field" from "table"')
s = sql.SQL("select {1} from {0}").format(sql.Identifier('table'),
sql.Identifier('field'))
s1 = s.as_string(self.conn)
self.assert_(isinstance(s1, six.string_types))
self.assertEqual(s1, 'select "field" from "table"')
def test_eq(self):
self.assert_(sql.Identifier('foo') == sql.Identifier('foo'))
self.assert_(
sql.Identifier('foo', 'bar') == sql.Identifier('foo', 'bar'))
self.assert_(sql.Identifier('foo') != sql.Identifier('bar'))
self.assert_(sql.Identifier('foo') != 'foo')
self.assert_(sql.Identifier('foo') != sql.SQL('foo'))
def test_execute(self):
cur = self.conn.cursor()
cur.execute("""
create table test_compose (
id serial primary key,
foo text, bar text, "ba'z" text)
""")
cur.execute(
sql.SQL("insert into {0} (id, {1}) values (%s, {2})").format(
sql.Identifier('test_compose'),
sql.SQL(', ').join(map(sql.Identifier,
['foo', 'bar', "ba'z"])),
(sql.Placeholder() * 3).join(', ')), (10, 'a', 'b', 'c'))
cur.execute("select * from test_compose")
self.assertEqual(cur.fetchall(), [(10, 'a', 'b', 'c')])
def test_must_be_adaptable(self):
class Foo(object):
pass
self.assertRaises(
psycopg2cffi.ProgrammingError,
sql.SQL("select {0};").format(sql.Literal(Foo())).as_string,
self.conn)
def test_join(self):
obj = sql.SQL(", ").join(
[sql.Identifier('foo'),
sql.SQL('bar'),
sql.Literal(42)])
self.assert_(isinstance(obj, sql.Composed))
self.assertEqual(obj.as_string(self.conn), '"foo", bar, 42')
obj = sql.SQL(", ").join(
sql.Composed(
[sql.Identifier('foo'),
sql.SQL('bar'),
sql.Literal(42)]))
self.assert_(isinstance(obj, sql.Composed))
self.assertEqual(obj.as_string(self.conn), '"foo", bar, 42')
obj = sql.SQL(", ").join([])
self.assertEqual(obj, sql.Composed([]))
def test_copy(self):
cur = self.conn.cursor()
cur.execute("""
create table test_compose (
id serial primary key,
foo text, bar text, "ba'z" text)
""")
s = six.StringIO("10\ta\tb\tc\n20\td\te\tf\n")
cur.copy_expert(
sql.SQL("copy {t} (id, foo, bar, {f}) from stdin").format(
t=sql.Identifier("test_compose"), f=sql.Identifier("ba'z")), s)
s1 = six.StringIO()
cur.copy_expert(
sql.SQL("copy (select {f} from {t} order by id) to stdout").format(
t=sql.Identifier("test_compose"), f=sql.Identifier("ba'z")),
s1)
s1.seek(0)
self.assertEqual(s1.read(), 'c\nf\n')
def test_seq(self):
l = [sql.SQL('foo'), sql.Literal('bar'), sql.Identifier('baz')]
self.assertEqual(sql.Composed(l).seq, l)
def test_compose_bad_args_type(self):
self.assertRaises(IndexError, sql.SQL("select {0};").format, a=10)
self.assertRaises(KeyError, sql.SQL("select {x};").format, 10)
def test_braces_escape(self):
s = sql.SQL("{{{0}}}").format(sql.Literal(7))
self.assertEqual(s.as_string(self.conn), "{7}")
s = sql.SQL("{{1,{0}}}").format(sql.Literal(7))
self.assertEqual(s.as_string(self.conn), "{1,7}")
def test_compose_empty(self):
s = sql.SQL("select foo;").format()
s1 = s.as_string(self.conn)
self.assertEqual(s1, "select foo;")
def test_unicode(self):
s = sql.SQL(u"select {0} from {1}").format(sql.Identifier(u'field'),
sql.Identifier('table'))
s1 = s.as_string(self.conn)
self.assert_(isinstance(s1, text_type))
self.assertEqual(s1, u'select "field" from "table"')
def test_init(self):
self.assert_(isinstance(sql.SQL('foo'), sql.SQL))
self.assert_(isinstance(sql.SQL(u'foo'), sql.SQL))
self.assertRaises(TypeError, sql.SQL, 10)
self.assertRaises(TypeError, sql.SQL, dt.date(2016, 12, 31))
def test_no_modifiers(self):
self.assertRaises(ValueError, sql.SQL("select {a!r};").format, a=10)
self.assertRaises(ValueError, sql.SQL("select {a:<};").format, a=10)
def test_must_be_composable(self):
self.assertRaises(TypeError, sql.SQL("select {0};").format, 'foo')
self.assertRaises(TypeError, sql.SQL("select {0};").format, 10)
def test_string(self):
self.assertEqual(sql.SQL('foo').string, 'foo')
def test_repr(self):
self.assertEqual(repr(sql.SQL("foo")), "SQL('foo')")
self.assertEqual(str(sql.SQL("foo")), "SQL('foo')")
self.assertEqual(sql.SQL("foo").as_string(self.conn), "foo")
def test_dict(self):
s = sql.SQL("select {f} from {t}").format(f=sql.Identifier('field'),
t=sql.Identifier('table'))
s1 = s.as_string(self.conn)
self.assert_(isinstance(s1, six.string_types))
self.assertEqual(s1, 'select "field" from "table"')
def test_eq(self):
self.assert_(sql.SQL('foo') == sql.SQL('foo'))
self.assert_(sql.SQL('foo') != sql.SQL('bar'))
self.assert_(sql.SQL('foo') != 'foo')
self.assert_(sql.SQL('foo') != sql.Literal('foo'))
def test_compose_literal(self):
s = sql.SQL("select {0};").format(sql.Literal(dt.date(2016, 12, 31)))
s1 = s.as_string(self.conn)
self.assertEqual(s1, "select '2016-12-31'::date;")
def test_sum_inplace(self):
obj = sql.SQL("foo")
obj += sql.SQL("bar")
self.assert_(isinstance(obj, sql.Composed))
self.assertEqual(obj.as_string(self.conn), "foobar")
def test_percent_escape(self):
s = sql.SQL("42 % {0}").format(sql.Literal(7))
s1 = s.as_string(self.conn)
self.assertEqual(s1, "42 % 7")
def test_multiply(self):
obj = sql.SQL("foo") * 3
self.assert_(isinstance(obj, sql.Composed))
self.assertEqual(obj.as_string(self.conn), "foofoofoo")
def test_compose_badnargs(self):
self.assertRaises(IndexError, sql.SQL("select {0};").format)
def test_compose_badnargs_auto(self):
self.assertRaises(IndexError, sql.SQL("select {};").format)
self.assertRaises(ValueError, sql.SQL("select {} {1};").format, 10, 20)
self.assertRaises(ValueError, sql.SQL("select {0} {};").format, 10, 20)
