def _test_frame_read_format(self, format):
# test with specific format
try:
self.frame_read(format=format)
except ImportError as e:
self.skipTest(str(e))
else:
# test again with no format argument
# but we need to move other readers out of the way first
try:
read_ = get_reader('gwf', TimeSeries)
except Exception:
pass
else:
register_reader('gwf',
TimeSeries,
get_reader(format, TimeSeries),
force=True)
try:
self.frame_read()
finally:
register_reader('gwf', TimeSeries, read_, force=True)
# test empty Cache()
self.assertRaises(ValueError,
self.TEST_CLASS.read,
Cache(),
self.channel,
format=format)
# test cache method with `nproc=2`
c = Cache.from_urls([TEST_GWF_FILE])
ts = self.TEST_CLASS.read(c, self.channel, nproc=2, format=format)
def _test_read_cache(self, format, extension=None, exclude=['channel']):
if extension is None:
extension = format
# make array
a = self.create(name='test', t0=0, sample_rate=self.data.shape[0])
exta = '-%d-%d.%s' % (a.span[0], a.span[1], extension)
# write it to a file, so we can read it again later
with tempfile.NamedTemporaryFile(prefix='tmp-', suffix=exta,
delete=False) as f1:
a.write(f1.name)
# test reading it from the cache
cache = Cache.from_urls([f1.name])
b = self.TEST_CLASS.read(cache, a.name)
self.assertArraysEqual(a, b, exclude=exclude)
# write a cache file and read that
try:
with tempfile.NamedTemporaryFile(suffix='.lcf', delete=False) as f:
cache.tofile(f)
b = self.TEST_CLASS.read(f.name, a.name)
self.assertArraysEqual(a, b, exclude=exclude)
b = self.TEST_CLASS.read(open(f.name), a.name)
self.assertArraysEqual(a, b, exclude=exclude)
finally:
if os.path.isfile(f.name):
os.remove(f.name)
# create second array with a gap
b = self.create(name='test', t0=a.xspan[1]+1, dt=a.dt)
extb = '-%d-%d.%s' % (b.span[0], b.span[1], extension)
try:
with tempfile.NamedTemporaryFile(prefix='tmp-', suffix=extb,
delete=False) as f2:
# write tmp file
b.write(f2.name)
# make cache of file names
cache = Cache.from_urls([f1.name, f2.name], coltype=int)
# assert gap='raise' actually raises by default
self.assertRaises(ValueError, self.TEST_CLASS.read,
cache, a.name)
# read from cache
ts = self.TEST_CLASS.read(cache, a.name, gap='pad', pad=0)
nptest.assert_array_equal(
ts.value,
numpy.concatenate((a.value,
numpy.zeros(int(a.sample_rate.value)),
b.value)))
# read with multi-processing
ts2 = self.TEST_CLASS.read(cache, a.name, nproc=2,
gap='pad', pad=0)
self.assertArraysEqual(ts, ts2)
finally:
# clean up
for f in (f1, f2):
if os.path.exists(f.name):
os.remove(f.name)
def make_cache():
segs = SegmentList()
cache = Cache()
for seg in [(0, 1), (1, 2), (4, 5)]:
d = seg[1] - seg[0]
f = 'A-B-%d-%d.tmp' % (seg[0], d)
cache.append(CacheEntry.from_T050017(f))
segs.append(Segment(*seg))
return cache, segs
def make_cache():
segs = SegmentList()
cache = Cache()
for seg in [(0, 1), (1, 2), (4, 5)]:
d = seg[1] - seg[0]
f = 'A-B-%d-%d.tmp' % (seg[0], d)
cache.append(CacheEntry.from_T050017(f))
segs.append(Segment(*seg))
return cache, segs
def make_cache():
segs = SegmentList()
cache = Cache()
for seg in [(0, 1), (1, 2), (4, 5)]:
d = seg[1] - seg[0]
_, f = tempfile.mkstemp(prefix='A-',
suffix='-%d-%d.tmp' % (seg[0], d))
cache.append(CacheEntry.from_T050017(f))
segs.append(Segment(*seg))
return cache, segs
def make_cache():
segs = SegmentList()
cache = Cache()
for seg in [(0, 1), (1, 2), (4, 5)]:
d = seg[1] - seg[0]
_, f = tempfile.mkstemp(prefix='A-',
suffix='-%d-%d.tmp' % (seg[0], d))
cache.append(CacheEntry.from_T050017(f))
segs.append(Segment(*seg))
return cache, segs
def _test_frame_read_format(self, format):
# test with specific format
try:
self.frame_read(format=format)
except ImportError as e:
self.skipTest(str(e))
else:
# test again with no format argument
# but we need to move other readers out of the way first
try:
read_ = get_reader('gwf', TimeSeries)
except Exception:
pass
else:
register_reader('gwf', TimeSeries,
get_reader(format, TimeSeries),
force=True)
try:
self.frame_read()
finally:
register_reader('gwf', TimeSeries, read_, force=True)
# test empty Cache()
self.assertRaises(ValueError, self.TEST_CLASS.read, Cache(),
self.channel, format=format)
# test cache method with `nproc=2`
c = Cache.from_urls([TEST_GWF_FILE])
ts = self.TEST_CLASS.read(c, self.channel, nproc=2, format=format)
def test_frame_read_cache(self):
try:
a = self.TEST_CLASS.read(TEST_GWF_FILE, self.channel)
except Exception as e: # don't care why this fails for this test
self.skipTest(str(e))
c = Cache.from_urls([TEST_GWF_FILE])
with tempfile.NamedTemporaryFile(suffix='.lcf', delete=False) as f:
c.tofile(f)
f.delete = True
b = self.TEST_CLASS.read(f.name, self.channel)
self.assertArraysEqual(a, b)
b = self.TEST_CLASS.read(f, self.channel)
self.assertArraysEqual(a, b)
def test_frame_read_cache(self):
try:
a = self.TEST_CLASS.read(TEST_GWF_FILE, self.channel)
except Exception as e: # don't care why this fails for this test
self.skipTest(str(e))
c = Cache.from_urls([TEST_GWF_FILE])
with tempfile.NamedTemporaryFile(suffix='.lcf', delete=False) as f:
c.tofile(f)
f.delete = True
b = self.TEST_CLASS.read(f.name, self.channel)
self.assertArraysEqual(a, b)
b = self.TEST_CLASS.read(f, self.channel)
self.assertArraysEqual(a, b)
def test_io_identify(cls, extensions, modes=['read', 'write']):
for mode in modes:
for ext in extensions:
p = 'X-TEST_CACHE_ENTRY-0-1.%s' % ext
c = Cache([CacheEntry.from_T050017(p)])
for path in [p, [p], c[0], c]:
formats = identify_format(mode, cls, path, None, [], {})
if len(formats) == 0:
raise RuntimeError(
"No %s.%s method identified for "
"file-format %r in form %r" %
(cls.__name__, mode, ext, type(path).__name__))
elif len(formats) != 1:
raise RuntimeError(
"Multiple %s.%s methods identified for "
"file-format %r in form %r" %
(cls.__name__, mode, ext, type(path).__name__))