def test_bug_write_read_float32_seed_win32(self):
"""
Test case for issue #64.
"""
# create stream object
data = np.array([
395.07809448, 395.0782, 1060.28112793, -1157.37487793,
-1236.56237793, 355.07028198, -1181.42175293
],
dtype=np.float32)
st = Stream([Trace(data=data)])
with NamedTemporaryFile() as tf:
tempfile = tf.name
_write_mseed(st, tempfile, format="MSEED")
# read temp file directly without libmseed
with open(tempfile, 'rb') as fp:
fp.seek(56)
dtype = np.dtype(native_str('>f4'))
bin_data = from_buffer(fp.read(7 * dtype.itemsize),
dtype=dtype)
np.testing.assert_array_equal(data, bin_data)
# read via ObsPy
st2 = _read_mseed(tempfile)
# test results
np.testing.assert_array_equal(data, st2[0].data)
def test_write_with_date_time_before_1970(self):
"""
Write an stream via libmseed with a datetime before 1970.
This test depends on the platform specific localtime()/gmtime()
function.
"""
# create trace
tr = Trace(data=np.empty(1000))
tr.stats.starttime = UTCDateTime("1969-01-01T00:00:00")
# write file
with NamedTemporaryFile() as tf:
tempfile = tf.name
_write_mseed(Stream([tr]), tempfile, format="MSEED")
# read again
stream = _read_mseed(tempfile)
stream.verify()
def test_one_sample_overlap(self):
"""
Both methods readMSTraces and readMSTracesViaRecords should recognize a
single sample overlap.
"""
# create a stream with one sample overlapping
trace1 = Trace(data=np.zeros(1000))
trace2 = Trace(data=np.zeros(10))
trace2.stats.starttime = UTCDateTime(999)
st = Stream([trace1, trace2])
# write into MSEED
with NamedTemporaryFile() as tf:
tempfile = tf.name
_write_mseed(st, tempfile, format="MSEED")
# read it again
new_stream = _read_mseed(tempfile)
self.assertEqual(len(new_stream), 2)
def test_write_with_date_time_before_1970(self):
"""
Write an stream via libmseed with a datetime before 1970.
This test depends on the platform specific localtime()/gmtime()
function.
"""
# create trace
tr = Trace(data=np.empty(1000))
tr.stats.starttime = UTCDateTime("1969-01-01T00:00:00")
# write file
with NamedTemporaryFile() as tf:
tempfile = tf.name
_write_mseed(Stream([tr]), tempfile, format="MSEED")
# read again
stream = _read_mseed(tempfile)
stream.verify()
def test_one_sample_overlap(self):
"""
Both methods readMSTraces and readMSTracesViaRecords should recognize a
single sample overlap.
"""
# create a stream with one sample overlapping
trace1 = Trace(data=np.zeros(1000))
trace2 = Trace(data=np.zeros(10))
trace2.stats.starttime = UTCDateTime(999)
st = Stream([trace1, trace2])
# write into MSEED
with NamedTemporaryFile() as tf:
tempfile = tf.name
_write_mseed(st, tempfile, format="MSEED")
# read it again
new_stream = _read_mseed(tempfile)
self.assertEqual(len(new_stream), 2)
def test_bug_write_read_float32_seed_win32(self):
"""
Test case for issue #64.
"""
# create stream object
data = np.array([395.07809448, 395.0782, 1060.28112793, -1157.37487793,
-1236.56237793, 355.07028198, -1181.42175293],
dtype=np.float32)
st = Stream([Trace(data=data)])
with NamedTemporaryFile() as tf:
tempfile = tf.name
_write_mseed(st, tempfile, format="MSEED")
# read temp file directly without libmseed
with open(tempfile, 'rb') as fp:
fp.seek(56)
dtype = np.dtype(native_str('>f4'))
bin_data = from_buffer(fp.read(7 * dtype.itemsize),
dtype=dtype)
np.testing.assert_array_equal(data, bin_data)
# read via ObsPy
st2 = _read_mseed(tempfile)
# test results
np.testing.assert_array_equal(data, st2[0].data)
