def test_bad_magic(caplog):
"""Test that we get notified of bad magic bytes in stream."""
# Try reading a bad message
f = BytesIO(b'\x00\x01\x02\x03')
read_ncstream_messages(f)
assert 'Unknown magic' in caplog.text
def test_bad_magic():
'Test that we get notified of bad magic bytes in stream'
import logging
import sys
# Only StringIO's version supports writing str
if sys.version_info.major == 2:
from StringIO import StringIO
else:
from io import StringIO
# Set up capturing of logging
log = logging.getLogger('siphon.cdmr.ncstream')
err_out = StringIO()
log.addHandler(logging.StreamHandler(err_out))
# Try reading a bad message
f = BytesIO(b'\x00\x01\x02\x03')
read_ncstream_messages(f)
log.handlers.pop()
# Make sure we got some error output
err_out.seek(0)
assert 'Unknown magic' in err_out.read()
def test_bad_magic():
'Test that we get notified of bad magic bytes in stream'
import logging
import sys
# Only StringIO's version supports writing str
if sys.version_info.major == 2:
from StringIO import StringIO
else:
from io import StringIO
# Set up capturing of logging
log = logging.getLogger('siphon.cdmr.ncstream')
err_out = StringIO()
log.addHandler(logging.StreamHandler(err_out))
# Try reading a bad message
f = BytesIO(b'\x00\x01\x02\x03')
read_ncstream_messages(f)
log.handlers.pop()
# Make sure we got some error output
err_out.seek(0)
assert 'Unknown magic' in err_out.read()
def test_bad_magic(caplog):
"""Test that we get notified of bad magic bytes in stream."""
# Try reading a bad message
f = BytesIO(b'\x00\x01\x02\x03')
read_ncstream_messages(f)
assert 'Unknown magic' in caplog.text
def test_local_data():
"""Test reading ncstream messages directly from bytes in a file-like object."""
f = BytesIO(b'\xab\xec\xce\xba\x17\n\x0breftime_ISO\x10\x07\x1a\x04\n'
b'\x02\x10\x01(\x02\x01\x142014-10-28T21:00:00Z')
messages = read_ncstream_messages(f)
assert len(messages) == 1
assert messages[0][0] == '2014-10-28T21:00:00Z'
def test_local_data():
'Test reading ncstream messages directly from bytes in a file-like object'
f = BytesIO(b'\xab\xec\xce\xba\x17\n\x0breftime_ISO\x10\x07\x1a\x04\n'
b'\x02\x10\x01(\x02\x01\x142014-10-28T21:00:00Z')
messages = read_ncstream_messages(f)
assert len(messages) == 1
assert messages[0][0] == '2014-10-28T21:00:00Z'
def test_header_message_def():
'Test parsing of Header message'
f = get_header_remote()
messages = read_ncstream_messages(f)
assert len(messages) == 1
assert isinstance(messages[0], Header)
head = messages[0]
assert head.location == ('http://thredds-test.unidata.ucar.edu/thredds/cdmremote/grib/'
'NCEP/RAP/CONUS_13km/RR_CONUS_13km_20150519_0300.grib2')
assert head.title == ''
assert head.id == ''
assert head.version == 1
def test_header_message_def():
'Test parsing of Header message'
f = get_header_remote()
messages = read_ncstream_messages(f)
assert len(messages) == 1
assert isinstance(messages[0], Header)
head = messages[0]
assert head.location == ('http://thredds-test.unidata.ucar.edu/thredds/cdmremote/grib/'
'NCEP/RAP/CONUS_13km/RR_CONUS_13km_20150519_0300.grib2')
assert head.title == ''
assert head.id == ''
assert head.version == 1
def test_remote_header():
f = get_header_remote()
messages = read_ncstream_messages(f)
eq_(len(messages), 1)
assert isinstance(messages[0], Header)
head = messages[0]
# make sure fields in the message are set to non-default values
# when HasField returns True
for field in head.ListFields():
fname = field[0].name
if not fname == "root":
test = eval("head.{} == HEAD_{}_DEFAULT".format(fname, fname.upper()))
assert eval("[{}, not {}][head.HasField('{}')]".format(test, test, fname))
def test_header_message_def():
f = get_header_remote()
messages = read_ncstream_messages(f)
eq_(len(messages), 1)
assert isinstance(messages[0], Header)
head = messages[0]
# test that the header message definition has not changed!
test = head.location == HEAD_LOCATION_DEFAULT
assert [test, not test][head.HasField("location")]
test = head.title == HEAD_TITLE_DEFAULT
assert [test, not test][head.HasField("title")]
test = head.title == HEAD_ID_DEFAULT
assert [test, not test][head.HasField("id")]
test = head.title == HEAD_VERSION_DEFAULT
assert [test, not test][head.HasField("version")]
def test_header_message_def():
f = get_header_remote()
messages = read_ncstream_messages(f)
eq_(len(messages), 1)
assert isinstance(messages[0], Header)
head = messages[0]
# test that the header message definition has not changed!
test = head.location == HEAD_LOCATION_DEFAULT
assert [test, not test][head.HasField("location")]
test = head.title == HEAD_TITLE_DEFAULT
assert [test, not test][head.HasField("title")]
test = head.title == HEAD_ID_DEFAULT
assert [test, not test][head.HasField("id")]
test = head.title == HEAD_VERSION_DEFAULT
assert [test, not test][head.HasField("version")]
def test_remote_header():
f = get_header_remote()
messages = read_ncstream_messages(f)
eq_(len(messages), 1)
assert isinstance(messages[0], Header)
head = messages[0]
# make sure fields in the message are set to non-default values
# when HasField returns True
for field in head.ListFields():
fname = field[0].name
if not fname == "root":
test = eval("head.{} == HEAD_{}_DEFAULT".format(
fname, fname.upper()))
assert eval("[{}, not {}][head.HasField('{}')]".format(
test, test, fname))
def test_local_data():
f = BytesIO(b'\xab\xec\xce\xba\x17\n\x0breftime_ISO\x10\x07\x1a\x04\n'
b'\x02\x10\x01(\x02\x01\x142014-10-28T21:00:00Z')
messages = read_ncstream_messages(f)
eq_(len(messages), 1)
eq_(messages[0][0], b'2014-10-28T21:00:00Z')
def test_local_data():
f = BytesIO(b'\xab\xec\xce\xba\x17\n\x0breftime_ISO\x10\x07\x1a\x04\n'
b'\x02\x10\x01(\x02\x01\x142014-10-28T21:00:00Z')
messages = read_ncstream_messages(f)
eq_(len(messages), 1)
eq_(messages[0][0], b'2014-10-28T21:00:00Z')