def test_file_limit(self):
"""
Check that we don't leave file handles unclosed.
"""
max_files = resource.getrlimit(resource.RLIMIT_NOFILE)[1] # hard limit
dest = BytesIO()
for _ in range(max_files):
with redirect_stream(sys.__stdout__, dest):
pass
def test_file_limit(self):
"""
Check that we don't leave file handles unclosed.
"""
max_files = resource.getrlimit(resource.RLIMIT_NOFILE)[1] # hard limit
dest = BytesIO()
for _ in range(max_files):
with redirect_stream(sys.__stdout__, dest):
pass
def check_for_valid_ephemeris(measures):
"""
Checks whether the ephemeris data in use by ``measures`` is valid.
``measures`` should already have a valid reference frame.
"""
# Note that we need to catch and parse the standard error produced by
# casacore: there doesn't seem to be any other way of figuring this out.
casacore_stderr = BytesIO()
with redirect_stream(sys.__stderr__, casacore_stderr):
# We assume the ephemeris is valid if it has position of the sun.
measures.separation(measures.direction("SUN"),
measures.direction("SUN"))
if "WARN" in casacore_stderr.getvalue():
# casacore sends a warning to stderr if the ephemeris is invalid
return False
else:
return True
def check_for_valid_ephemeris(measures):
"""
Checks whether the ephemeris data in use by ``measures`` is valid.
``measures`` should already have a valid reference frame.
"""
# Note that we need to catch and parse the standard error produced by
# casacore: there doesn't seem to be any other way of figuring this out.
casacore_stderr = BytesIO()
with redirect_stream(sys.__stderr__, casacore_stderr):
# We assume the ephemeris is valid if it has position of the sun.
measures.separation(
measures.direction("SUN"), measures.direction("SUN")
)
if "WARN" in casacore_stderr.getvalue():
# casacore sends a warning to stderr if the ephemeris is invalid
return False
else:
return True
