def test_getting_system_details(self):
sys.maxunicode = 65535
path = os.path.join(os.path.dirname(__file__), "fake-extensions")
sys.path.append(path)
try:
details = util.get_system_details(True)
finally:
sys.path.remove(path)
self.assertTrue(details['backends'])
self.assertEqual(details["unicode"], "UCS2")
sys.maxunicode = 1114111
details = util.get_system_details(False)
self.assertFalse(details['backends'])
self.assertEqual(details["unicode"], "UCS4")
def test_getting_system_details(self):
sys.maxunicode = 65535
path = os.path.join(os.path.dirname(__file__), "fake-extensions")
sys.path.append(path)
try:
details = util.get_system_details(True)
finally:
sys.path.remove(path)
assert details["backends"]
assert details["unicode"] == "UCS2"
sys.maxunicode = 1114111
details = util.get_system_details(False)
assert not details["backends"]
assert details["unicode"] == "UCS4"
def test_visa_info(self):
"""Test the visa info command line tool.
"""
result = run('pyvisa-info', stdout=PIPE, universal_newlines=True)
details = util.system_details_to_str(util.get_system_details())
self.assertMultiLineEqual(result.stdout.strip(), details.strip())
def test_visa_info(self):
"""Test the visa info command line tool."""
result = run("pyvisa-info", stdout=PIPE, universal_newlines=True)
details = util.system_details_to_str(util.get_system_details())
# Path difference can lead to subtle differences in the backends
# compare only the first lines.
assert (result.stdout.strip().split("\n")[:16] ==
details.strip().split("\n")[:16])
def test_get_debug_info(self):
details = util.system_details_to_str(util.get_system_details())
self.assertSequenceEqual(util.get_debug_info(False), details)
temp_stdout = StringIO()
with contextlib.redirect_stdout(temp_stdout):
util.get_debug_info()
output = temp_stdout.getvalue()
self.assertSequenceEqual(output.strip(), details.strip())
def test_get_debug_info(self):
details = util.system_details_to_str(util.get_system_details())
assert util.get_debug_info(False) == details
temp_stdout = StringIO()
with contextlib.redirect_stdout(temp_stdout):
util.get_debug_info()
output = temp_stdout.getvalue()
assert output.strip() == details.strip()
def test_system_details_for_plugins(self):
"""Test reporting on plugins.
"""
def dummy_list_backends():
return ["test1", "test2", "test3", "test4"]
def dummy_get_wrapper_class(backend):
if backend == "test1":
return IVIVisaLibrary
elif backend == "test2":
class BrokenBackend:
@classmethod
def get_debug_info(cls):
raise Exception()
return BrokenBackend
elif backend == "test4":
class WeirdBackend:
@classmethod
def get_debug_info(cls):
return {"": {"": [object()]}}
return WeirdBackend
else:
raise Exception()
old_lb = highlevel.list_backends
old_gwc = highlevel.get_wrapper_class
highlevel.list_backends = dummy_list_backends
highlevel.get_wrapper_class = dummy_get_wrapper_class
try:
details = util.get_system_details()
finally:
highlevel.list_backends = old_lb
highlevel.get_wrapper_class = old_gwc
self.assertIn("Could not instantiate", details["backends"]["test3"][0])
self.assertIn("Could not obtain", details["backends"]["test2"][0])
self.assertIn("Version", details["backends"]["test1"])
self.assertIn("", details["backends"]["test4"])
# Test converting the details to string
util.system_details_to_str(details)
def test_visa_main(self):
"""Test the visa scripts.
The script is deprecated and will be removed, when it does this
should be removed too.
"""
result = run(["python", "-m", "visa", "info"],
stdout=PIPE,
universal_newlines=True)
details = util.system_details_to_str(util.get_system_details())
self.assertSequenceEqual(result.stdout.strip(), details.strip())
with Popen(["python", "-m", "visa", "shell"], stdin=PIPE,
stdout=PIPE) as p:
stdout, _ = p.communicate(b'exit')
self.assertIn(b"Welcome to the VISA shell", stdout)
def test_visa_main(self):
"""Test the visa scripts.
The script is deprecated and will be removed, when it does this
should be removed too.
"""
result = run(["python", "-m", "visa", "info"],
stdout=PIPE,
universal_newlines=True)
details = util.system_details_to_str(util.get_system_details())
print(result.stdout.strip())
print()
print(details.strip())
# Path difference can lead to subtle differences in the backends
# compare only the first lines.
assert (result.stdout.strip().split("\n")[:16] ==
details.strip().split("\n")[:16])
with Popen(["python", "-m", "visa", "shell"], stdin=PIPE,
stdout=PIPE) as p:
stdout, _ = p.communicate(b"exit")
assert b"Welcome to the VISA shell" in stdout
def test_getting_system_details_with_backend(self):
"""Test getting the system details with the backend details.
"""
details = util.get_system_details(True)
self.assertTrue(details["backends"])
def test_visa_info(self):
"""Test the visa info command line tool."""
result = run("pyvisa-info", stdout=PIPE, universal_newlines=True)
details = util.system_details_to_str(util.get_system_details())
assert result.stdout.strip() == details.strip()
