def setup_layer(options, layer, setup_layers):
assert layer is not object
output = options.output
if layer not in setup_layers:
for base in layer.__bases__:
if base is not object:
setup_layer(options, base, setup_layers)
output.start_set_up(name_from_layer(layer))
t = time.time()
if hasattr(layer, 'setUp'):
try:
layer.setUp()
except Exception:
if options.post_mortem:
if options.resume_layer:
options.output.error_with_banner(
cant_pm_in_subprocess_message
% options.resume_layer)
raise
else:
zope.testing.testrunner.debug.post_mortem(
sys.exc_info())
else:
raise
output.stop_set_up(time.time() - t)
setup_layers[layer] = 1
def order_by_bases(layers):
"""Order the layers from least to most specific (bottom to top)
"""
named_layers = [(name_from_layer(layer), layer) for layer in layers]
named_layers.sort()
named_layers.reverse()
gathered = []
for name, layer in named_layers:
gather_layers(layer, gathered)
gathered.reverse()
seen = {}
result = []
for layer in gathered:
if layer not in seen:
seen[layer] = 1
if layer in layers:
result.append(layer)
return result
def tear_down_unneeded(options, needed, setup_layers, optional=False):
# Tear down any layers not needed for these tests. The unneeded layers
# might interfere.
unneeded = [l for l in setup_layers if l not in needed]
unneeded = order_by_bases(unneeded)
unneeded.reverse()
output = options.output
for l in unneeded:
output.start_tear_down(name_from_layer(l))
t = time.time()
try:
if hasattr(l, 'tearDown'):
l.tearDown()
except NotImplementedError:
output.tear_down_not_supported()
if not optional:
raise CanNotTearDown(l)
else:
output.stop_tear_down(time.time() - t)
del setup_layers[l]
def tear_down_unneeded(options, needed, setup_layers, optional=False):
# Tear down any layers not needed for these tests. The unneeded layers
# might interfere.
unneeded = [l for l in setup_layers if l not in needed]
unneeded = order_by_bases(unneeded)
unneeded.reverse()
output = options.output
for l in unneeded:
output.start_tear_down(name_from_layer(l))
t = time.time()
try:
try:
if hasattr(l, 'tearDown'):
l.tearDown()
except NotImplementedError:
output.tear_down_not_supported()
if not optional:
raise CanNotTearDown(l)
else:
output.stop_tear_down(time.time() - t)
finally:
del setup_layers[l]
