def prepare(self, item: Item) -> None:
"""Setup objects along the collector chain to the item."""
# If a collector fails its setup, fail its entire subtree of items.
# The setup is not retried for each item - the same exception is used.
for col, (finalizers, prepare_exc) in self.stack.items():
if prepare_exc:
raise prepare_exc
needed_collectors = item.listchain()
for col in needed_collectors[len(self.stack):]:
assert col not in self.stack
self.stack[col] = ([col.teardown], None)
try:
col.setup()
except TEST_OUTCOME as e:
self.stack[col] = (self.stack[col][0], e)
raise e
def prepare(self, item: Item) -> None:
"""Setup objects along the collector chain to the item."""
# If a collector fails its setup, fail its entire subtree of items.
# The setup is not retried for each item - the same exception is used.
for col in self.stack:
prepare_exc = col._store.get(self._prepare_exc_key, None)
if prepare_exc:
raise prepare_exc
needed_collectors = item.listchain()
for col in needed_collectors[len(self.stack) :]:
assert col not in self.stack
self.stack[col] = [col.teardown]
try:
col.setup()
except TEST_OUTCOME as e:
col._store[self._prepare_exc_key] = e
raise e
def setup(self, item: Item) -> None:
"""Setup objects along the collector chain to the item."""
needed_collectors = item.listchain()
# If a collector fails its setup, fail its entire subtree of items.
# The setup is not retried for each item - the same exception is used.
for col, (finalizers, exc) in self.stack.items():
assert col in needed_collectors, "previous item was not torn down properly"
if exc:
raise exc
for col in needed_collectors[len(self.stack):]:
assert col not in self.stack
# Push onto the stack.
self.stack[col] = ([col.teardown], None)
try:
col.setup()
except TEST_OUTCOME as exc:
self.stack[col] = (self.stack[col][0], exc)
raise exc
