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Refactor insert_missing_modules function (#12210) 

Makes the logic more straightforward IMO.
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Bruno Oliveira 2024-04-20 08:58:14 -03:00 committed by GitHub
parent ff806b239e
commit 6fb474a3eb
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1 changed files with 22 additions and 25 deletions
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47
src/_pytest/pathlib.py
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@ -737,34 +737,31 @@ def insert_missing_modules(modules: Dict[str, ModuleType], module_name: str) ->
otherwise "src.tests.test_foo" is not importable by ``__import__``. otherwise "src.tests.test_foo" is not importable by ``__import__``.
""" """
module_parts = module_name.split(".") module_parts = module_name.split(".")
child_module: Union[ModuleType, None] = None
module: Union[ModuleType, None] = None
child_name: str = ""
while module_name: while module_name:
if module_name not in modules: parent_module_name, _, child_name = module_name.rpartition(".")
try: if parent_module_name:
# If sys.meta_path is empty, calling import_module will issue parent_module = modules.get(parent_module_name)
# a warning and raise ModuleNotFoundError. To avoid the if parent_module is None:
# warning, we check sys.meta_path explicitly and raise the error try:
# ourselves to fall back to creating a dummy module. # If sys.meta_path is empty, calling import_module will issue
if not sys.meta_path: # a warning and raise ModuleNotFoundError. To avoid the
raise ModuleNotFoundError # warning, we check sys.meta_path explicitly and raise the error
module = importlib.import_module(module_name) # ourselves to fall back to creating a dummy module.
except ModuleNotFoundError: if not sys.meta_path:
module = ModuleType( raise ModuleNotFoundError
module_name, parent_module = importlib.import_module(parent_module_name)
doc="Empty module created by pytest's importmode=importlib.", except ModuleNotFoundError:
) parent_module = ModuleType(
else: module_name,
module = modules[module_name] doc="Empty module created by pytest's importmode=importlib.",
if child_module: )
modules[parent_module_name] = parent_module
# Add child attribute to the parent that can reference the child # Add child attribute to the parent that can reference the child
# modules. # modules.
if not hasattr(module, child_name): if not hasattr(parent_module, child_name):
setattr(module, child_name, child_module) setattr(parent_module, child_name, modules[module_name])
modules[module_name] = module
# Keep track of the child module while moving up the tree.
child_module, child_name = module, module_name.rpartition(".")[-1]
module_parts.pop(-1) module_parts.pop(-1)
module_name = ".".join(module_parts) module_name = ".".join(module_parts)