def test_python_change_regenerate_everything(self):
"""If a Python file changes, we should attempt to rebuild everything."""
# We don't want to mutate files in the source directory because we want
# to be able to build from a read-only filesystem. So, we install a
# dummy module and rewrite the metadata to say it comes from the source
# directory.
#
# Hacking imp to accept a MockedFile doesn't appear possible. So for
# the first iteration we read from a temp file. The second iteration
# doesn't need to import, so we are fine with a mocked file.
fake_path = mozpath.join(OUR_DIR, 'fakemodule.py')
with NamedTemporaryFile('wt') as fh:
fh.write('# Original content')
fh.flush()
mod = imp.load_source('mozwebidlcodegen.fakemodule', fh.name)
mod.__file__ = fake_path
args = self._get_manager_args()
m1 = WebIDLCodegenManager(**args)
with MockedOpen({fake_path: '# Original content'}):
try:
result = m1.generate_build_files()
l = len(result.inputs)
with open(fake_path, 'wt') as fh:
fh.write('# Modified content')
m2 = WebIDLCodegenManager(**args)
result = m2.generate_build_files()
self.assertEqual(len(result.inputs), l)
result = m2.generate_build_files()
self.assertEqual(len(result.inputs), 0)
finally:
del sys.modules['mozwebidlcodegen.fakemodule']
def test_unknown_state_version(self):
"""Loading a state file with a too new version resets state."""
args = self._get_manager_args()
p = args['state_path']
with open(p, 'wb') as fh:
json.dump({
'version': WebIDLCodegenManagerState.VERSION + 1,
'foobar': '1',
}, fh)
manager = WebIDLCodegenManager(**args)
self.assertEqual(manager._state['version'],
WebIDLCodegenManagerState.VERSION)
self.assertNotIn('foobar', manager._state)
def test_unknown_state_version(self):
"""Loading a state file with a too new version resets state."""
args = self._get_manager_args()
p = args["state_path"]
with io.open(p, "w", newline="\n") as fh:
json.dump(
{
"version": WebIDLCodegenManagerState.VERSION + 1,
"foobar": "1",
},
fh,
)
manager = WebIDLCodegenManager(**args)
self.assertEqual(manager._state["version"],
WebIDLCodegenManagerState.VERSION)
self.assertNotIn("foobar", manager._state)
def _get_manager(self):
return WebIDLCodegenManager(**self._get_manager_args())
