def test_read_file(self):
curr_dir = os.getcwd()
try:
# On Windows current directory may be on a different drive than self.tempdir.
# However a relative path between two different drives is invalid. So we move to
# self.tempdir to ensure that we stay on the same drive.
os.chdir(self.tempdir)
# The read-only filesystem introduced with macOS Catalina can break
# code using relative paths below. See
# https://bugs.python.org/issue38295 for another example of this.
# Eliminating any possible symlinks in self.tempdir before passing
# it to os.path.relpath solves the problem. This is done by calling
# filesystem.realpath which removes any symlinks in the path on
# POSIX systems.
real_path = filesystem.realpath(os.path.join(self.tempdir, 'foo'))
relative_path = os.path.relpath(real_path)
self.assertRaises(argparse.ArgumentTypeError, cli.read_file,
relative_path)
test_contents = b'bar\n'
with open(relative_path, 'wb') as f:
f.write(test_contents)
path, contents = cli.read_file(relative_path)
self.assertEqual(path, os.path.abspath(path))
self.assertEqual(contents, test_contents)
finally:
os.chdir(curr_dir)
def test_read_file(self):
curr_dir = os.getcwd()
try:
# On Windows current directory may be on a different drive than self.tempdir.
# However a relative path between two different drives is invalid. So we move to
# self.tempdir to ensure that we stay on the same drive.
os.chdir(self.tempdir)
rel_test_path = os.path.relpath(os.path.join(self.tempdir, 'foo'))
self.assertRaises(argparse.ArgumentTypeError, cli.read_file,
rel_test_path)
test_contents = b'bar\n'
with open(rel_test_path, 'wb') as f:
f.write(test_contents)
path, contents = cli.read_file(rel_test_path)
self.assertEqual(path, os.path.abspath(path))
self.assertEqual(contents, test_contents)
finally:
os.chdir(curr_dir)
