blob: 0a969964b5d9e3b633b4198f681e79964146a3c1 [file] [log] [blame]
# Copyright 2014 Google Inc.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
Common code for tests.
import filecmp
import os
EXPECTATIONS_DIR = os.path.join(os.path.dirname(__file__), 'expectations')
def compare_to_expectation(actual_name, expectation_name, assert_true,
"""Check that a generated file matches its expectation in EXPECTATIONS_DIR.
Assert that the generated file and expectation file are identical.
actual_name: Full path to the test file.
expectation_name: Basename of the expectations file within which
to compare. The file is expected to be in
assert_true: function for asserting a statement is True
condition: statement to check for True.
msg: message to print if the files are not equal.
msg: Message to pass to assert_true.
full_expectations_path = os.path.join(EXPECTATIONS_DIR, expectation_name)
assert_true(filecmp.cmp(actual_name, full_expectations_path), msg)