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#!/usr/bin/env python3
# Copyright 2015 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import argparse
import os
import subprocess
import sys
script_dir = os.path.dirname(os.path.realpath(__file__))
tool_dir = os.path.abspath(os.path.join(script_dir, '../../pylib'))
sys.path.insert(0, tool_dir)
from clang import plugin_testing
class BlinkGcPluginTest(plugin_testing.ClangPluginTest):
"""Test harness for the Blink GC plugin."""
def __init__(self, *args, **kwargs):
super(BlinkGcPluginTest, self).__init__(*args, **kwargs)
def AdjustClangArguments(self, clang_cmd):
clang_cmd.append('-Wno-inaccessible-base')
def ProcessOneResult(self, test_name, actual):
# Some Blink GC plugins dump a JSON representation of the object graph, and
# use the processed results as the actual results of the test.
if os.path.exists('%s.graph.json' % test_name):
try:
actual = subprocess.check_output([
sys.executable, '../process-graph.py', '-c',
'%s.graph.json' % test_name
],
stderr=subprocess.STDOUT,
universal_newlines=True)
except subprocess.CalledProcessError as e:
# The graph processing script returns a failure exit code if the graph
# is bad (e.g. it has a cycle). The output still needs to be captured in
# that case, since the expected results capture the errors.
actual = e.output
finally:
# Clean up the .graph.json file to prevent false passes from stale
# results from a previous run.
os.remove('%s.graph.json' % test_name)
return super(BlinkGcPluginTest, self).ProcessOneResult(test_name, actual)
def main():
parser = argparse.ArgumentParser()
parser.add_argument(
'--reset-results',
action='store_true',
help='If specified, overwrites the expected results in place.')
parser.add_argument('clang_path', help='The path to the clang binary.')
parser.add_argument('--quiet',
action='store_true',
help='If specified, suppresses printing the expected '
'and actual output and only prints the diff.')
parser.add_argument('--filter',
action='store',
help='Filter to test files that match a regex')
args = parser.parse_args()
dir_name = os.path.dirname(os.path.realpath(__file__))
return BlinkGcPluginTest(dir_name,
args.clang_path, ['blink-gc-plugin'],
args.reset_results,
args.quiet,
filename_regex=args.filter).Run()
if __name__ == '__main__':
sys.exit(main())
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