Print detailed info in check_gn_headers.py

build/check_gn_headers_unittest.py

 #!/usr/bin/env python
 # Copyright 2017 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import logging
 import json
-import os
 import unittest
 import check_gn_headers
 
 
 ninja_input = r'''
 obj/a.o: #deps 1, deps mtime 123 (VALID)
     ../../a.cc
     ../../dir/path/b.h
     ../../c.hh
 
@@ skipping 39 matching lines @@
  dir/white-both.c  #more comment
 
 # empty line above
 a/b/c
 '''
 
 
 class CheckGnHeadersTest(unittest.TestCase):
   def testNinja(self):
     headers = check_gn_headers.ParseNinjaDepsOutput(
-        ninja_input.split('\n'), 'out/Release')
-    expected = set([
-        'dir/path/b.h',
-        'c.hh',
-        'dir3/path/b.h',
-        'c3.hh',
-    ])
+        ninja_input.split('\n'), 'out/Release', False)
+    expected = {
+        'dir/path/b.h': ['obj/a.o'],
+        'c.hh': ['obj/a.o'],
+        'dir3/path/b.h': ['obj/c.o'],
+        'c3.hh': ['obj/c.o'],
+    }
     self.assertEquals(headers, expected)
 
   def testGn(self):
     headers = check_gn_headers.ParseGNProjectJSON(gn_input,
                                                   'out/Release', 'tmp')
     expected = set([
         'base/a.h',
         'base/b.hh',
         'base/c.h',
         'base/p.h',
         'out/Release/gen/a.h',
     ])
     self.assertEquals(headers, expected)
 
   def testWhitelist(self):
     output = check_gn_headers.ParseWhiteList(whitelist)
     expected = set([
         'white-front.c',
         'a/b/c/white-end.c',
         'dir/white-both.c',
         'a/b/c',
     ])
     self.assertEquals(output, expected)
 
 
 if __name__ == '__main__':
   logging.getLogger().setLevel(logging.DEBUG)
   unittest.main(verbosity=2)