Update MB to use `gn analyze`.

tools/mb/mb_unittest.py

 #!/usr/bin/python
 # Copyright 2015 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.
 
 """Tests for mb.py."""
 
 import json
 import StringIO
 import os
@@ skipping 198 matching lines @@
   },
 }
 """
 
 
 class UnitTest(unittest.TestCase):
   def fake_mbw(self, files=None, win32=False):
     mbw = FakeMBW(win32=win32)
     mbw.files.setdefault(mbw.default_config, TEST_CONFIG)
     mbw.files.setdefault(
+      mbw.ToAbsPath('//testing/buildbot/gn_isolate_map.pyl'),
+      '''{
+        "foo_unittests": {
+          "label": "//foo:foo_unittests",
+          "type": "console_test_launcher",
+          "args": [],
+        },
+      }''')
+    mbw.files.setdefault(
         mbw.ToAbsPath('//build/args/bots/fake_master/fake_gn_args_bot.gn'),
         'is_debug = false\n')
     if files:
       for path, contents in files.items():
         mbw.files[path] = contents
     return mbw
 
   def check(self, args, mbw=None, files=None, out=None, err=None, ret=None):
     if not mbw:
       mbw = self.fake_mbw(files)
@@ skipping 32 matching lines @@
 
     # Now we delete mb_type; this checks the case where the build dir
     # exists but wasn't populated by mb; this should also result in a clobber.
     del mbw.files['/fake_src/out/Debug/mb_type']
     self.check(['gen', '-c', 'gyp_debug', '//out/Debug'], mbw=mbw, ret=0)
     self.assertEqual(mbw.rmdirs,
                      ['/fake_src/out/Debug', '/fake_src/out/Debug'])
     self.assertEqual(mbw.files['/fake_src/out/Debug/mb_type'], 'gyp')
 
   def test_gn_analyze(self):
-    files = {'/tmp/in.json': """{\
+    files = {'/tmp/in.json': '''{\
                "files": ["foo/foo_unittest.cc"],
-               "test_targets": ["foo_unittests", "bar_unittests"],
-               "additional_compile_targets": []
-             }"""}
+               "test_targets": ["foo_unittests"],
+               "additional_compile_targets": ["all"]
+             }''',
+             '/tmp/out.json.gn': '''{\
+               "status": "Found dependency",
+               "compile_targets": ["//foo:foo_unittests"],
+               "test_targets": ["//foo:foo_unittests"]
+             }'''}
 
     mbw = self.fake_mbw(files)
-    mbw.Call = lambda cmd, env=None, buffer_output=True: (
-        0, 'out/Default/foo_unittests\n', '')
+    mbw.Call = lambda cmd, env=None, buffer_output=True: (0, '', '')
 
     self.check(['analyze', '-c', 'gn_debug_goma', '//out/Default',
                 '/tmp/in.json', '/tmp/out.json'], mbw=mbw, ret=0)
     out = json.loads(mbw.files['/tmp/out.json'])
     self.assertEqual(out, {
       'status': 'Found dependency',
-      'compile_targets': ['foo_unittests'],
+      'compile_targets': ['foo:foo_unittests'],
       'test_targets': ['foo_unittests']
     })
 
-  def test_gn_analyze_fails(self):
-    files = {'/tmp/in.json': """{\
-               "files": ["foo/foo_unittest.cc"],
-               "test_targets": ["foo_unittests", "bar_unittests"],
-               "additional_compile_targets": []
-             }"""}
-
-    mbw = self.fake_mbw(files)
-    mbw.Call = lambda cmd, env=None, buffer_output=True: (1, '', '')
-
-    self.check(['analyze', '-c', 'gn_debug_goma', '//out/Default',
-                '/tmp/in.json', '/tmp/out.json'], mbw=mbw, ret=1)
-
-  def test_gn_analyze_all(self):
-    files = {'/tmp/in.json': """{\
-               "files": ["foo/foo_unittest.cc"],
-               "test_targets": ["bar_unittests"],
-               "additional_compile_targets": ["all"]
-             }"""}
-    mbw = self.fake_mbw(files)
-    mbw.Call = lambda cmd, env=None, buffer_output=True: (
-        0, 'out/Default/foo_unittests\n', '')
-    self.check(['analyze', '-c', 'gn_debug_goma', '//out/Default',
-                '/tmp/in.json', '/tmp/out.json'], mbw=mbw, ret=0)
-    out = json.loads(mbw.files['/tmp/out.json'])
-    self.assertEqual(out, {
-      'status': 'Found dependency (all)',
-      'compile_targets': ['all', 'bar_unittests'],
-      'test_targets': ['bar_unittests'],
-    })
-
-  def test_gn_analyze_missing_file(self):
-    files = {'/tmp/in.json': """{\
-               "files": ["foo/foo_unittest.cc"],
-               "test_targets": ["bar_unittests"],
-               "additional_compile_targets": []
-             }"""}
-    mbw = self.fake_mbw(files)
-    mbw.cmds = [
-        (0, '', ''),
-        (1, 'The input matches no targets, configs, or files\n', ''),
-        (1, 'The input matches no targets, configs, or files\n', ''),
-    ]
-
-    self.check(['analyze', '-c', 'gn_debug_goma', '//out/Default',
-                '/tmp/in.json', '/tmp/out.json'], mbw=mbw, ret=0)
-    out = json.loads(mbw.files['/tmp/out.json'])
-    self.assertEqual(out, {
-      'status': 'No dependency',
-      'compile_targets': [],
-      'test_targets': [],
-    })
-
   def test_gn_gen(self):
     mbw = self.fake_mbw()
     self.check(['gen', '-c', 'gn_debug_goma', '//out/Default', '-g', '/goma'],
                mbw=mbw, ret=0)
     self.assertMultiLineEqual(mbw.files['/fake_src/out/Default/args.gn'],
                               ('goma_dir = "/goma"\n'
                                'is_debug = true\n'
                                'use_goma = true\n'))
 
     # Make sure we log both what is written to args.gn and the command line.
@@ skipping 214 matching lines @@
     self.check(['lookup', '-c', 'fake_config'], mbw=mbw,
                ret=0,
                out=("GYP_DEFINES='foo=bar baz=1'\n"
                     "GYP_LINK_CONCURRENCY=1\n"
                     "LLVM_FORCE_HEAD_REVISION=1\n"
                     "python build/gyp_chromium -G output_dir=_path_\n"))
 
 
 if __name__ == '__main__':
   unittest.main()