Revert of Update MB to use `gn analyze`.

tools/mb/mb_unittest.py

Index: tools/mb/mb_unittest.py
diff --git a/tools/mb/mb_unittest.py b/tools/mb/mb_unittest.py
index 6870b24f862b5f9ad47d60b76a40486252f38da8..98a1b05919b1c1400c4956011402f8efb636f6b1 100755
--- a/tools/mb/mb_unittest.py
+++ b/tools/mb/mb_unittest.py
@@ -216,15 +216,6 @@
     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:
@@ -277,27 +268,76 @@
     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"],
-               "additional_compile_targets": ["all"]
-             }''',
-             '/tmp/out.json.gn': '''{\
-               "status": "Found dependency",
-               "compile_targets": ["//foo:foo_unittests"],
-               "test_targets": ["//foo:foo_unittests"]
-             }'''}
+               "test_targets": ["foo_unittests", "bar_unittests"],
+               "additional_compile_targets": []
+             }"""}
 
     mbw = self.fake_mbw(files)
-    mbw.Call = lambda cmd, env=None, buffer_output=True: (0, '', '')
+    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',
-      'compile_targets': ['foo:foo_unittests'],
+      'compile_targets': ['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):