[Predator] Add ``Project`` class and ``ClassifySuspect`` method to project and component classifier

appengine/findit/crash/test/project_test.py

+# 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 unittest
+
+from crash.project import Project
+from crash.stacktrace import StackFrame
+from libs.gitiles.change_log import FileChangeInfo
+from libs.gitiles.diff import ChangeType
+
+
+class ProjectTest(unittest.TestCase):
+  """Tests ``Project`` class."""
+
+  def setUp(self):
+    super(ProjectTest, self).setUp()
+    self.android_project = Project('android_os',
+                                   path_regexes=['.*googleplex-android/'],
+                                   function_regexes=['android.'])
+    self.chromium_project = Project('chromium',
+                                    function_regexes=['org.chromium'],
+                                    host_directories=['src/'])
+
+  def testMatchesStackFrame(self):
+    """Tests that ``MatchesStackFrame`` matches frames."""
+    chromium_frame = StackFrame(0, 'src/', 'func', 'f.cc', 'src/f.cc', [2])
+    self.assertTrue(self.chromium_project.MatchesStackFrame(chromium_frame))
+    self.assertFalse(self.android_project.MatchesStackFrame(chromium_frame))
+
+    android_frame1 = StackFrame(0, '', 'android.a', 'comp1.cc',
+                                'src/comp1.cc', [2])
+    self.assertFalse(self.chromium_project.MatchesStackFrame(android_frame1))
+    self.assertTrue(self.android_project.MatchesStackFrame(android_frame1))
+
+    android_frame2 = StackFrame(0, '', 'func', 'comp2.cc',
+                               'googleplex-android/src/comp2.cc', [32])
+    self.assertFalse(self.chromium_project.MatchesStackFrame(android_frame2))
+    self.assertTrue(self.android_project.MatchesStackFrame(android_frame2))
+
+  def testMatchesTouchedFile(self):
+    """Tests that ``MatchesTouchedFile`` matches touched files correctly."""
+    touched_file = FileChangeInfo(ChangeType.MODIFY, 'a/b.h', 'a/b.h')
+    self.assertFalse(self.chromium_project.MatchesTouchedFile(
+        'dummy', touched_file.changed_path))
+    self.assertTrue(self.chromium_project.MatchesTouchedFile(
+        'src/', touched_file.changed_path))
+
+    deleted_file = FileChangeInfo(ChangeType.DELETE, 'a/b.h', None)
+    self.assertTrue(self.chromium_project.MatchesTouchedFile(
+        'src/', deleted_file.changed_path))
+    self.assertFalse(self.android_project.MatchesTouchedFile(
+        'src/', deleted_file.changed_path))
+
+    add_file = FileChangeInfo(ChangeType.ADD, None, 'googleplex-android/b.java')
+    self.assertTrue(self.android_project.MatchesTouchedFile(
+        'android_path/', add_file.changed_path))
+
+  def testGetName(self):
+    """Tests ``GetName`` method return the project or subproject name."""
+    self.assertEquals(self.android_project.GetName(), self.android_project.name)
+    self.assertEquals(self.chromium_project.GetName(),
+                      self.chromium_project.name)
+    self.assertEquals(self.chromium_project.GetName('src/'), 'chromium')
+    self.assertEquals(self.chromium_project.GetName('src/dep'), 'chromium-dep')
+    self.assertEquals(self.chromium_project.GetName('dummy/dep'),
+                      'chromium-dummy_dep')