Implement ability to specify temporarily-allowed dependencies in DEPS

tools/checkdeps/checkdeps_test.py

Index: tools/checkdeps/checkdeps_test.py
diff --git a/tools/checkdeps/checkdeps_test.py b/tools/checkdeps/checkdeps_test.py
new file mode 100755
index 0000000000000000000000000000000000000000..7fda5f9a69f8e7192be22b3fc40af6a4a030661e
--- /dev/null
+++ b/tools/checkdeps/checkdeps_test.py
@@ -0,0 +1,94 @@
+#!/usr/bin/env python
+# Copyright (c) 2012 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 checkdeps.
+"""
+
+import os
+import unittest
+
+
+import checkdeps
+
+
+class CheckDepsTest(unittest.TestCase):
+
+  def setUp(self):
+    self.deps_checker = checkdeps.DepsChecker(being_tested=True)
+
+  def testRegularCheckDepsRun(self):
+    problems = self.deps_checker.CheckDirectory(
+        os.path.join(self.deps_checker.base_directory,
+                     'tools/checkdeps/testdata'))
+    self.failUnlessEqual(3, len(problems))
+
+    problem = problems[0]
+    index = problem.find('testdata/allowed/test.h')
+    self.failUnless(index != -1)
+    index = problem.find('-tools/checkdeps/testdata/disallowed', index + 1)
+    self.failUnless(index != -1)
+    index = problem.find('-third_party/explicitly_disallowed', index + 1)
+    self.failUnless(index != -1)
+    index = problem.find('Because of no rule applying', index + 1)
+    self.failUnless(index != -1)
+
+    problem = problems[1]
+    index = problem.find('testdata/disallowed/test.h')
+    self.failUnless(index != -1)
+    index = problem.find('-third_party/explicitly_disallowed', index + 1)
+    self.failUnless(index != -1)
+    index = problem.find('Because of no rule applying', index + 1)
+    self.failUnless(index != -1)
+    index = problem.find('Because of no rule applying', index + 1)
+    self.failUnless(index != -1)
+
+    problem = problems[2]
+    index = problem.find('disallowed/allowed/test.h')
+    self.failUnless(index != -1)
+    index = problem.find('-third_party/explicitly_disallowed', index + 1)
+    self.failUnless(index != -1)
+    index = problem.find('Because of no rule applying', index + 1)
+    self.failUnless(index != -1)
+    index = problem.find('Because of no rule applying', index + 1)
+    self.failUnless(index != -1)
+
+  def testCheckAddedIncludesAllGood(self):
+    problems = self.deps_checker.CheckAddedCppIncludes(
+      [['tools/checkdeps/testdata/allowed/test.cc',
+        ['#include "tools/checkdeps/testdata/allowed/good.h"',
+         '#include "tools/checkdeps/testdata/disallowed/allowed/good.h"']
+      ]])
+    self.failIf(problems)
+
+  def testCheckAddedIncludesManyGarbageLines(self):
+    garbage_lines = ["My name is Sam%d\n" % num for num in range(50)]
+    problems = self.deps_checker.CheckAddedCppIncludes(
+      [['tools/checkdeps/testdata/allowed/test.cc', garbage_lines]])
+    self.failIf(problems)
+
+  def testCheckAddedIncludesNoRule(self):
+    problems = self.deps_checker.CheckAddedCppIncludes(
+      [['tools/checkdeps/testdata/allowed/test.cc',
+        ['#include "no_rule_for_this/nogood.h"']
+      ]])
+    self.failUnless(problems)
+
+  def testCheckAddedIncludesSkippedDirectory(self):
+    problems = self.deps_checker.CheckAddedCppIncludes(
+      [['tools/checkdeps/testdata/disallowed/allowed/skipped/test.cc',
+        ['#include "whatever/whocares.h"']
+      ]])
+    self.failIf(problems)
+
+  def testCheckAddedIncludesTempAllowed(self):
+    problems = self.deps_checker.CheckAddedCppIncludes(
+      [['tools/checkdeps/testdata/allowed/test.cc',
+        ['#include "tools/checkdeps/testdata/disallowed/temporarily_allowed.h"']
+      ]])
+    self.failUnless(problems)
+
+
+if __name__ == '__main__':
+  unittest.main()