[Android] Sets up a coverage system for java using EMMA

build/android/test_runner.py

Index: build/android/test_runner.py
diff --git a/build/android/test_runner.py b/build/android/test_runner.py
index f89fdb9263bc9008ac61a6e3325e765b8c90bfe5..aba1918907aa9ad74431cca4b176f43ed4b0a272 100755
--- a/build/android/test_runner.py
+++ b/build/android/test_runner.py
@@ -281,6 +281,12 @@ def AddInstrumentationTestOptions(option_parser):
       help=('The name of the apk containing the tests '
             '(without the .apk extension; e.g. "ContentShellTest"). '
             'Alternatively, this can be a full path to the apk.'))
+  option_parser.add_option('--coverage', action='store_true', default=False,
+                           help=('Run instrumentation tests with the EMMA '
+                                 'coverage tool.'))
+  option_parser.add_option('--coverage_dir', default=None,
+                           help=('Directory in which to place all generated '
+                                 'EMMA coverage files.'))

[frankf, 2013/07/25 18:53:44]

Just use coverage_dir to enable coverage

[gkanwar1, 2013/07/25 19:06:38]

Good point. Updated.

 
 
 def ProcessInstrumentationOptions(options, error_func):
@@ -305,6 +311,9 @@ def ProcessInstrumentationOptions(options, error_func):
         _SDK_OUT_DIR, options.build_type, constants.SDK_BUILD_TEST_JAVALIB_DIR,
         '%s.jar' %  options.test_apk)
 
+  if options.coverage and not options.coverage_dir:
+    error_func('--coverage_dir must be specified if running with coverage.')
+
 
 def AddUIAutomatorTestOptions(option_parser):
   """Adds UI Automator test options to |option_parser|."""
@@ -431,7 +440,7 @@ def _RunInstrumentationTests(options, error_func):
         options.test_data, options.install_apk, options.save_perf_json,
         options.screenshot_failures, options.tool, options.wait_for_debugger,
         options.disable_assertions, options.push_deps,
-        options.cleanup_test_files)
+        options.cleanup_test_files, options.coverage, options.coverage_dir)
 
     test_results, exit_code = test_dispatcher.RunTests(
         tests, runner_factory, options.wait_for_debugger,