Refactor the way that TestApi works so that it is actually useful.

scripts/slave/recipes/polymer.py

 # Copyright (c) 2013 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.
 
 
 DEPS = [
   'gclient',
   'git',
   'path',
   'platform',
@@ skipping 79 matching lines @@
                  cwd=api.path.checkout(), env=node_env)
 
   yield api.step('test', test_prefix + ['grunt' + cmd_suffix,
                  'test-buildbot'], cwd=api.path.checkout(),
                  env=node_env, allow_subannotations=True)
 
 
 def GenTests(api):
   # Test paths and commands on each platform.
   for plat in ('mac', 'linux', 'win'):
-    yield 'polymer-%s' % plat, {
-      'properties': api.properties_scheduled(
-          repository='https://github.com/Polymer/polymer',
-          buildername='polymer %s' % plat),
-      'mock': {
-        'platform': {
-            'name': plat
-        }
-      },
-    }
+    yield (
+      api.Test('polymer-%s' % plat) +
+      api.properties.scheduled(
+        repository='https://github.com/Polymer/polymer',
+        buildername='polymer %s' % plat,
+      ) +
+      api.platform.name(plat)
+    )
+
   # Make sure the steps are right for deps-triggered jobs.
-  yield 'polymer-from-platform', {
-    'properties': api.properties_scheduled(
-        repository='https://github.com/Polymer/platform',
-        buildername='polymer linux',
-        scheduler='polymer-platform')
-  }
+  yield (
+    api.Test('polymer-from-platform') +
+    api.properties.scheduled(
+      repository='https://github.com/Polymer/platform',
+      buildername='polymer linux',
+      scheduler='polymer-platform'
+    )
+  )