Setup basic Runtime with properties and platform.

recipe_engine/unittests/run_test.py

Index: recipe_engine/unittests/run_test.py
diff --git a/recipe_engine/unittests/run_test.py b/recipe_engine/unittests/run_test.py
index 1f3795aacb6fae3ab586c33f06957d222408a6a7..bda73818aba2486a846a0ef9f987687dfa5472c7 100755
--- a/recipe_engine/unittests/run_test.py
+++ b/recipe_engine/unittests/run_test.py
@@ -17,6 +17,7 @@ from test_env import BASE_DIR
 import recipe_engine.run
 import recipe_engine.simulation_test as simulation_test
 import recipe_engine.step_runner
+import recipe_engine.util
 from recipe_engine import requests_ssl
 from recipe_engine import recipe_test_api
 import mock
@@ -137,28 +138,28 @@ class RunTest(unittest.TestCase):
 
   def test_run_unconsumed(self):
     with recipe_engine.stream.NoopStreamEngine() as stream_engine:
-      properties = {}
+      rt = recipe_engine.run.Runtime(
+          {},
+          platform=recipe_engine.util.Platform(
+              name='linux', arch='testmachine', bits=64))
 
       test_data = recipe_engine.recipe_test_api.TestData()
       test_data.expect_exception('SomeException')
 
       api = mock.Mock()
-      api._engine = mock.Mock()
-      api._engine.properties = properties
-
       annotator = simulation_test.SimulationAnnotatorStreamEngine()
       engine = recipe_engine.run.RecipeEngine(
           recipe_engine.step_runner.SimulationStepRunner(
               stream_engine, test_data, annotator),
-          properties,
+          rt,
           None)
 
       class FakeScript(object):
-        def run(self, _, __):
+        def run(self, _api, _rt):
           return None
 
       with self.assertRaises(AssertionError):
-        engine.run(FakeScript(), api, properties)
+        engine.run(FakeScript(), api)
 
   def test_subannotations(self):
     proc = subprocess.Popen(