Update web pack tests

Author: dtopuzov

core/osutils/image_utils.py

@@ -9,6 +9,7 @@ def image_match(actual_image_path, expected_image_path, tolerance=0.05):
         Compare two images.
         :param actual_image_path: Path to actual image.
         :param expected_image_path: Path to expected image.
+        :param tolerance: Tolerance in percents.
         :return: match (boolean value), diff_percent (diff %), diff_image (diff image)
         """
         actual_image = Image.open(actual_image_path)

core/tns/tns.py

@@ -390,7 +390,7 @@ def build_android(attributes={}, assert_success=True, tns_path=None, log_trace=F
                     "Platform folder contains wrong tns-core-modules! " + os.linesep + "Modules version: " \
                     + modules_version + os.linesep + "package.json: " + os.linesep + modules_json_in_platforms
             else:
-                # assert "Webpack compilation complete" in output
+                assert "Webpack compilation complete" in output
                 assert "after-prepare/nativescript-dev-webpack.js" in output
                 assert File.exists(os.path.join(app_name, TnsAsserts.PLATFORM_ANDROID_APP_PATH, "bundle.js"))
                 assert File.exists(os.path.join(app_name, TnsAsserts.PLATFORM_ANDROID_APP_PATH, "package.json"))
@@ -490,7 +490,7 @@ def build_ios(attributes={}, assert_success=True, tns_path=None, log_trace=False
             if "--bundle" not in attributes.keys():
                 assert "Webpack compilation complete" not in output
             else:
-                # assert "Webpack compilation complete" in output
+                assert "Webpack compilation complete" in output
                 assert "after-prepare/nativescript-dev-webpack.js" in output
 
         return output