fix: added test cases for feature flags entry

Author: huniafatima-99

tubular/tests/example-frontend-config/app.yml

@@ -38,3 +38,6 @@ APP_CONFIG:
   LOCAL_JS_CONFIG_FILENAME: "env.config.jsx"
 
   JS_CONFIG_FILEPATH: "dummy/file/path/env.stage.config.jsx"
+
+FEATURE_FLAGS:
+  ENABLE_FEATURE_A: true

tubular/tests/test_frontend_build.py

@@ -45,6 +45,8 @@ def test_frontend_build_config_handling(
         assert exit_code == 0
         assert mock_install.call_count == 1
         assert mock_build.call_count == 1
+        print("LALALALALALALALAAL********************************")
+        print(mock_build.call_args[0][0])
         assert mock_build.call_args[0][0] == [
             "COMMON_VAR='common_value'",
             "COMMON_OVERRIDE_ME='overriden_value'",
@@ -66,7 +68,9 @@ def test_frontend_build_config_handling(
             "NONE='None'",
             "NONE_WITH_QUOTES='None'",
             "JS_CONFIG_FILEPATH='dummy/file/path/env.stage.config.jsx'",
-            "APP_VERSION='<COMMIT_HASH>'"
+            "ENABLE_FEATURE_A='True'",
+            "APP_VERSION='<COMMIT_HASH>'",
+            'FEATURE_FLAGS=\'{"ENABLE_FEATURE_A": true}\''
         ]
         assert mock_create_version.call_count == 1
         assert mock_shutil_copyfile.call_count == 1