From 742dbdd0a5c0f0f75d56101b3551077ec06cd53f Mon Sep 17 00:00:00 2001
From: Cody Leff <cody@preset.io>
Date: Thu, 1 Sep 2022 08:42:07 -0700
Subject: [PATCH] fix: Fix console errors about feature flags when running
 tests (#21275)

---
 .../test/utils/featureFlag.test.ts            | 48 +++++++++++++++----
 superset-frontend/spec/helpers/shim.ts        |  1 +
 2 files changed, 39 insertions(+), 10 deletions(-)

diff --git a/superset-frontend/packages/superset-ui-core/test/utils/featureFlag.test.ts b/superset-frontend/packages/superset-ui-core/test/utils/featureFlag.test.ts
index 52a57909aa38..b2a273d2ed78 100644
--- a/superset-frontend/packages/superset-ui-core/test/utils/featureFlag.test.ts
+++ b/superset-frontend/packages/superset-ui-core/test/utils/featureFlag.test.ts
@@ -19,17 +19,45 @@
 
 import { FeatureFlag, isFeatureEnabled } from '@superset-ui/core';
 
-describe('isFeatureFlagEnabled', () => {
+const originalFeatureFlags = window.featureFlags;
+// eslint-disable-next-line no-console
+const originalConsoleError = console.error;
+const reset = () => {
+  window.featureFlags = originalFeatureFlags;
+  // eslint-disable-next-line no-console
+  console.error = originalConsoleError;
+};
+
+it('returns false and raises console error if feature flags have not been initialized', () => {
+  // eslint-disable-next-line no-console
+  console.error = jest.fn();
+  delete (window as any).featureFlags;
+  expect(isFeatureEnabled(FeatureFlag.ALLOW_DASHBOARD_DOMAIN_SHARDING)).toEqual(
+    false,
+  );
+
+  // eslint-disable-next-line no-console
+  expect(console.error).toHaveBeenNthCalledWith(
+    1,
+    'Failed to query feature flag ALLOW_DASHBOARD_DOMAIN_SHARDING (see error below)',
+  );
+
+  reset();
+});
+
+it('returns false for unset feature flag', () => {
+  expect(isFeatureEnabled(FeatureFlag.ALLOW_DASHBOARD_DOMAIN_SHARDING)).toEqual(
+    false,
+  );
+
+  reset();
+});
+
+it('returns true for set feature flag', () => {
   window.featureFlags = {
     [FeatureFlag.CLIENT_CACHE]: true,
   };
-  it('returns false for unset feature flag', () => {
-    expect(
-      isFeatureEnabled(FeatureFlag.ALLOW_DASHBOARD_DOMAIN_SHARDING),
-    ).toEqual(false);
-  });
-
-  it('returns true for set feature flag', () => {
-    expect(isFeatureEnabled(FeatureFlag.CLIENT_CACHE)).toEqual(true);
-  });
+
+  expect(isFeatureEnabled(FeatureFlag.CLIENT_CACHE)).toEqual(true);
+  reset();
 });
diff --git a/superset-frontend/spec/helpers/shim.ts b/superset-frontend/spec/helpers/shim.ts
index 7955ee15e0f0..cf11e106b754 100644
--- a/superset-frontend/spec/helpers/shim.ts
+++ b/superset-frontend/spec/helpers/shim.ts
@@ -53,6 +53,7 @@ g.window.performance = { now: () => new Date().getTime() };
 g.window.Worker = Worker;
 g.window.IntersectionObserver = IntersectionObserver;
 g.window.ResizeObserver = ResizeObserver;
+g.window.featureFlags = {};
 g.URL.createObjectURL = () => '';
 g.caches = new CacheStorage();