Add tests for the assertIsError function

MetaMask · Sep 26, 2023 · 498d6db · 498d6db
1 parent 2532dce
commit 498d6db
Showing 1 changed file with 13 additions and 1 deletion.
diff --git a/packages/name-controller/src/utils.test.ts b/packages/name-controller/src/utils.test.ts
@@ -1,4 +1,4 @@
-import { graphQL } from './util';
+import { assertIsError, graphQL } from './util';
 
 describe('Utils', () => {
   describe('graphQL', () => {
@@ -51,4 +51,16 @@ describe('Utils', () => {
       );
     });
   });
+
+  describe('assertIsError', () => {
+    it('does not throw if given an error', () => {
+      expect(() => assertIsError(new Error('test'))).not.toThrow();
+    });
+
+    it('throws if passed something that is not an error', () => {
+      expect(() => assertIsError('test')).toThrow(
+        `Invalid error of type 'string'`,
+      );
+    });
+  });
 });