diff --git a/helloworld-test-sample/src/test/suite/extension.test.ts b/helloworld-test-sample/src/test/suite/extension.test.ts
index 820cf906..af4e9eb2 100644
--- a/helloworld-test-sample/src/test/suite/extension.test.ts
+++ b/helloworld-test-sample/src/test/suite/extension.test.ts
@@ -12,7 +12,7 @@ suite('Extension Test Suite', () => {
 	});
 
 	test('Sample test', () => {
-		assert.equal(-1, [1, 2, 3].indexOf(5));
-		assert.equal(-1, [1, 2, 3].indexOf(0));
+		assert.equal([1, 2, 3].indexOf(5), -1);
+		assert.equal([1, 2, 3].indexOf(0), -1);
 	});
 });