1 files changed, 16 insertions, 0 deletions
diff --git a/js/url_test.ts b/js/url_test.ts
index 5744aa568..1861ef118 100644
--- a/js/url_test.ts
+++ b/js/url_test.ts
@@ -141,3 +141,19 @@ test(function urlBaseString(): void {
   );
   assertEquals(url.href, "https://foo:bar@baz.qat:8000/foo/bar?baz=foo#qux");
 });
+
+test(function deletingAllParamsRemovesQuestionMarkFromURL(): void {
+  const url = new URL("http://example.com/?param1&param2");
+  url.searchParams.delete("param1");
+  url.searchParams.delete("param2");
+  assertEquals(url.href, "http://example.com/");
+  assertEquals(url.search, "");
+});
+
+test(function removingNonExistentParamRemovesQuestionMarkFromURL(): void {
+  const url = new URL("http://example.com/?");
+  assertEquals(url.href, "http://example.com/?");
+  url.searchParams.delete("param1");
+  assertEquals(url.href, "http://example.com/");
+  assertEquals(url.search, "");
+});