1 files changed, 37 insertions, 0 deletions
diff --git a/testing/web-platform/tests/url/urlsearchparams-has.any.js b/testing/web-platform/tests/url/urlsearchparams-has.any.js
new file mode 100644
index 0000000000..54cbf286db
--- /dev/null
+++ b/testing/web-platform/tests/url/urlsearchparams-has.any.js
@@ -0,0 +1,37 @@
+test(function() {
+    var params = new URLSearchParams('a=b&c=d');
+    assert_true(params.has('a'));
+    assert_true(params.has('c'));
+    assert_false(params.has('e'));
+    params = new URLSearchParams('a=b&c=d&a=e');
+    assert_true(params.has('a'));
+    params = new URLSearchParams('=b&c=d');
+    assert_true(params.has(''));
+    params = new URLSearchParams('null=a');
+    assert_true(params.has(null));
+}, 'Has basics');
+
+test(function() {
+    var params = new URLSearchParams('a=b&c=d&&');
+    params.append('first', 1);
+    params.append('first', 2);
+    assert_true(params.has('a'), 'Search params object has name "a"');
+    assert_true(params.has('c'), 'Search params object has name "c"');
+    assert_true(params.has('first'), 'Search params object has name "first"');
+    assert_false(params.has('d'), 'Search params object has no name "d"');
+    params.delete('first');
+    assert_false(params.has('first'), 'Search params object has no name "first"');
+}, 'has() following delete()');
+
+test(() => {
+  const params = new URLSearchParams("a=b&a=d&c&e&");
+  assert_true(params.has('a', 'b'));
+  assert_false(params.has('a', 'c'));
+  assert_true(params.has('a', 'd'));
+  assert_true(params.has('e', ''));
+  params.append('first', null);
+  assert_false(params.has('first', ''));
+  assert_true(params.has('first', 'null'));
+  params.delete('a', 'b');
+  assert_true(params.has('a', 'd'));
+}, "Two-argument has()");