1 files changed, 48 insertions, 0 deletions
diff --git a/testing/web-platform/tests/XMLHttpRequest/send-usp.js b/testing/web-platform/tests/XMLHttpRequest/send-usp.js
new file mode 100644
index 000000000..c00b2e0e0
--- /dev/null
+++ b/testing/web-platform/tests/XMLHttpRequest/send-usp.js
@@ -0,0 +1,48 @@
+const NUM_TESTS = 128;
+
+function encode(n) {
+  if (n === 0x20) {
+    return "\x2B";
+  }
+
+  if (n === 0x2A || n === 0x2D || n === 0x2E ||
+      (0x30 <= n && n <= 0x39) || (0x41 <= n && n <= 0x5A) ||
+      n === 0x5F || (0x61 <= n && n <= 0x7A)) {
+    return String.fromCharCode(n);
+  }
+
+  var s = n.toString(16).toUpperCase();
+  return "%" + (s.length === 2 ? s : '0' + s);
+}
+
+function run_test() {
+  var tests = [];
+  var overall_test = async_test("Overall fetch with URLSearchParams");
+  for (var i = 0; i < NUM_TESTS; i++) {
+    // Multiple subtests so that failures can be fine-grained
+    tests[i] = async_test("XMLHttpRequest.send(URLSearchParams) (" + i + ")");
+  }
+
+  // We use a single XHR since this test tends to time out
+  // with 128 consecutive fetches when run in parallel
+  // with many other WPT tests.
+  var x = new XMLHttpRequest();
+  x.onload = overall_test.step_func(function() {
+    var response_split = x.response.split("&");
+    overall_test.done();
+    for (var i = 0; i < NUM_TESTS; i++) {
+      tests[i].step(function() {
+        assert_equals(response_split[i], "a" + i + "="+encode(i));
+        tests[i].done();
+      });
+    }
+  });
+  x.onerror = overall_test.unreached_func();
+
+  x.open("POST", "resources/content.py");
+  var usp = new URLSearchParams();
+  for (var i = 0; i < NUM_TESTS; i++) {
+    usp.append("a" + i, String.fromCharCode(i));
+  }
+  x.send(usp)
+}