1 files changed, 64 insertions, 0 deletions
diff --git a/tests/unit/abort_controller_test.ts b/tests/unit/abort_controller_test.ts
new file mode 100644
index 000000000..60ea6aa24
--- /dev/null
+++ b/tests/unit/abort_controller_test.ts
@@ -0,0 +1,64 @@
+// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
+
+import { assert, assertEquals } from "./test_util.ts";
+
+Deno.test(function basicAbortController() {
+  const controller = new AbortController();
+  assert(controller);
+  const { signal } = controller;
+  assert(signal);
+  assertEquals(signal.aborted, false);
+  controller.abort();
+  assertEquals(signal.aborted, true);
+});
+
+Deno.test(function signalCallsOnabort() {
+  const controller = new AbortController();
+  const { signal } = controller;
+  let called = false;
+  signal.onabort = (evt) => {
+    assert(evt);
+    assertEquals(evt.type, "abort");
+    called = true;
+  };
+  controller.abort();
+  assert(called);
+});
+
+Deno.test(function signalEventListener() {
+  const controller = new AbortController();
+  const { signal } = controller;
+  let called = false;
+  signal.addEventListener("abort", function (ev) {
+    assert(this === signal);
+    assertEquals(ev.type, "abort");
+    called = true;
+  });
+  controller.abort();
+  assert(called);
+});
+
+Deno.test(function onlyAbortsOnce() {
+  const controller = new AbortController();
+  const { signal } = controller;
+  let called = 0;
+  signal.addEventListener("abort", () => called++);
+  signal.onabort = () => {
+    called++;
+  };
+  controller.abort();
+  assertEquals(called, 2);
+  controller.abort();
+  assertEquals(called, 2);
+});
+
+Deno.test(function controllerHasProperToString() {
+  const actual = Object.prototype.toString.call(new AbortController());
+  assertEquals(actual, "[object AbortController]");
+});
+
+Deno.test(function abortReason() {
+  const signal = AbortSignal.abort("hey!");
+  assertEquals(signal.aborted, true);
+  assertEquals(signal.reason, "hey!");
+});