diff --git a/dom/abort/AbortSignal.any.js b/dom/abort/AbortSignal.any.js
index 1d7d7678eb1a6e2..3bbdc11a92f90d4 100644
--- a/dom/abort/AbortSignal.any.js
+++ b/dom/abort/AbortSignal.any.js
@@ -10,3 +10,31 @@ async_test(t => {
s.onabort = t.unreached_func("abort event handler called");
t.step_timeout(() => { t.done(); }, 2000);
}, "signal returned by AbortSignal.abort() should not fire abort event");
+
+test(t => {
+ const signal = AbortSignal.timeout(0);
+ assert_true(signal instanceof AbortSignal, "returned object is an AbortSignal");
+ assert_false(signal.aborted, "returned signal is not already aborted");
+}, "AbortSignal.timeout() returns a non-aborted signal");
+
+async_test(t => {
+ const signal = AbortSignal.timeout(5);
+ signal.onabort = t.step_func_done(() => {
+ assert_true(signal.aborted, "signal is aborted");
+ assert_true(signal.reason instanceof DOMException, "signal.reason is a DOMException");
+ assert_equals(signal.reason.name, "TimeoutError", "signal.reason is a TimeoutError");
+ });
+}, "Signal returned by AbortSignal.timeout() times out");
+
+async_test(t => {
+ let result = "";
+ for (const value of ["1", "2", "3"]) {
+ const signal = AbortSignal.timeout(5);
+ signal.onabort = t.step_func(() => { result += value; });
+ }
+
+ const signal = AbortSignal.timeout(5);
+ signal.onabort = t.step_func_done(() => {
+ assert_equals(result, "123", "Timeout order should be 123");
+ });
+}, "AbortSignal timeouts fire in order");
diff --git a/dom/abort/abort-signal-timeout.html b/dom/abort/abort-signal-timeout.html
new file mode 100644
index 000000000000000..2a9c13d61434b43
--- /dev/null
+++ b/dom/abort/abort-signal-timeout.html
@@ -0,0 +1,19 @@
+
+
+AbortSignal.timeout frame detach
+
+
+
+