<!doctype html>
<title>Tests for step_wait</title>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<div id=log></div>
<script>
promise_test(async t => {
  let x = 1;
  Promise.resolve().then(() => ++x);
  await t.step_wait(() => x === 1);
  assert_equals(x, 2);
}, "Basic step_wait() test");

promise_test(async t => {
  let cond = false;
  let x = 0;
  setTimeout(() => cond = true, 100);
  await t.step_wait(() => {
    ++x;
    return cond;
  });
  assert_equals(x, 2);
}, "step_wait() isn't invoked too often");

promise_test(async t => {
  await t.step_wait(); // Throws
}, "step_wait() takes an argument");
</script>
<script type="text/json" id="expected">
{
  "summarized_tests": [
    {
      "name": "Basic step_wait() test",
      "message": null,
      "properties": {},
      "status_string": "PASS"
    },
    {
      "name": "step_wait() isn't invoked too often",
      "message": null,
      "properties": {},
      "status_string": "PASS"
    },
    {
      "name": "step_wait() takes an argument",
      "message": "cond is not a function",
      "properties": {},
      "status_string": "FAIL"
    }
  ],
  "type": "complete",
  "summarized_status": {
    "status_string": "OK",
    "message": null
  }
}
</script>
