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Test Info: Warnings
- This test has a WPT meta file that expects 1 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /webmcp/imperative/register_tool_toolchange.https.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<html>
<head>
<title>WebMCP toolchange</title>
<link rel="author" href="mailto:dom@chromium.org">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<script>
const tool = {
name: 'empty',
description: 'empty',
execute: () => {},
};
promise_test(async (t) => {
const events = [];
document.modelContext.addEventListener('toolchange', () => {
events.push('toolchange');
}, { once: true });
const p = document.modelContext.registerTool(tool);
p.then(() => {
events.push('resolve');
});
await p;
assert_array_equals(
events,
['toolchange', 'resolve'],
'toolchange event must trigger before registerTool promise resolves'
);
}, 'registerTool triggers toolchange before promise resolves');
</script>
</body>
</html>