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request.js
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request.js
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import { test, testThrows, summary } from './helpers.js';
console.log('Request Tests\n');
test('Request typeof', typeof Request, 'function');
test('Request toStringTag', Object.prototype.toString.call(new Request('https://example.com/')), '[object Request]');
testThrows('Request requires new', () => Request('https://example.com/'));
const req0 = new Request('https://example.com/');
test('Request method default', req0.method, 'GET');
test('Request url', req0.url, 'https://example.com/');
test('Request headers same object', req0.headers === req0.headers, true);
test('Request keepalive default', req0.keepalive, false);
test('Request duplex getter', req0.duplex, 'half');
const hdrReq = new Request('https://example.com/', {
headers: {
'Accept-Charset': 'blocked',
'X-Custom': 'ok',
},
});
test('Request filters forbidden headers', hdrReq.headers.get('accept-charset'), null);
test('Request keeps allowed headers', hdrReq.headers.get('x-custom'), 'ok');
const noCorsReq = new Request('https://example.com/', {
mode: 'no-cors',
headers: {
'Content-Type': 'text/plain;charset=UTF-8',
'X-Blocked': 'nope',
},
});
test('Request no-cors keeps safelisted content-type', noCorsReq.headers.get('content-type'), 'text/plain;charset=UTF-8');
test('Request no-cors strips non-safelisted header', noCorsReq.headers.get('x-blocked'), null);
testThrows(
'Request forbids keepalive with stream body',
() => new Request('https://example.com/', {
method: 'POST',
body: new ReadableStream(),
duplex: 'half',
keepalive: true,
})
);
testThrows(
'Request requires duplex for stream body',
() => new Request('https://example.com/', {
method: 'POST',
body: new ReadableStream(),
})
);
testThrows(
'Request rejects duplex full',
() => new Request('https://example.com/', {
method: 'POST',
body: 'hello',
duplex: 'full',
})
);
testThrows(
'Request rejects forbidden method',
() => new Request('https://example.com/', { method: 'TRACE' })
);
testThrows(
'Request rejects GET with direct body',
() => new Request('https://example.com/', { method: 'GET', body: 'hello' })
);
const bodyReq = new Request('https://example.com/', {
method: 'POST',
body: 'hello world',
});
const bodyStream = bodyReq.body;
test('Request body is a ReadableStream', bodyStream instanceof ReadableStream, true);
test('Request body getter is stable', bodyReq.body === bodyStream, true);
test('Request bodyUsed before consume', bodyReq.bodyUsed, false);
test('Request text after body access', await bodyReq.text(), 'hello world');
test('Request bodyUsed after consume', bodyReq.bodyUsed, true);
test('Request body object preserved after consume', bodyReq.body === bodyStream, true);
const srcReq = new Request('https://example.com/', {
method: 'POST',
body: 'copied body',
});
const srcBody = srcReq.body;
const copiedReq = new Request(srcReq);
test('Request-from-Request disturbs source', srcReq.bodyUsed, true);
test('Request-from-Request keeps source body object', srcReq.body === srcBody, true);
test('Request-from-Request creates new body object', copiedReq.body === srcBody, false);
test('Request-from-Request text', await copiedReq.text(), 'copied body');
const failReq = new Request('https://example.com/', {
method: 'POST',
body: 'will stay unused',
});
testThrows(
'Request GET from Request with body throws',
() => new Request(failReq, { method: 'GET' })
);
test('Request failed construction does not disturb source', failReq.bodyUsed, false);
const usedReq = new Request('https://example.com/', {
method: 'POST',
body: 'replace me',
});
await usedReq.text();
const replacedReq = new Request(usedReq, {
body: 'replacement body',
method: 'POST',
});
test('Request override from disturbed request succeeds', await replacedReq.text(), 'replacement body');
const initReq = new Request('https://example.com/', {
method: 'POST',
body: 'init body',
});
const reqFromInitReq = new Request('https://example.com/', initReq);
test('Request init from Request copies method', reqFromInitReq.method, 'POST');
test('Request init from Request copies body', await reqFromInitReq.text(), 'init body');
const emptyTypeReq = new Request('https://example.com/', {
method: 'POST',
headers: [['Content-Type', '']],
body: 'typed body',
});
const emptyTypeBlob = await emptyTypeReq.blob();
test('Request empty content-type preserved on blob', emptyTypeBlob.type, '');
summary();

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