huge-fetch.any.js - mozsearch

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This WPT test may be referenced by the following Test IDs:
- /fetch/api/crashtests/huge-fetch.any.html - WPT Dashboard Interop Dashboard
- /fetch/api/crashtests/huge-fetch.any.serviceworker.html - WPT Dashboard Interop Dashboard
- /fetch/api/crashtests/huge-fetch.any.sharedworker.html - WPT Dashboard Interop Dashboard
- /fetch/api/crashtests/huge-fetch.any.worker.html - WPT Dashboard Interop Dashboard

// META: global=window,worker

'use strict';

promise_test(async t => {

  const response = await fetch('../resources/huge-response.py');

  const reader = response.body.getReader();

  // Read one chunk just to show willing.

  const { value, done } = await reader.read();

  assert_false(done, 'there should be some data');

  assert_greater_than(value.byteLength, 0, 'the chunk should be non-empty');

  // Wait 2 seconds to give it a chance to crash.

  await new Promise(resolve => t.step_timeout(resolve, 2000));

  // If we get here without crashing we passed the test.

  reader.cancel();

}, 'fetching a huge cacheable file but not reading it should not crash');