fetch-tests.js (2634B)
1 // This method generates a number of tests verifying fetching of blob URLs, 2 // allowing the same tests to be used both with fetch() and XMLHttpRequest. 3 // 4 // |fetch_method| is only used in test names, and should describe the 5 // (javascript) method being used by the other two arguments (i.e. 'fetch' or 'XHR'). 6 // 7 // |fetch_should_succeed| is a callback that is called with the Test and a URL. 8 // Fetching the URL is expected to succeed. The callback should return a promise 9 // resolved with whatever contents were fetched. 10 // 11 // |fetch_should_fail| similarly is a callback that is called with the Test, a URL 12 // to fetch, and optionally a method to use to do the fetch. If no method is 13 // specified the callback should use the 'GET' method. Fetching of these URLs is 14 // expected to fail, and the callback should return a promise that resolves iff 15 // fetching did indeed fail. 16 function fetch_tests(fetch_method, fetch_should_succeed, fetch_should_fail) { 17 const blob_contents = 'test blob contents'; 18 const blob = new Blob([blob_contents]); 19 20 promise_test(t => { 21 const url = URL.createObjectURL(blob); 22 23 return fetch_should_succeed(t, url).then(text => { 24 assert_equals(text, blob_contents); 25 }); 26 }, 'Blob URLs can be used in ' + fetch_method); 27 28 promise_test(t => { 29 const url = URL.createObjectURL(blob); 30 31 return fetch_should_succeed(t, url + '#fragment').then(text => { 32 assert_equals(text, blob_contents); 33 }); 34 }, fetch_method + ' with a fragment should succeed'); 35 36 promise_test(t => { 37 const url = URL.createObjectURL(blob); 38 URL.revokeObjectURL(url); 39 40 return fetch_should_fail(t, url); 41 }, fetch_method + ' of a revoked URL should fail'); 42 43 promise_test(t => { 44 const url = URL.createObjectURL(blob); 45 URL.revokeObjectURL(url + '#fragment'); 46 47 return fetch_should_succeed(t, url).then(text => { 48 assert_equals(text, blob_contents); 49 }); 50 }, 'Only exact matches should revoke URLs, using ' + fetch_method); 51 52 promise_test(t => { 53 const url = URL.createObjectURL(blob); 54 55 return fetch_should_fail(t, url + '?querystring'); 56 }, 'Appending a query string should cause ' + fetch_method + ' to fail'); 57 58 promise_test(t => { 59 const url = URL.createObjectURL(blob); 60 61 return fetch_should_fail(t, url + '/path'); 62 }, 'Appending a path should cause ' + fetch_method + ' to fail'); 63 64 for (const method of ['HEAD', 'POST', 'DELETE', 'OPTIONS', 'PUT', 'CUSTOM']) { 65 const url = URL.createObjectURL(blob); 66 67 promise_test(t => { 68 return fetch_should_fail(t, url, method); 69 }, fetch_method + ' with method "' + method + '" should fail'); 70 } 71 }