1// META: script=resources/fetch-tests.js 2 3function fetch_should_succeed(test, request) { 4 return fetch(request).then(response => response.text()); 5} 6 7function fetch_should_fail(test, url, method = 'GET') { 8 return promise_rejects_js(test, TypeError, fetch(url, {method: method})); 9} 10 11fetch_tests('fetch', fetch_should_succeed, fetch_should_fail); 12 13promise_test(t => { 14 const blob_contents = 'test blob contents'; 15 const blob_type = 'image/png'; 16 const blob = new Blob([blob_contents], {type: blob_type}); 17 const url = URL.createObjectURL(blob); 18 19 return fetch(url).then(response => { 20 assert_equals(response.headers.get('Content-Type'), blob_type); 21 }); 22}, 'fetch should return Content-Type from Blob'); 23 24promise_test(t => { 25 const blob_contents = 'test blob contents'; 26 const blob = new Blob([blob_contents]); 27 const url = URL.createObjectURL(blob); 28 const request = new Request(url); 29 30 // Revoke the object URL. Request should take a reference to the blob as 31 // soon as it receives it in open(), so the request succeeds even though we 32 // revoke the URL before calling fetch(). 33 URL.revokeObjectURL(url); 34 35 return fetch_should_succeed(t, request).then(text => { 36 assert_equals(text, blob_contents); 37 }); 38}, 'Revoke blob URL after creating Request, will fetch'); 39 40promise_test(function(t) { 41 const blob_contents = 'test blob contents'; 42 const blob = new Blob([blob_contents]); 43 const url = URL.createObjectURL(blob); 44 45 const result = fetch_should_succeed(t, url).then(text => { 46 assert_equals(text, blob_contents); 47 }); 48 49 // Revoke the object URL. fetch should have already resolved the blob URL. 50 URL.revokeObjectURL(url); 51 52 return result; 53}, 'Revoke blob URL after calling fetch, fetch should succeed'); 54