src/third_party/WebKit/LayoutTests/storage/indexeddb/blob-contenttype.html

   1 <!DOCTYPE html>
   2 <script src="../../resources/testharness.js"></script>
   3 <script src="../../resources/testharnessreport.js"></script>
   4 <script>
   5
   6 function indexeddb_test(upgrade_func, body_func, description) {
   7     async_test(function(t) {
   8         var dbname = location.pathname + ' - ' + description;
   9         var deleteRequest = indexedDB.deleteDatabase(dbname);
  10         deleteRequest.onsuccess = t.step_func(function() {
  11             var openRequest = indexedDB.open(dbname);
  12             openRequest.onupgradeneeded = t.step_func(function() {
  13                 upgrade_func(t, openRequest.result);
  14             });
  15             openRequest.onsuccess = t.step_func(function() {
  16                 body_func(t, openRequest.result);
  17             });
  18             openRequest.onerror = t.unreached_func('open failed');
  19         });
  20     }, description);
  21 }
  22
  23 indexeddb_test(
  24     function upgrade(t, db) {
  25         db.createObjectStore('store');
  26     },
  27     function success(t, db) {
  28         var type = 'x-files/trust-no-one';
  29
  30         var blob = new Blob(['mulder', 'scully'], {type: type});
  31         assert_equals(blob.type, type, 'Blob type should match constructor option');
  32
  33         var tx = db.transaction('store', 'readwrite');
  34         tx.objectStore('store').put(blob, 'key');
  35
  36         tx.oncomplete = t.step_func(function() {
  37             var tx = db.transaction('store');
  38             tx.objectStore('store').get('key').onsuccess = t.step_func(function(e) {
  39                 var result = e.target.result;
  40                 assert_equals(result.type, type, 'Blob type should survive round-trip');
  41
  42                 var url = URL.createObjectURL(result);
  43                 var xhr = new XMLHttpRequest(), async = true;
  44                 xhr.open('GET', url, async);
  45                 xhr.send();
  46                 xhr.onreadystatechange = t.step_func(function() {
  47                     if (xhr.readyState !== XMLHttpRequest.DONE)
  48                         return;
  49                     assert_equals(xhr.getResponseHeader('Content-Type'), type,
  50                                   'Blob type should be preserved when fetched');
  51                     t.done();
  52                 });
  53             });
  54         });
  55     },
  56     'Ensure that content type round trips when reading blob data'
  57 );
  58
  59 </script>