third_party/WebKit/LayoutTests/storage/indexeddb/empty-blob-file.html

   1 <!DOCTYPE html>
   2 <script src="../../resources/js-test.js"></script>
   3 <script src="resources/shared.js"></script>
   4 <input type="file" id="emptyFileInput"></input>
   5 <input type="file" id="emptyFileListInput" multiple></input>
   6 <script>
   7
   8 description("Confirm that IndexedDB can store an empty Blob/File/FileList");
   9
  10 var emptyFileInput = document.getElementById("emptyFileInput");
  11 var emptyFileListInput = document.getElementById("emptyFileListInput");
  12 if (window.eventSender) {
  13     var fileRect = emptyFileInput.getClientRects()[0];
  14     var targetX = fileRect.left + fileRect.width / 2;
  15     var targetY = fileRect.top + fileRect.height / 2;
  16     eventSender.beginDragWithFiles(['resources/empty.txt']);
  17     eventSender.mouseMoveTo(targetX, targetY);
  18     eventSender.mouseUp();
  19 }
  20
  21 function prepareDatabase()
  22 {
  23     db = event.target.result;
  24     var trans = event.target.transaction;
  25     evalAndLog("store = db.createObjectStore('storeName')");
  26     evalAndLog("store.put('value', 'key')");
  27     trans.onerror = unexpectedErrorCallback;
  28     trans.onabort = unexpectedAbortCallback;
  29 }
  30
  31 var blobValidation = ".size == 0";
  32 function testEmptyBlob()
  33 {
  34     preamble();
  35     evalAndLog("blob = new Blob([])");
  36     validateResult("blob", blobValidation, testEmptyDataBlob);
  37 }
  38 function testEmptyDataBlob()
  39 {
  40     preamble();
  41     evalAndLog("blob = new Blob(['', '', ''])");
  42     validateResult("blob", blobValidation, testEmptyNestedBlob);
  43 }
  44 function testEmptyNestedBlob()
  45 {
  46     preamble();
  47     evalAndLog("blob = new Blob(['', new Blob([]), ''])");
  48     validateResult("blob", blobValidation, testEmptyNestedDataBlob);
  49 }
  50 function testEmptyNestedDataBlob()
  51 {
  52     preamble();
  53     evalAndLog("blob = new Blob(['', new Blob(['']), ''])");
  54     validateResult("blob", blobValidation, testEmptyFileInsideBlob);
  55 }
  56 function testEmptyFileInsideBlob()
  57 {
  58     preamble();
  59     evalAndLog("file = emptyFileInput.files[0]");
  60     evalAndLog("blob = new Blob(['', file, ''])");
  61     validateResult("blob", blobValidation, testEmptyFileInsideNestedBlob);
  62 }
  63 function testEmptyFileInsideNestedBlob()
  64 {
  65     preamble();
  66     evalAndLog("file = emptyFileInput.files[0]");
  67     evalAndLog("blob = new Blob(['', new Blob([file]), ''])");
  68     validateResult("blob", blobValidation, testEmptyFile);
  69 }
  70
  71 var fileValidation = ".size == 0";
  72 function testEmptyFile()
  73 {
  74     preamble();
  75     evalAndLog("file = emptyFileInput.files[0]");
  76     validateResult("file", fileValidation, testEmptyFileList);
  77 }
  78
  79 var fileListValidation = ".length == 0";
  80 function testEmptyFileList()
  81 {
  82     preamble();
  83     evalAndLog("fileList = emptyFileListInput.files");
  84     validateResult("fileList",
  85         fileListValidation, finishJSTest);
  86 }
  87
  88 function validateResult(variable, validation, onSuccess)
  89 {
  90     var keyName = variable + "key";
  91     debug("");
  92     debug("validateResult(" + variable + "):");
  93     shouldBeTrue(variable + validation);
  94     evalAndLog("transaction = db.transaction('storeName', 'readwrite')");
  95     evalAndLog("store = transaction.objectStore('storeName')");
  96     evalAndLog("store.put(" + variable + ", '" + keyName + "')");
  97     transaction.onerror = unexpectedErrorCallback;
  98     transaction.onabort = unexpectedAbortCallback;
  99     var onGetSuccess = function (e) {
 100       shouldBeTrue("event.target.result" + validation);
 101       onSuccess();
 102     }
 103     transaction.oncomplete = function () {
 104       doRead(keyName, onGetSuccess);
 105     }
 106 }
 107
 108 function doRead(keyName, onSuccess)
 109 {
 110     evalAndLog("transaction = db.transaction('storeName', 'readwrite')");
 111     evalAndLog("store = transaction.objectStore('storeName')");
 112     evalAndLog("request = store.get('" + keyName + "')");
 113     request.onsuccess = onSuccess;
 114     transaction.onerror = unexpectedErrorCallback;
 115     transaction.onabort = unexpectedAbortCallback;
 116 }
 117
 118 if (window.eventSender) {
 119     indexedDBTest(prepareDatabase, testEmptyBlob);
 120 } else {
 121     alert("Select an empty file using the left input control above to initiate the test");
 122     document.getElementById("emptyFileInput").onchange = function() { indexedDBTest(prepareDatabase, testEmptyBlob); };
 123 }
 124 </script>