1 files changed, 417 insertions, 0 deletions
diff --git a/dom/workers/test/worker_fileReader.js b/dom/workers/test/worker_fileReader.js
new file mode 100644
index 000000000..f4e91b325
--- /dev/null
+++ b/dom/workers/test/worker_fileReader.js
@@ -0,0 +1,417 @@
+var testRanCounter = 0;
+var expectedTestCount = 0;
+var testSetupFinished = false;
+
+function ok(a, msg) {
+  postMessage({type: 'check', status: !!a, msg: msg });
+}
+
+function is(a, b, msg) {
+  ok(a === b, msg);
+}
+
+function finish() {
+  postMessage({type: 'finish'});
+}
+
+function convertToUTF16(s) {
+  res = "";
+  for (var i = 0; i < s.length; ++i) {
+    c = s.charCodeAt(i);
+    res += String.fromCharCode(c & 255, c >>> 8);
+  }
+  return res;
+}
+
+function convertToUTF8(s) {
+  return unescape(encodeURIComponent(s));
+}
+
+function convertToDataURL(s) {
+  return "data:application/octet-stream;base64," + btoa(s);
+}
+
+onmessage = function(message) {
+  is(FileReader.EMPTY, 0, "correct EMPTY value");
+  is(FileReader.LOADING, 1, "correct LOADING value");
+  is(FileReader.DONE, 2, "correct DONE value");
+
+  // List of blobs.
+  var asciiFile = message.data.blobs.shift();
+  var binaryFile = message.data.blobs.shift();
+  var nonExistingFile = message.data.blobs.shift();
+  var utf8TextFile = message.data.blobs.shift();
+  var utf16TextFile = message.data.blobs.shift();
+  var emptyFile = message.data.blobs.shift();
+  var dataUrlFile0 = message.data.blobs.shift();
+  var dataUrlFile1 = message.data.blobs.shift();
+  var dataUrlFile2 = message.data.blobs.shift();
+
+  // List of buffers for testing.
+  var testTextData = message.data.testTextData;
+  var testASCIIData = message.data.testASCIIData;
+  var testBinaryData = message.data.testBinaryData;
+  var dataurldata0 = message.data.dataurldata0;
+  var dataurldata1 = message.data.dataurldata1;
+  var dataurldata2 = message.data.dataurldata2;
+
+  // Test that plain reading works and fires events as expected, both
+  // for text and binary reading
+
+  var onloadHasRunText = false;
+  var onloadStartHasRunText = false;
+  r = new FileReader();
+  is(r.readyState, FileReader.EMPTY, "correct initial text readyState");
+  r.onload = getLoadHandler(testASCIIData, testASCIIData.length, "plain reading");
+  r.addEventListener("load", function() { onloadHasRunText = true }, false);
+  r.addEventListener("loadstart", function() { onloadStartHasRunText = true }, false);
+  r.readAsText(asciiFile);
+  is(r.readyState, FileReader.LOADING, "correct loading text readyState");
+  is(onloadHasRunText, false, "text loading must be async");
+  is(onloadStartHasRunText, true, "text loadstart should fire sync");
+  expectedTestCount++;
+
+  var onloadHasRunBinary = false;
+  var onloadStartHasRunBinary = false;
+  r = new FileReader();
+  is(r.readyState, FileReader.EMPTY, "correct initial binary readyState");
+  r.addEventListener("load", function() { onloadHasRunBinary = true }, false);
+  r.addEventListener("loadstart", function() { onloadStartHasRunBinary = true }, false);
+  r.readAsBinaryString(binaryFile);
+  r.onload = getLoadHandler(testBinaryData, testBinaryData.length, "binary reading");
+  is(r.readyState, FileReader.LOADING, "correct loading binary readyState");
+  is(onloadHasRunBinary, false, "binary loading must be async");
+  is(onloadStartHasRunBinary, true, "binary loadstart should fire sync");
+  expectedTestCount++;
+
+  var onloadHasRunArrayBuffer = false;
+  var onloadStartHasRunArrayBuffer = false;
+  r = new FileReader();
+  is(r.readyState, FileReader.EMPTY, "correct initial arrayBuffer readyState");
+  r.addEventListener("load", function() { onloadHasRunArrayBuffer = true }, false);
+  r.addEventListener("loadstart", function() { onloadStartHasRunArrayBuffer = true }, false);
+  r.readAsArrayBuffer(binaryFile);
+  r.onload = getLoadHandlerForArrayBuffer(testBinaryData, testBinaryData.length, "array buffer reading");
+  is(r.readyState, FileReader.LOADING, "correct loading arrayBuffer readyState");
+  is(onloadHasRunArrayBuffer, false, "arrayBuffer loading must be async");
+  is(onloadStartHasRunArrayBuffer, true, "arrayBuffer loadstart should fire sync");
+  expectedTestCount++;
+
+  // Test a variety of encodings, and make sure they work properly
+  r = new FileReader();
+  r.onload = getLoadHandler(testASCIIData, testASCIIData.length, "no encoding reading");
+  r.readAsText(asciiFile, "");
+  expectedTestCount++;
+
+  r = new FileReader();
+  r.onload = getLoadHandler(testASCIIData, testASCIIData.length, "iso8859 reading");
+  r.readAsText(asciiFile, "iso-8859-1");
+  expectedTestCount++;
+
+  r = new FileReader();
+  r.onload = getLoadHandler(testTextData,
+                            convertToUTF8(testTextData).length,
+                            "utf8 reading");
+  r.readAsText(utf8TextFile, "utf8");
+  expectedTestCount++;
+
+  r = new FileReader();
+  r.readAsText(utf16TextFile, "utf-16");
+  r.onload = getLoadHandler(testTextData,
+                            convertToUTF16(testTextData).length,
+                            "utf16 reading");
+  expectedTestCount++;
+
+  // Test get result without reading
+  r = new FileReader();
+  is(r.readyState, FileReader.EMPTY,
+     "readyState in test reader get result without reading");
+  is(r.error, null,
+     "no error in test reader get result without reading");
+  is(r.result, null,
+     "result in test reader get result without reading");
+
+  // Test loading an empty file works (and doesn't crash!)
+  r = new FileReader();
+  r.onload = getLoadHandler("", 0, "empty no encoding reading");
+  r.readAsText(emptyFile, "");
+  expectedTestCount++;
+
+  r = new FileReader();
+  r.onload = getLoadHandler("", 0, "empty utf8 reading");
+  r.readAsText(emptyFile, "utf8");
+  expectedTestCount++;
+
+  r = new FileReader();
+  r.onload = getLoadHandler("", 0, "empty utf16 reading");
+  r.readAsText(emptyFile, "utf-16");
+  expectedTestCount++;
+
+  r = new FileReader();
+  r.onload = getLoadHandler("", 0, "empty binary string reading");
+  r.readAsBinaryString(emptyFile);
+  expectedTestCount++;
+
+  r = new FileReader();
+  r.onload = getLoadHandlerForArrayBuffer("", 0, "empty array buffer reading");
+  r.readAsArrayBuffer(emptyFile);
+  expectedTestCount++;
+
+  r = new FileReader();
+  r.onload = getLoadHandler(convertToDataURL(""), 0, "empt binary string reading");
+  r.readAsDataURL(emptyFile);
+  expectedTestCount++;
+
+  // Test reusing a FileReader to read multiple times
+  r = new FileReader();
+  r.onload = getLoadHandler(testASCIIData,
+                            testASCIIData.length,
+                            "to-be-reused reading text")
+  var makeAnotherReadListener = function(event) {
+    r = event.target;
+    r.removeEventListener("load", makeAnotherReadListener, false);
+    r.onload = getLoadHandler(testASCIIData,
+                              testASCIIData.length,
+                              "reused reading text");
+    r.readAsText(asciiFile);
+  };
+  r.addEventListener("load", makeAnotherReadListener, false);
+  r.readAsText(asciiFile);
+  expectedTestCount += 2;
+
+  r = new FileReader();
+  r.onload = getLoadHandler(testBinaryData,
+                            testBinaryData.length,
+                            "to-be-reused reading binary")
+  var makeAnotherReadListener2 = function(event) {
+    r = event.target;
+    r.removeEventListener("load", makeAnotherReadListener2, false);
+    r.onload = getLoadHandler(testBinaryData,
+                              testBinaryData.length,
+                              "reused reading binary");
+    r.readAsBinaryString(binaryFile);
+  };
+  r.addEventListener("load", makeAnotherReadListener2, false);
+  r.readAsBinaryString(binaryFile);
+  expectedTestCount += 2;
+
+  r = new FileReader();
+  r.onload = getLoadHandler(convertToDataURL(testBinaryData),
+                            testBinaryData.length,
+                            "to-be-reused reading data url")
+  var makeAnotherReadListener3 = function(event) {
+    r = event.target;
+    r.removeEventListener("load", makeAnotherReadListener3, false);
+    r.onload = getLoadHandler(convertToDataURL(testBinaryData),
+                              testBinaryData.length,
+                              "reused reading data url");
+    r.readAsDataURL(binaryFile);
+  };
+  r.addEventListener("load", makeAnotherReadListener3, false);
+  r.readAsDataURL(binaryFile);
+  expectedTestCount += 2;
+
+  r = new FileReader();
+  r.onload = getLoadHandlerForArrayBuffer(testBinaryData,
+                                          testBinaryData.length,
+                                          "to-be-reused reading arrayBuffer")
+  var makeAnotherReadListener4 = function(event) {
+    r = event.target;
+    r.removeEventListener("load", makeAnotherReadListener4, false);
+    r.onload = getLoadHandlerForArrayBuffer(testBinaryData,
+                                            testBinaryData.length,
+                                            "reused reading arrayBuffer");
+    r.readAsArrayBuffer(binaryFile);
+  };
+  r.addEventListener("load", makeAnotherReadListener4, false);
+  r.readAsArrayBuffer(binaryFile);
+  expectedTestCount += 2;
+
+  // Test first reading as ArrayBuffer then read as something else
+  // (BinaryString) and doesn't crash
+  r = new FileReader();
+  r.onload = getLoadHandlerForArrayBuffer(testBinaryData,
+                                          testBinaryData.length,
+                                          "to-be-reused reading arrayBuffer")
+  var makeAnotherReadListener5 = function(event) {
+    r = event.target;
+    r.removeEventListener("load", makeAnotherReadListener5, false);
+    r.onload = getLoadHandler(testBinaryData,
+                              testBinaryData.length,
+                              "reused reading binary string");
+    r.readAsBinaryString(binaryFile);
+  };
+  r.addEventListener("load", makeAnotherReadListener5, false);
+  r.readAsArrayBuffer(binaryFile);
+  expectedTestCount += 2;
+
+  //Test data-URI encoding on differing file sizes
+  is(dataurldata0.length % 3, 0, "Want to test data with length % 3 == 0");
+  r = new FileReader();
+  r.onload = getLoadHandler(convertToDataURL(dataurldata0),
+                            dataurldata0.length,
+                            "dataurl reading, %3 = 0");
+  r.readAsDataURL(dataUrlFile0);
+  expectedTestCount++;
+
+  is(dataurldata1.length % 3, 1, "Want to test data with length % 3 == 1");
+  r = new FileReader();
+  r.onload = getLoadHandler(convertToDataURL(dataurldata1),
+                            dataurldata1.length,
+                            "dataurl reading, %3 = 1");
+  r.readAsDataURL(dataUrlFile1);
+  expectedTestCount++;
+
+  is(dataurldata2.length % 3, 2, "Want to test data with length % 3 == 2");
+  r = new FileReader();
+  r.onload = getLoadHandler(convertToDataURL(dataurldata2),
+                            dataurldata2.length,
+                            "dataurl reading, %3 = 2");
+  r.readAsDataURL(dataUrlFile2),
+  expectedTestCount++;
+
+
+  // Test abort()
+  var abortHasRun = false;
+  var loadEndHasRun = false;
+  r = new FileReader();
+  r.onabort = function (event) {
+    is(abortHasRun, false, "abort should only fire once");
+    is(loadEndHasRun, false, "loadend shouldn't have fired yet");
+    abortHasRun = true;
+    is(event.target.readyState, FileReader.DONE, "should be DONE while firing onabort");
+    is(event.target.error.name, "AbortError", "error set to AbortError for aborted reads");
+    is(event.target.result, null, "file data should be null on aborted reads");
+  }
+  r.onloadend = function (event) {
+    is(abortHasRun, true, "abort should fire before loadend");
+    is(loadEndHasRun, false, "loadend should only fire once");
+    loadEndHasRun = true;
+    is(event.target.readyState, FileReader.DONE, "should be DONE while firing onabort");
+    is(event.target.error.name, "AbortError", "error set to AbortError for aborted reads");
+    is(event.target.result, null, "file data should be null on aborted reads");
+  }
+  r.onload = function() { ok(false, "load should not fire for aborted reads") };
+  r.onerror = function() { ok(false, "error should not fire for aborted reads") };
+  r.onprogress = function() { ok(false, "progress should not fire for aborted reads") };
+  var abortThrew = false;
+  try {
+    r.abort();
+  } catch(e) {
+    abortThrew = true;
+  }
+  is(abortThrew, true, "abort() must throw if not loading");
+  is(abortHasRun, false, "abort() is a no-op unless loading");
+  r.readAsText(asciiFile);
+  r.abort();
+  is(abortHasRun, true, "abort should fire sync");
+  is(loadEndHasRun, true, "loadend should fire sync");
+
+  // Test calling readAsX to cause abort()
+  var reuseAbortHasRun = false;
+  r = new FileReader();
+  r.onabort = function (event) {
+    is(reuseAbortHasRun, false, "abort should only fire once");
+    reuseAbortHasRun = true;
+    is(event.target.readyState, FileReader.DONE, "should be DONE while firing onabort");
+    is(event.target.error.name, "AbortError", "error set to AbortError for aborted reads");
+    is(event.target.result, null, "file data should be null on aborted reads");
+  }
+  r.onload = function() { ok(false, "load should not fire for aborted reads") };
+  var abortThrew = false;
+  try {
+    r.abort();
+  } catch(e) {
+    abortThrew = true;
+  }
+  is(abortThrew, true, "abort() must throw if not loading");
+  is(reuseAbortHasRun, false, "abort() is a no-op unless loading");
+  r.readAsText(asciiFile);
+  r.readAsText(asciiFile);
+  is(reuseAbortHasRun, true, "abort should fire sync");
+  r.onload = getLoadHandler(testASCIIData, testASCIIData.length, "reuse-as-abort reading");
+  expectedTestCount++;
+
+
+  // Test reading from nonexistent files
+  r = new FileReader();
+  var didThrow = false;
+  r.onerror = function (event) {
+    is(event.target.readyState, FileReader.DONE, "should be DONE while firing onerror");
+    is(event.target.error.name, "NotFoundError", "error set to NotFoundError for nonexistent files");
+    is(event.target.result, null, "file data should be null on aborted reads");
+    testHasRun();
+  };
+  r.onload = function (event) {
+    is(false, "nonexistent file shouldn't load! (FIXME: bug 1122788)");
+    testHasRun();
+  };
+  try {
+    r.readAsDataURL(nonExistingFile);
+    expectedTestCount++;
+  } catch(ex) {
+    didThrow = true;
+  }
+  // Once this test passes, we should test that onerror gets called and
+  // that the FileReader object is in the right state during that call.
+  is(didThrow, false, "shouldn't throw when opening nonexistent file, should fire error instead");
+
+
+  function getLoadHandler(expectedResult, expectedLength, testName) {
+    return function (event) {
+      is(event.target.readyState, FileReader.DONE,
+         "readyState in test " + testName);
+      is(event.target.error, null,
+         "no error in test " + testName);
+      is(event.target.result, expectedResult,
+         "result in test " + testName);
+      is(event.lengthComputable, true,
+         "lengthComputable in test " + testName);
+      is(event.loaded, expectedLength,
+         "loaded in test " + testName);
+      is(event.total, expectedLength,
+         "total in test " + testName);
+      testHasRun();
+    }
+  }
+
+  function getLoadHandlerForArrayBuffer(expectedResult, expectedLength, testName) {
+    return function (event) {
+      is(event.target.readyState, FileReader.DONE,
+         "readyState in test " + testName);
+      is(event.target.error, null,
+         "no error in test " +  testName);
+      is(event.lengthComputable, true,
+         "lengthComputable in test " + testName);
+      is(event.loaded, expectedLength,
+         "loaded in test " + testName);
+      is(event.total, expectedLength,
+         "total in test " + testName);
+      is(event.target.result.byteLength, expectedLength,
+         "array buffer size in test " + testName);
+      var u8v = new Uint8Array(event.target.result);
+      is(String.fromCharCode.apply(String, u8v), expectedResult,
+         "array buffer contents in test " + testName);
+      u8v = null;
+      is(event.target.result.byteLength, expectedLength,
+         "array buffer size after gc in test " + testName);
+      u8v = new Uint8Array(event.target.result);
+      is(String.fromCharCode.apply(String, u8v), expectedResult,
+         "array buffer contents after gc in test " + testName);
+      testHasRun();
+    }
+  }
+
+  function testHasRun() {
+    //alert(testRanCounter);
+    ++testRanCounter;
+    if (testRanCounter == expectedTestCount) {
+      is(testSetupFinished, true, "test setup should have finished; check for exceptions");
+      is(onloadHasRunText, true, "onload text should have fired by now");
+      is(onloadHasRunBinary, true, "onload binary should have fired by now");
+      finish();
+    }
+  }
+
+  testSetupFinished = true;
+}