1 files changed, 99 insertions, 0 deletions
diff --git a/dom/base/test/file_bug945152_worker.js b/dom/base/test/file_bug945152_worker.js
new file mode 100644
index 0000000000..9664045b6d
--- /dev/null
+++ b/dom/base/test/file_bug945152_worker.js
@@ -0,0 +1,99 @@
+var gData1 = "TEST_DATA_1:ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+var gData2 = "TEST_DATA_2:1234567890";
+var gPaddingChar = ".";
+var gPaddingSize = 10000;
+var gPadding = "";
+
+for (var i = 0; i < gPaddingSize; i++) {
+  gPadding += gPaddingChar;
+}
+
+function ok(a, msg) {
+  postMessage({ type: "status", status: !!a, msg });
+}
+
+function is(a, b, msg) {
+  postMessage({ type: "status", status: a === b, msg });
+}
+
+function checkData(response, data_head, cb) {
+  ok(response, "Data is non-null");
+  var str = String.fromCharCode.apply(null, new Uint8Array(response));
+  ok(str.length == data_head.length + gPaddingSize, "Data size is correct");
+  ok(str.slice(0, data_head.length) == data_head, "Data head is correct");
+  ok(str.slice(data_head.length) == gPadding, "Data padding is correct");
+  cb();
+}
+
+self.onmessage = function onmessage(event) {
+  var jar = event.data;
+
+  function makeJarURL(entry) {
+    return "jar:" + jar + "!/" + entry;
+  }
+
+  function test_mapped_sync() {
+    var xhr = new XMLHttpRequest({ mozAnon: true, mozSystem: true });
+    xhr.open("GET", makeJarURL("data_1.txt"), false);
+    xhr.responseType = "arraybuffer";
+    xhr.send();
+    if (xhr.status) {
+      ok(xhr.status == 200, "Status is 200");
+      var ct = xhr.getResponseHeader("Content-Type");
+      ok(ct.includes("mem-mapped"), "Data is memory-mapped");
+      checkData(xhr.response, gData1, runTests);
+    }
+  }
+
+  function test_mapped_async() {
+    var xhr = new XMLHttpRequest({ mozAnon: true, mozSystem: true });
+    xhr.open("GET", makeJarURL("data_1.txt"));
+    xhr.responseType = "arraybuffer";
+    xhr.onreadystatechange = function () {
+      if (xhr.readyState !== xhr.DONE) {
+        return;
+      }
+      if (xhr.status) {
+        ok(xhr.status == 200, "Status is 200");
+        var ct = xhr.getResponseHeader("Content-Type");
+        ok(ct.includes("mem-mapped"), "Data is memory-mapped");
+        checkData(xhr.response, gData1, runTests);
+      }
+    };
+    xhr.send();
+  }
+
+  // Make sure array buffer retrieved from compressed file in package is
+  // handled by memory allocation instead of memory mapping.
+  function test_non_mapped() {
+    var xhr = new XMLHttpRequest({ mozAnon: true, mozSystem: true });
+    xhr.open("GET", makeJarURL("data_2.txt"));
+    xhr.responseType = "arraybuffer";
+    xhr.onreadystatechange = function () {
+      if (xhr.readyState !== xhr.DONE) {
+        return;
+      }
+      if (xhr.status) {
+        ok(xhr.status == 200, "Status is 200");
+        var ct = xhr.getResponseHeader("Content-Type");
+        ok(!ct.includes("mem-mapped"), "Data is not memory-mapped");
+        checkData(xhr.response, gData2, runTests);
+      }
+    };
+    xhr.send();
+  }
+
+  var tests = [test_mapped_sync, test_mapped_async, test_non_mapped];
+
+  function runTests() {
+    if (!tests.length) {
+      postMessage({ type: "finish" });
+      return;
+    }
+
+    var test = tests.shift();
+    test();
+  }
+
+  runTests();
+};