1 files changed, 74 insertions, 0 deletions
diff --git a/js/xpconnect/tests/unit/component-blob.js b/js/xpconnect/tests/unit/component-blob.js
new file mode 100644
index 0000000000..9224246dac
--- /dev/null
+++ b/js/xpconnect/tests/unit/component-blob.js
@@ -0,0 +1,74 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+const {ComponentUtils} = ChromeUtils.import("resource://gre/modules/ComponentUtils.jsm");
+Cu.importGlobalProperties(['Blob', 'File']);
+
+const Assert = {
+  ok(cond, text) {
+    // we don't have the test harness' utilities in this scope, so we need this
+    // little helper. In the failure case, the exception is propagated to the
+    // caller in the main run_test() function, and the test fails.
+    if (!cond)
+      throw "Failed check: " + text;
+  }
+};
+
+function BlobComponent() {
+  this.wrappedJSObject = this;
+}
+BlobComponent.prototype =
+{
+  doTest: function() {
+    // throw if anything goes wrong
+    let testContent = "<a id=\"a\"><b id=\"b\">hey!<\/b><\/a>";
+    // should be able to construct a file
+    var f1 = new Blob([testContent], {"type" : "text/xml"});
+
+    // do some tests
+    Assert.ok(f1 instanceof Blob, "Should be a DOM Blob");
+
+    Assert.ok(!(f1 instanceof File), "Should not be a DOM File");
+
+    Assert.ok(f1.type == "text/xml", "Wrong type");
+
+    Assert.ok(f1.size == testContent.length, "Wrong content size");
+
+    var f2 = new Blob();
+    Assert.ok(f2.size == 0, "Wrong size");
+    Assert.ok(f2.type == "", "Wrong type");
+
+    var threw = false;
+    try {
+      // Needs a valid ctor argument
+      var f2 = new Blob(Date(132131532));
+    } catch (e) {
+      threw = true;
+    }
+    Assert.ok(threw, "Passing a random object should fail");
+
+    return true;
+  },
+
+  // nsIClassInfo + information for XPCOM registration code in
+  // ComponentUtils.jsm
+  classDescription: "Blob in components scope code",
+  classID: Components.ID("{06215993-a3c2-41e3-bdfd-0a3a2cc0b65c}"),
+  contractID: "@mozilla.org/tests/component-blob;1",
+
+  // nsIClassInfo
+  flags: 0,
+
+  interfaces: [Ci.nsIClassInfo],
+
+  getScriptableHelper: function getScriptableHelper() {
+    return null;
+  },
+
+  // nsISupports
+  QueryInterface: ChromeUtils.generateQI(["nsIClassInfo"])
+};
+
+var gComponentsArray = [BlobComponent];
+this.NSGetFactory = ComponentUtils.generateNSGetFactory(gComponentsArray);