1 files changed, 105 insertions, 0 deletions
diff --git a/js/xpconnect/tests/unit/component-file.js b/js/xpconnect/tests/unit/component-file.js
new file mode 100644
index 0000000000..f78edfb3fc
--- /dev/null
+++ b/js/xpconnect/tests/unit/component-file.js
@@ -0,0 +1,105 @@
+/* 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(['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 FileComponent() {
+  this.wrappedJSObject = this;
+}
+FileComponent.prototype =
+{
+  doTest: function(cb) {
+    // throw if anything goes wrong
+
+    // find the current directory path
+    var file = Cc["@mozilla.org/file/directory_service;1"]
+               .getService(Ci.nsIProperties)
+               .get("CurWorkD", Ci.nsIFile);
+    file.append("xpcshell.ini");
+
+    // should be able to construct a file
+    var f1, f2;
+    Promise.all([
+      File.createFromFileName(file.path).then(f => { f1 = f; }),
+      File.createFromNsIFile(file).then(f => { f2 = f; }),
+    ])
+    .then(() => {
+      // do some tests
+      Assert.ok(f1 instanceof File, "Should be a DOM File");
+      Assert.ok(f2 instanceof File, "Should be a DOM File");
+
+      Assert.ok(f1.name == "xpcshell.ini", "Should be the right file");
+      Assert.ok(f2.name == "xpcshell.ini", "Should be the right file");
+
+      Assert.ok(f1.type == "", "Should be the right type");
+      Assert.ok(f2.type == "", "Should be the right type");
+    })
+    .then(() => {
+      var threw = false;
+      try {
+        // Needs a ctor argument
+        var f7 = new File();
+      } catch (e) {
+        threw = true;
+      }
+      Assert.ok(threw, "No ctor arguments should throw");
+
+      var threw = false;
+      try {
+        // Needs a valid ctor argument
+        var f7 = new File(Date(132131532));
+      } catch (e) {
+        threw = true;
+      }
+      Assert.ok(threw, "Passing a random object should fail");
+
+      // Directories fail
+      var dir = Cc["@mozilla.org/file/directory_service;1"]
+                  .getService(Ci.nsIProperties)
+                  .get("CurWorkD", Ci.nsIFile);
+      return File.createFromNsIFile(dir)
+    })
+    .then(() => {
+      Assert.ok(false, "Can't create a File object for a directory");
+    }, () => {
+      Assert.ok(true, "Can't create a File object for a directory");
+    })
+    .then(() => {
+      cb(true);
+    });
+  },
+
+  // nsIClassInfo + information for XPCOM registration code in
+  // ComponentUtils.jsm
+  classDescription: "File in components scope code",
+  classID: Components.ID("{da332370-91d4-464f-a730-018e14769cab}"),
+  contractID: "@mozilla.org/tests/component-file;1",
+
+  // nsIClassInfo
+  flags: 0,
+
+  interfaces: [Ci.nsIClassInfo],
+
+  getScriptableHelper: function getScriptableHelper() {
+    return null;
+  },
+
+  // nsISupports
+  QueryInterface: ChromeUtils.generateQI(["nsIClassInfo"])
+};
+
+var gComponentsArray = [FileComponent];
+this.NSGetFactory = ComponentUtils.generateNSGetFactory(gComponentsArray);