1 files changed, 54 insertions, 0 deletions
diff --git a/addon-sdk/source/test/commonjs-test-adapter/asserts.js b/addon-sdk/source/test/commonjs-test-adapter/asserts.js
new file mode 100644
index 000000000..c0d0e1ca5
--- /dev/null
+++ b/addon-sdk/source/test/commonjs-test-adapter/asserts.js
@@ -0,0 +1,54 @@
+/* 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/. */
+
+"use strict";
+
+const AssertBase = require("sdk/test/assert").Assert;
+
+/**
+ * Generates custom assertion constructors that may be bundled with a test
+ * suite.
+ * @params {String}
+ *    names of assertion function to be added to the generated Assert.
+ */
+function Assert() {
+  let assertDescriptor = {};
+  Array.forEach(arguments, function(name) {
+    assertDescriptor[name] = { value: function(message) {
+      this.pass(message);
+    }}
+  });
+
+  return function Assert() {
+    return Object.create(AssertBase.apply(null, arguments), assertDescriptor);
+  };
+}
+
+exports["test suite"] = {
+  Assert: Assert("foo"),
+  "test that custom assertor is passed to test function": function(assert) {
+    assert.ok("foo" in assert, "custom assertion function `foo` is defined");
+    assert.foo("custom assertion function `foo` is called");
+  },
+  "test sub suite": {
+    "test that `Assert` is inherited by sub suits": function(assert) {
+      assert.ok("foo" in assert, "assertion function `foo` is not defined");
+    },
+    "test sub sub suite": {
+      Assert: Assert("bar"),
+      "test that custom assertor is passed to test function": function(assert) {
+        assert.ok("bar" in assert,
+                  "custom assertion function `bar` is defined");
+        assert.bar("custom assertion function `bar` is called");
+      },
+      "test that `Assert` is not inherited by sub sub suits": function(assert) {
+        assert.ok(!("foo" in assert),
+                  "assertion function `foo` is not defined");
+      }
+    }
+  }
+};
+
+if (module == require.main)
+  require("test").run(exports);