Port Mojo's sample_service.cc to JavaScript

mojo/public/bindings/js/codec_unittests.js

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 define([
     "gtest",
     "mojo/public/bindings/js/codec",
-    "mojo/public/bindings/js/test/sample_service"
+    "mojo/public/bindings/sample/mojom/sample_service"
   ], function(gtest, codec, sample) {
   testBar();
   testFoo();
+  testAlign();
   this.result = "PASS";
 
   function barMatches(bar, expected) {
     gtest.expectEqual(bar.alpha, expected.alpha,
         "bar.alpha is " + bar.alpha);
     gtest.expectEqual(bar.beta, expected.beta,
         "bar.beta is " + bar.beta);
     gtest.expectEqual(bar.gamma, expected.gamma,
         "bar.gamma is " + bar.gamma);
   }
@@ skipping 132 matching lines @@
     var actualExtraBarsJSON = JSON.stringify(foo2.extra_bars);
     var expectedExtraBarsJSON = JSON.stringify(foo.extra_bars);
     gtest.expectEqual(actualExtraBarsJSON, expectedExtraBarsJSON,
         actualExtraBarsJSON);
 
     gtest.expectEqual(foo2.name, foo.name,
         "foo2.name is " + foo2.name);
 
     equalsArray(foo2.files, foo.files, "foo2.files");
   }
+
+  function testAlign() {
+    var aligned = [
+      0, // 0
+      8, // 1
+      8, // 2
+      8, // 3
+      8, // 4
+      8, // 5
+      8, // 6
+      8, // 7
+      8, // 8
+      16, // 9
+      16, // 10
+      16, // 11
+      16, // 12
+      16, // 13
+      16, // 14
+      16, // 15
+      16, // 16
+      24, // 17
+      24, // 18
+      24, // 19
+      24, // 20
+    ];
+    for (var i = 0; i < aligned.length; ++i) {
+      gtest.expectEqual(codec.align(i), aligned[i],
+          "codec.align(" + i + ") is " + codec.align(i));
+    }
+  }
 });