Adds js/unit_tests.ts (#448)

js/testing/util_test.ts

@@ -0,0 +1,40 @@
+/*!
+   Copyright 2018 Propel http://propel.site/.  All rights reserved.
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+ */
+
+import { test } from "./testing.ts";
+import { assert } from "./util.ts";
+import * as util from "./util.ts";
+
+test(async function util_equal() {
+  assert(util.equal("world", "world"));
+  assert(!util.equal("hello", "world"));
+  assert(util.equal(5, 5));
+  assert(!util.equal(5, 6));
+  assert(util.equal(NaN, NaN));
+  assert(util.equal({ hello: "world" }, { hello: "world" }));
+  assert(!util.equal({ world: "hello" }, { hello: "world" }));
+  assert(
+    util.equal(
+      { hello: "world", hi: { there: "everyone" } },
+      { hello: "world", hi: { there: "everyone" } }
+    )
+  );
+  assert(
+    !util.equal(
+      { hello: "world", hi: { there: "everyone" } },
+      { hello: "world", hi: { there: "everyone else" } }
+    )
+  );
+});