1 files changed, 96 insertions, 0 deletions
diff --git a/toolkit/modules/tests/xpcshell/test_ObjectUtils.js b/toolkit/modules/tests/xpcshell/test_ObjectUtils.js
new file mode 100644
index 000000000..9aef3e907
--- /dev/null
+++ b/toolkit/modules/tests/xpcshell/test_ObjectUtils.js
@@ -0,0 +1,96 @@
+Components.utils.import("resource://gre/modules/ObjectUtils.jsm");
+
+function run_test() {
+  run_next_test();
+}
+
+add_task(function* test_deepEqual() {
+  let deepEqual = ObjectUtils.deepEqual.bind(ObjectUtils);
+  // CommonJS 7.2
+  Assert.ok(deepEqual(new Date(2000, 3, 14), new Date(2000, 3, 14)), "deepEqual date");
+  Assert.ok(deepEqual(new Date(NaN), new Date(NaN)), "deepEqual invalid dates");
+
+  Assert.ok(!deepEqual(new Date(), new Date(2000, 3, 14)), "deepEqual date");
+
+  // 7.3
+  Assert.ok(deepEqual(/a/, /a/));
+  Assert.ok(deepEqual(/a/g, /a/g));
+  Assert.ok(deepEqual(/a/i, /a/i));
+  Assert.ok(deepEqual(/a/m, /a/m));
+  Assert.ok(deepEqual(/a/igm, /a/igm));
+  Assert.ok(!deepEqual(/ab/, /a/));
+  Assert.ok(!deepEqual(/a/g, /a/));
+  Assert.ok(!deepEqual(/a/i, /a/));
+  Assert.ok(!deepEqual(/a/m, /a/));
+  Assert.ok(!deepEqual(/a/igm, /a/im));
+
+  let re1 = /a/;
+  re1.lastIndex = 3;
+  Assert.ok(!deepEqual(re1, /a/));
+
+  // 7.4
+  Assert.ok(deepEqual(4, "4"), "deepEqual == check");
+  Assert.ok(deepEqual(true, 1), "deepEqual == check");
+  Assert.ok(!deepEqual(4, "5"), "deepEqual == check");
+
+  // 7.5
+  // having the same number of owned properties && the same set of keys
+  Assert.ok(deepEqual({a: 4}, {a: 4}));
+  Assert.ok(deepEqual({a: 4, b: "2"}, {a: 4, b: "2"}));
+  Assert.ok(deepEqual([4], ["4"]));
+  Assert.ok(!deepEqual({a: 4}, {a: 4, b: true}));
+  Assert.ok(deepEqual(["a"], {0: "a"}));
+
+  let a1 = [1, 2, 3];
+  let a2 = [1, 2, 3];
+  a1.a = "test";
+  a1.b = true;
+  a2.b = true;
+  a2.a = "test";
+  Assert.ok(!deepEqual(Object.keys(a1), Object.keys(a2)));
+  Assert.ok(deepEqual(a1, a2));
+
+  let nbRoot = {
+    toString: function() { return this.first + " " + this.last; }
+  };
+
+  function nameBuilder(first, last) {
+    this.first = first;
+    this.last = last;
+    return this;
+  }
+  nameBuilder.prototype = nbRoot;
+
+  function nameBuilder2(first, last) {
+    this.first = first;
+    this.last = last;
+    return this;
+  }
+  nameBuilder2.prototype = nbRoot;
+
+  let nb1 = new nameBuilder("Ryan", "Dahl");
+  let nb2 = new nameBuilder2("Ryan", "Dahl");
+
+  Assert.ok(deepEqual(nb1, nb2));
+
+  nameBuilder2.prototype = Object;
+  nb2 = new nameBuilder2("Ryan", "Dahl");
+  Assert.ok(!deepEqual(nb1, nb2));
+
+  // String literal + object
+  Assert.ok(!deepEqual("a", {}));
+
+  // Make sure deepEqual doesn't loop forever on circular refs
+
+  let b = {};
+  b.b = b;
+
+  let c = {};
+  c.b = c;
+
+  try {
+    Assert.ok(!deepEqual(b, c));
+  } catch (e) {
+    Assert.ok(true, "Didn't recurse infinitely.");
+  }
+});