Palette creator can save palettes to local storage

test/js/utils/UuidTest.js

@@ -0,0 +1,27 @@
+describe("UUID Generator", function() {
+
+  beforeEach(function() {});
+  afterEach(function() {});
+
+  it("returns valid uuids", function() {
+    // when
+
+    // then
+    var uuid1 = pskl.utils.Uuid.generate();
+    var uuid2 = pskl.utils.Uuid.generate();
+
+    // verify
+    expect(typeof uuid1).toBe("string");
+    expect(uuid1.length).toBe(36);
+    var splits = uuid1.split('-');
+    expect(splits.length).toBe(5);
+
+    expect(splits[0].length).toBe(8);
+    expect(splits[1].length).toBe(4);
+    expect(splits[2].length).toBe(4);
+    expect(splits[3].length).toBe(4);
+    expect(splits[4].length).toBe(12);
+
+    expect(uuid1).not.toBe(uuid2);
+  });
+});