Release 1.3.0

packages/homehub_app/tests/lib/clock.spec.js

@@ -0,0 +1,86 @@
+import * as luxon from 'luxon';
+
+import * as ClockLib from 'src/lib/clock';
+
+describe('src/lib/clock', () => {
+  describe('Clock', () => {
+    let fakeDateTime = null;
+
+    beforeEach(() => {
+      fakeDateTime = luxon.DateTime.local(1987, 10, 3, 8, 0, 1, 200);
+
+      spyOn(window, 'setTimeout').and.returnValue(123);
+      spyOn(window, 'clearTimeout');
+      spyOn(luxon.DateTime, 'local').and.returnValue(fakeDateTime);
+    });
+
+    describe('constructor', () => {
+      it('initializes an instance', () => {
+        const clock = new ClockLib.Clock();
+
+        expect(clock.now).toEqual(fakeDateTime);
+        expect(clock.timeout).toBe(null);
+      });
+    });
+
+    describe('clearTimeout', () => {
+      it('is a noop is timeout is null', () => {
+        const clock = new ClockLib.Clock();
+
+        clock.clearTimeout();
+
+        expect(window.clearTimeout).not.toHaveBeenCalled();
+      });
+
+      it('clears the timeout', () => {
+        const clock = new ClockLib.Clock();
+        clock.timeout = 123;
+
+        clock.clearTimeout();
+
+        expect(window.clearTimeout).toHaveBeenCalledWith(123);
+        expect(clock.timeout).toBe(null);
+      });
+    });
+
+    describe('onTimeout', () => {
+      it('handles the clock timeout', () => {
+        const newFakeDateTime = fakeDateTime.plus({minutes: 1});
+        luxon.DateTime.local.and.returnValue(newFakeDateTime);
+
+        const clock = new ClockLib.Clock();
+        spyOn(clock, 'clearTimeout');
+        spyOn(clock, 'fireEvent');
+        spyOn(clock, 'start');
+
+        clock.onTimeout();
+
+        expect(clock.now).toEqual(newFakeDateTime);
+        expect(clock.clearTimeout).toHaveBeenCalled();
+        expect(clock.fireEvent).toHaveBeenCalledWith('tick');
+        expect(clock.start).toHaveBeenCalled();
+      });
+    });
+
+    describe('start', () => {
+      it('starts the clock', () => {
+        const clock = new ClockLib.Clock();
+
+        clock.start();
+
+        expect(window.setTimeout).toHaveBeenCalledWith(clock.onTimeout, 58810);
+      });
+    });
+
+    describe('stop', () => {
+      it('stops the clock', () => {
+        const clock = new ClockLib.Clock();
+        spyOn(clock, 'clearTimeout');
+
+        clock.stop();
+
+        expect(clock.clearTimeout).toHaveBeenCalled();
+      });
+    });
+  });
+});