first commmit

tests/common/TimeMgr.test.ts

@@ -0,0 +1,58 @@
+import { TimeMgr } from '@common/TimeMgr';
+
+describe('TimeMgr', () => {
+    let tm: TimeMgr;
+    beforeEach(() => {
+        tm = new TimeMgr();
+    });
+
+    it('advances both clocks at timeScale 1', () => {
+        tm.update(1);
+        tm.update(0.5);
+        expect(tm.gameTime).toBeCloseTo(1.5);
+        expect(tm.realTime).toBeCloseTo(1.5);
+    });
+
+    it('freezes gameTime when paused but keeps realTime ticking', () => {
+        tm.pause();
+        tm.update(1);
+        expect(tm.gameTime).toBe(0);
+        expect(tm.realTime).toBe(1);
+        tm.resume();
+        tm.update(0.5);
+        expect(tm.gameTime).toBeCloseTo(0.5);
+        expect(tm.realTime).toBeCloseTo(1.5);
+    });
+
+    it('honors timeScale for slow-mo', () => {
+        tm.setTimeScale(0.5);
+        tm.update(2);
+        expect(tm.gameTime).toBeCloseTo(1);
+        expect(tm.realTime).toBe(2);
+    });
+
+    it('clamps negative timeScale to 0', () => {
+        tm.setTimeScale(-3);
+        expect(tm.timeScale).toBe(0);
+        tm.update(10);
+        expect(tm.gameTime).toBe(0);
+    });
+
+    it('scaledDelta() reflects pause and timeScale', () => {
+        tm.setTimeScale(2);
+        expect(tm.scaledDelta(0.1)).toBeCloseTo(0.2);
+        tm.pause();
+        expect(tm.scaledDelta(0.1)).toBe(0);
+    });
+
+    it('reset() zeros everything', () => {
+        tm.update(1);
+        tm.pause();
+        tm.setTimeScale(0.2);
+        tm.reset();
+        expect(tm.gameTime).toBe(0);
+        expect(tm.realTime).toBe(0);
+        expect(tm.timeScale).toBe(1);
+        expect(tm.paused).toBe(false);
+    });
+});