refactor

core/racing/domain/value-objects/JoinedAt.test.ts

@@ -0,0 +1,38 @@
+import { describe, it, expect } from 'vitest';
+import { JoinedAt } from './JoinedAt';
+
+describe('JoinedAt', () => {
+  it('should create a joined date', () => {
+    const past = new Date('2020-01-01');
+    const joined = JoinedAt.create(past);
+    expect(joined.toDate()).toEqual(past);
+  });
+
+  it('should throw on future date', () => {
+    const future = new Date();
+    future.setFullYear(future.getFullYear() + 1);
+    expect(() => JoinedAt.create(future)).toThrow('Joined date cannot be in the future');
+  });
+
+  it('should allow current date', () => {
+    const now = new Date();
+    const joined = JoinedAt.create(now);
+    expect(joined.toDate().getTime()).toBeCloseTo(now.getTime(), -3); // close enough
+  });
+
+  it('should equal same date', () => {
+    const d1 = new Date('2020-01-01');
+    const d2 = new Date('2020-01-01');
+    const j1 = JoinedAt.create(d1);
+    const j2 = JoinedAt.create(d2);
+    expect(j1.equals(j2)).toBe(true);
+  });
+
+  it('should not equal different date', () => {
+    const d1 = new Date('2020-01-01');
+    const d2 = new Date('2020-01-02');
+    const j1 = JoinedAt.create(d1);
+    const j2 = JoinedAt.create(d2);
+    expect(j1.equals(j2)).toBe(false);
+  });
+});