refactor

core/racing/domain/entities/result/IncidentCount.test.ts

@@ -0,0 +1,45 @@
+import { IncidentCount } from './IncidentCount';
+import { RacingDomainValidationError } from '../../errors/RacingDomainError';
+
+describe('IncidentCount', () => {
+  describe('create', () => {
+    it('should create an IncidentCount with valid non-negative integer', () => {
+      const incidentCount = IncidentCount.create(5);
+      expect(incidentCount.toNumber()).toBe(5);
+    });
+
+    it('should create with zero', () => {
+      const incidentCount = IncidentCount.create(0);
+      expect(incidentCount.toNumber()).toBe(0);
+    });
+
+    it('should throw error for negative number', () => {
+      expect(() => IncidentCount.create(-1)).toThrow(RacingDomainValidationError);
+    });
+
+    it('should throw error for non-integer', () => {
+      expect(() => IncidentCount.create(1.5)).toThrow(RacingDomainValidationError);
+    });
+  });
+
+  describe('toNumber', () => {
+    it('should return the number value', () => {
+      const incidentCount = IncidentCount.create(3);
+      expect(incidentCount.toNumber()).toBe(3);
+    });
+  });
+
+  describe('equals', () => {
+    it('should return true for equal incident counts', () => {
+      const ic1 = IncidentCount.create(2);
+      const ic2 = IncidentCount.create(2);
+      expect(ic1.equals(ic2)).toBe(true);
+    });
+
+    it('should return false for different incident counts', () => {
+      const ic1 = IncidentCount.create(2);
+      const ic2 = IncidentCount.create(3);
+      expect(ic1.equals(ic2)).toBe(false);
+    });
+  });
+});