Add comprehensive test coverage for services and utilities

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

src/lib/utils/haptics.test.ts

@@ -0,0 +1,106 @@
+/**
+ * Haptics utility tests
+ */
+
+import { describe, it, expect, beforeEach, vi } from "vitest";
+import { haptic, haptics } from "./haptics";
+
+describe("haptics utility", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+    // Mock navigator.vibrate
+    Object.defineProperty(global.navigator, "vibrate", {
+      value: vi.fn(),
+      configurable: true,
+    });
+  });
+
+  describe("haptic function", () => {
+    it("should trigger vibration with light style", () => {
+      haptic("light");
+      expect(navigator.vibrate).toHaveBeenCalledWith(10);
+    });
+
+    it("should trigger vibration with medium style", () => {
+      haptic("medium");
+      expect(navigator.vibrate).toHaveBeenCalledWith(20);
+    });
+
+    it("should trigger vibration with heavy style", () => {
+      haptic("heavy");
+      expect(navigator.vibrate).toHaveBeenCalledWith(40);
+    });
+
+    it("should trigger vibration with success style", () => {
+      haptic("success");
+      expect(navigator.vibrate).toHaveBeenCalledWith([10, 50, 10]);
+    });
+
+    it("should trigger vibration with warning style", () => {
+      haptic("warning");
+      expect(navigator.vibrate).toHaveBeenCalledWith([20, 100, 20, 100, 20]);
+    });
+
+    it("should trigger vibration with error style", () => {
+      haptic("error");
+      expect(navigator.vibrate).toHaveBeenCalledWith(50);
+    });
+
+    it("should use medium style by default", () => {
+      haptic();
+      expect(navigator.vibrate).toHaveBeenCalledWith(20);
+    });
+
+    it("should handle missing vibration API gracefully", () => {
+      Object.defineProperty(global.navigator, "vibrate", {
+        value: undefined,
+        configurable: true,
+      });
+
+      expect(() => haptic()).not.toThrow();
+    });
+
+    it("should handle vibration errors gracefully", () => {
+      Object.defineProperty(global.navigator, "vibrate", {
+        value: vi.fn(() => {
+          throw new Error("Vibration blocked");
+        }),
+        configurable: true,
+      });
+
+      expect(() => haptic()).not.toThrow();
+    });
+  });
+
+  describe("haptics object", () => {
+    it("should provide tap method", () => {
+      haptics.tap();
+      expect(navigator.vibrate).toHaveBeenCalledWith(10);
+    });
+
+    it("should provide select method", () => {
+      haptics.select();
+      expect(navigator.vibrate).toHaveBeenCalledWith(20);
+    });
+
+    it("should provide success method", () => {
+      haptics.success();
+      expect(navigator.vibrate).toHaveBeenCalledWith([10, 50, 10]);
+    });
+
+    it("should provide warning method", () => {
+      haptics.warning();
+      expect(navigator.vibrate).toHaveBeenCalledWith([20, 100, 20, 100, 20]);
+    });
+
+    it("should provide error method", () => {
+      haptics.error();
+      expect(navigator.vibrate).toHaveBeenCalledWith(50);
+    });
+
+    it("should provide impact method", () => {
+      haptics.impact();
+      expect(navigator.vibrate).toHaveBeenCalledWith(40);
+    });
+  });
+});