test(auth): Add tests for AuthService and Auth validations

frontend/src/lib/validations/auth.test.ts

@@ -0,0 +1,50 @@
+import { describe, it, expect } from "vitest"
+import { loginSchema, registerSchema } from "./auth"
+
+describe("Auth Validations", () => {
+  describe("loginSchema", () => {
+    it("validates correct input", () => {
+      const result = loginSchema.safeParse({
+        email: "test@example.com",
+        password: "password123",
+      })
+      expect(result.success).toBe(true)
+    })
+
+    it("fails on invalid email", () => {
+      const result = loginSchema.safeParse({
+        email: "not-an-email",
+        password: "password123",
+      })
+      expect(result.success).toBe(false)
+    })
+
+    it("fails on short password", () => {
+      const result = loginSchema.safeParse({
+        email: "test@example.com",
+        password: "123",
+      })
+      expect(result.success).toBe(false)
+    })
+  })
+
+  describe("registerSchema", () => {
+    it("validates correct input", () => {
+      const result = registerSchema.safeParse({
+        email: "test@example.com",
+        password: "password123",
+        confirmPassword: "password123",
+      })
+      expect(result.success).toBe(true)
+    })
+
+    it("fails if passwords do not match", () => {
+      const result = registerSchema.safeParse({
+        email: "test@example.com",
+        password: "password123",
+        confirmPassword: "different",
+      })
+      expect(result.success).toBe(false)
+    })
+  })
+})