feat(MED-161): add jest for service tests

jest.setup.js

@@ -0,0 +1,59 @@
+// Jest setup file for global test configuration
+
+// Mock Next.js router
+jest.mock('next/router', () => ({
+  useRouter() {
+    return {
+      route: '/',
+      pathname: '/',
+      query: {},
+      asPath: '/',
+      push: jest.fn(),
+      pop: jest.fn(),
+      reload: jest.fn(),
+      back: jest.fn(),
+      prefetch: jest.fn().mockResolvedValue(undefined),
+      beforePopState: jest.fn(),
+      events: {
+        on: jest.fn(),
+        off: jest.fn(),
+        emit: jest.fn(),
+      },
+      isFallback: false,
+    };
+  },
+}));
+
+// Mock Next.js navigation
+jest.mock('next/navigation', () => ({
+  useRouter() {
+    return {
+      push: jest.fn(),
+      replace: jest.fn(),
+      prefetch: jest.fn(),
+      back: jest.fn(),
+      forward: jest.fn(),
+      refresh: jest.fn(),
+    };
+  },
+  useSearchParams() {
+    return new URLSearchParams();
+  },
+  usePathname() {
+    return '/';
+  },
+}));
+
+// Global test utilities
+global.console = {
+  ...console,
+  // Suppress console.log in tests unless needed
+  log: jest.fn(),
+  debug: jest.fn(),
+  info: jest.fn(),
+  warn: jest.fn(),
+  error: jest.fn(),
+};
+
+// Set up environment variables for tests
+process.env.NODE_ENV = 'test';