test: Add tests for the navbar component

src/components/__tests__/NavBarTest.spec.ts

+    import { mount, VueWrapper } from '@vue/test-utils';
+    import NavBar from '@/components/NavBarComponent.vue';
+    import router from '@/router';
+    import { createPinia, setActivePinia } from 'pinia';
+    import { describe, it, expect, beforeEach, vi } from 'vitest';
+
+    vi.stubGlobal('scrollTo', vi.fn());
+
+    describe('NavBar Routing', () => {
+    let wrapper: VueWrapper<any>;
+
+    beforeEach(async () => {
+        const pinia = createPinia();
+        setActivePinia(pinia);
+
+        wrapper = mount(NavBar, {
+        global: {
+            plugins: [router, pinia]
+        }
+        });
+        
+        await router.push('/');
+        await router.isReady();
+    });
+
+    it('renders without errors', () => {
+        expect(wrapper.exists()).toBe(true);
+    });
+
+    it('displays correct active route for home link on full screen', async () => {
+        global.innerWidth = 1200;
+        await router.push('/hjem');
+        await router.isReady();
+    
+        expect(wrapper.find('.router-link-exact-active').exists()).toBe(true);
+    });
+
+    it('displays correct active route for goals link on full screen', async () => {
+        global.innerWidth = 1200;
+
+        await router.push('/sparemaal');
+        await router.isReady();
+        expect(wrapper.find('.router-link-exact-active').exists()).toBe(true);
+    });
+
+    it('displays correct active route for challenges link on full screen', async () => {
+        global.innerWidth = 1200;
+
+        await router.push('/spareutfordringer');
+        await router.isReady();
+        expect(wrapper.find('.router-link-exact-active').exists()).toBe(true);
+    });
+
+    it('displays correct active route for profile link on full screen', async () => {
+        global.innerWidth = 1200;
+
+        await router.push('/profil');
+        await router.isReady();
+        expect(wrapper.find('.router-link-exact-active').exists()).toBe(true);
+    });
+
+    it('displays correct active route for home link when the hamburger menu is open', async () => {
+        global.innerWidth = 1000;
+        wrapper.vm.hamburgerOpen = true;
+        await wrapper.vm.$nextTick();
+
+        await router.push('/hjem');
+        await router.isReady();
+        expect(wrapper.find('.router-link-exact-active').exists()).toBe(true);
+    });
+
+    it('displays correct active route for goals link when the hamburger menu is open', async () => {
+        global.innerWidth = 1000;
+        wrapper.vm.hamburgerOpen = true;
+        await wrapper.vm.$nextTick();
+
+        await router.push('/sparemaal');
+        await router.isReady();
+        expect(wrapper.find('.router-link-exact-active').exists()).toBe(true);
+    });
+
+    it('displays correct active route for challenges link when the hamburger menu is open', async () => {
+        global.innerWidth = 1000;
+        wrapper.vm.hamburgerOpen = true;
+        await wrapper.vm.$nextTick();
+
+        await router.push('/spareutfordringer');
+        await router.isReady();
+        expect(wrapper.find('.router-link-exact-active').exists()).toBe(true);
+    });
+
+    it('displays correct active route for profile link when the hamburger menu is open', async () => {
+        global.innerWidth = 1000;
+        wrapper.vm.hamburgerOpen = true;
+        await wrapper.vm.$nextTick();
+
+        await router.push('/profil');
+        await router.isReady();
+        expect(wrapper.find('.router-link-exact-active').exists()).toBe(true);
+    });
+});