Add test for login form

resources/assets/js/tests/components/auth/login-form.spec.js

@@ -0,0 +1,16 @@
+import LoginForm from '@/components/auth/login-form.vue'
+
+describe('components/auth/login-form', () => {
+  it('displays a form for users to log in', () => {
+    const wrapper = shallow(LoginForm)
+    expect(wrapper.findAll('form')).toHaveLength(1)
+  })
+
+  it('triggers login method when form is submitted', () => {
+    const spy = sinon.spy()
+    const wrapper = shallow(LoginForm)
+    wrapper.vm.login = spy
+    wrapper.find('form').trigger('submit')
+    expect(spy.called).toBe(true)
+  })
+})