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import Vue, { nextTick } from 'vue';
import VueApollo from 'vue-apollo';
import { GlButton } from '@gitlab/ui';
import { shallowMount } from '@vue/test-utils';
import createMockApollo from 'helpers/mock_apollo_helper';
import SourceEditorToolbarButton from '~/editor/components/source_editor_toolbar_button.vue';
import getToolbarItemQuery from '~/editor/graphql/get_item.query.graphql';
import updateToolbarItemMutation from '~/editor/graphql/update_item.mutation.graphql';
import { buildButton } from './helpers';
Vue.use(VueApollo);
describe('Source Editor Toolbar button', () => {
let wrapper;
let mockApollo;
const defaultBtn = buildButton();
const findButton = () => wrapper.findComponent(GlButton);
const createComponentWithApollo = ({ propsData } = {}) => {
mockApollo = createMockApollo();
mockApollo.clients.defaultClient.cache.writeQuery({
query: getToolbarItemQuery,
variables: { id: defaultBtn.id },
data: {
item: {
...defaultBtn,
},
},
});
wrapper = shallowMount(SourceEditorToolbarButton, {
propsData,
apolloProvider: mockApollo,
});
};
afterEach(() => {
wrapper.destroy();
mockApollo = null;
});
describe('default', () => {
const defaultProps = {
category: 'primary',
variant: 'default',
};
const customProps = {
category: 'secondary',
variant: 'info',
};
it('renders a default button without props', async () => {
createComponentWithApollo();
const btn = findButton();
expect(btn.exists()).toBe(true);
expect(btn.props()).toMatchObject(defaultProps);
});
it('renders a button based on the props passed', async () => {
createComponentWithApollo({
propsData: {
button: customProps,
},
});
const btn = findButton();
expect(btn.props()).toMatchObject(customProps);
});
});
describe('button updates', () => {
it('it properly updates button on Apollo cache update', async () => {
const { id } = defaultBtn;
createComponentWithApollo({
propsData: {
button: {
id,
},
},
});
expect(findButton().props('selected')).toBe(false);
mockApollo.clients.defaultClient.cache.writeQuery({
query: getToolbarItemQuery,
variables: { id },
data: {
item: {
...defaultBtn,
selected: true,
},
},
});
jest.runOnlyPendingTimers();
await nextTick();
expect(findButton().props('selected')).toBe(true);
});
});
describe('click handler', () => {
it('fires the click handler on the button when available', () => {
const spy = jest.fn();
createComponentWithApollo({
propsData: {
button: {
onClick: spy,
},
},
});
expect(spy).not.toHaveBeenCalled();
findButton().vm.$emit('click');
expect(spy).toHaveBeenCalled();
});
it('emits the "click" event', () => {
createComponentWithApollo();
jest.spyOn(wrapper.vm, '$emit');
expect(wrapper.vm.$emit).not.toHaveBeenCalled();
findButton().vm.$emit('click');
expect(wrapper.vm.$emit).toHaveBeenCalledWith('click');
});
it('triggers the mutation exposing the changed "selected" prop', () => {
const { id } = defaultBtn;
createComponentWithApollo({
propsData: {
button: {
id,
},
},
});
jest.spyOn(wrapper.vm.$apollo, 'mutate');
expect(wrapper.vm.$apollo.mutate).not.toHaveBeenCalled();
findButton().vm.$emit('click');
expect(wrapper.vm.$apollo.mutate).toHaveBeenCalledWith({
mutation: updateToolbarItemMutation,
variables: {
id,
propsToUpdate: {
selected: true,
},
},
});
});
});
});
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