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import { shallowMount } from '@vue/test-utils';
import Vue from 'vue';
// eslint-disable-next-line no-restricted-imports
import Vuex from 'vuex';
import { throttle } from 'lodash';
import DiffView from '~/diffs/components/diff_view.vue';
jest.mock('lodash/throttle', () => jest.fn((fn) => fn));
const lodash = jest.requireActual('lodash');
describe('DiffView', () => {
const DiffExpansionCell = { template: `<div/>` };
const DiffRow = { template: `<div/>` };
const DiffCommentCell = { template: `<div/>` };
const DraftNote = { template: `<div/>` };
const showCommentForm = jest.fn();
const setSelectedCommentPosition = jest.fn();
const getDiffRow = (wrapper) => wrapper.findComponent(DiffRow).vm;
const createWrapper = ({ props } = {}) => {
Vue.use(Vuex);
const batchComments = {
getters: {
shouldRenderDraftRow: () => false,
shouldRenderParallelDraftRow: () => () => true,
draftsForLine: () => false,
draftsForFile: () => false,
hasParallelDraftLeft: () => false,
hasParallelDraftRight: () => false,
},
namespaced: true,
};
const diffs = {
actions: { showCommentForm },
getters: { commitId: () => 'abc123', fileLineCoverage: () => ({}) },
namespaced: true,
};
const notes = {
actions: { setSelectedCommentPosition },
state: { selectedCommentPosition: null, selectedCommentPositionHover: null },
};
const store = new Vuex.Store({
modules: { diffs, notes, batchComments },
});
const propsData = {
diffFile: { file_hash: '123' },
diffLines: [],
...props,
};
const stubs = { DiffExpansionCell, DiffRow, DiffCommentCell, DraftNote };
return shallowMount(DiffView, { propsData, store, stubs });
};
beforeEach(() => {
throttle.mockImplementation(lodash.throttle);
});
afterEach(() => {
throttle.mockReset();
});
it.each`
type | side | container | sides | total
${'parallel'} | ${'left'} | ${'.old'} | ${{ left: { lineDrafts: [], renderDiscussion: true }, right: { lineDrafts: [], renderDiscussion: true } }} | ${2}
${'parallel'} | ${'right'} | ${'.new'} | ${{ left: { lineDrafts: [], renderDiscussion: true }, right: { lineDrafts: [], renderDiscussion: true } }} | ${2}
${'inline'} | ${'left'} | ${'.old'} | ${{ left: { lineDrafts: [], renderDiscussion: true } }} | ${1}
${'inline'} | ${'left'} | ${'.old'} | ${{ left: { lineDrafts: [], renderDiscussion: true } }} | ${1}
${'inline'} | ${'left'} | ${'.old'} | ${{ left: { lineDrafts: [], renderDiscussion: true } }} | ${1}
`(
'renders a $type comment row with comment cell on $side',
({ type, container, sides, total }) => {
const wrapper = createWrapper({
props: {
diffLines: [{ renderCommentRow: true, ...sides }],
inline: type === 'inline',
},
});
expect(wrapper.findAllComponents(DiffCommentCell).length).toBe(total);
expect(wrapper.find(container).findComponent(DiffCommentCell).exists()).toBe(true);
},
);
it('renders a draft row', () => {
const wrapper = createWrapper({
props: { diffLines: [{ renderCommentRow: true, left: { lineDrafts: [{ isDraft: true }] } }] },
});
expect(wrapper.findComponent(DraftNote).exists()).toBe(true);
});
describe('drag operations', () => {
it('sets `dragStart` onStartDragging', () => {
const wrapper = createWrapper({ props: { diffLines: [{}] } });
wrapper.findComponent(DiffRow).vm.$emit('startdragging', { line: { test: true } });
expect(wrapper.vm.idState.dragStart).toEqual({ test: true });
});
it('does not call `setSelectedCommentPosition` on different chunks onDragOver', () => {
const wrapper = createWrapper({ props: { diffLines: [{}] } });
const diffRow = getDiffRow(wrapper);
diffRow.$emit('startdragging', { line: { chunk: 0 } });
diffRow.$emit('enterdragging', { chunk: 1 });
expect(setSelectedCommentPosition).not.toHaveBeenCalled();
});
it.each`
start | end | expectation
${1} | ${2} | ${{ start: { index: 1 }, end: { index: 2 } }}
${2} | ${1} | ${{ start: { index: 1 }, end: { index: 2 } }}
${1} | ${1} | ${{ start: { index: 1 }, end: { index: 1 } }}
`(
'calls `setSelectedCommentPosition` with correct `updatedLineRange`',
({ start, end, expectation }) => {
const wrapper = createWrapper({ props: { diffLines: [{}] } });
const diffRow = getDiffRow(wrapper);
diffRow.$emit('startdragging', { line: { chunk: 1, index: start } });
diffRow.$emit('enterdragging', { chunk: 1, index: end });
const arg = setSelectedCommentPosition.mock.calls[0][1];
expect(arg).toMatchObject(expectation);
},
);
it('sets `dragStart` to null onStopDragging', () => {
const wrapper = createWrapper({ props: { diffLines: [{}] } });
const diffRow = getDiffRow(wrapper);
diffRow.$emit('startdragging', { line: { test: true } });
expect(wrapper.vm.idState.dragStart).toEqual({ test: true });
diffRow.$emit('stopdragging');
expect(wrapper.vm.idState.dragStart).toBeNull();
expect(showCommentForm).toHaveBeenCalled();
});
it('throttles multiple calls to enterdragging', () => {
const wrapper = createWrapper({ props: { diffLines: [{}] } });
const diffRow = getDiffRow(wrapper);
diffRow.$emit('startdragging', { line: { chunk: 1, index: 1 } });
diffRow.$emit('enterdragging', { chunk: 1, index: 2 });
diffRow.$emit('enterdragging', { chunk: 1, index: 2 });
jest.runOnlyPendingTimers();
expect(setSelectedCommentPosition).toHaveBeenCalledTimes(1);
});
});
});
|
