debian-mirror-gitlab/spec/frontend/diffs/components/app_spec.js

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import Vuex from 'vuex';
import { shallowMount, createLocalVue } from '@vue/test-utils';
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import { GlLoadingIcon } from '@gitlab/ui';
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import MockAdapter from 'axios-mock-adapter';
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import { TEST_HOST } from 'spec/test_constants';
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import Mousetrap from 'mousetrap';
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import App from '~/diffs/components/app.vue';
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import NoChanges from '~/diffs/components/no_changes.vue';
import DiffFile from '~/diffs/components/diff_file.vue';
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import CompareVersions from '~/diffs/components/compare_versions.vue';
import HiddenFilesWarning from '~/diffs/components/hidden_files_warning.vue';
import CommitWidget from '~/diffs/components/commit_widget.vue';
import TreeList from '~/diffs/components/tree_list.vue';
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import { INLINE_DIFF_VIEW_TYPE, PARALLEL_DIFF_VIEW_TYPE } from '~/diffs/constants';
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import createDiffsStore from '../create_diffs_store';
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import axios from '~/lib/utils/axios_utils';
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import * as urlUtils from '~/lib/utils/url_utility';
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import diffsMockData from '../mock_data/merge_request_diffs';
const mergeRequestDiff = { version_index: 1 };
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const TEST_ENDPOINT = `${TEST_HOST}/diff/endpoint`;
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const COMMIT_URL = '[BASE URL]/OLD';
const UPDATED_COMMIT_URL = '[BASE URL]/NEW';
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describe('diffs/components/app', () => {
const oldMrTabs = window.mrTabs;
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let store;
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let wrapper;
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let mock;
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function createComponent(props = {}, extendStore = () => {}, provisions = {}) {
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const localVue = createLocalVue();
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const provide = {
...provisions,
glFeatures: {
...(provisions.glFeatures || {}),
},
};
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localVue.use(Vuex);
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store = createDiffsStore();
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store.state.diffs.isLoading = false;
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extendStore(store);
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wrapper = shallowMount(localVue.extend(App), {
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localVue,
propsData: {
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endpoint: TEST_ENDPOINT,
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endpointMetadata: `${TEST_HOST}/diff/endpointMetadata`,
endpointBatch: `${TEST_HOST}/diff/endpointBatch`,
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endpointCoverage: `${TEST_HOST}/diff/endpointCoverage`,
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projectPath: 'namespace/project',
currentUser: {},
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changesEmptyStateIllustration: '',
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dismissEndpoint: '',
showSuggestPopover: true,
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viewDiffsFileByFile: false,
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...props,
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},
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provide,
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store,
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methods: {
isLatestVersion() {
return true;
},
},
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});
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}
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function getOppositeViewType(currentViewType) {
return currentViewType === INLINE_DIFF_VIEW_TYPE
? PARALLEL_DIFF_VIEW_TYPE
: INLINE_DIFF_VIEW_TYPE;
}
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beforeEach(() => {
// setup globals (needed for component to mount :/)
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window.mrTabs = {
resetViewContainer: jest.fn(),
};
window.mrTabs.expandViewContainer = jest.fn();
mock = new MockAdapter(axios);
mock.onGet(TEST_ENDPOINT).reply(200, {});
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});
afterEach(() => {
// reset globals
window.mrTabs = oldMrTabs;
// reset component
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if (wrapper) {
wrapper.destroy();
wrapper = null;
}
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mock.restore();
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});
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describe('fetch diff methods', () => {
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beforeEach(done => {
const fetchResolver = () => {
store.state.diffs.retrievingBatches = false;
store.state.notes.discussions = 'test';
return Promise.resolve({ real_size: 100 });
};
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jest.spyOn(window, 'requestIdleCallback').mockImplementation(fn => fn());
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createComponent();
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jest.spyOn(wrapper.vm, 'fetchDiffFiles').mockImplementation(fetchResolver);
jest.spyOn(wrapper.vm, 'fetchDiffFilesMeta').mockImplementation(fetchResolver);
jest.spyOn(wrapper.vm, 'fetchDiffFilesBatch').mockImplementation(fetchResolver);
jest.spyOn(wrapper.vm, 'fetchCoverageFiles').mockImplementation(fetchResolver);
jest.spyOn(wrapper.vm, 'setDiscussions').mockImplementation(() => {});
jest.spyOn(wrapper.vm, 'startRenderDiffsQueue').mockImplementation(() => {});
jest.spyOn(wrapper.vm, 'unwatchDiscussions').mockImplementation(() => {});
jest.spyOn(wrapper.vm, 'unwatchRetrievingBatches').mockImplementation(() => {});
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store.state.diffs.retrievingBatches = true;
store.state.diffs.diffFiles = [];
wrapper.vm.$nextTick(done);
});
describe('when the diff view type changes and it should load a single diff view style', () => {
const noLinesDiff = {
highlighted_diff_lines: [],
parallel_diff_lines: [],
};
const parallelLinesDiff = {
highlighted_diff_lines: [],
parallel_diff_lines: ['line'],
};
const inlineLinesDiff = {
highlighted_diff_lines: ['line'],
parallel_diff_lines: [],
};
const fullDiff = {
highlighted_diff_lines: ['line'],
parallel_diff_lines: ['line'],
};
function expectFetchToOccur({
vueInstance,
done = () => {},
batch = false,
existingFiles = 1,
} = {}) {
vueInstance.$nextTick(() => {
expect(vueInstance.diffFiles.length).toEqual(existingFiles);
if (!batch) {
expect(vueInstance.fetchDiffFiles).toHaveBeenCalled();
expect(vueInstance.fetchDiffFilesBatch).not.toHaveBeenCalled();
} else {
expect(vueInstance.fetchDiffFiles).not.toHaveBeenCalled();
expect(vueInstance.fetchDiffFilesBatch).toHaveBeenCalled();
}
done();
});
}
beforeEach(() => {
wrapper.vm.glFeatures.singleMrDiffView = true;
});
it('fetches diffs if it has none', done => {
wrapper.vm.isLatestVersion = () => false;
store.state.diffs.diffViewType = getOppositeViewType(wrapper.vm.diffViewType);
expectFetchToOccur({ vueInstance: wrapper.vm, batch: false, existingFiles: 0, done });
});
it('fetches diffs if it has both view styles, but no lines in either', done => {
wrapper.vm.isLatestVersion = () => false;
store.state.diffs.diffFiles.push(noLinesDiff);
store.state.diffs.diffViewType = getOppositeViewType(wrapper.vm.diffViewType);
expectFetchToOccur({ vueInstance: wrapper.vm, done });
});
it('fetches diffs if it only has inline view style', done => {
wrapper.vm.isLatestVersion = () => false;
store.state.diffs.diffFiles.push(inlineLinesDiff);
store.state.diffs.diffViewType = getOppositeViewType(wrapper.vm.diffViewType);
expectFetchToOccur({ vueInstance: wrapper.vm, done });
});
it('fetches diffs if it only has parallel view style', done => {
wrapper.vm.isLatestVersion = () => false;
store.state.diffs.diffFiles.push(parallelLinesDiff);
store.state.diffs.diffViewType = getOppositeViewType(wrapper.vm.diffViewType);
expectFetchToOccur({ vueInstance: wrapper.vm, done });
});
it('fetches batch diffs if it has none', done => {
wrapper.vm.glFeatures.diffsBatchLoad = true;
store.state.diffs.diffViewType = getOppositeViewType(wrapper.vm.diffViewType);
expectFetchToOccur({ vueInstance: wrapper.vm, batch: true, existingFiles: 0, done });
});
it('fetches batch diffs if it has both view styles, but no lines in either', done => {
wrapper.vm.glFeatures.diffsBatchLoad = true;
store.state.diffs.diffFiles.push(noLinesDiff);
store.state.diffs.diffViewType = getOppositeViewType(wrapper.vm.diffViewType);
expectFetchToOccur({ vueInstance: wrapper.vm, batch: true, done });
});
it('fetches batch diffs if it only has inline view style', done => {
wrapper.vm.glFeatures.diffsBatchLoad = true;
store.state.diffs.diffFiles.push(inlineLinesDiff);
store.state.diffs.diffViewType = getOppositeViewType(wrapper.vm.diffViewType);
expectFetchToOccur({ vueInstance: wrapper.vm, batch: true, done });
});
it('fetches batch diffs if it only has parallel view style', done => {
wrapper.vm.glFeatures.diffsBatchLoad = true;
store.state.diffs.diffFiles.push(parallelLinesDiff);
store.state.diffs.diffViewType = getOppositeViewType(wrapper.vm.diffViewType);
expectFetchToOccur({ vueInstance: wrapper.vm, batch: true, done });
});
it('does not fetch diffs if it has already fetched both styles of diff', () => {
wrapper.vm.glFeatures.diffsBatchLoad = false;
store.state.diffs.diffFiles.push(fullDiff);
store.state.diffs.diffViewType = getOppositeViewType(wrapper.vm.diffViewType);
expect(wrapper.vm.diffFiles.length).toEqual(1);
expect(wrapper.vm.fetchDiffFiles).not.toHaveBeenCalled();
expect(wrapper.vm.fetchDiffFilesBatch).not.toHaveBeenCalled();
});
it('does not fetch batch diffs if it has already fetched both styles of diff', () => {
wrapper.vm.glFeatures.diffsBatchLoad = true;
store.state.diffs.diffFiles.push(fullDiff);
store.state.diffs.diffViewType = getOppositeViewType(wrapper.vm.diffViewType);
expect(wrapper.vm.diffFiles.length).toEqual(1);
expect(wrapper.vm.fetchDiffFiles).not.toHaveBeenCalled();
expect(wrapper.vm.fetchDiffFilesBatch).not.toHaveBeenCalled();
});
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});
it('calls fetchDiffFiles if diffsBatchLoad is not enabled', done => {
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expect(wrapper.vm.diffFilesLength).toEqual(0);
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wrapper.vm.glFeatures.diffsBatchLoad = false;
wrapper.vm.fetchData(false);
expect(wrapper.vm.fetchDiffFiles).toHaveBeenCalled();
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setImmediate(() => {
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expect(wrapper.vm.startRenderDiffsQueue).toHaveBeenCalled();
expect(wrapper.vm.fetchDiffFilesMeta).not.toHaveBeenCalled();
expect(wrapper.vm.fetchDiffFilesBatch).not.toHaveBeenCalled();
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expect(wrapper.vm.fetchCoverageFiles).toHaveBeenCalled();
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expect(wrapper.vm.unwatchDiscussions).toHaveBeenCalled();
expect(wrapper.vm.diffFilesLength).toEqual(100);
expect(wrapper.vm.unwatchRetrievingBatches).toHaveBeenCalled();
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done();
});
});
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it('calls batch methods if diffsBatchLoad is enabled, and not latest version', done => {
expect(wrapper.vm.diffFilesLength).toEqual(0);
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wrapper.vm.glFeatures.diffsBatchLoad = true;
wrapper.vm.isLatestVersion = () => false;
wrapper.vm.fetchData(false);
expect(wrapper.vm.fetchDiffFiles).not.toHaveBeenCalled();
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setImmediate(() => {
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expect(wrapper.vm.startRenderDiffsQueue).toHaveBeenCalled();
expect(wrapper.vm.fetchDiffFilesMeta).toHaveBeenCalled();
expect(wrapper.vm.fetchDiffFilesBatch).toHaveBeenCalled();
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expect(wrapper.vm.fetchCoverageFiles).toHaveBeenCalled();
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expect(wrapper.vm.unwatchDiscussions).toHaveBeenCalled();
expect(wrapper.vm.diffFilesLength).toEqual(100);
expect(wrapper.vm.unwatchRetrievingBatches).toHaveBeenCalled();
done();
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});
});
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it('calls batch methods if diffsBatchLoad is enabled, and latest version', done => {
expect(wrapper.vm.diffFilesLength).toEqual(0);
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wrapper.vm.glFeatures.diffsBatchLoad = true;
wrapper.vm.fetchData(false);
expect(wrapper.vm.fetchDiffFiles).not.toHaveBeenCalled();
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setImmediate(() => {
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expect(wrapper.vm.startRenderDiffsQueue).toHaveBeenCalled();
expect(wrapper.vm.fetchDiffFilesMeta).toHaveBeenCalled();
expect(wrapper.vm.fetchDiffFilesBatch).toHaveBeenCalled();
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expect(wrapper.vm.fetchCoverageFiles).toHaveBeenCalled();
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expect(wrapper.vm.unwatchDiscussions).toHaveBeenCalled();
expect(wrapper.vm.diffFilesLength).toEqual(100);
expect(wrapper.vm.unwatchRetrievingBatches).toHaveBeenCalled();
done();
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});
});
});
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it('adds container-limiting classes when showFileTree is false with inline diffs', () => {
createComponent({}, ({ state }) => {
state.diffs.showTreeList = false;
state.diffs.isParallelView = false;
});
expect(wrapper.contains('.container-limited.limit-container-width')).toBe(true);
});
it('does not add container-limiting classes when showFileTree is false with inline diffs', () => {
createComponent({}, ({ state }) => {
state.diffs.showTreeList = true;
state.diffs.isParallelView = false;
});
expect(wrapper.contains('.container-limited.limit-container-width')).toBe(false);
});
it('does not add container-limiting classes when isFluidLayout', () => {
createComponent({ isFluidLayout: true }, ({ state }) => {
state.diffs.isParallelView = false;
});
expect(wrapper.contains('.container-limited.limit-container-width')).toBe(false);
});
it('displays loading icon on loading', () => {
createComponent({}, ({ state }) => {
state.diffs.isLoading = true;
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});
expect(wrapper.contains(GlLoadingIcon)).toBe(true);
});
it('displays loading icon on batch loading', () => {
createComponent({}, ({ state }) => {
state.diffs.isBatchLoading = true;
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});
expect(wrapper.contains(GlLoadingIcon)).toBe(true);
});
it('displays diffs container when not loading', () => {
createComponent();
expect(wrapper.contains(GlLoadingIcon)).toBe(false);
expect(wrapper.contains('#diffs')).toBe(true);
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});
it('does not show commit info', () => {
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createComponent();
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expect(wrapper.contains('.blob-commit-info')).toBe(false);
});
describe('row highlighting', () => {
beforeEach(() => {
window.location.hash = 'ABC_123';
});
it('sets highlighted row if hash exists in location object', done => {
createComponent({
shouldShow: true,
});
// Component uses $nextTick so we wait until that has finished
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setImmediate(() => {
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expect(store.state.diffs.highlightedRow).toBe('ABC_123');
done();
});
});
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it('marks current diff file based on currently highlighted row', () => {
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createComponent({
shouldShow: true,
});
// Component uses $nextTick so we wait until that has finished
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return wrapper.vm.$nextTick().then(() => {
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expect(store.state.diffs.currentDiffFileId).toBe('ABC');
});
});
});
describe('resizable', () => {
afterEach(() => {
localStorage.removeItem('mr_tree_list_width');
});
it('sets initial width when no localStorage has been set', () => {
createComponent();
expect(wrapper.vm.treeWidth).toEqual(320);
});
it('sets initial width to localStorage size', () => {
localStorage.setItem('mr_tree_list_width', '200');
createComponent();
expect(wrapper.vm.treeWidth).toEqual(200);
});
it('sets width of tree list', () => {
createComponent();
expect(wrapper.find('.js-diff-tree-list').element.style.width).toEqual('320px');
});
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});
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it('marks current diff file based on currently highlighted row', done => {
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createComponent({
shouldShow: true,
});
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// Component uses $nextTick so we wait until that has finished
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setImmediate(() => {
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expect(store.state.diffs.currentDiffFileId).toBe('ABC');
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done();
});
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});
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describe('empty state', () => {
it('renders empty state when no diff files exist', () => {
createComponent();
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expect(wrapper.contains(NoChanges)).toBe(true);
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});
it('does not render empty state when diff files exist', () => {
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createComponent({}, ({ state }) => {
state.diffs.diffFiles.push({
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id: 1,
});
});
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expect(wrapper.contains(NoChanges)).toBe(false);
expect(wrapper.findAll(DiffFile).length).toBe(1);
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});
it('does not render empty state when versions match', () => {
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createComponent({}, ({ state }) => {
state.diffs.startVersion = mergeRequestDiff;
state.diffs.mergeRequestDiff = mergeRequestDiff;
});
expect(wrapper.contains(NoChanges)).toBe(false);
});
});
describe('keyboard shortcut navigation', () => {
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let spies = [];
let jumpSpy;
let moveSpy;
function setup(componentProps, featureFlags) {
createComponent(
componentProps,
({ state }) => {
state.diffs.commit = { id: 'SHA123' };
},
{ glFeatures: { mrCommitNeighborNav: true, ...featureFlags } },
);
moveSpy = jest.spyOn(wrapper.vm, 'moveToNeighboringCommit').mockImplementation(() => {});
jumpSpy = jest.fn();
spies = [jumpSpy, moveSpy];
wrapper.setMethods({
jumpToFile: jumpSpy,
});
}
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describe('visible app', () => {
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it.each`
key | name | spy | args | featureFlags
${'['} | ${'jumpToFile'} | ${0} | ${[-1]} | ${{}}
${'k'} | ${'jumpToFile'} | ${0} | ${[-1]} | ${{}}
${']'} | ${'jumpToFile'} | ${0} | ${[+1]} | ${{}}
${'j'} | ${'jumpToFile'} | ${0} | ${[+1]} | ${{}}
${'x'} | ${'moveToNeighboringCommit'} | ${1} | ${[{ direction: 'previous' }]} | ${{ mrCommitNeighborNav: true }}
${'c'} | ${'moveToNeighboringCommit'} | ${1} | ${[{ direction: 'next' }]} | ${{ mrCommitNeighborNav: true }}
`(
'calls `$name()` with correct parameters whenever the "$key" key is pressed',
({ key, spy, args, featureFlags }) => {
setup({ shouldShow: true }, featureFlags);
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return wrapper.vm.$nextTick().then(() => {
expect(spies[spy]).not.toHaveBeenCalled();
Mousetrap.trigger(key);
expect(spies[spy]).toHaveBeenCalledWith(...args);
});
},
);
it.each`
key | name | spy | featureFlags
${'x'} | ${'moveToNeighboringCommit'} | ${1} | ${{ mrCommitNeighborNav: false }}
${'c'} | ${'moveToNeighboringCommit'} | ${1} | ${{ mrCommitNeighborNav: false }}
`(
'does not call `$name()` even when the correct key is pressed if the feature flag is disabled',
({ key, spy, featureFlags }) => {
setup({ shouldShow: true }, featureFlags);
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return wrapper.vm.$nextTick().then(() => {
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expect(spies[spy]).not.toHaveBeenCalled();
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Mousetrap.trigger(key);
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expect(spies[spy]).not.toHaveBeenCalled();
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});
},
);
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it.each`
key | name | spy | allowed
${'d'} | ${'jumpToFile'} | ${0} | ${['[', ']', 'j', 'k']}
${'r'} | ${'moveToNeighboringCommit'} | ${1} | ${['x', 'c']}
`(
`does not call \`$name()\` when a key that is not one of \`$allowed\` is pressed`,
({ key, spy }) => {
setup({ shouldShow: true }, { mrCommitNeighborNav: true });
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return wrapper.vm.$nextTick().then(() => {
Mousetrap.trigger(key);
expect(spies[spy]).not.toHaveBeenCalled();
});
},
);
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});
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describe('hidden app', () => {
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beforeEach(() => {
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setup({ shouldShow: false }, { mrCommitNeighborNav: true });
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return wrapper.vm.$nextTick().then(() => {
Mousetrap.reset();
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});
});
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it.each`
key | name | spy
${'['} | ${'jumpToFile'} | ${0}
${'k'} | ${'jumpToFile'} | ${0}
${']'} | ${'jumpToFile'} | ${0}
${'j'} | ${'jumpToFile'} | ${0}
${'x'} | ${'moveToNeighboringCommit'} | ${1}
${'c'} | ${'moveToNeighboringCommit'} | ${1}
`('stops calling `$name()` when the app is hidden', ({ key, spy }) => {
Mousetrap.trigger(key);
expect(spies[spy]).not.toHaveBeenCalled();
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});
});
});
describe('jumpToFile', () => {
let spy;
beforeEach(() => {
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spy = jest.fn();
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createComponent({}, () => {
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store.state.diffs.diffFiles = [
{ file_hash: '111', file_path: '111.js' },
{ file_hash: '222', file_path: '222.js' },
{ file_hash: '333', file_path: '333.js' },
];
});
wrapper.setMethods({
scrollToFile: spy,
});
});
afterEach(() => {
wrapper.destroy();
});
it('jumps to next and previous files in the list', done => {
wrapper.vm
.$nextTick()
.then(() => {
wrapper.vm.jumpToFile(+1);
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expect(spy.mock.calls[spy.mock.calls.length - 1]).toEqual(['222.js']);
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store.state.diffs.currentDiffFileId = '222';
wrapper.vm.jumpToFile(+1);
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expect(spy.mock.calls[spy.mock.calls.length - 1]).toEqual(['333.js']);
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store.state.diffs.currentDiffFileId = '333';
wrapper.vm.jumpToFile(-1);
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expect(spy.mock.calls[spy.mock.calls.length - 1]).toEqual(['222.js']);
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})
.then(done)
.catch(done.fail);
});
it('does not jump to previous file from the first one', done => {
wrapper.vm
.$nextTick()
.then(() => {
store.state.diffs.currentDiffFileId = '333';
expect(wrapper.vm.currentDiffIndex).toEqual(2);
wrapper.vm.jumpToFile(+1);
expect(wrapper.vm.currentDiffIndex).toEqual(2);
expect(spy).not.toHaveBeenCalled();
})
.then(done)
.catch(done.fail);
});
it('does not jump to next file from the last one', done => {
wrapper.vm
.$nextTick()
.then(() => {
expect(wrapper.vm.currentDiffIndex).toEqual(0);
wrapper.vm.jumpToFile(-1);
expect(wrapper.vm.currentDiffIndex).toEqual(0);
expect(spy).not.toHaveBeenCalled();
})
.then(done)
.catch(done.fail);
});
});
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describe('commit watcher', () => {
const spy = () => {
jest.spyOn(wrapper.vm, 'refetchDiffData').mockImplementation(() => {});
jest.spyOn(wrapper.vm, 'adjustView').mockImplementation(() => {});
};
let location;
beforeAll(() => {
location = window.location;
delete window.location;
window.location = COMMIT_URL;
document.title = 'My Title';
});
beforeEach(() => {
jest.spyOn(urlUtils, 'updateHistory');
});
afterAll(() => {
window.location = location;
});
it('when the commit changes and the app is not loading it should update the history, refetch the diff data, and update the view', () => {
createComponent({}, ({ state }) => {
state.diffs.commit = { ...state.diffs.commit, id: 'OLD' };
});
spy();
store.state.diffs.commit = { id: 'NEW' };
return wrapper.vm.$nextTick().then(() => {
expect(urlUtils.updateHistory).toHaveBeenCalledWith({
title: document.title,
url: UPDATED_COMMIT_URL,
});
expect(wrapper.vm.refetchDiffData).toHaveBeenCalled();
expect(wrapper.vm.adjustView).toHaveBeenCalled();
});
});
it.each`
isLoading | oldSha | newSha
${true} | ${'OLD'} | ${'NEW'}
${false} | ${'NEW'} | ${'NEW'}
`(
'given `{ "isLoading": $isLoading, "oldSha": "$oldSha", "newSha": "$newSha" }`, nothing should happen',
({ isLoading, oldSha, newSha }) => {
createComponent({}, ({ state }) => {
state.diffs.isLoading = isLoading;
state.diffs.commit = { ...state.diffs.commit, id: oldSha };
});
spy();
store.state.diffs.commit = { id: newSha };
return wrapper.vm.$nextTick().then(() => {
expect(urlUtils.updateHistory).not.toHaveBeenCalled();
expect(wrapper.vm.refetchDiffData).not.toHaveBeenCalled();
expect(wrapper.vm.adjustView).not.toHaveBeenCalled();
});
},
);
});
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describe('diffs', () => {
it('should render compare versions component', () => {
createComponent({}, ({ state }) => {
state.diffs.mergeRequestDiffs = diffsMockData;
state.diffs.targetBranchName = 'target-branch';
state.diffs.mergeRequestDiff = mergeRequestDiff;
});
expect(wrapper.contains(CompareVersions)).toBe(true);
expect(wrapper.find(CompareVersions).props()).toEqual(
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expect.objectContaining({
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mergeRequestDiffs: diffsMockData,
}),
);
});
it('should render hidden files warning if render overflow warning is present', () => {
createComponent({}, ({ state }) => {
state.diffs.renderOverflowWarning = true;
state.diffs.realSize = '5';
state.diffs.plainDiffPath = 'plain diff path';
state.diffs.emailPatchPath = 'email patch path';
state.diffs.size = 1;
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});
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expect(wrapper.contains(HiddenFilesWarning)).toBe(true);
expect(wrapper.find(HiddenFilesWarning).props()).toEqual(
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expect.objectContaining({
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total: '5',
plainDiffPath: 'plain diff path',
emailPatchPath: 'email patch path',
visible: 1,
}),
);
});
it('should display commit widget if store has a commit', () => {
createComponent({}, () => {
store.state.diffs.commit = {
author: 'John Doe',
};
});
expect(wrapper.contains(CommitWidget)).toBe(true);
});
it('should display diff file if there are diff files', () => {
createComponent({}, ({ state }) => {
state.diffs.diffFiles.push({ sha: '123' });
});
expect(wrapper.contains(DiffFile)).toBe(true);
});
it('should render tree list', () => {
createComponent();
expect(wrapper.find(TreeList).exists()).toBe(true);
});
});
describe('hideTreeListIfJustOneFile', () => {
let toggleShowTreeList;
beforeEach(() => {
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toggleShowTreeList = jest.fn();
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});
afterEach(() => {
localStorage.removeItem('mr_tree_show');
});
it('calls toggleShowTreeList when only 1 file', () => {
createComponent({}, ({ state }) => {
state.diffs.diffFiles.push({ sha: '123' });
});
wrapper.setMethods({
toggleShowTreeList,
});
wrapper.vm.hideTreeListIfJustOneFile();
expect(toggleShowTreeList).toHaveBeenCalledWith(false);
});
it('does not call toggleShowTreeList when more than 1 file', () => {
createComponent({}, ({ state }) => {
state.diffs.diffFiles.push({ sha: '123' });
state.diffs.diffFiles.push({ sha: '124' });
});
wrapper.setMethods({
toggleShowTreeList,
});
wrapper.vm.hideTreeListIfJustOneFile();
expect(toggleShowTreeList).not.toHaveBeenCalled();
});
it('does not call toggleShowTreeList when localStorage is set', () => {
localStorage.setItem('mr_tree_show', 'true');
createComponent({}, ({ state }) => {
state.diffs.diffFiles.push({ sha: '123' });
});
wrapper.setMethods({
toggleShowTreeList,
});
wrapper.vm.hideTreeListIfJustOneFile();
expect(toggleShowTreeList).not.toHaveBeenCalled();
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});
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});
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describe('file-by-file', () => {
it('renders a single diff', () => {
createComponent({ viewDiffsFileByFile: true }, ({ state }) => {
state.diffs.diffFiles.push({ file_hash: '123' });
state.diffs.diffFiles.push({ file_hash: '312' });
});
expect(wrapper.findAll(DiffFile).length).toBe(1);
});
describe('pagination', () => {
it('sets previous button as disabled', () => {
createComponent({ viewDiffsFileByFile: true }, ({ state }) => {
state.diffs.diffFiles.push({ file_hash: '123' }, { file_hash: '312' });
});
expect(wrapper.find('[data-testid="singleFilePrevious"]').props('disabled')).toBe(true);
expect(wrapper.find('[data-testid="singleFileNext"]').props('disabled')).toBe(false);
});
it('sets next button as disabled', () => {
createComponent({ viewDiffsFileByFile: true }, ({ state }) => {
state.diffs.diffFiles.push({ file_hash: '123' }, { file_hash: '312' });
state.diffs.currentDiffFileId = '312';
});
expect(wrapper.find('[data-testid="singleFilePrevious"]').props('disabled')).toBe(false);
expect(wrapper.find('[data-testid="singleFileNext"]').props('disabled')).toBe(true);
});
it.each`
currentDiffFileId | button | index
${'123'} | ${'singleFileNext'} | ${1}
${'312'} | ${'singleFilePrevious'} | ${0}
`(
'it calls navigateToDiffFileIndex with $index when $button is clicked',
({ currentDiffFileId, button, index }) => {
createComponent({ viewDiffsFileByFile: true }, ({ state }) => {
state.diffs.diffFiles.push({ file_hash: '123' }, { file_hash: '312' });
state.diffs.currentDiffFileId = currentDiffFileId;
});
jest.spyOn(wrapper.vm, 'navigateToDiffFileIndex');
wrapper.find(`[data-testid="${button}"]`).vm.$emit('click');
return wrapper.vm.$nextTick().then(() => {
expect(wrapper.vm.navigateToDiffFileIndex).toHaveBeenCalledWith(index);
});
},
);
});
});
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});