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import Vue from 'vue';
import { createComponentWithStore } from 'helpers/vue_mount_component_helper';
import { mockTracking, triggerEvent } from 'helpers/tracking_helper';
import { createStore } from '~/mr_notes/stores';
import DiffFileComponent from '~/diffs/components/diff_file.vue';
import { diffViewerModes, diffViewerErrors } from '~/ide/constants';
import diffFileMockDataReadable from '../mock_data/diff_file';
import diffFileMockDataUnreadable from '../mock_data/diff_file_unreadable';
describe('DiffFile', () => {
let vm;
let trackingSpy;
beforeEach(() => {
vm = createComponentWithStore(Vue.extend(DiffFileComponent), createStore(), {
file: JSON.parse(JSON.stringify(diffFileMockDataReadable)),
canCurrentUserFork: false,
viewDiffsFileByFile: false,
}).$mount();
trackingSpy = mockTracking('_category_', vm.$el, jest.spyOn);
});
afterEach(() => {
vm.$destroy();
});
const findDiffContent = () => vm.$el.querySelector('.diff-content');
const isVisible = el => el.style.display !== 'none';
describe('template', () => {
it('should render component with file header, file content components', done => {
const el = vm.$el;
const { file_hash, file_path } = vm.file;
expect(el.id).toEqual(file_hash);
expect(el.classList.contains('diff-file')).toEqual(true);
expect(el.querySelectorAll('.diff-content.hidden').length).toEqual(0);
expect(el.querySelector('.js-file-title')).toBeDefined();
expect(el.querySelector('.btn-clipboard')).toBeDefined();
expect(el.querySelector('.file-title-name').innerText.indexOf(file_path)).toBeGreaterThan(-1);
expect(el.querySelector('.js-syntax-highlight')).toBeDefined();
vm.file.renderIt = true;
vm.$nextTick()
.then(() => {
expect(el.querySelectorAll('.line_content').length).toBe(8);
expect(el.querySelectorAll('.js-line-expansion-content').length).toBe(1);
triggerEvent('.btn-clipboard');
})
.then(done)
.catch(done.fail);
});
it('should track a click event on copy to clip board button', done => {
const el = vm.$el;
expect(el.querySelector('.btn-clipboard')).toBeDefined();
vm.file.renderIt = true;
vm.$nextTick()
.then(() => {
triggerEvent('.btn-clipboard');
expect(trackingSpy).toHaveBeenCalledWith('_category_', 'click_copy_file_button', {
label: 'diff_copy_file_path_button',
property: 'diff_copy_file',
});
})
.then(done)
.catch(done.fail);
});
describe('collapsed', () => {
it('should not have file content', done => {
expect(isVisible(findDiffContent())).toBe(true);
expect(vm.isCollapsed).toEqual(false);
vm.isCollapsed = true;
vm.file.renderIt = true;
vm.$nextTick(() => {
expect(isVisible(findDiffContent())).toBe(false);
done();
});
});
it('should have collapsed text and link', done => {
vm.renderIt = true;
vm.isCollapsed = true;
vm.$nextTick(() => {
expect(vm.$el.innerText).toContain('This file is collapsed.');
expect(vm.$el.querySelector('[data-testid="expandButton"]')).not.toBeFalsy();
done();
});
});
it('should have collapsed text and link even before rendered', done => {
vm.renderIt = false;
vm.isCollapsed = true;
vm.$nextTick(() => {
expect(vm.$el.innerText).toContain('This file is collapsed.');
expect(vm.$el.querySelector('[data-testid="expandButton"]')).not.toBeFalsy();
done();
});
});
it('should be collapsable for unreadable files', done => {
vm.$destroy();
vm = createComponentWithStore(Vue.extend(DiffFileComponent), createStore(), {
file: JSON.parse(JSON.stringify(diffFileMockDataUnreadable)),
canCurrentUserFork: false,
viewDiffsFileByFile: false,
}).$mount();
vm.renderIt = false;
vm.isCollapsed = true;
vm.$nextTick(() => {
expect(vm.$el.innerText).toContain('This file is collapsed.');
expect(vm.$el.querySelector('[data-testid="expandButton"]')).not.toBeFalsy();
done();
});
});
it('should be collapsed for renamed files', done => {
vm.renderIt = true;
vm.isCollapsed = false;
vm.file.highlighted_diff_lines = null;
vm.file.viewer.name = diffViewerModes.renamed;
vm.$nextTick(() => {
expect(vm.$el.innerText).not.toContain('This file is collapsed.');
done();
});
});
it('should be collapsed for mode changed files', done => {
vm.renderIt = true;
vm.isCollapsed = false;
vm.file.highlighted_diff_lines = null;
vm.file.viewer.name = diffViewerModes.mode_changed;
vm.$nextTick(() => {
expect(vm.$el.innerText).not.toContain('This file is collapsed.');
done();
});
});
it('should have loading icon while loading a collapsed diffs', done => {
vm.isCollapsed = true;
vm.isLoadingCollapsedDiff = true;
vm.$nextTick(() => {
expect(vm.$el.querySelectorAll('.diff-content.loading').length).toEqual(1);
done();
});
});
it('should update store state', done => {
jest.spyOn(vm.$store, 'dispatch').mockImplementation(() => {});
vm.isCollapsed = true;
vm.$nextTick(() => {
expect(vm.$store.dispatch).toHaveBeenCalledWith('diffs/setFileCollapsed', {
filePath: vm.file.file_path,
collapsed: true,
});
done();
});
});
it('updates local state when changing file state', done => {
vm.file.viewer.collapsed = true;
vm.$nextTick(() => {
expect(vm.isCollapsed).toBe(true);
done();
});
});
});
});
describe('too large diff', () => {
it('should have too large warning and blob link', done => {
const BLOB_LINK = '/file/view/path';
vm.file.viewer.error = diffViewerErrors.too_large;
vm.file.viewer.error_message =
'This source diff could not be displayed because it is too large';
vm.file.view_path = BLOB_LINK;
vm.file.renderIt = true;
vm.$nextTick(() => {
expect(vm.$el.innerText).toContain(
'This source diff could not be displayed because it is too large',
);
done();
});
});
});
describe('watch collapsed', () => {
it('calls handleLoadCollapsedDiff if collapsed changed & file has no lines', done => {
jest.spyOn(vm, 'handleLoadCollapsedDiff').mockImplementation(() => {});
vm.file.highlighted_diff_lines = undefined;
vm.file.parallel_diff_lines = [];
vm.isCollapsed = true;
vm.$nextTick()
.then(() => {
vm.isCollapsed = false;
return vm.$nextTick();
})
.then(() => {
expect(vm.handleLoadCollapsedDiff).toHaveBeenCalled();
})
.then(done)
.catch(done.fail);
});
it('does not call handleLoadCollapsedDiff if collapsed changed & file is unreadable', done => {
vm.$destroy();
vm = createComponentWithStore(Vue.extend(DiffFileComponent), createStore(), {
file: JSON.parse(JSON.stringify(diffFileMockDataUnreadable)),
canCurrentUserFork: false,
viewDiffsFileByFile: false,
}).$mount();
jest.spyOn(vm, 'handleLoadCollapsedDiff').mockImplementation(() => {});
vm.file.highlighted_diff_lines = undefined;
vm.file.parallel_diff_lines = [];
vm.isCollapsed = true;
vm.$nextTick()
.then(() => {
vm.isCollapsed = false;
return vm.$nextTick();
})
.then(() => {
expect(vm.handleLoadCollapsedDiff).not.toHaveBeenCalled();
})
.then(done)
.catch(done.fail);
});
});
});
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