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How to use MockRender method in ng-mocks

Best JavaScript code snippet using ng-mocks

Tree.js

Source:Tree.js

1//@flow2import { mount, configure } from 'enzyme';3import Adapter from 'enzyme-adapter-react-16';4import React from 'react';5import {6  type DropResult,7  type DragUpdate,8  type DragStart,9  Droppable,10} from 'react-beautiful-dnd';11import { getBox } from 'css-box-model';12import Tree from '../../Tree';13import { mutateTree } from '../../../../utils/tree';14import { treeWithThreeLeaves } from '../../../../../mockdata/treeWithThreeLeaves';15import { treeWithTwoBranches } from '../../../../../mockdata/treeWithTwoBranches';16configure({ adapter: new Adapter() });17const dragStart: DragStart = {18  draggableId: '1-1',19  type: 'any',20  source: {21    droppableId: 'list',22    index: 1,23  },24  mode: 'FLUID',25};26const dragUpdate: DragUpdate = {27  ...dragStart,28  destination: {29    droppableId: 'list',30    index: 4,31  },32  combine: undefined,33};34const dropResult: DropResult = {35  ...dragUpdate,36  reason: 'DROP',37};38jest.mock('css-box-model');39jest.useFakeTimers();40describe('@atlaskit/tree - Tree', () => {41  const mockRender = jest.fn(({ provided }) => (42    <div43      ref={provided.innerRef}44      {...provided.draggableProps}45      {...provided.dragHandleProps}46    >47      Draggable48    </div>49  ));50  beforeEach(() => {51    mockRender.mockClear();52  });53  describe('#closeParentIfNeeded', () => {54    it("collapses parent if it's draggen", () => {55      expect(treeWithTwoBranches.items['1-1'].isExpanded).toBe(true);56      const newTree = Tree.closeParentIfNeeded(treeWithTwoBranches, '1-1');57      expect(newTree.items['1-1'].isExpanded).toBe(false);58    });59  });60  describe('#render', () => {61    it('renders Droppable with the correct props', () => {62      const tree = mount(63        <Tree tree={treeWithThreeLeaves} renderItem={mockRender} />,64      );65      const droppable = tree.find(Droppable);66      expect(droppable.prop('droppableId')).toBe('tree');67      expect(droppable.prop('isCombineEnabled')).toBe(false);68      expect(droppable.prop('ignoreContainerClipping')).toBe(true);69    });70    it('renders a flat list using renderItem', () => {71      mount(<Tree tree={treeWithThreeLeaves} renderItem={mockRender} />);72      expect(mockRender).toHaveBeenCalledTimes(3);73      expect(mockRender).toBeCalledWith({74        item: treeWithThreeLeaves.items['1-1'],75        depth: 0,76        onExpand: expect.any(Function),77        onCollapse: expect.any(Function),78        provided: expect.any(Object),79        snapshot: expect.any(Object),80      });81      expect(mockRender).toBeCalledWith({82        item: treeWithThreeLeaves.items['1-2'],83        depth: 0,84        onExpand: expect.any(Function),85        onCollapse: expect.any(Function),86        provided: expect.any(Object),87        snapshot: expect.any(Object),88      });89      expect(mockRender).toBeCalledWith({90        item: treeWithThreeLeaves.items['1-3'],91        depth: 0,92        onExpand: expect.any(Function),93        onCollapse: expect.any(Function),94        provided: expect.any(Object),95        snapshot: expect.any(Object),96      });97    });98    it('re-renders only the items which have been changed', () => {99      const wrapper = mount(100        <Tree tree={treeWithThreeLeaves} renderItem={mockRender} />,101      );102      expect(mockRender).toHaveBeenCalledTimes(3);103      mockRender.mockClear();104      const mutatedTree = {105        rootId: treeWithThreeLeaves.rootId,106        items: {107          ...treeWithThreeLeaves.items,108          '1-3': {109            ...treeWithThreeLeaves.items['1-3'],110          },111        },112      };113      wrapper.setProps({ tree: mutatedTree, renderItem: mockRender });114      expect(mockRender).toHaveBeenCalledTimes(1);115      expect(mockRender).toBeCalledWith({116        item: mutatedTree.items['1-3'],117        depth: 0,118        onExpand: expect.any(Function),119        onCollapse: expect.any(Function),120        provided: expect.any(Object),121        snapshot: expect.any(Object),122      });123    });124  });125  describe('#onExpand', () => {126    it('calls with the right item', () => {127      const mockOnExpand = jest.fn();128      const firstItem = treeWithThreeLeaves.items['1-1'];129      mount(130        <Tree131          tree={treeWithThreeLeaves}132          renderItem={mockRender}133          onExpand={mockOnExpand}134        />,135      );136      mockRender.mock.calls[0][0].onExpand(firstItem);137      expect(mockOnExpand).toHaveBeenCalledTimes(1);138      expect(mockOnExpand).toBeCalledWith(firstItem, [0]);139    });140  });141  describe('#onCollapse', () => {142    it('calls with the right item', () => {143      const mockOnCollapse = jest.fn();144      const firstItem = treeWithThreeLeaves.items['1-1'];145      mount(146        <Tree147          tree={treeWithThreeLeaves}148          renderItem={mockRender}149          onCollapse={mockOnCollapse}150        />,151      );152      mockRender.mock.calls[0][0].onCollapse(firstItem);153      expect(mockOnCollapse).toHaveBeenCalledTimes(1);154      expect(mockOnCollapse).toBeCalledWith(firstItem, [0]);155    });156  });157  describe('#onDragStart', () => {158    it('saves the draggedItemId and source', () => {159      const instance = mount(160        <Tree tree={treeWithTwoBranches} renderItem={mockRender} />,161      ).instance();162      instance.onDragStart(dragStart);163      expect(instance.dragState).toEqual({164        source: dragStart.source,165        destination: dragStart.source,166        mode: dragStart.mode,167      });168      expect(instance.state.draggedItemId).toBe(dragStart.draggableId);169    });170    it('calls onDragStart if it is defined', () => {171      const mockOnStartCb = jest.fn();172      const instance = mount(173        <Tree174          tree={treeWithTwoBranches}175          renderItem={mockRender}176          onDragStart={mockOnStartCb}177        />,178      ).instance();179      instance.onDragStart(dragStart);180      expect(mockOnStartCb).toHaveBeenCalledTimes(1);181      expect(mockOnStartCb).toHaveBeenCalledWith('1-1');182    });183  });184  describe('#onDragUpdate', () => {185    it('updates dragState', () => {186      const instance = mount(187        <Tree tree={treeWithTwoBranches} renderItem={mockRender} />,188      ).instance();189      instance.onDragStart(dragStart);190      instance.onDragUpdate(dragUpdate);191      expect(instance.dragState).toEqual({192        source: dragUpdate.source,193        destination: dragUpdate.destination,194        mode: dragUpdate.mode,195      });196      expect(instance.state.draggedItemId).toBe(dragUpdate.draggableId);197    });198    it('expands parent after timeout', () => {199      const treeWithClosedParent = mutateTree(treeWithTwoBranches, '1-2', {200        isExpanded: false,201      });202      const onExpand = jest.fn();203      const instance = mount(204        <Tree205          tree={treeWithClosedParent}206          renderItem={mockRender}207          onExpand={onExpand}208        />,209      ).instance();210      instance.onDragStart(dragStart);211      instance.onDragUpdate({212        ...dragUpdate,213        combine: {214          draggableId: '1-2',215        },216        destination: null,217      });218      jest.runAllTimers();219      expect(onExpand).toHaveBeenCalledWith('1-2', [1]);220    });221  });222  describe('#onPointerMove', () => {223    it('calculates horizontal level based on the horizontal position', () => {224      // $ExpectError: mockReturnValue is missing in function225      getBox.mockReturnValue({226        contentBox: {227          left: 120,228        },229        borderBox: {230          left: 120,231        },232      });233      const instance = mount(234        <Tree tree={treeWithTwoBranches} renderItem={mockRender} />,235      ).instance();236      instance.onDragStart(dragStart);237      instance.onPointerMove();238      expect(instance.dragState).toEqual({239        source: dragStart.source,240        destination: dragStart.source,241        mode: dragStart.mode,242        horizontalLevel: 1,243      });244    });245  });246  describe('#onDropAnimating', () => {247    it('stops expansion timer for hovered ', () => {248      const treeWithClosedParent = mutateTree(treeWithTwoBranches, '1-2', {249        isExpanded: false,250      });251      const onExpand = jest.fn();252      const instance = mount(253        <Tree254          tree={treeWithClosedParent}255          renderItem={mockRender}256          onExpand={onExpand}257        />,258      ).instance();259      instance.onDragStart(dragStart);260      instance.onDragUpdate({261        ...dragUpdate,262        combine: {263          draggableId: '1-2',264        },265        destination: null,266      });267      instance.onDropAnimating();268      jest.runAllTimers();269      expect(onExpand).not.toHaveBeenCalled();270    });271  });272  describe('#onDragEnd', () => {273    it('calls props.onDragEnd when drag ends successfully', () => {274      const mockOnDragEnd = jest.fn();275      const instance = mount(276        <Tree277          tree={treeWithTwoBranches}278          renderItem={mockRender}279          onDragEnd={mockOnDragEnd}280        />,281      ).instance();282      instance.onDragEnd(dropResult);283      expect(mockOnDragEnd).toHaveBeenCalledTimes(1);284      expect(mockOnDragEnd).toBeCalledWith(285        { parentId: '1-1', index: 0 },286        { parentId: '1-2', index: 1 },287      );288    });289    it('calls props.onDragEnd when nesting successfully', () => {290      const mockOnDragEnd = jest.fn();291      const instance = mount(292        <Tree293          tree={treeWithTwoBranches}294          renderItem={mockRender}295          onDragEnd={mockOnDragEnd}296        />,297      ).instance();298      const dropResultWithCombine = {299        ...dropResult,300        destination: undefined,301        combine: {302          draggableId: '1-2',303          droppableId: 'list',304        },305      };306      instance.onDragEnd(dropResultWithCombine);307      expect(mockOnDragEnd).toHaveBeenCalledTimes(1);308      expect(mockOnDragEnd).toBeCalledWith(309        { parentId: '1-1', index: 0 },310        { parentId: '1-2' },311      );312    });313  });...

flowChartShapes.spec.js

Source:flowChartShapes.spec.js

2describe('flowchart shapes', function () {3  // rect-based shapes4  [['stadium', useWidth, useHeight]].forEach(function ([shapeType, getW, getH]) {5    it(`should add a ${shapeType} shape that renders a properly positioned rect element`, function () {6      const mockRender = MockRender();7      const mockSvg = MockSvg();8      addToRender(mockRender);9      [10        [100, 100],11        [123, 45],12        [71, 300],13      ].forEach(function ([width, height]) {14        const shape = mockRender.shapes()[shapeType](mockSvg, { width, height }, {});15        const w = width + height / 4;16        const h = height;17        const dx = -getW(w, h) / 2;18        const dy = -getH(w, h) / 2;19        expect(shape.__tag).toEqual('rect');20        expect(shape.__attrs).toHaveProperty('x', dx);21        expect(shape.__attrs).toHaveProperty('y', dy);22      });23    });24  });25  // path-based shapes26  [['cylinder', useWidth, useHeight]].forEach(function ([shapeType, getW, getH]) {27    it(`should add a ${shapeType} shape that renders a properly positioned path element`, function () {28      const mockRender = MockRender();29      const mockSvg = MockSvg();30      addToRender(mockRender);31      [32        [100, 100],33        [123, 45],34        [71, 300],35      ].forEach(function ([width, height]) {36        const shape = mockRender.shapes()[shapeType](mockSvg, { width, height }, {});37        expect(shape.__tag).toEqual('path');38        expect(shape.__attrs).toHaveProperty('d');39      });40    });41  });42  // polygon-based shapes43  [44    [45      'question',46      4,47      function (w, h) {48        return (w + h) * 0.9;49      },50      function (w, h) {51        return (w + h) * 0.9;52      },53    ],54    [55      'hexagon',56      6,57      function (w, h) {58        return w + h / 2;59      },60      useHeight,61    ],62    ['rect_left_inv_arrow', 5, useWidth, useHeight],63    ['rect_right_inv_arrow', 5, useWidth, useHeight],64    ['lean_right', 4, useWidth, useHeight],65    ['lean_left', 4, useWidth, useHeight],66    ['trapezoid', 4, useWidth, useHeight],67    ['inv_trapezoid', 4, useWidth, useHeight],68    ['subroutine', 10, useWidth, useHeight],69  ].forEach(function ([shapeType, expectedPointCount, getW, getH]) {70    it(`should add a ${shapeType} shape that renders a properly translated polygon element`, function () {71      const mockRender = MockRender();72      const mockSvg = MockSvg();73      addToRender(mockRender);74      [75        [100, 100],76        [123, 45],77        [71, 300],78      ].forEach(function ([width, height]) {79        const shape = mockRender.shapes()[shapeType](mockSvg, { width, height }, {});80        const dx = -getW(width, height) / 2;81        const dy = getH(width, height) / 2;82        const points = shape.__attrs.points.split(' ');83        expect(shape.__tag).toEqual('polygon');84        expect(shape.__attrs).toHaveProperty('transform', `translate(${dx},${dy})`);85        expect(points).toHaveLength(expectedPointCount);86      });87    });88  });89});90function MockRender() {91  const shapes = {};92  return {93    shapes() {94      return shapes;95    },96  };97}98function MockSvg(tag, ...args) {99  const children = [];100  const attributes = {};101  return {102    get __args() {103      return args;104    },...

Using AI Code Generation

1import { MockRender } from 'ng-mocks';2import { AppComponent } from './app.component';3describe('AppComponent', () => {4  it('should create the app', () => {5    const fixture = MockRender(AppComponent);6    const app = fixture.debugElement.componentInstance;7    expect(app).toBeTruthy();8  });9});

Using AI Code Generation

1import { MockRender } from 'ng-mocks';2import { AppComponent } from './app.component';3describe('AppComponent', () => {4  it('should create the app', () => {5    const fixture = MockRender(AppComponent);6    const app = fixture.point.componentInstance;7    expect(app).toBeTruthy();8  });9});10import { MockRender } from 'ng-mocks';11import { AppComponent } from './app.component';12describe('AppComponent', () => {13  it('should render title', () => {14    const fixture = MockRender(AppComponent);15    expect(fixture.nativeElement.innerHTML).toContain('Welcome to ng-mocks!');16  });17});

Using AI Code Generation

1import { MockRender } from 'ng-mocks';2describe('AppComponent', () => {3  it('should create the app', () => {4    const fixture = MockRender(AppComponent);5    const app = fixture.debugElement.componentInstance;6    expect(app).toBeTruthy();7  });8});9import { TestBed, async } from '@angular/core/testing';10import { AppComponent } from './app.component';11describe('AppComponent', () => {12  beforeEach(async(() => {13    TestBed.configureTestingModule({14    }).compileComponents();15  }));16  it('should create the app', () => {17    const fixture = TestBed.createComponent(AppComponent);18    const app = fixture.debugElement.componentInstance;19    expect(app).toBeTruthy();20  });21});

Using AI Code Generation

1import { MockRender } from 'ng-mocks';2import { AppComponent } from './app.component';3import { AppModule } from './app.module';4describe('AppComponent', () => {5  it('should create the app', () => {6    const fixture = MockRender(AppComponent, AppModule);7    const app = fixture.debugElement.componentInstance;8    expect(app).toBeTruthy();9  });10});11module.exports = {12  globals: {13    'ts-jest': {14    },15  },16  transform: {17    '^.+\\.(ts|js|html)$': 'ng-mocks-jest',18  },19};20import { MockRender } from 'ng-mocks';21import { AppComponent } from './app.component';22import { AppModule } from './app.module';23describe('AppComponent', () => {24  it('should create the app', () => {25    const fixture = MockRender(AppComponent, AppModule);26    const app = fixture.debugElement.componentInstance;27    expect(app).toBeTruthy();28  });29});30{31}

Using AI Code Generation

1import { MockRender } from 'ng-mocks';2import { MyComponent } from './my.component';3describe('MyComponent', () => {4  it('renders a component', () => {5    const fixture = MockRender(MyComponent);6    expect(fixture.nativeElement.innerHTML).toContain('Hello');7  });8});9import { Component } from '@angular/core';10@Component({11})12export class MyComponent {}13import { ComponentFixture, TestBed } from '@angular/core/testing';14import { MyComponent } from './my.component';15describe('MyComponent', () => {16  let component: MyComponent;17  let fixture: ComponentFixture<MyComponent>;18  beforeEach(() => {19    TestBed.configureTestingModule({20    });21    fixture = TestBed.createComponent(MyComponent);22    component = fixture.componentInstance;23    fixture.detectChanges();24  });25  it('renders a component', () => {26    expect(fixture.nativeElement.innerHTML).toContain('Hello');27  });28});

Using AI Code Generation

1import { MockRender, ngMocks } from 'ng-mocks';2import { AppComponent } from './app.component';3import { AppModule } from './app.module';4describe('AppComponent', () => {5  it('should create the app', () => {6    const fixture = MockRender(AppComponent, AppModule);7    const app = ngMocks.findInstance(AppComponent);8    expect(app).toBeTruthy();9  });10});11import { MockRender, ngMocks } from 'ng-mocks';12import { AppComponent } from './app.component';13import { AppModule } from './app.module';14describe('AppComponent', () => {15  it('should create the app', () => {16    const fixture = MockRender(AppComponent, AppModule);17    const app = ngMocks.findInstance(AppComponent);18    expect(app).toBeTruthy();19  });20});21import { MockRender, ngMocks } from 'ng-mocks';22import { AppComponent } from './app.component';23import { AppModule } from './app.module';24describe('AppComponent', () => {25  it('should create the app', () => {26    const fixture = MockRender(AppComponent, AppModule);27    const app = ngMocks.findInstance(AppComponent);28    expect(app).toBeTruthy();29  });30});31import { MockRender, ngMocks } from 'ng-mocks';32import { AppComponent } from './app.component';33import { AppModule } from './app.module';34describe('AppComponent', () => {35  it('should create the app', () => {36    const fixture = MockRender(AppComponent, AppModule);37    const app = ngMocks.findInstance(AppComponent);38    expect(app).toBeTruthy();39  });40});41import { MockRender, ngMocks } from 'ng-mocks';42import { AppComponent } from './app.component';43import { AppModule } from './app.module';44describe('AppComponent', () => {45  it('should create the app', () => {46    const fixture = MockRender(AppComponent, AppModule);47    const app = ngMocks.findInstance(AppComponent);48    expect(app).toBeTruthy();49  });50});

Using AI Code Generation

1import { Component, OnInit, Input } from '@angular/core';2import { FormGroup } from '@angular/forms';3import { QuestionBase } from '../question-base';4import { QuestionControlService } from '../question-control.service';5@Component({6})7export class DynamicFormComponent implements OnInit {8  @Input() questions: QuestionBase<string>[] = [];9  form: FormGroup;10  payLoad = '';11  constructor(private qcs: QuestionControlService) { }12  ngOnInit() {13    this.form = this.qcs.toFormGroup(this.questions);14  }15  onSubmit() {16    this.payLoad = JSON.stringify(this.form.value);17  }18}19I am trying to write a test for the ngOnInit() method. I am getting an error that says:20describe('DynamicFormComponent

Using AI Code Generation

1import { MockRender } from 'ng-mocks';2describe('MockRender', () => {3  it('should render the component', () => {4    const fixture = MockRender(MyComponent);5    const component = fixture.point.componentInstance;6    expect(component).toBeDefined();7  });8});9import 'ng-mocks';10import { MockBuilder, MockRender } from 'ng-mocks';11describe('MockBuilder', () => {12  it('should render the component', () => {13    const fixture = MockRender(MyComponent);14    const component = fixture.point.componentInstance;15    expect(component).toBeDefined();16  });17});18describe('MockRender', () => {19  beforeEach(() => MockBuilder(MyComponent));20  it('should render the component', () => {21    const fixture = MockRender(MyComponent);22    const component = fixture.point.componentInstance;23    expect(component).toBeDefined();24  });25});26describe('MockRender', () => {27  beforeEach(() => MockBuilder(MyComponent).mock(MyService));28  it('should render the component', () => {29    const fixture = MockRender(MyComponent);30    const component = fixture.point.componentInstance;31    expect(component).toBeDefined();32  });33});34describe('MockRender', () => {35  beforeEach(() => MockBuilder(MyComponent).mock(MyService, () => ({ data: 'test' })));36  it('should render the component', () => {37    const fixture = MockRender(MyComponent);38    const component = fixture.point.componentInstance;39    expect(component).toBeDefined();40  });41});42describe('MockRender', () => {43  beforeEach(() => MockBuilder(MyComponent).mock(MyService, () => ({ data: 'test' })));44  it('should render the component', () => {45    const fixture = MockRender(MyComponent);46    const component = fixture.point.componentInstance;47    expect(component).toBeDefined();48  });49});50describe('MockRender', () => {51  beforeEach(() => MockBuilder(MyComponent).mock(MyService, () => ({ data: 'test' })));52  it('should render the component', () => {53    const fixture = MockRender(MyComponent);54    const component = fixture.point.componentInstance;55    expect(component).toBeDefined();56  });57});58describe('MockRender', () => {59  beforeEach(() => MockBuilder(MyComponent).mock(MyService, () => ({ data: 'test' })));

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