1 | ;
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2 | var infinite_scroll_1 = require('./infinite-scroll');
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3 | var core_1 = require('@angular/core');
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4 | describe('Infinite Scroll Directive', function () {
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5 | // const zone = new NgZone({ enableLongStackTrace: false });
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6 | var isScrollingDown = true;
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7 | var zoneSpy, scrollResolverSpy, scrollRegisterSpy, positionResolverSpy;
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8 | var positionFactoryMock = {
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9 | create: function () { return positionResolverSpy; }
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10 | };
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11 | var createMockElement = function () {
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12 | var mockedElement = new core_1.ElementRef(document.createElement('div'));
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13 | return mockedElement;
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14 | };
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15 | var createInfiniteScroll = function (mockedElement) {
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16 | mockedElement = mockedElement || createMockElement();
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17 | return new infinite_scroll_1.InfiniteScroll(mockedElement, zoneSpy, positionFactoryMock, scrollRegisterSpy, scrollResolverSpy);
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18 | };
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19 | beforeEach(function () {
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20 | zoneSpy = jasmine.createSpyObj('zone', ['run']);
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21 | scrollResolverSpy = {
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22 | getScrollStats: function () {
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23 | return { shouldScroll: true, isScrollingDown: isScrollingDown };
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24 | }
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25 | };
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26 | scrollRegisterSpy = jasmine.createSpyObj('register', ['attachEvent']);
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27 | positionResolverSpy = jasmine.createSpyObj('pos', ['create', 'container']);
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28 | });
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29 | it('should create an instance of the directive', function () {
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30 | var actual = createInfiniteScroll();
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31 | expect(actual).toBeDefined();
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32 | });
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33 | it('should have default @Input properties values', function () {
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34 | var directive = createInfiniteScroll();
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35 | var expectedInputs = {
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36 | _distanceDown: 2,
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37 | _distanceUp: 1.5,
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38 | _throttle: 300,
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39 | scrollWindow: true,
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40 | _immediate: false,
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41 | _horizontal: false,
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42 | _alwaysCallback: false,
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43 | _disabled: false,
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44 | _container: null
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45 | };
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46 | Object.keys(expectedInputs).forEach(function (input) {
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47 | return expect(directive[input]).toEqual(expectedInputs[input]);
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48 | });
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49 | });
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50 | it('should trigger the onScrollDown event when scroll has passed _distancedDown', function () {
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51 | var directive = createInfiniteScroll();
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52 | var container = {
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53 | height: 0,
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54 | scrolledUntilNow: 0,
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55 | totalToScroll: 0,
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56 | };
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57 | spyOn(directive, 'onScrollDown');
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58 | directive.ngOnInit();
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59 | directive.handleOnScroll(container);
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60 | var actual = directive.onScrollDown;
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61 | expect(actual).toHaveBeenCalled();
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62 | });
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63 | it('should trigger the onScrollUp event when scroll has passed _distanceUp', function () {
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64 | var directive = createInfiniteScroll();
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65 | var container = {
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66 | height: 0,
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67 | scrolledUntilNow: 0,
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68 | totalToScroll: 0,
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69 | };
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70 | spyOn(directive, 'onScrollUp');
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71 | directive.ngOnInit();
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72 | isScrollingDown = false;
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73 | directive.handleOnScroll(container);
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74 | var actual = directive.onScrollUp;
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75 | expect(actual).toHaveBeenCalled();
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76 | });
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77 | it('should disable the scroller', function () {
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78 | var directive = createInfiniteScroll();
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79 | var container = {
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80 | height: 0,
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81 | scrolledUntilNow: 0,
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82 | totalToScroll: 0,
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83 | };
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84 | spyOn(directive, 'onScrollDown');
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85 | directive.ngOnInit();
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86 | directive._disabled = true;
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87 | directive.handleOnScroll(container);
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88 | var actual = directive.onScrollDown;
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89 | expect(actual).not.toHaveBeenCalled();
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90 | });
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91 | describe('resolving container', function () {
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92 | var directive;
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93 | var mockedElement;
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94 | var container = {
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95 | height: 0,
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96 | scrolledUntilNow: 0,
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97 | totalToScroll: 0,
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98 | };
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99 | beforeEach(function () {
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100 | mockedElement = createMockElement();
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101 | directive = createInfiniteScroll(mockedElement);
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102 | spyOn(positionFactoryMock, 'create').and.callThrough();
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103 | });
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104 | describe('when container input is defined', function () {
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105 | describe('when css selector is used', function () {
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106 | beforeEach(function () {
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107 | spyOn(document, 'querySelector').and.returnValue(container);
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108 | directive._container = '.test';
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109 | directive.ngOnInit();
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110 | });
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111 | it('should find element in DOM', function () {
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112 | expect(document.querySelector).toHaveBeenCalledWith('.test');
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113 | });
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114 | it('should return container', function () {
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115 | expect(positionFactoryMock.create)
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116 | .toHaveBeenCalledWith(jasmine.objectContaining({ windowElement: container }));
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117 | });
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118 | });
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119 | describe('when container is passed directly', function () {
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120 | beforeEach(function () {
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121 | directive._container = container;
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122 | directive.ngOnInit();
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123 | });
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124 | it('should return container', function () {
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125 | expect(positionFactoryMock.create)
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126 | .toHaveBeenCalledWith(jasmine.objectContaining({ windowElement: container }));
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127 | });
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128 | });
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129 | });
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130 | describe('when container input is not defined', function () {
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131 | describe('when scrollWindow is true', function () {
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132 | beforeEach(function () {
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133 | directive.scrollWindow = true;
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134 | directive.ngOnInit();
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135 | });
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136 | it('should return window', function () {
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137 | expect(positionFactoryMock.create)
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138 | .toHaveBeenCalledWith(jasmine.objectContaining({ windowElement: window }));
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139 | });
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140 | });
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141 | describe('when scrollWindow is false', function () {
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142 | beforeEach(function () {
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143 | directive.scrollWindow = false;
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144 | directive.ngOnInit();
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145 | });
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146 | it('should return current element', function () {
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147 | expect(positionFactoryMock.create)
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148 | .toHaveBeenCalledWith(jasmine.objectContaining({ windowElement: mockedElement }));
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149 | });
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150 | });
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151 | });
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152 | });
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153 | });
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{\n  async,\n  inject\n} from '@angular/core/testing';\nimport { InfiniteScroll } from './infinite-scroll';\nimport { AxisResolverFactory } from './axis-resolver';\nimport { PositionResolverFactory } from './position-resolver';\nimport { ScrollRegister } from './scroll-register';\nimport { ScrollResolver } from './scroll-resolver';\n\nimport { ElementRef, NgZone, SimpleChanges, SimpleChange } from '@angular/core';\n\ndescribe('Infinite Scroll Directive', () => {\n  // const zone = new NgZone({ enableLongStackTrace: false });\n  let isScrollingDown = true;\n  let zoneSpy: any, scrollResolverSpy: any, scrollRegisterSpy: any, positionResolverSpy: any;\n  const positionFactoryMock: any =  {\n    create: () => positionResolverSpy\n  };\n  const createMockElement = () => {\n    const mockedElement: ElementRef = new ElementRef(document.createElement('div'));\n    return mockedElement;\n  };\n  const createInfiniteScroll = (mockedElement?: any) => {\n    mockedElement = mockedElement || createMockElement();\n    return new InfiniteScroll(\n      mockedElement,\n      zoneSpy,\n      positionFactoryMock,\n      scrollRegisterSpy,\n      scrollResolverSpy\n    );\n  };\n\n  beforeEach(() =>{\n    zoneSpy = jasmine.createSpyObj('zone', ['run']);\n    scrollResolverSpy = {\n      getScrollStats: () => {\n        return { shouldScroll: true, isScrollingDown };\n      }\n    };\n    scrollRegisterSpy = jasmine.createSpyObj('register', ['attachEvent'])\n    positionResolverSpy = jasmine.createSpyObj('pos', ['create', 'container']);\n  });\n\n  it('should create an instance of the directive', () => {\n    const actual = createInfiniteScroll();\n    expect(actual).toBeDefined();\n  });\n\n  it('should have default @Input properties values', () => {\n    const directive = createInfiniteScroll();\n    const expectedInputs: Object = {\n      _distanceDown: 2,\n      _distanceUp: 1.5,\n      _throttle: 300,\n      scrollWindow: true,\n      _immediate: false,\n      _horizontal: false,\n      _alwaysCallback: false,\n      _disabled: false,\n      _container: null\n    };\n\n    Object.keys(expectedInputs).forEach(input =>\n      expect(directive[input]).toEqual(expectedInputs[input]));\n  });\n\n  it('should trigger the onScrollDown event when scroll has passed _distancedDown', () => {\n    const directive = createInfiniteScroll();\n    const container = {\n      height: 0,\n      scrolledUntilNow: 0,\n      totalToScroll: 0,\n    }\n    spyOn(directive, 'onScrollDown');\n    directive.ngOnInit();\n    directive.handleOnScroll(container)\n    const actual = directive.onScrollDown;\n    expect(actual).toHaveBeenCalled();\n  });\n\n  it('should trigger the onScrollUp event when scroll has passed _distanceUp', () => {\n    const directive = createInfiniteScroll();\n    const container = {\n      height: 0,\n      scrolledUntilNow: 0,\n      totalToScroll: 0,\n    };\n    spyOn(directive, 'onScrollUp');\n    directive.ngOnInit();\n    isScrollingDown = false;\n    directive.handleOnScroll(container);\n    const actual = directive.onScrollUp;\n    expect(actual).toHaveBeenCalled();\n  });\n\n  it('should disable the scroller', () => {\n    const directive = createInfiniteScroll();\n    const container = {\n      height: 0,\n      scrolledUntilNow: 0,\n      totalToScroll: 0,\n    }\n    spyOn(directive, 'onScrollDown');\n    directive.ngOnInit();\n    directive._disabled = true;\n    directive.handleOnScroll(container);\n    const actual = directive.onScrollDown;\n    expect(actual).not.toHaveBeenCalled();\n  });\n\n  describe('resolving container', () => {\n    let directive: InfiniteScroll;\n    let mockedElement: ElementRef;\n    const container = {\n      height: 0,\n      scrolledUntilNow: 0,\n      totalToScroll: 0,\n    };\n\n    beforeEach(() => {\n      mockedElement = createMockElement();\n      directive = createInfiniteScroll(mockedElement);\n      spyOn(positionFactoryMock, 'create').and.callThrough();\n    });\n\n    describe('when container input is defined', () => {\n      describe('when css selector is used', () => {\n        beforeEach(() => {\n          spyOn(document, 'querySelector').and.returnValue(container);\n          directive._container = '.test';\n          directive.ngOnInit();\n        });\n\n        it('should find element in DOM', () => {\n          expect(document.querySelector).toHaveBeenCalledWith('.test');\n        });\n\n        it('should return container', () => {\n          expect(positionFactoryMock.create)\n              .toHaveBeenCalledWith(jasmine.objectContaining({windowElement: container}));\n        });\n      });\n\n      describe('when container is passed directly', () => {\n        beforeEach(() => {\n          directive._container = container;\n          directive.ngOnInit();\n        });\n\n        it('should return container', () => {\n          expect(positionFactoryMock.create)\n              .toHaveBeenCalledWith(jasmine.objectContaining({windowElement: container}));\n        });\n      });\n    });\n\n    describe('when container input is not defined', () => {\n      describe('when scrollWindow is true', () => {\n        beforeEach(() => {\n          directive.scrollWindow = true;\n          directive.ngOnInit();\n        });\n\n        it('should return window', () => {\n          expect(positionFactoryMock.create)\n              .toHaveBeenCalledWith(jasmine.objectContaining({windowElement: window}));\n        });\n      });\n\n      describe('when scrollWindow is false', () => {\n        beforeEach(() => {\n          directive.scrollWindow = false;\n          directive.ngOnInit();\n        });\n\n        it('should return current element', () => {\n          expect(positionFactoryMock.create)\n              .toHaveBeenCalledWith(jasmine.objectContaining({windowElement: mockedElement}));\n        });\n      });\n    });\n  });\n});\n\ninterface DecoratorInvocation {\n  type: Function;\n  args?: any[];\n}\n"]} |
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