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import UtilService from './util.service'; |
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2
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3
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describe('src/core/service/util.service.spec.js', () => { |
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4
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describe('moveItem', () => { |
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5
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let entity = new MutationObserver(() => {}); |
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6
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7
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beforeEach(() => { |
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8
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entity = [ |
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9
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{ id: 1 }, |
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10
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{ id: 2 }, |
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11
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{ id: 3 }, |
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12
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{ id: 4 }, |
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13
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]; |
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14
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}); |
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15
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16
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it('should move the item correctly', () => { |
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const oldIndex = 1; |
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18
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const newIndex = 3; |
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19
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20
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UtilService.moveItem(entity, oldIndex, newIndex); |
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21
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22
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expect(entity).toEqual([ |
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23
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{ id: 1 }, |
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24
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{ id: 3 }, |
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{ id: 4 }, |
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{ id: 2 }, |
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27
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]); |
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28
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}); |
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29
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30
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it('should not move the item if the new index is null', () => { |
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const oldIndex = 2; |
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32
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const newIndex = null; |
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33
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34
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UtilService.moveItem(entity, oldIndex, newIndex); |
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35
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36
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expect(entity).toEqual([ |
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37
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{ id: 1 }, |
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38
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{ id: 2 }, |
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39
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{ id: 4 }, |
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40
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{ id: 3 }, |
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41
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]); |
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42
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}); |
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43
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44
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it('should not move the item if the old index is out of bounds', () => { |
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const oldIndex = -1; |
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const newIndex = 2; |
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47
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48
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UtilService.moveItem(entity, oldIndex, newIndex); |
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49
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50
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expect(entity).toEqual([ |
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51
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{ id: 1 }, |
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52
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{ id: 2 }, |
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53
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{ id: 3 }, |
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54
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{ id: 4 }, |
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55
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]); |
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56
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}); |
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57
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58
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it('should not move the item if the new index is the same as the old index', () => { |
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59
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const oldIndex = 2; |
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60
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const newIndex = 2; |
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61
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62
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UtilService.moveItem(entity, oldIndex, newIndex); |
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63
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64
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expect(entity).toEqual([ |
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65
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{ id: 1 }, |
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66
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{ id: 2 }, |
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67
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{ id: 3 }, |
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68
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{ id: 4 }, |
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69
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]); |
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70
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}); |
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71
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72
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it('should not move the item if it does not exist', () => { |
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const oldIndex = 10; |
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74
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const newIndex = 2; |
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75
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76
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UtilService.moveItem(entity, oldIndex, newIndex); |
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77
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78
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expect(entity).toEqual([ |
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79
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{ id: 1 }, |
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80
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{ id: 2 }, |
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81
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{ id: 3 }, |
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82
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{ id: 4 }, |
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83
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]); |
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84
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}); |
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85
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86
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it('should not move the item if entity does not exist', () => { |
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87
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entity = [null, 1, null]; |
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88
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const oldIndex = 0; |
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89
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const newIndex = 1; |
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90
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91
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UtilService.moveItem(entity, oldIndex, newIndex); |
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92
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93
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expect(entity).toEqual([null, 1, null]); |
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94
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}); |
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95
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}); |
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96
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}); |
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97
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98
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This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed.
To learn more about declaring variables in Javascript, see the MDN.