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| 1 | +import { TestScheduler } from 'rxjs/testing' |
| 2 | +import { Controller, ControllerProvider, ResourcesNotProvidedError, Builder } from '../../src' |
| 3 | +import { act, getByTestId, render, waitFor } from '@testing-library/react' |
| 4 | +import { tap } from 'rxjs' |
| 5 | + |
| 6 | +class TestController extends Controller<number> { |
| 7 | + constructor(initialValue?: number) { |
| 8 | + super(initialValue ?? 0) |
| 9 | + } |
| 10 | + inc() { |
| 11 | + this.emit(this.state + 1) |
| 12 | + } |
| 13 | + protected compareState(): boolean { |
| 14 | + return false |
| 15 | + } |
| 16 | + reEmit() { |
| 17 | + this.emit(this.state) |
| 18 | + } |
| 19 | +} |
| 20 | + |
| 21 | +it('emit object values every reEmit', () => { |
| 22 | + const testScheduler = new TestScheduler((actual, expected) => { |
| 23 | + return expect(actual).toEqual(expected) |
| 24 | + }) |
| 25 | + const testController = new TestController() |
| 26 | + const triggerMarbles = '-aaaa' |
| 27 | + const triggerValues = { |
| 28 | + a: () => testController.reEmit(), |
| 29 | + } |
| 30 | + |
| 31 | + const expectedMarbles = '-aaaa' |
| 32 | + const expectedValues = { |
| 33 | + a: 0, |
| 34 | + } |
| 35 | + const eventObservable = testController.observable.pipe() |
| 36 | + testScheduler.run(({ expectObservable, cold }) => { |
| 37 | + expectObservable(eventObservable).toBe(expectedMarbles, expectedValues) |
| 38 | + expectObservable(cold(triggerMarbles, triggerValues).pipe(tap((fn) => fn()))) |
| 39 | + }) |
| 40 | +}) |
| 41 | + |
| 42 | +type DisplayRenderedProps = { |
| 43 | + buildWhen?: (prev: number, curr: number) => boolean |
| 44 | + stateComp?: (prev: number, curr: number) => boolean |
| 45 | +} |
| 46 | +const DisplayRendered = ({ buildWhen, stateComp }: DisplayRenderedProps) => { |
| 47 | + return ( |
| 48 | + <Builder source={TestController} buildWhen={buildWhen} stateCompare={stateComp}> |
| 49 | + {(state, controller) => { |
| 50 | + return ( |
| 51 | + <> |
| 52 | + <h1 data-testid='text'>{state}</h1> |
| 53 | + <h1 data-testid='controller'>{controller.constructor.name}</h1> |
| 54 | + </> |
| 55 | + ) |
| 56 | + }} |
| 57 | + </Builder> |
| 58 | + ) |
| 59 | +} |
| 60 | + |
| 61 | +it('buildWhen respected', (done) => { |
| 62 | + const buildWhenFn = jest.fn((prev, curr) => prev === curr) |
| 63 | + const instance = new TestController() |
| 64 | + const { container } = render( |
| 65 | + <ControllerProvider ctor={TestController} source={instance}> |
| 66 | + <DisplayRendered buildWhen={buildWhenFn} /> |
| 67 | + </ControllerProvider>, |
| 68 | + ) |
| 69 | + instance.inc() |
| 70 | + instance.inc() |
| 71 | + instance.inc() |
| 72 | + instance.inc() |
| 73 | + instance.inc() |
| 74 | + expect(buildWhenFn).toHaveBeenCalledTimes(5) |
| 75 | + expect(buildWhenFn.mock.calls[0][0]).toBe(0) |
| 76 | + expect(buildWhenFn.mock.calls[0][1]).toBe(1) |
| 77 | + expect(buildWhenFn.mock.calls[1][0]).toBe(1) |
| 78 | + expect(buildWhenFn.mock.calls[1][1]).toBe(2) |
| 79 | + expect(buildWhenFn.mock.calls[2][0]).toBe(2) |
| 80 | + expect(buildWhenFn.mock.calls[2][1]).toBe(3) |
| 81 | + expect(buildWhenFn.mock.calls[3][0]).toBe(3) |
| 82 | + expect(buildWhenFn.mock.calls[3][1]).toBe(4) |
| 83 | + expect(buildWhenFn.mock.calls[4][0]).toBe(4) |
| 84 | + expect(buildWhenFn.mock.calls[4][1]).toBe(5) |
| 85 | + const rendered = getByTestId(container, 'text') |
| 86 | + const renderedText = rendered.textContent |
| 87 | + const expectedText = '0' |
| 88 | + expect(renderedText).toBe(expectedText) |
| 89 | + done() |
| 90 | +}) |
| 91 | + |
| 92 | +it('rerender on state changed', async () => { |
| 93 | + const instance = new TestController() |
| 94 | + const { container } = render( |
| 95 | + <ControllerProvider ctor={TestController} source={instance}> |
| 96 | + <DisplayRendered /> |
| 97 | + </ControllerProvider>, |
| 98 | + ) |
| 99 | + const rendered = getByTestId(container, 'text') |
| 100 | + const renderedText = rendered.textContent |
| 101 | + const expectedText = '0' |
| 102 | + expect(renderedText).toBe(expectedText) |
| 103 | + act(() => { |
| 104 | + instance.inc() |
| 105 | + instance.inc() |
| 106 | + instance.inc() |
| 107 | + instance.inc() |
| 108 | + instance.inc() |
| 109 | + }) |
| 110 | + await waitFor(() => { |
| 111 | + const rendered = getByTestId(container, 'text') |
| 112 | + const renderedText = rendered.textContent |
| 113 | + const expectedText = '5' |
| 114 | + expect(renderedText).toBe(expectedText) |
| 115 | + }) |
| 116 | +}) |
| 117 | + |
| 118 | +it('specified state compare respected', async () => { |
| 119 | + const stateCompareFn = jest.fn((prev, curr) => prev !== curr) |
| 120 | + const instance = new TestController() |
| 121 | + const { container } = render( |
| 122 | + <ControllerProvider ctor={TestController} source={instance}> |
| 123 | + <DisplayRendered stateComp={stateCompareFn} /> |
| 124 | + </ControllerProvider>, |
| 125 | + ) |
| 126 | + const rendered = getByTestId(container, 'text') |
| 127 | + const renderedText = rendered.textContent |
| 128 | + const expectedText = '0' |
| 129 | + expect(renderedText).toBe(expectedText) |
| 130 | + |
| 131 | + act(() => { |
| 132 | + instance.inc() |
| 133 | + instance.inc() |
| 134 | + instance.inc() |
| 135 | + instance.inc() |
| 136 | + }) |
| 137 | + await waitFor(() => { |
| 138 | + expect(stateCompareFn).toHaveBeenCalledTimes(4) |
| 139 | + expect(stateCompareFn.mock.calls[0][0]).toBe(0) |
| 140 | + expect(stateCompareFn.mock.calls[0][1]).toBe(1) |
| 141 | + expect(stateCompareFn.mock.calls[1][0]).toBe(0) |
| 142 | + expect(stateCompareFn.mock.calls[1][1]).toBe(2) |
| 143 | + expect(stateCompareFn.mock.calls[2][0]).toBe(0) |
| 144 | + expect(stateCompareFn.mock.calls[2][1]).toBe(3) |
| 145 | + expect(stateCompareFn.mock.calls[3][0]).toBe(0) |
| 146 | + expect(stateCompareFn.mock.calls[3][1]).toBe(4) |
| 147 | + const rendered = getByTestId(container, 'text') |
| 148 | + const renderedText = rendered.textContent |
| 149 | + const expectedText = '0' |
| 150 | + expect(renderedText).toBe(expectedText) |
| 151 | + }) |
| 152 | +}) |
| 153 | + |
| 154 | +it('useBuilder cto return [state, controller]', () => { |
| 155 | + const instance = new TestController(5) |
| 156 | + const { container } = render( |
| 157 | + <ControllerProvider ctor={TestController} source={instance}> |
| 158 | + <DisplayRendered /> |
| 159 | + </ControllerProvider>, |
| 160 | + ) |
| 161 | + const renderedCount = getByTestId(container, 'text') |
| 162 | + const renderedText = renderedCount.textContent |
| 163 | + const expectedText = '5' |
| 164 | + expect(renderedText).toBe(expectedText) |
| 165 | + |
| 166 | + const renderedController = getByTestId(container, 'controller') |
| 167 | + const renderedControllerText = renderedController.textContent |
| 168 | + const expectedControllerText = 'TestController' |
| 169 | + expect(renderedControllerText).toBe(expectedControllerText) |
| 170 | +}) |
| 171 | + |
| 172 | +it('throw error when not provided ctor', async () => { |
| 173 | + jest.spyOn(console, 'error').mockImplementation(() => jest.fn()) |
| 174 | + |
| 175 | + const renderer = () => { |
| 176 | + render(<DisplayRendered />) |
| 177 | + } |
| 178 | + await waitFor(() => expect(renderer).toThrow(ResourcesNotProvidedError)) |
| 179 | + jest.restoreAllMocks() |
| 180 | +}) |
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