1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
/**
* Test injectors
*/
import { memoryHistory } from 'react-router-dom';
import { put } from 'redux-saga/effects';
import renderer from 'react-test-renderer';
import { render } from 'react-testing-library';
import React from 'react';
import { Provider } from 'react-redux';
import configureStore from '../../configureStore';
import injectSaga, { useInjectSaga } from '../injectSaga';
import * as sagaInjectors from '../sagaInjectors';
// Fixtures
const Component = () => null;
function* testSaga() {
yield put({ type: 'TEST', payload: 'yup' });
}
describe('injectSaga decorator', () => {
let store;
let injectors;
let ComponentWithSaga;
beforeAll(() => {
sagaInjectors.default = jest.fn().mockImplementation(() => injectors);
});
beforeEach(() => {
store = configureStore({}, memoryHistory);
injectors = {
injectSaga: jest.fn(),
ejectSaga: jest.fn(),
};
ComponentWithSaga = injectSaga({
key: 'test',
saga: testSaga,
mode: 'testMode',
})(Component);
sagaInjectors.default.mockClear();
});
it('should inject given saga, mode, and props', () => {
const props = { test: 'test' };
renderer.create(
<Provider store={store}>
<ComponentWithSaga {...props} />
</Provider>,
);
expect(injectors.injectSaga).toHaveBeenCalledTimes(1);
expect(injectors.injectSaga).toHaveBeenCalledWith(
'test',
{ saga: testSaga, mode: 'testMode' },
props,
);
});
it('should eject on unmount with a correct saga key', () => {
const props = { test: 'test' };
const renderedComponent = renderer.create(
<Provider store={store}>
<ComponentWithSaga {...props} />
</Provider>,
);
renderedComponent.unmount();
expect(injectors.ejectSaga).toHaveBeenCalledTimes(1);
expect(injectors.ejectSaga).toHaveBeenCalledWith('test');
});
it('should set a correct display name', () => {
expect(ComponentWithSaga.displayName).toBe('withSaga(Component)');
expect(
injectSaga({ key: 'test', saga: testSaga })(() => null).displayName,
).toBe('withSaga(Component)');
});
it('should propagate props', () => {
const props = { testProp: 'test' };
const renderedComponent = renderer.create(
<Provider store={store}>
<ComponentWithSaga {...props} />
</Provider>,
);
const {
props: { children },
} = renderedComponent.getInstance();
expect(children.props).toEqual(props);
});
});
describe('useInjectSaga hook', () => {
let store;
let injectors;
let ComponentWithSaga;
beforeAll(() => {
sagaInjectors.default = jest.fn().mockImplementation(() => injectors);
});
beforeEach(() => {
store = configureStore({}, memoryHistory);
injectors = {
injectSaga: jest.fn(),
ejectSaga: jest.fn(),
};
ComponentWithSaga = () => {
useInjectSaga({
key: 'test',
saga: testSaga,
mode: 'testMode',
});
return null;
};
sagaInjectors.default.mockClear();
});
it('should inject given saga and mode', () => {
const props = { test: 'test' };
render(
<Provider store={store}>
<ComponentWithSaga {...props} />
</Provider>,
);
expect(injectors.injectSaga).toHaveBeenCalledTimes(1);
expect(injectors.injectSaga).toHaveBeenCalledWith('test', {
saga: testSaga,
mode: 'testMode',
});
});
it('should eject on unmount with a correct saga key', () => {
const props = { test: 'test' };
const { unmount } = render(
<Provider store={store}>
<ComponentWithSaga {...props} />
</Provider>,
);
unmount();
expect(injectors.ejectSaga).toHaveBeenCalledTimes(1);
expect(injectors.ejectSaga).toHaveBeenCalledWith('test');
});
});