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plugin-select-readme Describe how to mock a selector return value #170

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plugin-select-readme Describe how to mock a selector return value #170

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plugin-select-readme Describe how to mock a selector return value
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plugin-select-readme Use Enzyme mount instead of cusom helper tool
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plugin-select-readme Send just props
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37 changes: 37 additions & 0 deletions packages/plugin-select/README.md
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Expand Up @@ -118,6 +118,43 @@ The first one is setCreatorOfStateSelector where you can redefine your own selec

The second one is setHoistStaticMethod where you can override [hoist-non-react-statics](https://www.npmjs.com/package/hoist-non-react-statics) module like [example](https://github.com/seznam/IMA.js-plugins/blob/master/packages/plugin-select/src/select/__tests__/SelectSpec.js#L155).

## How to mock in tests

To test a component wrapped in `select`, mock `context.$Utils.$PageStateManager.getState()` and `context.$Utils.$Dispatcher.listen()`.

Example:

```js

import { mount } from 'enzyme';
import { PageContext } from '@ima/react-page-renderer';

const context = {
$Utils: {
$PageStateManager: {
getState: jest.fn(),
},
$Dispatcher: {
listen: () => {}
},
},
};

//..

const wrapper = mount(
React.createElement(
PageContext.Provider,
{ value: context },
React.createElement(MyComponent, props)
)
);

context.$Utils.$PageStateManager.getState.mockReturnValue({foo: 'bar'})

```


## IMA.js

The [IMA.js](https://imajs.io) is an application development stack for developing
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