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25639176ff
Summary:
This change only affects tests run with Jest. `require('/images/image1.png')` will be replaced with
```
Object {
"testUri": "relative/path/to/images/image1.png",
}
```
in the Jest snapshot instead of always being 1 returned by RelativeImageStub. This change makes it possible to test conditional asset loading in components.
The problem with this change is that it will probably break a lot of existing snapshots, but that should be easily fixed when a project updates to a new version of React Native by running `jest -u` to update all snapshots.
A component can have conditional asset loading based on its props, this logic would be nice to test with Jest snapshots. This problem has been discussed in https://github.com/facebook/jest/issues/2838.
* **Who does this affect**: Everyone using `Image` in Jest snapshots
* **How to migrate**: Running `jest -u` will update the snapshots, the snapshots should be reviewed that they are correct.
* **Why make this breaking change**: It enables testing of conditional asset loading.
* **Severity (number of people affected x effort)**: Low.
Closes https://github.com/facebook/react-native/pull/13319
Reviewed By: rafeca
Differential Revision: D5708180
Pulled By: mjesun
fbshipit-source-id: 16ac42004d597db08545a21d4fffe95c5ee7e21f
27 lines
742 B
JSON
27 lines
742 B
JSON
{
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"haste": {
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"defaultPlatform": "ios",
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"platforms": ["android", "ios", "native"],
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"providesModuleNodeModules": [
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"react-native"
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]
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},
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"moduleNameMapper": {
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"^React$": "<rootDir>/node_modules/react"
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},
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"modulePathIgnorePatterns": [
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"<rootDir>/node_modules/react-native/Libraries/react-native/"
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],
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"transform": {
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"^.+\\.js$": "babel-jest",
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"^[./a-zA-Z0-9$_-]+\\.(bmp|gif|jpg|jpeg|png|psd|svg|webp)$": "<rootDir>/node_modules/react-native/jest/assetFileTransformer.js"
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},
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"transformIgnorePatterns": [
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"node_modules/(?!(jest-)?react-native|react-clone-referenced-element)"
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],
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"setupFiles": [
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"<rootDir>/node_modules/react-native/jest/setup.js"
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],
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"testEnvironment": "node"
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}
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