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react-native-svg/fabric-example/patches/react-native-view-shot+4.0.0-alpha.2.patch
Bartosz Stefańczyk a089cc2efc feat: e2e snapshot tests (#2338)
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# Summary

This PR adds E2E tests based on view screenshots done via
`react-native-view-shot`. It only works with devices that have their
[pixel ratio](https://reactnative.dev/docs/pixelratio) equal `3`. If you
want to use device with different pixel ratio, you need to adjust it in
`e2e/generateReferences.ts` viewport and regenerate reference images
(see below).

Steps to run tests:
- Run Metro server for example app via `yarn start` in example app's
directory
- Run `example` app on platform of your choice (currently only Android &
iOS are supported) via `yarn android` or `yarn ios` in example app's
directory
- Run `yarn e2e` in project's root directory to start Jest server
- Select `E2E` tab in example app
- Wait for tests to finish
- You can see test results, as well as diffs (actual rendered svg vs
reference image) in `e2e/diffs` directory

Steps to add new test cases:
- Put SVG of your choice to `e2e/cases` directory
- Run `yarn generateE2eRefrences`, this will open headless chrome
browser via `puppeteer` and snapshot all rendered SVGs to .png files and
later use them as reference in tests
- You should see new .png files in `e2e/references`
- When you run E2E tests again, it will use new test case(s) you've
added

## Test Plan


https://github.com/software-mansion/react-native-svg/assets/41289688/24ee5447-ce9a-43b6-9dde-76229d25a30a


https://github.com/software-mansion/react-native-svg/assets/41289688/71d1873f-8155-4494-80bd-e4c1fa72a065


### What's required for testing (prerequisites)?
See Summary

### What are the steps to reproduce (after prerequisites)?
See Summary

## Compatibility

| OS      | Implemented |
| ------- | :---------: |
| iOS     |    	     |
| Android |         |
| Web | 			 |
## Checklist



<!-- Check completed item, when applicable, via: [X] -->

- [X] I have tested this on a device and a simulator
- [x] I added documentation in `README.md`
- [X] I updated the typed files (typescript)
- [X] I added a test for the API in the `__tests__` folder

---------

Co-authored-by: bohdanprog <bohdan.artiukhov@swmansion.com>
Co-authored-by: Jakub Grzywacz <jakub.grzywacz@swmansion.com>
2024-08-23 13:29:38 +02:00

51 lines
2.7 KiB
Diff

diff --git a/node_modules/react-native-view-shot/ios/RNViewShot.m b/node_modules/react-native-view-shot/ios/RNViewShot.m
index bd55b92..6a20e9d 100644
--- a/node_modules/react-native-view-shot/ios/RNViewShot.m
+++ b/node_modules/react-native-view-shot/ios/RNViewShot.m
@@ -106,7 +106,7 @@ - (dispatch_queue_t)methodQueue
scrollView.frame = CGRectMake(0, 0, scrollView.contentSize.width, scrollView.contentSize.height);
}
- UIGraphicsImageRenderer *renderer = [[UIGraphicsImageRenderer alloc] initWithSize:size];
+ UIGraphicsBeginImageContextWithOptions(size, NO, 0);
if (renderInContext) {
// this comes with some trade-offs such as inability to capture gradients or scrollview's content in full but it works for large views
@@ -117,8 +117,8 @@ - (dispatch_queue_t)methodQueue
// this doesn't work for large views and reports incorrect success even though the image is blank
success = [rendered drawViewHierarchyInRect:(CGRect){CGPointZero, size} afterScreenUpdates:YES];
}
-
- UIImage *image = [renderer imageWithActions:^(UIGraphicsImageRendererContext * _Nonnull rendererContext) {}];
+ UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
+ UIGraphicsEndImageContext();
if (snapshotContentContainer) {
// Restore scroll & frame
@@ -152,11 +152,11 @@ - (dispatch_queue_t)methodQueue
NSString *res = nil;
if ([result isEqualToString:@"base64"]) {
// Return as a base64 raw string
- res = [data base64EncodedStringWithOptions: 0];
+ res = [data base64EncodedStringWithOptions: NSDataBase64EncodingEndLineWithLineFeed];
}
else if ([result isEqualToString:@"data-uri"]) {
// Return as a base64 data uri string
- NSString *base64 = [data base64EncodedStringWithOptions: 0];
+ NSString *base64 = [data base64EncodedStringWithOptions: NSDataBase64EncodingEndLineWithLineFeed];
NSString *imageFormat = ([format isEqualToString:@"jpg"]) ? @"jpeg" : format;
res = [NSString stringWithFormat:@"data:image/%@;base64,%@", imageFormat, base64];
}
diff --git a/node_modules/react-native-view-shot/src/specs/NativeRNViewShot.ts b/node_modules/react-native-view-shot/src/specs/NativeRNViewShot.ts
index a6f4c00..1e9e6ce 100644
--- a/node_modules/react-native-view-shot/src/specs/NativeRNViewShot.ts
+++ b/node_modules/react-native-view-shot/src/specs/NativeRNViewShot.ts
@@ -2,7 +2,7 @@ import type { TurboModule } from 'react-native';
import { TurboModuleRegistry } from 'react-native';
export interface Spec extends TurboModule {
- releaseCapture: () => string;
+ releaseCapture: (uri: string) => void;
captureRef: (tag: number, options: Object) => Promise<string>
captureScreen: (options: Object) => Promise<string>;
}