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Paparazzi Alternatives
Similar projects and alternatives to paparazzi
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paparazzi reviews and mentions
- paparazzi 1.3.0 released
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Building Reddit’s design system for Android with Jetpack Compose
Component API tests are written for all components in the library. These are Paparazzi snapshot tests that are parameterized to cover all the combinations of values for the properties in the API of a given component. Additionally, they include as parameters: color theme, layout direction, and optionally other properties that may be relevant to the component under test (e.g., font scale).
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Compose & Paparazzi: Automatically find @Preview composables at runtime
Looks really nice. Sadly, I wasn't able to test it because it doesn't support application module
- Paparazzi 1.2 is out
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How do you guys test the UI of your app?
Curious what you mean by hilt refuses to work and what you have tried? Usually though if I'm testing the UI of the app, I might use paparazzi for screenshot tests because it doesn't have to run the test on device. Then for a UI integration test for navigation and user flows, use espresso and replace the network data sources with mocks which in your case would be with hilt android test rule and test install in annotation .
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Improving snapshot tests with Paparazzi
/** * Finds all files in the components module which have Compose previews * and generates Paparazzi screenshot tests for them. * * The generated tests can then be used to record screenshots with * ./gradlew components:recordPaparazziInternalDebug * * To verify that the current implementation matches the recorded screenshots * ./gradlew components:verifyPaparazziInternalDebug */ fun main() { val path = System.getProperty("user.dir") ?: error("Can't get user dir") // Paparazzi does not currently work in the app module: https://github.com/cashapp/paparazzi/issues/107 // For now this is hardcoded to only check files in the components module. // If we pull our compose files out of the app module to a separate module this code has to be updated. File(path).walk().filter { it.path.contains("/components/src/main/java") && it.extension == "kt" }.forEach { if (it.readText().contains("@Preview")) { processFileWithPreviews(it) } } } /** * Reads the given file, finds the names of all the functions annotated with @Preview * and uses them to generate a Paparazzi test file with one test for each preview. */ private fun processFileWithPreviews(file: File) { val lines = file.readLines() val previewNames = mutableListOf() var saveNextFunctionName = false var packageName = "" lines.forEachIndexed { i, line -> if (i == 0) { packageName = line.split(" ").last() } if (line.contains("@Preview")) { saveNextFunctionName = true } if (saveNextFunctionName && line.startsWith("fun ")) { previewNames += line.split(" ")[1].removeSuffix("()") saveNextFunctionName = false } } val pathString = file.path.replace("src/main", "src/test").split("java").first() + "java" val testFilePath = pathString.toPath() generatePaparazziTest(packageName, file.nameWithoutExtension + "PaparazziTest", testFilePath, previewNames) } fun generatePaparazziTest(packageName: String, fileName: String, path: Path, previewNames: List) { val classBuilder = TypeSpec.classBuilder(fileName) .superclass(PaparazziTest::class) .addAnnotation( AnnotationSpec.builder(Suppress::class) // KotlinPoet does not let us remove redundant public modifiers or Unit return types for the functions, // but we don't mind for generated code as long as the tests work .addMember("\"RedundantVisibilityModifier\", \"RedundantUnitReturnType\"") .build() ) previewNames.forEach { classBuilder.addFunction( FunSpec.builder(it.removeSuffix("Preview").usLocaleDecapitalize()) .addStatement("paparazziRule.snapshot { $it() }") .addAnnotation(Test::class) .build() ) } val testFile = FileSpec.builder(packageName, fileName) .addType(classBuilder.build()) .addFileComment("AUTO-GENERATED FILE by generate_paparazzi_tests.kt\nDO NOT MODIFY") .build() val nioPath = path.toNioPath() testFile.writeTo(nioPath) }
- Do you do test-based capture & publish for QA? (Espresso, JUnit,..)
- Paparazzi 1.0 is out
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Mockito and non-debuggable testBuildTypes
The good thing is, Square got us covered once more, in regards to the flaky emulators, by providing a screenshot-testing library that does not require an emulator: https://cashapp.github.io/paparazzi/
- Most Efficient Way of Testing Layouts on Various Aspect Ratios/Pixel Densities/Viewport/Resolutions
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A note from our sponsor - SaaSHub
www.saashub.com | 24 Apr 2024
Stats
cashapp/paparazzi is an open source project licensed under Apache License 2.0 which is an OSI approved license.
The primary programming language of paparazzi is Kotlin.
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