Shorten generated Paparazzi filenames #419
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By default, Paparazzi concatenates the package name of the test class, the test class name, the test function name, the test function parameters, and the `name` value passed to the `snapshot()` function. On some systems this can cause a `java.io.FileNotFoundException (File name too long)`. This is a commonly encountered issue and an [issue has been filed against the Paparazzi repo](cashapp/paparazzi#1085) to allow overriding this default filename logic. Until then, we can take smaller measures to shorten the file name: 1. Use an "Impl" suffix for the generated concrete test class 2. Don't pass a `name` argument to `snapshot()`, which results in redundancy. For example, instead of ``` com.myapplication.test.compose.paparazzi_PaparazziShowkaseScreenshotTest_PaparazziShowkaseTest_test_previews[GroupName**ComponentName**StyleName,Pixel5,Ltr,DEFAULT]_GroupName**ComponentName**StyleName.temp.png ``` this will now generate ``` ``` com.myapplication.test.compose.paparazzi_PaparazziShowkaseScreenshotTestImpl_test_previews[GroupName**ComponentName**StyleName,Pixel5,Ltr,DEFAULT].temp.png ```
elihart
approved these changes
Sep 4, 2025
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Changes included in #421 |
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By default, Paparazzi concatenates the package name of the test class, the test class name, the test function name, the test function parameters, and the
namevalue passed to thesnapshot()function. On some systems this can cause ajava.io.FileNotFoundException (File name too long).This is a commonly encountered issue and an issue has been filed against the Paparazzi repo to allow overriding this default filename logic. Until then, we can take smaller measures to shorten the file name:
nameargument tosnapshot(), which results in redundancy. For example, instead ofthis will now generate