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Add Harness::new_eframe and TestRenderer trait (#5539)

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Co-authored-by: Andreas Reich <r_andreas2@web.de>
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lucasmerlin
2025-01-02 17:48:39 +01:00
committed by GitHub
parent ee4ab08c8a
commit 46b58e5bcc
28 changed files with 593 additions and 180 deletions
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4
crates/egui_kittest/README.md
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@@ -29,13 +29,13 @@ fn main() {
// You can even render the ui and do image snapshot tests
#[cfg(all(feature = "wgpu", feature = "snapshot"))]
harness.wgpu_snapshot("readme_example");
harness.snapshot("readme_example");
}
```
## Snapshot testing
There is a snapshot testing feature. To create snapshot tests, enable the `snapshot` and `wgpu` features.
Once enabled, you can call `Harness::wgpu_snapshot` to render the ui and save the image to the `tests/snapshots` directory.
Once enabled, you can call `Harness::snapshot` to render the ui and save the image to the `tests/snapshots` directory.
To update the snapshots, run your tests with `UPDATE_SNAPSHOTS=true`, so e.g. `UPDATE_SNAPSHOTS=true cargo test`.
Running with `UPDATE_SNAPSHOTS=true` will still cause the tests to fail, but on the next run, the tests should pass.