# LibreOfficeKit tilebench joining tests
This folder contain documents to run through `tilebench --join` to detect problems. To run the tests, simply invoke:
bin/run tilebench $PWD/instdir/program libreofficekit/qa/data/join/<filename> --join
After the tests are complete, you may see an output like this:
```
Failed 81 joins
Zoom 0.5 bad tiles: 23 with 5637 mismatching pixels
Zoom 0.6 bad tiles: 12 with 1341 mismatching pixels
...
Zoom 2 bad tiles: 3 with 1675 mismatching pixels
```
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