The problem is the assert in laltools-partial_gnatpp.adb Extract_Original_Selection_From_Output. The code does not require the restriction that the assert tries to impose (it should use 'length, not 'size). Deleting the assert allows the test to succeed.
range_formatting_02.tgz.txt
The range formatting request fails with:
[ALS.MAIN] Range_Formatting_Response: Response 4 Error [ALS.OUT] {"jsonrpc":"2.0","id":4,"error":{"code":-32603,"message":""}}
The problem is the assert in laltools-partial_gnatpp.adb Extract_Original_Selection_From_Output. The code does not require the restriction that the assert tries to impose (it should use 'length, not 'size). Deleting the assert allows the test to succeed.