fix: Cleanup temporary files generated in tests automatically #2823
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This was referenced Aug 9, 2023
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As I mentioned at #2822, temporary files generated in tests are not deleted automatically.
To fix this issue, this PR introduces
tempfilecrate.https://docs.rs/tempfile/latest/tempfile/index.html
A temporary directory created using
tempfilecrate and files in the temporary directory will be automatically deleted when the correspondingTempDirobject is dropped.This PR affects the tests in
bin/oliand confirmed all the tests passed withcargo test --tests --package oli