Notes on how this package can be tested.
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This package can be tested by executing

    sh run-unit-test

in order to confirm its integrity.

Test in `run-unit-test` checks the following:

1. runs tortoize on a typical PDB file in mmCIF format
creating a default output in mmCIF format.

To test manually, run `tortoize` like this (program output will be shown in stdout):

```
tortoize <some pdb file name>
```

To see other options, call `tortoize` with `--help` key.
