Minor improvements

[kapitalisman]

Some minor improvements:

• The test:coverage command was measuring the coverage of the tests themselves.
• Using a simple string comparison instead of strtobool.

[nickjj]

Hi,

Thanks, good catch with test coverage.

What do you think about splitting out the test coverage change into its own PR? I'm open to merging that.

I'm not sure if I'm ready to drop strtobool yet because in larger projects it's a handy function to have available. While your patch does the same thing logically, it's a bit lower level and not as convenient / flexible IMO.

[kapitalisman]

I removed the last commit, so now only the test coverage part remains

[nickjj]

Thanks!