Add test for --since

[cruessler]

I wanted to add the following test for AsTime, but it fails with the following message:

error: invalid value ''2 weeks ago'' for '--since <ARG>': Date string can not be parsed

Am I using AsTime incorrectly or is there an issue with the way the test is written?

I initially created the test to be part of #1858.

[Byron]

That's interesting!

I know there are tests for 2.weeks.ago, but I thought space should definitely work as well.

[cruessler]

My first hunch was that it had to do with ' as the error message contained 2 '' in a row in front and after the string, but I didn’t investigate further.

[cruessler]

There was an issue with the way the test was written (now it passes). Cmd::parse_from does not parse quoted strings, that is handled by the shell. See clap-rs/clap#1315.

[Byron]

Yes, that makes sense.
Thanks for figuring out the fix so we can have these tests.