Add md5checksum

[netmarkjp]

add have_md5checksum matcher for md5 checksum check.

sample use case: check deployment of latest license file with binary format.

[mizzy]

Which is better do you think?

• have_md5checksum
• match_md5checksum

[netmarkjp]

I think match_md5checksum is better.

Shuld I change name and pull-request again?

[mizzy]

Thanks for your answer.I think so, too.

You don't need to send a pull request-again.

Only you have to do is change your code and push your code to this branch.

Your change will be added to this pull request automatically.

[mizzy]

    ret = backend.run_command(backend.commands.check_file_md5checksum(file, pattern))
    ret[:exit_status] == 0

This should be like this:

    backend.check_file_md5checksum(example, file, pattern)

Here, method_missing is called because check_file_md5checksum is not implemented in Backend::Exec.
https://github.com/mizzy/serverspec/blob/master/lib/serverspec/backend/exec.rb#L32

And method_missing runs commands.check_file_md5checksum(file, pattern) and check its exit status.

[mizzy]

Thanks!