Add more tests to fix_re_match branch

[gaogaotiantian]

@Carinaqyy , we need more tests for fix_re_match.

• Make sure include/exclude uses "full match". For example. ".*s" should match "coins", but not "position".
• Add more tests using objprint, maybe create a new file. We can't only test objstr and assume it would work with objprint.
• Restructure the test files. test_config should test the function config, not objprint with arguments.