More tests could probably be added, but this should cover
concatenation, resizing, clearing, formatted printing,
and checking the length, so it should be quite complete.
Signed-off-by: Thomas Helland <thomashelland90@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle at amd.com>
Tested-by: Dieter Nützel <Dieter at nuetzel-hh.de>
V2: Address review feedback from Timothy, plus fixes
- Use a large enough char array
- Actually test the formatted appending
- Test that clear function resets string length
V3: Port to gtest
V4: Fix test makefile
Fix copyright header
Fix missing extern C
Use more appropriate name for C-file
Add tests for append_char
