This is the test suite for Snow. It's probably not a very great test suite, and I prefer writing test libraries over writing test suites (Snow started out as a way to procrastinate instead of writing tests for another project...), but I feel like there should be at least some test coverage of Snow.
Testing a test suite is a bit strange, especially when it tries to be somewat
"magic" like Snow does. My solution is to have programs in cases/*.c which
should produce some expected output, and then the test suite (test.c) runs
those programs and analyze their output, and verify that it works as expected.
The test.c file uses an old version of the snow.h header in snow/snow.h,
while the programs in cases/ use the current version of Snow from
../snow/snow.h. The snow/snow.h file should be updated to reflect
../snow/snow.h for every release.
On Windows, this test suite assumes you're using MinGW to compile, and Git Bash or another Linux-style shell to run the test suite.