gb version 0.4.2 is a minor bug fix release which adds one new feature, nope mode.
Nope mode
Passing -n to gb test will cause the test binary to be compiled as per usual, however the execution will be skipped.
Nope mode is conceptually the same as gb test -run=nope (or some other non-matching regexp) but also avoids expensive initalisation if your test binaries do a lot of setup work before hitting testing.main.