Test Adapters are a trampoline that launch test binaries, parses output and translates it to fuchsia.test.Suite protocol. This would eventually be ported into a runner. We are planning to add adapters for rust and gtests(C++).
fx set core.x64 --with //src/sys/test_adapters fx build
Above command will build all test adapters, to build individual one, see READMEs in gtest and rust
Please see following docs
Please see following docs