Function wasm_pack::test::cargo_test_wasm

pub fn cargo_test_wasm<I, K, V>(
    path: &Path, 
    release: bool, 
    envs: I
) -> Result<(), Error> where
    I: IntoIterator<Item = (K, V)>,
    K: AsRef<OsStr>,
    V: AsRef<OsStr>, 

Run cargo test with the nightly toolchain and targeting wasm32-unknown-unknown.