Running tests depending on the environment

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4

I wonder if this can be done with a build script. Putting the java probe from above in the build script:

fn main() {
    println!("cargo::rerun-if-changed=build.rs");

    println!("cargo::rustc-check-cfg=cfg(java)");
    match std::process::Command::new("which").arg("java").status() {
        Ok(s) if s.success() => {
            println!("cargo::rustc-cfg=java");
        }, 
        _ => {}
    }
}

may allow you to ignore your java-specific tests like this:

#[cfg(all(test, java))]
mod java_tests {
    // ...
}

or if you want to show the tests as ignored in your console:

#[test]
#[cfg_attr(not(java), ignore)]
fn test_that_needs_java() {}
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