merge #22

src/opt.rs

@@ -55,6 +55,10 @@ pub struct Opt {
     /// Rebuild the cargo project without the cache from previous run
     pub clean: bool,
 
+    #[structopt(long = "test")]
+    /// Build and run only tests in module
+    pub test: bool,
+
     #[structopt(short = "t", long = "toolchain", hidden = true)]
     pub toolchain: Option<String>,
 

src/steps.rs

@@ -125,8 +125,10 @@ pub fn run_cargo_build(options: &Opt, project: &PathBuf) -> Result<ExitStatus, C
         cargo.arg(format!("+{}", toolchain));
     }
 
+    let subcommand = if options.test { "test" } else { "run" };
+
     cargo
-        .arg("run")
+        .arg(subcommand)
         .arg("--manifest-path")
         .arg(project.join("Cargo.toml"));