fun assert_eq(x,y) {
    if x!==y {
        throw new Error("\(x)!==\(y)")
    }    
}

let mod1=import("./test_import2.np")
let mod2=import("../test/test_import2.np")
assert_eq(mod1,mod2)
assert_eq(mod1.X,42)
let message="Exception not thrown"
try{
    import("y")
}catch e{
    message=e.message
}
assert_eq(message,"Cannot find module y")