src/test/ui/custom_test_frameworks/dynamic.rs

// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

// run-pass
// aux-build:dynamic_runner.rs
// compile-flags:--test
#![feature(custom_test_frameworks)]
#![test_runner(dynamic_runner::runner)]

extern crate dynamic_runner;

pub struct AllFoo(&'static str);
struct IsFoo(String);

impl dynamic_runner::Testable for AllFoo {
    fn name(&self) -> String {
        String::from(self.0)
    }

    fn subtests(&self) -> Vec<Box<dyn dynamic_runner::Testable>> {
        self.0.split(" ").map(|word|
            Box::new(IsFoo(word.into())) as Box<dyn dynamic_runner::Testable>
        ).collect()
    }
}

impl dynamic_runner::Testable for IsFoo {
    fn name(&self) -> String {
        self.0.clone()
    }

    fn run(&self) -> bool {
        self.0 == "foo"
    }
}

#[test_case]
const TEST_2: AllFoo = AllFoo("foo foo");