coreutils/tests/common/macros.rs
Jan Verbeek b4c95d49d8
pwd: Properly resolve logical working directory (#2604)
* pwd: Properly resolve logical working directory

* fixup! pwd: Properly resolve logical working directory

* fixup! pwd: Properly resolve logical working directory
2021-08-28 22:31:20 +02:00

93 lines
2.8 KiB
Rust

// * This file is part of the uutils coreutils package.
// *
// * For the full copyright and license information, please view the LICENSE
// * file that was distributed with this source code.
/// Platform-independent helper for constructing a PathBuf from individual elements
#[macro_export]
macro_rules! path_concat {
($e:expr, ..$n:expr) => {{
use std::path::PathBuf;
let n = $n;
let mut pb = PathBuf::new();
for _ in 0..n {
pb.push($e);
}
pb.to_str().unwrap().to_owned()
}};
($($e:expr),*) => {{
use std::path::PathBuf;
let mut pb = PathBuf::new();
$(
pb.push($e);
)*
pb.to_str().unwrap().to_owned()
}};
}
/// Deduce the name of the test binary from the test filename.
///
/// e.g.: `tests/by-util/test_cat.rs` -> `cat`
#[macro_export]
macro_rules! util_name {
() => {
module_path!()
.split("_")
.nth(1)
.and_then(|s| s.split("::").next())
.expect("no test name")
};
}
/// Convenience macro for acquiring a [`UCommand`] builder.
///
/// Returns the following:
/// - a [`UCommand`] builder for invoking the binary to be tested
///
/// This macro is intended for quick, single-call tests. For more complex tests
/// that require multiple invocations of the tested binary, see [`TestScenario`]
///
/// [`UCommand`]: crate::tests::common::util::UCommand
/// [`TestScenario]: crate::tests::common::util::TestScenario
#[macro_export]
macro_rules! new_ucmd {
() => {
TestScenario::new(util_name!()).ucmd()
};
}
/// Convenience macro for acquiring a [`UCommand`] builder and a test path.
///
/// Returns a tuple containing the following:
/// - an [`AtPath`] that points to a unique temporary test directory
/// - a [`UCommand`] builder for invoking the binary to be tested
///
/// This macro is intended for quick, single-call tests. For more complex tests
/// that require multiple invocations of the tested binary, see [`TestScenario`]
///
/// [`UCommand`]: crate::tests::common::util::UCommand
/// [`AtPath`]: crate::tests::common::util::AtPath
/// [`TestScenario]: crate::tests::common::util::TestScenario
#[macro_export]
macro_rules! at_and_ucmd {
() => {{
let ts = TestScenario::new(util_name!());
(ts.fixtures.clone(), ts.ucmd())
}};
}
/// If `common::util::expected_result` returns an error, i.e. the `util` in `$PATH` doesn't
/// include a coreutils version string or the version is too low,
/// this macro can be used to automatically skip the test and print the reason.
#[macro_export]
macro_rules! unwrap_or_return {
( $e:expr ) => {
match $e {
Ok(x) => x,
Err(e) => {
println!("test skipped: {}", e);
return;
}
}
};
}