mirror of
https://github.com/uutils/coreutils
synced 2024-12-13 14:52:41 +00:00
93 lines
2.8 KiB
Rust
93 lines
2.8 KiB
Rust
// * This file is part of the uutils coreutils package.
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// *
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// * For the full copyright and license information, please view the LICENSE
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// * file that was distributed with this source code.
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/// Platform-independent helper for constructing a `PathBuf` from individual elements
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#[macro_export]
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macro_rules! path_concat {
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($e:expr, ..$n:expr) => {{
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use std::path::PathBuf;
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let n = $n;
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let mut pb = PathBuf::new();
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for _ in 0..n {
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pb.push($e);
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}
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pb.to_str().unwrap().to_owned()
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}};
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($($e:expr),*) => {{
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use std::path::PathBuf;
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let mut pb = PathBuf::new();
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$(
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pb.push($e);
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)*
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pb.to_str().unwrap().to_owned()
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}};
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}
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/// Deduce the name of the test binary from the test filename.
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///
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/// e.g.: `tests/by-util/test_cat.rs` -> `cat`
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#[macro_export]
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macro_rules! util_name {
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() => {
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module_path!()
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.split("_")
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.nth(1)
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.and_then(|s| s.split("::").next())
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.expect("no test name")
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};
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}
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/// Convenience macro for acquiring a [`UCommand`] builder.
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///
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/// Returns the following:
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/// - a [`UCommand`] builder for invoking the binary to be tested
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///
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/// This macro is intended for quick, single-call tests. For more complex tests
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/// that require multiple invocations of the tested binary, see [`TestScenario`]
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///
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/// [`UCommand`]: crate::tests::common::util::UCommand
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/// [`TestScenario]: crate::tests::common::util::TestScenario
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#[macro_export]
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macro_rules! new_ucmd {
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() => {
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TestScenario::new(util_name!()).ucmd()
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};
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}
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/// Convenience macro for acquiring a [`UCommand`] builder and a test path.
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///
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/// Returns a tuple containing the following:
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/// - an [`AtPath`] that points to a unique temporary test directory
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/// - a [`UCommand`] builder for invoking the binary to be tested
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///
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/// This macro is intended for quick, single-call tests. For more complex tests
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/// that require multiple invocations of the tested binary, see [`TestScenario`]
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///
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/// [`UCommand`]: crate::tests::common::util::UCommand
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/// [`AtPath`]: crate::tests::common::util::AtPath
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/// [`TestScenario]: crate::tests::common::util::TestScenario
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#[macro_export]
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macro_rules! at_and_ucmd {
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() => {{
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let ts = TestScenario::new(util_name!());
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(ts.fixtures.clone(), ts.ucmd())
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}};
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}
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/// If `common::util::expected_result` returns an error, i.e. the `util` in `$PATH` doesn't
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/// include a coreutils version string or the version is too low,
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/// this macro can be used to automatically skip the test and print the reason.
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#[macro_export]
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macro_rules! unwrap_or_return {
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( $e:expr ) => {
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match $e {
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Ok(x) => x,
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Err(e) => {
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println!("test skipped: {}", e);
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return;
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}
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}
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};
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}
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