mirror of
https://github.com/sharkdp/hyperfine.git
synced 2026-10-28 16:18:57 +00:00
c0b3834277
Replace `println!` calls on the results paths with `writeln!` on `io::stdout()` and propagate the `io::Error` to `main`, where `ErrorKind::BrokenPipe` is turned into a quiet `exit(0)`. This matches the conventional behavior of command-line tools when their output pipe is closed early (e.g. `hyperfine ... | head -n 0`), and fixes panics in all run-output paths: the per-benchmark header and results, the speed comparison summary, and `-`-style exports to stdout. The warnings and "Note" outputs to stderr are converted the same way. --------- Co-authored-by: Mathjk <Mathjk@users.noreply.github.com> Co-authored-by: David Peter <mail@david-peter.de>
766 lines
20 KiB
Rust
766 lines
20 KiB
Rust
mod common;
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use common::{hyperfine, hyperfine_raw_command};
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use predicates::prelude::*;
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/// Platform-specific I/O utility.
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/// - On Unix-like systems, defaults to `cat`.
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/// - On Windows, uses `findstr` as an alternative.
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/// See: <https://superuser.com/questions/853580/real-windows-equivalent-to-cat-stdin>
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const STDIN_READ_COMMAND: &str = if cfg!(windows) { "findstr x*" } else { "cat" };
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pub fn hyperfine_debug() -> assert_cmd::Command {
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let mut cmd = hyperfine();
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cmd.arg("--debug-mode");
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cmd
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}
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#[test]
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fn runs_successfully() {
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hyperfine()
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.arg("--runs=2")
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.arg("echo dummy benchmark")
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.assert()
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.success();
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}
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#[test]
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fn one_run_is_supported() {
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hyperfine()
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.arg("--runs=1")
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.arg("echo dummy benchmark")
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.assert()
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.success();
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}
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/// Regression test: hyperfine must not panic when writing to a closed
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/// stdout pipe (e.g. `hyperfine ... | head -n 1` or a downstream process
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/// that terminates early). A `BrokenPipe` error should result in a quiet
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/// exit with code 0 instead of a `println!` panic.
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#[test]
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fn exits_quietly_when_stdout_is_closed() {
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use std::process::Stdio;
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for args in [
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vec!["--runs=1", "echo dummy benchmark"],
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vec!["--runs=1", "--export-json=-", "echo dummy benchmark"],
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vec!["--runs=1", "echo dummy benchmark", "echo second benchmark"],
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] {
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// A pipe whose read end has been closed before hyperfine is even
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// started: every write to it will fail with `BrokenPipe`.
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let (reader, writer) = std::io::pipe().expect("failed to create pipe");
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drop(reader);
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let output = hyperfine_raw_command()
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.args(&args)
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.stdout(writer)
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.stderr(Stdio::piped())
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.spawn()
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.expect("failed to spawn hyperfine")
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.wait_with_output()
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.expect("failed to wait for hyperfine");
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let stderr = String::from_utf8_lossy(&output.stderr);
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assert!(
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!stderr.contains("panicked"),
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"hyperfine panicked while writing to a closed pipe:\n{}",
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stderr
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);
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assert!(
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output.status.success(),
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"hyperfine did not exit cleanly; stderr:\n{}",
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stderr
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);
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}
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}
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#[test]
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fn can_run_commands_without_a_shell() {
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hyperfine()
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.arg("--runs=1")
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.arg("--show-output")
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.arg("--shell=none")
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.arg("echo 'hello world' argument2")
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.assert()
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.success()
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.stdout(predicate::str::contains("hello world argument2"));
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}
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#[test]
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fn fails_with_wrong_number_of_command_name_arguments() {
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hyperfine()
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.arg("--command-name=a")
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.arg("--command-name=b")
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.arg("echo a")
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.assert()
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.failure()
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.stderr(predicate::str::contains("Too many --command-name options"));
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}
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#[test]
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fn fails_with_wrong_number_of_prepare_options() {
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hyperfine()
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.arg("--runs=1")
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.arg("--prepare=echo a")
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.arg("--prepare=echo b")
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.arg("echo a")
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.arg("echo b")
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.assert()
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.success();
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hyperfine()
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.arg("--runs=1")
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.arg("--prepare=echo ref")
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.arg("--prepare=echo a")
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.arg("--prepare=echo b")
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.arg("--reference=echo ref")
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.arg("echo a")
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.arg("echo b")
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.assert()
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.success();
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hyperfine()
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.arg("--runs=1")
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.arg("--prepare=echo a")
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.arg("--prepare=echo b")
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.arg("echo a")
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.arg("echo b")
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.arg("echo c")
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.assert()
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.failure()
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.stderr(predicate::str::contains(
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"The '--prepare' option has to be provided",
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));
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hyperfine()
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.arg("--runs=1")
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.arg("--prepare=echo a")
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.arg("--prepare=echo b")
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.arg("--reference=echo ref")
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.arg("echo a")
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.arg("echo b")
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.assert()
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.failure()
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.stderr(predicate::str::contains(
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"The '--prepare' option has to be provided",
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));
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}
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#[test]
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fn fails_with_wrong_number_of_conclude_options() {
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hyperfine()
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.arg("--runs=1")
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.arg("--conclude=echo a")
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.arg("--conclude=echo b")
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.arg("echo a")
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.arg("echo b")
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.assert()
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.success();
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hyperfine()
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.arg("--runs=1")
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.arg("--conclude=echo ref")
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.arg("--conclude=echo a")
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.arg("--conclude=echo b")
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.arg("--reference=echo ref")
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.arg("echo a")
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.arg("echo b")
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.assert()
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.success();
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hyperfine()
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.arg("--runs=1")
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.arg("--conclude=echo a")
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.arg("--conclude=echo b")
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.arg("echo a")
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.arg("echo b")
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.arg("echo c")
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.assert()
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.failure()
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.stderr(predicate::str::contains(
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"The '--conclude' option has to be provided",
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));
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hyperfine()
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.arg("--runs=1")
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.arg("--conclude=echo a")
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.arg("--conclude=echo b")
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.arg("--reference=echo ref")
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.arg("echo a")
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.arg("echo b")
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.assert()
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.failure()
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.stderr(predicate::str::contains(
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"The '--conclude' option has to be provided",
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));
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}
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#[test]
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fn fails_with_duplicate_parameter_names() {
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hyperfine()
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.arg("--parameter-list")
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.arg("x")
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.arg("1,2,3")
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.arg("--parameter-list")
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.arg("x")
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.arg("a,b,c")
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.arg("echo test")
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.assert()
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.failure()
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.stderr(predicate::str::contains("Duplicate parameter names: x"));
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}
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#[test]
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fn fails_for_unknown_command() {
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hyperfine()
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.arg("--runs=1")
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.arg("some-nonexisting-program-b5d9574198b7e4b12a71fa4747c0a577")
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.assert()
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.failure()
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.stderr(predicate::str::contains(
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"Command terminated with non-zero exit code",
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));
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}
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#[test]
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fn fails_for_unknown_command_without_shell() {
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hyperfine()
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.arg("--shell=none")
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.arg("--runs=1")
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.arg("some-nonexisting-program-b5d9574198b7e4b12a71fa4747c0a577")
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.assert()
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.failure()
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.stderr(predicate::str::contains(
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"Failed to run command 'some-nonexisting-program-b5d9574198b7e4b12a71fa4747c0a577'",
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));
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}
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#[cfg(unix)]
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#[test]
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fn fails_for_failing_command_without_shell() {
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hyperfine()
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.arg("--shell=none")
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.arg("--runs=1")
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.arg("false")
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.assert()
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.failure()
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.stderr(predicate::str::contains(
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"Command terminated with non-zero exit code",
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));
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}
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#[test]
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fn fails_for_unknown_setup_command() {
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hyperfine()
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.arg("--runs=1")
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.arg("--setup=some-nonexisting-program-b5d9574198b7e4b12a71fa4747c0a577")
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.arg("echo test")
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.assert()
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.failure()
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.stderr(predicate::str::contains(
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"The setup command terminated with a non-zero exit code.",
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));
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}
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#[test]
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fn fails_for_unknown_cleanup_command() {
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hyperfine()
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.arg("--runs=1")
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.arg("--cleanup=some-nonexisting-program-b5d9574198b7e4b12a71fa4747c0a577")
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.arg("echo test")
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.assert()
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.failure()
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.stderr(predicate::str::contains(
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"The cleanup command terminated with a non-zero exit code.",
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));
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}
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#[test]
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fn fails_for_unknown_prepare_command() {
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hyperfine()
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.arg("--prepare=some-nonexisting-program-b5d9574198b7e4b12a71fa4747c0a577")
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.arg("echo test")
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.assert()
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.failure()
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.stderr(predicate::str::contains(
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"The preparation command terminated with a non-zero exit code.",
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));
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}
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#[test]
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fn fails_for_unknown_conclude_command() {
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hyperfine()
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.arg("--conclude=some-nonexisting-program-b5d9574198b7e4b12a71fa4747c0a577")
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.arg("echo test")
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.assert()
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.failure()
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.stderr(predicate::str::contains(
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"The conclusion command terminated with a non-zero exit code.",
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));
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}
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#[cfg(unix)]
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#[test]
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fn can_run_failing_commands_with_ignore_failure_option() {
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hyperfine()
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.arg("false")
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.assert()
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.failure()
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.stderr(predicate::str::contains(
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"Command terminated with non-zero exit code",
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));
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hyperfine()
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.arg("--runs=1")
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.arg("--ignore-failure")
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.arg("false")
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.assert()
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.success();
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}
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#[cfg(unix)]
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#[test]
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fn can_ignore_specific_exit_codes() {
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// Test that specifying exit code 1 ignores it
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hyperfine()
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.arg("--runs=1")
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.arg("--ignore-failure=1")
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.arg("exit 1")
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.assert()
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.success();
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// Test that other exit codes still fail
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hyperfine()
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.arg("--runs=1")
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.arg("--ignore-failure=1")
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.arg("exit 2")
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.assert()
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.failure()
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.stderr(predicate::str::contains(
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"Command terminated with non-zero exit code 2",
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));
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}
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#[cfg(unix)]
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#[test]
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fn can_ignore_multiple_exit_codes() {
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// Test that all specified exit codes are ignored
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hyperfine()
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.arg("--runs=1")
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.arg("--ignore-failure=1,2,3")
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.arg("exit 1")
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.assert()
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.success();
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hyperfine()
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.arg("--runs=1")
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.arg("--ignore-failure=1,2,3")
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.arg("exit 2")
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.assert()
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.success();
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hyperfine()
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.arg("--runs=1")
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.arg("--ignore-failure=1,2,3")
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.arg("exit 3")
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.assert()
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.success();
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// Test that other exit codes still fail
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hyperfine()
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.arg("--runs=1")
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.arg("--ignore-failure=1,2,3")
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.arg("exit 4")
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.assert()
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.failure()
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.stderr(predicate::str::contains(
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"Command terminated with non-zero exit code 4",
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));
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}
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#[cfg(unix)]
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#[test]
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fn ignore_failure_with_all_non_zero() {
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// Test explicit "all-non-zero" mode
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hyperfine()
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.arg("--runs=1")
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.arg("--ignore-failure=all-non-zero")
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.arg("exit 5")
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.assert()
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.success();
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}
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#[test]
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fn shows_output_of_benchmarked_command() {
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hyperfine()
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.arg("--runs=2")
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.arg("--command-name=dummy")
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.arg("--show-output")
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.arg("echo 4fd47015")
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.assert()
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.success()
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.stdout(predicate::str::contains("4fd47015").count(2));
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}
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#[test]
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fn runs_commands_using_user_defined_shell() {
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hyperfine()
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.arg("--runs=1")
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.arg("--show-output")
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.arg("--shell")
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.arg("echo 'custom_shell' '--shell-arg'")
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.arg("echo benchmark")
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.assert()
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.success()
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.stdout(
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predicate::str::contains("custom_shell --shell-arg -c echo benchmark").or(
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predicate::str::contains("custom_shell --shell-arg /C echo benchmark"),
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),
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);
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}
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#[test]
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fn can_pass_input_to_command_from_a_file() {
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hyperfine()
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.arg("--runs=1")
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.arg("--input=example_input_file.txt")
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.arg("--show-output")
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.arg(STDIN_READ_COMMAND)
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.assert()
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.success()
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.stdout(predicate::str::contains("This text is part of a file"));
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}
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#[test]
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fn fails_if_invalid_stdin_data_file_provided() {
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hyperfine()
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.arg("--runs=1")
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.arg("--input=example_non_existent_file.txt")
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.arg("--show-output")
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.arg(STDIN_READ_COMMAND)
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.assert()
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.failure()
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.stderr(predicate::str::contains(
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"The file 'example_non_existent_file.txt' specified as '--input' does not exist",
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));
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}
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|
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#[test]
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fn returns_mean_time_in_correct_unit() {
|
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hyperfine_debug()
|
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.arg("sleep 1.234")
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.assert()
|
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.success()
|
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.stdout(predicate::str::contains("Time (mean ± σ): 1.234 s ±"));
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|
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hyperfine_debug()
|
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.arg("sleep 0.123")
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.assert()
|
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.success()
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.stdout(predicate::str::contains("Time (mean ± σ): 123.0 ms ±"));
|
||
|
||
hyperfine_debug()
|
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.arg("--time-unit=millisecond")
|
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.arg("sleep 1.234")
|
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.assert()
|
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.success()
|
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.stdout(predicate::str::contains("Time (mean ± σ): 1234.0 ms ±"));
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||
|
||
hyperfine_debug()
|
||
.arg("--time-unit=microsecond")
|
||
.arg("sleep 1.234")
|
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.assert()
|
||
.success()
|
||
.stdout(predicate::str::contains(
|
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"Time (mean ± σ): 1234000.0 µs ±",
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));
|
||
}
|
||
|
||
#[test]
|
||
fn performs_ten_runs_for_slow_commands() {
|
||
hyperfine_debug()
|
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.arg("sleep 0.5")
|
||
.assert()
|
||
.success()
|
||
.stdout(predicate::str::contains("10 runs"));
|
||
}
|
||
|
||
#[test]
|
||
fn performs_three_seconds_of_benchmarking_for_fast_commands() {
|
||
hyperfine_debug()
|
||
.arg("sleep 0.01")
|
||
.assert()
|
||
.success()
|
||
.stdout(predicate::str::contains("300 runs"));
|
||
}
|
||
|
||
#[test]
|
||
fn takes_shell_spawning_time_into_account_for_computing_number_of_runs() {
|
||
hyperfine_debug()
|
||
.arg("--shell=sleep 0.02")
|
||
.arg("sleep 0.01")
|
||
.assert()
|
||
.success()
|
||
.stdout(predicate::str::contains("100 runs"));
|
||
}
|
||
|
||
#[test]
|
||
fn takes_preparation_command_into_account_for_computing_number_of_runs() {
|
||
hyperfine_debug()
|
||
.arg("--prepare=sleep 0.02")
|
||
.arg("sleep 0.01")
|
||
.assert()
|
||
.success()
|
||
.stdout(predicate::str::contains("100 runs"));
|
||
|
||
// Shell overhead needs to be added to both the prepare command and the actual command,
|
||
// leading to a total benchmark time of (prepare + shell + cmd + shell = 0.1 s)
|
||
hyperfine_debug()
|
||
.arg("--shell=sleep 0.01")
|
||
.arg("--prepare=sleep 0.03")
|
||
.arg("sleep 0.05")
|
||
.assert()
|
||
.success()
|
||
.stdout(predicate::str::contains("30 runs"));
|
||
}
|
||
|
||
#[test]
|
||
fn takes_conclusion_command_into_account_for_computing_number_of_runs() {
|
||
hyperfine_debug()
|
||
.arg("--conclude=sleep 0.02")
|
||
.arg("sleep 0.01")
|
||
.assert()
|
||
.success()
|
||
.stdout(predicate::str::contains("100 runs"));
|
||
|
||
// Shell overhead needs to be added to both the conclude command and the actual command,
|
||
// leading to a total benchmark time of (cmd + shell + conclude + shell = 0.1 s)
|
||
hyperfine_debug()
|
||
.arg("--shell=sleep 0.01")
|
||
.arg("--conclude=sleep 0.03")
|
||
.arg("sleep 0.05")
|
||
.assert()
|
||
.success()
|
||
.stdout(predicate::str::contains("30 runs"));
|
||
}
|
||
|
||
#[test]
|
||
fn takes_both_preparation_and_conclusion_command_into_account_for_computing_number_of_runs() {
|
||
hyperfine_debug()
|
||
.arg("--prepare=sleep 0.01")
|
||
.arg("--conclude=sleep 0.01")
|
||
.arg("sleep 0.01")
|
||
.assert()
|
||
.success()
|
||
.stdout(predicate::str::contains("100 runs"));
|
||
|
||
// Shell overhead needs to be added to both the prepare, conclude and the actual command,
|
||
// leading to a total benchmark time of (prepare + shell + cmd + shell + conclude + shell = 0.1 s)
|
||
hyperfine_debug()
|
||
.arg("--shell=sleep 0.01")
|
||
.arg("--prepare=sleep 0.01")
|
||
.arg("--conclude=sleep 0.01")
|
||
.arg("sleep 0.05")
|
||
.assert()
|
||
.success()
|
||
.stdout(predicate::str::contains("30 runs"));
|
||
}
|
||
|
||
#[test]
|
||
fn shows_benchmark_comparison_with_relative_times() {
|
||
hyperfine_debug()
|
||
.arg("sleep 1.0")
|
||
.arg("sleep 2.0")
|
||
.arg("sleep 3.0")
|
||
.assert()
|
||
.success()
|
||
.stdout(
|
||
predicate::str::contains("2.00 ± 0.00 times faster")
|
||
.and(predicate::str::contains("3.00 ± 0.00 times faster")),
|
||
);
|
||
}
|
||
|
||
#[test]
|
||
fn shows_benchmark_comparison_with_same_time() {
|
||
hyperfine_debug()
|
||
.arg("--command-name=A")
|
||
.arg("--command-name=B")
|
||
.arg("sleep 1.0")
|
||
.arg("sleep 1.0")
|
||
.arg("sleep 2.0")
|
||
.arg("sleep 1000.0")
|
||
.assert()
|
||
.success()
|
||
.stdout(
|
||
predicate::str::contains("As fast (1.00 ± 0.00) as")
|
||
.and(predicate::str::contains("2.00 ± 0.00 times faster"))
|
||
.and(predicate::str::contains("1000.00 ± 0.00 times faster")),
|
||
);
|
||
}
|
||
|
||
#[test]
|
||
fn shows_benchmark_comparison_relative_to_reference() {
|
||
hyperfine_debug()
|
||
.arg("--reference=sleep 2.0")
|
||
.arg("sleep 1.0")
|
||
.arg("sleep 3.0")
|
||
.assert()
|
||
.success()
|
||
.stdout(
|
||
predicate::str::contains("2.00 ± 0.00 times slower")
|
||
.and(predicate::str::contains("1.50 ± 0.00 times faster")),
|
||
);
|
||
}
|
||
|
||
#[test]
|
||
fn shows_reference_name() {
|
||
hyperfine_debug()
|
||
.arg("--reference=sleep 2.0")
|
||
.arg("--reference-name=refabc123")
|
||
.arg("sleep 1.0")
|
||
.arg("sleep 3.0")
|
||
.assert()
|
||
.success()
|
||
.stdout(predicate::str::contains("Benchmark 1: refabc123"));
|
||
}
|
||
|
||
#[test]
|
||
fn performs_all_benchmarks_in_parameter_scan() {
|
||
hyperfine_debug()
|
||
.arg("--parameter-scan")
|
||
.arg("time")
|
||
.arg("30")
|
||
.arg("45")
|
||
.arg("--parameter-step-size")
|
||
.arg("5")
|
||
.arg("sleep {time}")
|
||
.assert()
|
||
.success()
|
||
.stdout(
|
||
predicate::str::contains("Benchmark 1: sleep 30")
|
||
.and(predicate::str::contains("Benchmark 2: sleep 35"))
|
||
.and(predicate::str::contains("Benchmark 3: sleep 40"))
|
||
.and(predicate::str::contains("Benchmark 4: sleep 45"))
|
||
.and(predicate::str::contains("Benchmark 5: sleep 50").not()),
|
||
);
|
||
}
|
||
|
||
#[test]
|
||
fn performs_reference_and_all_benchmarks_in_parameter_scan() {
|
||
hyperfine_debug()
|
||
.arg("--reference=sleep 25")
|
||
.arg("--parameter-scan")
|
||
.arg("time")
|
||
.arg("30")
|
||
.arg("45")
|
||
.arg("--parameter-step-size")
|
||
.arg("5")
|
||
.arg("sleep {time}")
|
||
.assert()
|
||
.success()
|
||
.stdout(
|
||
predicate::str::contains("Benchmark 1: sleep 25")
|
||
.and(predicate::str::contains("Benchmark 2: sleep 30"))
|
||
.and(predicate::str::contains("Benchmark 3: sleep 35"))
|
||
.and(predicate::str::contains("Benchmark 4: sleep 40"))
|
||
.and(predicate::str::contains("Benchmark 5: sleep 45"))
|
||
.and(predicate::str::contains("Benchmark 6: sleep 50").not()),
|
||
);
|
||
}
|
||
|
||
#[test]
|
||
fn intermediate_results_are_not_exported_to_stdout() {
|
||
hyperfine_debug()
|
||
.arg("--style=none") // To only see the Markdown export on stdout
|
||
.arg("--export-markdown")
|
||
.arg("-")
|
||
.arg("sleep 1")
|
||
.arg("sleep 2")
|
||
.assert()
|
||
.success()
|
||
.stdout(
|
||
(predicate::str::contains("sleep 1").count(1))
|
||
.and(predicate::str::contains("sleep 2").count(1)),
|
||
);
|
||
}
|
||
|
||
#[test]
|
||
#[cfg(unix)]
|
||
fn exports_intermediate_results_to_file() {
|
||
use tempfile::tempdir;
|
||
|
||
let tempdir = tempdir().unwrap();
|
||
let export_path = tempdir.path().join("results.md");
|
||
|
||
hyperfine()
|
||
.arg("--runs=1")
|
||
.arg("--export-markdown")
|
||
.arg(&export_path)
|
||
.arg("true")
|
||
.arg("false")
|
||
.assert()
|
||
.failure();
|
||
|
||
let contents = std::fs::read_to_string(export_path).unwrap();
|
||
assert!(contents.contains("true"));
|
||
}
|
||
|
||
#[test]
|
||
fn unused_parameters_are_shown_in_benchmark_name() {
|
||
hyperfine()
|
||
.arg("--runs=2")
|
||
.arg("--parameter-list")
|
||
.arg("branch")
|
||
.arg("master,feature")
|
||
.arg("echo test")
|
||
.assert()
|
||
.success()
|
||
.stdout(
|
||
predicate::str::contains("echo test (branch = master)")
|
||
.and(predicate::str::contains("echo test (branch = feature)")),
|
||
);
|
||
}
|
||
|
||
#[test]
|
||
fn speed_comparison_sort_order() {
|
||
for sort_order in ["auto", "mean-time"] {
|
||
hyperfine_debug()
|
||
.arg("sleep 2")
|
||
.arg("sleep 1")
|
||
.arg(format!("--sort={sort_order}"))
|
||
.assert()
|
||
.success()
|
||
.stdout(predicate::str::contains(
|
||
"sleep 1 ran\n 2.00 ± 0.00 times faster than sleep 2",
|
||
));
|
||
}
|
||
|
||
hyperfine_debug()
|
||
.arg("sleep 2")
|
||
.arg("sleep 1")
|
||
.arg("--sort=command")
|
||
.assert()
|
||
.success()
|
||
.stdout(predicate::str::contains(
|
||
"2.00 ± 0.00 sleep 2\n 1.00 sleep 1",
|
||
));
|
||
}
|
||
|
||
#[cfg(windows)]
|
||
#[test]
|
||
fn windows_quote_args() {
|
||
hyperfine()
|
||
.arg("more \"example_input_file.txt\"")
|
||
.assert()
|
||
.success();
|
||
}
|
||
|
||
#[cfg(windows)]
|
||
#[test]
|
||
fn windows_quote_before_quote_args() {
|
||
hyperfine()
|
||
.arg("dir \"..\\src\\\" \"..\\tests\\\"")
|
||
.assert()
|
||
.success();
|
||
}
|