hyperfine/tests/integration_tests.rs
2023-03-15 09:33:49 +01:00

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Rust
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mod common;
use common::hyperfine;
use predicates::prelude::*;
pub fn hyperfine_debug() -> assert_cmd::Command {
let mut cmd = hyperfine();
cmd.arg("--debug-mode");
cmd
}
#[test]
fn runs_successfully() {
hyperfine()
.arg("--runs=2")
.arg("echo dummy benchmark")
.assert()
.success();
}
#[test]
fn one_run_is_supported() {
hyperfine()
.arg("--runs=1")
.arg("echo dummy benchmark")
.assert()
.success();
}
#[test]
fn can_run_commands_without_a_shell() {
hyperfine()
.arg("--runs=1")
.arg("--show-output")
.arg("--shell=none")
.arg("echo 'hello world' argument2")
.assert()
.success()
.stdout(predicate::str::contains("hello world argument2"));
}
#[test]
fn fails_with_wrong_number_of_command_name_arguments() {
hyperfine()
.arg("--command-name=a")
.arg("--command-name=b")
.arg("echo a")
.assert()
.failure()
.stderr(predicate::str::contains("Too many --command-name options"));
}
#[test]
fn fails_with_wrong_number_of_prepare_options() {
hyperfine()
.arg("--runs=1")
.arg("--prepare=echo a")
.arg("--prepare=echo b")
.arg("echo a")
.arg("echo b")
.assert()
.success();
hyperfine()
.arg("--runs=1")
.arg("--prepare=echo a")
.arg("--prepare=echo b")
.arg("echo a")
.arg("echo b")
.arg("echo c")
.assert()
.failure()
.stderr(predicate::str::contains(
"The '--prepare' option has to be provided",
));
}
#[test]
fn fails_with_duplicate_parameter_names() {
hyperfine()
.arg("--parameter-list")
.arg("x")
.arg("1,2,3")
.arg("--parameter-list")
.arg("x")
.arg("a,b,c")
.arg("echo test")
.assert()
.failure()
.stderr(predicate::str::contains("Duplicate parameter names: x"));
}
#[test]
fn fails_for_unknown_command() {
hyperfine()
.arg("--runs=1")
.arg("some-nonexisting-program-b5d9574198b7e4b12a71fa4747c0a577")
.assert()
.failure()
.stderr(predicate::str::contains(
"Command terminated with non-zero exit code",
));
}
#[test]
fn fails_for_unknown_command_without_shell() {
hyperfine()
.arg("--shell=none")
.arg("--runs=1")
.arg("some-nonexisting-program-b5d9574198b7e4b12a71fa4747c0a577")
.assert()
.failure()
.stderr(predicate::str::contains(
"Failed to run command 'some-nonexisting-program-b5d9574198b7e4b12a71fa4747c0a577'",
));
}
#[cfg(unix)]
#[test]
fn fails_for_failing_command_without_shell() {
hyperfine()
.arg("--shell=none")
.arg("--runs=1")
.arg("false")
.assert()
.failure()
.stderr(predicate::str::contains(
"Command terminated with non-zero exit code",
));
}
#[test]
fn fails_for_unknown_setup_command() {
hyperfine()
.arg("--runs=1")
.arg("--setup=some-nonexisting-program-b5d9574198b7e4b12a71fa4747c0a577")
.arg("echo test")
.assert()
.failure()
.stderr(predicate::str::contains(
"The setup command terminated with a non-zero exit code.",
));
}
#[test]
fn fails_for_unknown_cleanup_command() {
hyperfine()
.arg("--runs=1")
.arg("--cleanup=some-nonexisting-program-b5d9574198b7e4b12a71fa4747c0a577")
.arg("echo test")
.assert()
.failure()
.stderr(predicate::str::contains(
"The cleanup command terminated with a non-zero exit code.",
));
}
#[test]
fn fails_for_unknown_prepare_command() {
hyperfine()
.arg("--prepare=some-nonexisting-program-b5d9574198b7e4b12a71fa4747c0a577")
.arg("echo test")
.assert()
.failure()
.stderr(predicate::str::contains(
"The preparation command terminated with a non-zero exit code.",
));
}
#[cfg(unix)]
#[test]
fn can_run_failing_commands_with_ignore_failure_option() {
hyperfine()
.arg("false")
.assert()
.failure()
.stderr(predicate::str::contains(
"Command terminated with non-zero exit code",
));
hyperfine()
.arg("--runs=1")
.arg("--ignore-failure")
.arg("false")
.assert()
.success();
}
#[test]
fn shows_output_of_benchmarked_command() {
hyperfine()
.arg("--runs=2")
.arg("--command-name=dummy")
.arg("--show-output")
.arg("echo 4fd47015")
.assert()
.success()
.stdout(predicate::str::contains("4fd47015").count(2));
}
#[test]
fn runs_commands_using_user_defined_shell() {
hyperfine()
.arg("--runs=1")
.arg("--show-output")
.arg("--shell")
.arg("echo 'custom_shell' '--shell-arg'")
.arg("echo benchmark")
.assert()
.success()
.stdout(
predicate::str::contains("custom_shell --shell-arg -c echo benchmark").or(
predicate::str::contains("custom_shell --shell-arg /C echo benchmark"),
),
);
}
#[test]
fn can_pass_input_to_command_from_a_file() {
hyperfine()
.arg("--runs=1")
.arg("--input=example_input_file.txt")
.arg("--show-output")
.arg("cat")
.assert()
.success()
.stdout(predicate::str::contains("This text is part of a file"));
}
#[test]
fn fails_if_invalid_stdin_data_file_provided() {
hyperfine()
.arg("--runs=1")
.arg("--input=example_non_existent_file.txt")
.arg("--show-output")
.arg("cat")
.assert()
.failure()
.stderr(predicate::str::contains(
"The file 'example_non_existent_file.txt' specified as '--input' does not exist",
));
}
#[test]
fn returns_mean_time_in_correct_unit() {
hyperfine_debug()
.arg("sleep 1.234")
.assert()
.success()
.stdout(predicate::str::contains("Time (mean ± σ): 1.234 s ±"));
hyperfine_debug()
.arg("sleep 0.123")
.assert()
.success()
.stdout(predicate::str::contains("Time (mean ± σ): 123.0 ms ±"));
hyperfine_debug()
.arg("--time-unit=millisecond")
.arg("sleep 1.234")
.assert()
.success()
.stdout(predicate::str::contains("Time (mean ± σ): 1234.0 ms ±"));
}
#[test]
fn performs_ten_runs_for_slow_commands() {
hyperfine_debug()
.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 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 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()),
);
}