coreutils/tests/by-util/test_nproc.rs
2022-03-21 13:46:22 +01:00

108 lines
3.3 KiB
Rust

// spell-checker:ignore incorrectnumber
use crate::common::util::*;
#[test]
fn test_nproc() {
let nproc: u8 = new_ucmd!().succeeds().stdout_str().trim().parse().unwrap();
assert!(nproc > 0);
}
#[test]
fn test_nproc_all_omp() {
let result = new_ucmd!().arg("--all").succeeds();
let nproc: u8 = result.stdout_str().trim().parse().unwrap();
assert!(nproc > 0);
let result = TestScenario::new(util_name!())
.ucmd_keepenv()
.env("OMP_NUM_THREADS", "60")
.succeeds();
let nproc_omp: u8 = result.stdout_str().trim().parse().unwrap();
assert!(nproc_omp == 60);
let result = TestScenario::new(util_name!())
.ucmd_keepenv()
.env("OMP_NUM_THREADS", "1") // Has no effect
.arg("--all")
.succeeds();
let nproc_omp: u8 = result.stdout_str().trim().parse().unwrap();
assert!(nproc == nproc_omp);
// If the parsing fails, returns the number of CPU
let result = TestScenario::new(util_name!())
.ucmd_keepenv()
.env("OMP_NUM_THREADS", "incorrectnumber") // returns the number CPU
.succeeds();
let nproc_omp: u8 = result.stdout_str().trim().parse().unwrap();
assert!(nproc == nproc_omp);
}
#[test]
fn test_nproc_ignore() {
let result = new_ucmd!().succeeds();
let nproc_total: u8 = result.stdout_str().trim().parse().unwrap();
if nproc_total > 1 {
// Ignore all CPU but one
let result = TestScenario::new(util_name!())
.ucmd_keepenv()
.arg("--ignore")
.arg((nproc_total - 1).to_string())
.succeeds();
let nproc: u8 = result.stdout_str().trim().parse().unwrap();
assert!(nproc == 1);
// Ignore all CPU but one with a string
let result = TestScenario::new(util_name!())
.ucmd_keepenv()
.arg("--ignore= 1")
.succeeds();
let nproc: u8 = result.stdout_str().trim().parse().unwrap();
assert!(nproc_total - 1 == nproc);
}
}
#[test]
fn test_nproc_ignore_all_omp() {
let result = TestScenario::new(util_name!())
.ucmd_keepenv()
.env("OMP_NUM_THREADS", "42")
.arg("--ignore=40")
.succeeds();
let nproc: u8 = result.stdout_str().trim().parse().unwrap();
assert!(nproc == 2);
}
#[test]
fn test_nproc_omp_limit() {
let result = TestScenario::new(util_name!())
.ucmd_keepenv()
.env("OMP_NUM_THREADS", "42")
.env("OMP_THREAD_LIMIT", "0")
.succeeds();
let nproc: u8 = result.stdout_str().trim().parse().unwrap();
assert!(nproc == 1);
let result = TestScenario::new(util_name!())
.ucmd_keepenv()
.env("OMP_NUM_THREADS", "42")
.env("OMP_THREAD_LIMIT", "2")
.succeeds();
let nproc: u8 = result.stdout_str().trim().parse().unwrap();
assert!(nproc == 2);
let result = TestScenario::new(util_name!())
.ucmd_keepenv()
.env("OMP_NUM_THREADS", "42")
.env("OMP_THREAD_LIMIT", "2bad")
.succeeds();
let nproc: u8 = result.stdout_str().trim().parse().unwrap();
assert!(nproc == 42);
let result = TestScenario::new(util_name!())
.ucmd_keepenv()
.env("OMP_THREAD_LIMIT", "1")
.succeeds();
let nproc: u8 = result.stdout_str().trim().parse().unwrap();
assert!(nproc == 1);
}