nushell/tests/commands/first.rs

71 lines
1.6 KiB
Rust

use test_support::fs::Stub::EmptyFile;
use test_support::playground::Playground;
use test_support::{nu, pipeline};
#[test]
fn gets_first_rows_by_amount() {
Playground::setup("first_test_1", |dirs, sandbox| {
sandbox.with_files(vec![
EmptyFile("los.txt"),
EmptyFile("tres.txt"),
EmptyFile("amigos.txt"),
EmptyFile("arepas.clu"),
]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
ls
| first 3
| count
| echo $it
"#
));
assert_eq!(actual, "3");
})
}
#[test]
fn gets_all_rows_if_amount_higher_than_all_rows() {
Playground::setup("first_test_2", |dirs, sandbox| {
sandbox.with_files(vec![
EmptyFile("los.txt"),
EmptyFile("tres.txt"),
EmptyFile("amigos.txt"),
EmptyFile("arepas.clu"),
]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
ls
| first 99
| count
| echo $it
"#
));
assert_eq!(actual, "4");
})
}
#[test]
fn gets_first_row_when_no_amount_given() {
Playground::setup("first_test_3", |dirs, sandbox| {
sandbox.with_files(vec![EmptyFile("caballeros.txt"), EmptyFile("arepas.clu")]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
ls
| first
| count
| echo $it
"#
));
assert_eq!(actual, "1");
})
}