nushell/crates/nu-command/tests/commands/every.rs

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use nu_test_support::fs::Stub::EmptyFile;
use nu_test_support::playground::Playground;
use nu_test_support::{nu, pipeline};
#[test]
fn gets_all_rows_by_every_zero() {
Playground::setup("every_test_1", |dirs, sandbox| {
sandbox.with_files(vec![
EmptyFile("amigos.txt"),
EmptyFile("arepas.clu"),
EmptyFile("los.txt"),
EmptyFile("tres.txt"),
]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
ls
| get name
| every 0
| to json --raw
"#
));
assert_eq!(
actual.out,
r#"["amigos.txt","arepas.clu","los.txt","tres.txt"]"#
);
})
}
#[test]
fn gets_no_rows_by_every_skip_zero() {
Playground::setup("every_test_2", |dirs, sandbox| {
sandbox.with_files(vec![
EmptyFile("amigos.txt"),
EmptyFile("arepas.clu"),
EmptyFile("los.txt"),
EmptyFile("tres.txt"),
]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
ls
| get name
| every 0 --skip
| to json --raw
"#
));
assert_eq!(actual.out, "[]");
})
}
#[test]
fn gets_all_rows_by_every_one() {
Playground::setup("every_test_3", |dirs, sandbox| {
sandbox.with_files(vec![
EmptyFile("amigos.txt"),
EmptyFile("arepas.clu"),
EmptyFile("los.txt"),
EmptyFile("tres.txt"),
]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
ls
| get name
| every 1
| to json --raw
"#
));
assert_eq!(
actual.out,
r#"["amigos.txt","arepas.clu","los.txt","tres.txt"]"#
);
})
}
#[test]
fn gets_no_rows_by_every_skip_one() {
Playground::setup("every_test_4", |dirs, sandbox| {
sandbox.with_files(vec![
EmptyFile("amigos.txt"),
EmptyFile("arepas.clu"),
EmptyFile("los.txt"),
EmptyFile("tres.txt"),
]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
ls
| get name
| every 1 --skip
| to json --raw
"#
));
assert_eq!(actual.out, "[]");
})
}
#[test]
fn gets_first_row_by_every_too_much() {
Playground::setup("every_test_5", |dirs, sandbox| {
sandbox.with_files(vec![
EmptyFile("amigos.txt"),
EmptyFile("arepas.clu"),
EmptyFile("los.txt"),
EmptyFile("tres.txt"),
]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
ls
| get name
| every 999
"#
));
let expected = nu!(
cwd: dirs.test(), pipeline(
r#"
echo [ amigos.txt ]
"#
));
assert_eq!(actual.out, expected.out);
})
}
#[test]
fn gets_all_rows_except_first_by_every_skip_too_much() {
Playground::setup("every_test_6", |dirs, sandbox| {
sandbox.with_files(vec![
EmptyFile("amigos.txt"),
EmptyFile("arepas.clu"),
EmptyFile("los.txt"),
EmptyFile("tres.txt"),
]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
ls
| get name
| every 999 --skip
| to json --raw
"#
));
assert_eq!(actual.out, r#"["arepas.clu","los.txt","tres.txt"]"#);
})
}
#[test]
fn gets_every_third_row() {
Playground::setup("every_test_7", |dirs, sandbox| {
sandbox.with_files(vec![
EmptyFile("amigos.txt"),
EmptyFile("arepas.clu"),
EmptyFile("los.txt"),
EmptyFile("quatro.txt"),
EmptyFile("tres.txt"),
]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
ls
| get name
| every 3
| to json --raw
"#
));
assert_eq!(actual.out, r#"["amigos.txt","quatro.txt"]"#);
})
}
#[test]
fn skips_every_third_row() {
Playground::setup("every_test_8", |dirs, sandbox| {
sandbox.with_files(vec![
EmptyFile("amigos.txt"),
EmptyFile("arepas.clu"),
EmptyFile("los.txt"),
EmptyFile("quatro.txt"),
EmptyFile("tres.txt"),
]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
ls
| get name
| every 3 --skip
| to json --raw
"#
));
assert_eq!(actual.out, r#"["arepas.clu","los.txt","tres.txt"]"#);
})
}