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

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2019-12-17 19:54:39 +01:00
use nu_test_support::fs::Stub::EmptyFile;
use nu_test_support::playground::Playground;
use nu_test_support::{nu, pipeline};
#[test]
fn selects_a_row() {
Playground::setup("range_test_1", |dirs, sandbox| {
sandbox.with_files(vec![EmptyFile("notes.txt"), EmptyFile("tests.txt")]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
ls
| sort-by name
| range 0..0
| get name.0
"#
));
assert_eq!(actual.out, "notes.txt");
});
}
#[test]
fn selects_some_rows() {
Playground::setup("range_test_2", |dirs, sandbox| {
sandbox.with_files(vec![
EmptyFile("notes.txt"),
EmptyFile("tests.txt"),
EmptyFile("persons.txt"),
]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
ls
| get name
| range 1..2
| length
"#
));
assert_eq!(actual.out, "2");
});
}
#[test]
fn negative_indices() {
Playground::setup("range_test_negative_indices", |dirs, sandbox| {
sandbox.with_files(vec![
EmptyFile("notes.txt"),
EmptyFile("tests.txt"),
EmptyFile("persons.txt"),
]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
ls
| get name
| range (-1..)
| length
"#
));
assert_eq!(actual.out, "1");
});
}