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

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Rust
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use nu_test_support::fs::Stub::FileWithContentToBeTrimmed;
use nu_test_support::playground::Playground;
2019-12-17 19:54:39 +01:00
use nu_test_support::{nu, pipeline};
#[test]
fn adds_a_row_to_the_beginning() {
Playground::setup("prepend_test_1", |dirs, sandbox| {
sandbox.with_files(vec![FileWithContentToBeTrimmed(
"los_tres_caballeros.txt",
r#"
Andrés N. Robalino
Jonathan Turner
Yehuda Katz
"#,
)]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
open los_tres_caballeros.txt
| lines
| prepend "pollo loco"
| nth 0
"#
));
assert_eq!(actual.out, "pollo loco");
})
}