nushell/crates/nu-command/tests/commands/rename.rs
2022-05-13 06:47:11 -05:00

90 lines
2.3 KiB
Rust

use nu_test_support::fs::Stub::FileWithContentToBeTrimmed;
use nu_test_support::playground::Playground;
use nu_test_support::{nu, pipeline};
#[test]
fn changes_the_column_name() {
Playground::setup("rename_test_1", |dirs, sandbox| {
sandbox.with_files(vec![FileWithContentToBeTrimmed(
"los_cuatro_mosqueteros.txt",
r#"
Andrés N. Robalino
Jonathan Turner
Yehuda Katz
Jason Gedge
"#,
)]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
open los_cuatro_mosqueteros.txt
| lines
| wrap name
| rename mosqueteros
| get mosqueteros
| length
"#
));
assert_eq!(actual.out, "4");
})
}
#[test]
fn keeps_remaining_original_names_given_less_new_names_than_total_original_names() {
Playground::setup("rename_test_2", |dirs, sandbox| {
sandbox.with_files(vec![FileWithContentToBeTrimmed(
"los_cuatro_mosqueteros.txt",
r#"
Andrés N. Robalino
Jonathan Turner
Yehuda Katz
Jason Gedge
"#,
)]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
open los_cuatro_mosqueteros.txt
| lines
| wrap name
| default "arepa!" hit
| rename mosqueteros
| get hit
| length
"#
));
assert_eq!(actual.out, "4");
})
}
#[test]
fn errors_if_no_columns_present() {
Playground::setup("rename_test_3", |dirs, sandbox| {
sandbox.with_files(vec![FileWithContentToBeTrimmed(
"los_cuatro_mosqueteros.txt",
r#"
Andrés N. Robalino
Jonathan Turner
Yehuda Katz
Jason Gedge
"#,
)]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
open los_cuatro_mosqueteros.txt
| lines
| rename mosqueteros
"#
));
assert!(actual.err.contains("no column names available"));
assert!(actual.err.contains("can't rename"));
})
}