forked from extern/nushell
d34581db4a
# Description Fixes: #7085 Also closes: #7526 # User-Facing Changes After this change, we need to use `-c` flag like this: ```nushell [[a, b, c]; [1, 2, 3]] | rename -c { a: ham } ``` But we can rename many columns easily, here is another example: ```nushell [[a, b, c]; [1, 2, 3]] | rename -c { a: ham, b: ham2 } ```
117 lines
3.0 KiB
Rust
117 lines
3.0 KiB
Rust
use nu_test_support::fs::Stub::FileWithContentToBeTrimmed;
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use nu_test_support::playground::Playground;
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use nu_test_support::{nu, pipeline};
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#[test]
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fn changes_the_column_name() {
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Playground::setup("rename_test_1", |dirs, sandbox| {
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sandbox.with_files(vec![FileWithContentToBeTrimmed(
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"los_cuatro_mosqueteros.txt",
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r#"
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Andrés N. Robalino
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JT Turner
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Yehuda Katz
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Jason Gedge
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"#,
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)]);
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let actual = nu!(
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cwd: dirs.test(), pipeline(
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"
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open los_cuatro_mosqueteros.txt
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| lines
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| wrap name
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| rename mosqueteros
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| get mosqueteros
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| length
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"
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));
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assert_eq!(actual.out, "4");
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})
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}
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#[test]
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fn keeps_remaining_original_names_given_less_new_names_than_total_original_names() {
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Playground::setup("rename_test_2", |dirs, sandbox| {
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sandbox.with_files(vec![FileWithContentToBeTrimmed(
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"los_cuatro_mosqueteros.txt",
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r#"
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Andrés N. Robalino
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JT Turner
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Yehuda Katz
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Jason Gedge
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"#,
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)]);
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let actual = nu!(
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cwd: dirs.test(), pipeline(
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r#"
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open los_cuatro_mosqueteros.txt
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| lines
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| wrap name
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| default "arepa!" hit
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| rename mosqueteros
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| get hit
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| length
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"#
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));
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assert_eq!(actual.out, "4");
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})
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}
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#[test]
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fn errors_if_no_columns_present() {
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Playground::setup("rename_test_3", |dirs, sandbox| {
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sandbox.with_files(vec![FileWithContentToBeTrimmed(
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"los_cuatro_mosqueteros.txt",
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r#"
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Andrés N. Robalino
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JT Turner
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Yehuda Katz
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Jason Gedge
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"#,
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)]);
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let actual = nu!(
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cwd: dirs.test(), pipeline(
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"
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open los_cuatro_mosqueteros.txt
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| lines
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| rename mosqueteros
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"
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));
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assert!(actual.err.contains("command doesn't support"));
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})
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}
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#[test]
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fn errors_if_columns_param_is_empty() {
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Playground::setup("rename_test_4", |dirs, sandbox| {
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sandbox.with_files(vec![FileWithContentToBeTrimmed(
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"los_cuatro_mosqueteros.txt",
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r#"
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Andrés N. Robalino
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JT Turner
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Yehuda Katz
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Jason Gedge
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"#,
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)]);
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let actual = nu!(
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cwd: dirs.test(), pipeline(
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r#"
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open los_cuatro_mosqueteros.txt
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| lines
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| wrap name
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| default "arepa!" hit
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| rename -c {}
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"#
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));
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assert!(actual.err.contains("The column info cannot be empty"));
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})
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}
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