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bbea7da669
This PR is in reference to #10215. This PR changes `select` to work even if multiple equal items were provided. This would previously error, but now works ```nushell let arg = [ 1 a ] [[a b c]; [1 2 3] [4 5 6] [7 8 9]] | select $arg ``` # User-Facing Changes Nothing too radical, just experience improvements. Users won't need to pass the values through `unique` beforehand.
282 lines
7.1 KiB
Rust
282 lines
7.1 KiB
Rust
use nu_test_support::fs::Stub::{EmptyFile, 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 regular_columns() {
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let actual = nu!(pipeline(
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r#"
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echo [
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[first_name, last_name, rusty_at, type];
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[Andrés Robalino '10/11/2013' A]
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[JT Turner '10/12/2013' B]
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[Yehuda Katz '10/11/2013' A]
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]
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| select rusty_at last_name
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| get 0
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| get last_name
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"#
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));
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assert_eq!(actual.out, "Robalino");
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}
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#[test]
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fn complex_nested_columns() {
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Playground::setup("select_test_2", |dirs, sandbox| {
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sandbox.with_files(vec![FileWithContentToBeTrimmed(
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"los_tres_caballeros.json",
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r#"
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{
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"nu": {
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"committers": [
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{"name": "Andrés N. Robalino"},
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{"name": "JT Turner"},
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{"name": "Yehuda Katz"}
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],
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"releases": [
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{"version": "0.2"}
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{"version": "0.8"},
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{"version": "0.9999999"}
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],
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"0xATYKARNU": [
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["Th", "e", " "],
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["BIG", " ", "UnO"],
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["punto", "cero"]
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]
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}
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}
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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_tres_caballeros.json
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| select nu."0xATYKARNU" nu.committers.name nu.releases.version
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| get nu_releases_version
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| where $it > "0.8"
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| get 0
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"#
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));
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assert_eq!(actual.out, "0.9999999");
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})
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}
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#[test]
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fn fails_if_given_unknown_column_name() {
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let actual = nu!(pipeline(
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r#"
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echo [
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[first_name, last_name, rusty_at, type];
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[Andrés Robalino '10/11/2013' A]
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[JT Turner '10/12/2013' B]
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[Yehuda Katz '10/11/2013' A]
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]
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| select rrusty_at first_name
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| length
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"#
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));
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assert!(actual.err.contains("nu::shell::name_not_found"));
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}
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#[test]
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fn column_names_with_spaces() {
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let actual = nu!(pipeline(
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r#"
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echo [
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["first name", "last name"];
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[Andrés Robalino]
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[Andrés Jnth]
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]
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| select "last name"
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| get "last name"
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| str join " "
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"#
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));
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assert_eq!(actual.out, "Robalino Jnth");
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}
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#[test]
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fn ignores_duplicate_columns_selected() {
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let actual = nu!(pipeline(
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r#"
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echo [
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["first name", "last name"];
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[Andrés Robalino]
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[Andrés Jnth]
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]
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| select "first name" "last name" "first name"
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| columns
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| str join " "
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"#
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));
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assert_eq!(actual.out, "first name last name");
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}
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#[test]
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fn selects_a_row() {
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Playground::setup("select_test_1", |dirs, sandbox| {
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sandbox.with_files(vec![EmptyFile("notes.txt"), EmptyFile("arepas.txt")]);
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let actual = nu!(
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cwd: dirs.test(), pipeline(
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"
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ls
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| sort-by name
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| select 0
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| get name.0
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"
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));
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assert_eq!(actual.out, "arepas.txt");
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});
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}
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#[test]
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fn selects_many_rows() {
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Playground::setup("select_test_2", |dirs, sandbox| {
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sandbox.with_files(vec![EmptyFile("notes.txt"), EmptyFile("arepas.txt")]);
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let actual = nu!(
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cwd: dirs.test(), pipeline(
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"
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ls
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| get name
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| select 1 0
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| length
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"
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));
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assert_eq!(actual.out, "2");
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});
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}
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#[test]
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fn select_ignores_errors_successfully1() {
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let actual = nu!("[{a: 1, b: 2} {a: 3, b: 5} {a: 3}] | select b? | length");
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assert_eq!(actual.out, "3".to_string());
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assert!(actual.err.is_empty());
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}
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#[test]
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fn select_ignores_errors_successfully2() {
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let actual = nu!("[{a: 1} {a: 2} {a: 3}] | select b? | to nuon");
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assert_eq!(actual.out, "[[b]; [null], [null], [null]]".to_string());
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assert!(actual.err.is_empty());
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}
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#[test]
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fn select_ignores_errors_successfully3() {
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let actual = nu!("sys | select invalid_key? | to nuon");
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assert_eq!(actual.out, "{invalid_key: null}".to_string());
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assert!(actual.err.is_empty());
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}
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#[test]
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fn select_ignores_errors_successfully4() {
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let actual =
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nu!(r#""key val\na 1\nb 2\n" | lines | split column -c " " | select foo? | to nuon"#);
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assert_eq!(actual.out, r#"[[foo]; [null], [null], [null]]"#.to_string());
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assert!(actual.err.is_empty());
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}
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#[test]
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fn select_failed1() {
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let actual = nu!("[{a: 1, b: 2} {a: 3, b: 5} {a: 3}] | select b ");
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assert!(actual.out.is_empty());
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assert!(actual.err.contains("cannot find column"));
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}
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#[test]
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fn select_failed2() {
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let actual = nu!("[{a: 1} {a: 2} {a: 3}] | select b");
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assert!(actual.out.is_empty());
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assert!(actual.err.contains("cannot find column"));
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}
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#[test]
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fn select_failed3() {
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let actual = nu!(r#""key val\na 1\nb 2\n" | lines | split column -c " " | select "100""#);
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assert!(actual.out.is_empty());
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assert!(actual.err.contains("cannot find column"));
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}
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#[test]
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fn select_repeated_rows() {
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let actual = nu!("[[a b c]; [1 2 3] [4 5 6] [7 8 9]] | select 0 0 | to nuon");
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assert_eq!(actual.out, "[[a, b, c]; [1, 2, 3]]");
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}
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#[test]
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fn select_repeated_column() {
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let actual = nu!("[[a b c]; [1 2 3] [4 5 6] [7 8 9]] | select a a | to nuon");
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assert_eq!(actual.out, "[[a]; [1], [4], [7]]");
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}
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#[test]
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fn ignore_errors_works() {
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let actual = nu!(r#"
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let path = "foo";
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[{}] | select -i $path | to nuon
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"#);
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assert_eq!(actual.out, "[[foo]; [null]]");
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}
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#[test]
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fn select_on_empty_list_returns_empty_list() {
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// once with a List
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let actual = nu!("[] | select foo | to nuon");
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assert_eq!(actual.out, "[]");
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// and again with a ListStream
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let actual = nu!("[] | each {|i| $i} | select foo | to nuon");
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assert_eq!(actual.out, "[]");
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}
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#[test]
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fn select_columns_with_variable_list() {
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let actual = nu!(r#"
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let columns = [a c];
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echo [[a b c]; [1 2 3]] | select $columns | to nuon
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"#);
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assert_eq!(actual.out, "[[a, c]; [1, 3]]");
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}
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#[test]
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fn select_rows_with_variable_list() {
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let actual = nu!(r#"
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let rows = [0 2];
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echo [[a b c]; [1 2 3] [4 5 6] [7 8 9]] | select $rows | to nuon
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"#);
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assert_eq!(actual.out, "[[a, b, c]; [1, 2, 3], [7, 8, 9]]");
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}
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#[test]
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fn select_single_row_with_variable() {
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let actual = nu!("let idx = 2;[{a: 1, b: 2} {a: 3, b: 5} {a: 3}] | select $idx | to nuon");
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assert_eq!(actual.out, "[[a]; [3]]".to_string());
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assert!(actual.err.is_empty());
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}
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