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# Description As title, closes: #7921 closes: #8273 # User-Facing Changes when define a closure without pipe, nushell will raise error for now: ``` ❯ let x = {ss ss} Error: nu::parser::closure_missing_pipe × Missing || inside closure ╭─[entry #2:1:1] 1 │ let x = {ss ss} · ───┬─── · ╰── Parsing as a closure, but || is missing ╰──── help: Try add || to the beginning of closure ``` `any`, `each`, `all`, `where` command accepts closure, it forces user input closure like `{||`, or parse error will returned. ``` ❯ {major:2, minor:1, patch:4} | values | each { into string } Error: nu::parser::closure_missing_pipe × Missing || inside closure ╭─[entry #4:1:1] 1 │ {major:2, minor:1, patch:4} | values | each { into string } · ───────┬─────── · ╰── Parsing as a closure, but || is missing ╰──── help: Try add || to the beginning of closure ``` `with-env`, `do`, `def`, `try` are special, they still remain the same, although it says that it accepts a closure, but they don't need to be written like `{||`, it's more likely a block but can capture variable outside of scope: ``` ❯ def test [input] { echo [0 1 2] | do { do { echo $input } } }; test aaa aaa ``` Just realize that It's a big breaking change, we need to update config and scripts... # Tests + Formatting Don't forget to add tests that cover your changes. Make sure you've run and fixed any issues with these commands: - `cargo fmt --all -- --check` to check standard code formatting (`cargo fmt --all` applies these changes) - `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A clippy::needless_collect` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass # After Submitting If your PR had any user-facing changes, update [the documentation](https://github.com/nushell/nushell.github.io) after the PR is merged, if necessary. This will help us keep the docs up to date.
113 lines
3.2 KiB
Rust
113 lines
3.2 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 groups() {
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Playground::setup("group_by_test_1", |dirs, sandbox| {
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sandbox.with_files(vec![FileWithContentToBeTrimmed(
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"los_tres_caballeros.csv",
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r#"
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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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)]);
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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.csv
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| group-by rusty_at
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| get "10/11/2013"
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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 errors_if_given_unknown_column_name() {
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Playground::setup("group_by_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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| group-by {|| get nu.releases.version }
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"#
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));
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assert!(actual
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.err
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.contains("requires a table with one value for grouping"));
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})
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}
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#[test]
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fn errors_if_block_given_evaluates_more_than_one_row() {
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Playground::setup("group_by_test_3", |dirs, sandbox| {
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sandbox.with_files(vec![FileWithContentToBeTrimmed(
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"los_tres_caballeros.csv",
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r#"
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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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)]);
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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.csv
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| group-by ttype
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"#
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));
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assert!(actual.err.contains("value originates here"),);
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assert!(actual.err.contains("cannot find column"),);
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})
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}
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#[test]
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fn errors_if_input_empty() {
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Playground::setup("group_by_empty_test", |dirs, _sandbox| {
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let actual = nu!(
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cwd: dirs.test(), pipeline(
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r#"
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group-by date
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"#
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));
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assert!(actual.err.contains("expected table from pipeline"));
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});
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}
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