mirror of
https://github.com/nushell/nushell
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e761954cf0
# Description closes #8153 This PR allows different types of lists, like `list<string>` and `list<any>` to be appended with the `++=` operator. ## Before ``` mut args = [ hello ("hello" | path join world)] $args ++= [ foo bar ] Error: nu::parser::type_mismatch (link) × Type mismatch during operation. ╭─[entry #2:1:1] 1 │ $args ++= [ foo bar ] · ─────┬───── · ╰── expected list<any>, found list<string> ╰──── ``` ## After ``` mut args = [ hello ("hello" | path join world)] $args ++= [ foo bar ] $args ╭───┬─────────────╮ │ 0 │ hello │ │ 1 │ hello\world │ │ 2 │ foo │ │ 3 │ bar │ ╰───┴─────────────╯ ``` # User-Facing Changes _(List of all changes that impact the user experience here. This helps us keep track of breaking changes.)_ # Tests + Formatting Don't forget to add tests that cover your changes. Make sure you've run and fixed any issues with these commands: - `cargo fmt --all -- --check` to check standard code formatting (`cargo fmt --all` applies these changes) - `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A clippy::needless_collect` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass # After Submitting If your PR had any user-facing changes, update [the documentation](https://github.com/nushell/nushell.github.io) after the PR is merged, if necessary. This will help us keep the docs up to date.
107 lines
1.8 KiB
Rust
107 lines
1.8 KiB
Rust
use nu_test_support::{nu, pipeline};
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#[test]
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fn append_assign_int() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut a = [1 2];
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$a ++= [3 4];
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$a
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"#
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));
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let expected = nu!(
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cwd: ".", pipeline(
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r#"
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[1 2 3 4]
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"#
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));
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print!("{}", actual.out);
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print!("{}", expected.out);
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assert_eq!(actual.out, expected.out);
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}
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#[test]
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fn append_assign_string() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut a = [a b];
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$a ++= [c d];
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$a
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"#
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));
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let expected = nu!(
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cwd: ".", pipeline(
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r#"
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[a b c d]
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"#
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));
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print!("{}", actual.out);
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print!("{}", expected.out);
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assert_eq!(actual.out, expected.out);
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}
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#[test]
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fn append_assign_any() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut a = [1 2 a];
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$a ++= [b 3];
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$a
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"#
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));
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let expected = nu!(
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cwd: ".", pipeline(
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r#"
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[1 2 a b 3]
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"#
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));
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print!("{}", actual.out);
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print!("{}", expected.out);
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assert_eq!(actual.out, expected.out);
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}
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#[test]
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fn append_assign_both_empty() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut a = [];
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$a ++= [];
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$a
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"#
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));
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let expected = nu!(
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cwd: ".", pipeline(
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r#"
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[]
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"#
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));
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print!("{}", actual.out);
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print!("{}", expected.out);
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assert_eq!(actual.out, expected.out);
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}
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#[test]
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fn append_assign_type_mismatch() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut a = [1 2];
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$a ++= [a];
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$a | to json -r;
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"#
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));
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assert_eq!(actual.out, r#"[1,2,"a"]"#);
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}
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