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9b41f9ecb8
# Description Closes #7110. ~~Note that unlike "real" `mut` vars, $env can be deeply mutated via stuff like `$env.PYTHON_IO_ENCODING = utf8` or `$env.config.history.max_size = 2000`. So, it's a slightly awkward special case, arguably justifiable because of what $env represents (the environment variables of your system, which is essentially "outside" normal Nushell regulations).~~ EDIT: Now allows all `mut` vars to be deeply mutated using `=`, on request. # User-Facing Changes See above. # 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.
146 lines
2.4 KiB
Rust
146 lines
2.4 KiB
Rust
use nu_test_support::{nu, pipeline};
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#[test]
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fn mut_variable() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut x = 3; $x = $x + 1; $x
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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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#[test]
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fn mut_variable_in_loop() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut x = 1; for i in 1..10 { $x = $x + $i}; $x
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"#
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));
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assert_eq!(actual.out, "56");
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}
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#[test]
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fn capture_of_mutable_var() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut x = 123; {|| $x }
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"#
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));
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assert!(actual.err.contains("capture of mutable variable"));
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}
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#[test]
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fn mut_add_assign() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut y = 3; $y += 2; $y
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"#
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));
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assert_eq!(actual.out, "5");
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}
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#[test]
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fn mut_minus_assign() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut y = 3; $y -= 2; $y
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"#
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));
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assert_eq!(actual.out, "1");
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}
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#[test]
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fn mut_multiply_assign() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut y = 3; $y *= 2; $y
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"#
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));
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assert_eq!(actual.out, "6");
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}
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#[test]
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fn mut_divide_assign() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut y = 8; $y /= 2; $y
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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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#[test]
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fn mut_path_insert() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut y = {abc: 123}; $y.abc = 456; $y.abc
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"#
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));
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assert_eq!(actual.out, "456");
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}
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#[test]
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fn mut_path_insert_list() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut a = [0 1 2]; $a.3 = 3; $a | to nuon
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"#
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));
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assert_eq!(actual.out, "[0, 1, 2, 3]");
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}
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#[test]
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fn mut_path_upsert() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut a = {b:[{c:1}]}; $a.b.0.d = 11; $a.b.0.d
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"#
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));
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assert_eq!(actual.out, "11");
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}
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#[test]
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fn mut_path_upsert_list() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut a = [[[3] 2] 1]; $a.0.0.1 = 0; $a.0.2 = 0; $a.2 = 0; $a | to nuon
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"#
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));
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assert_eq!(actual.out, "[[[3, 0], 2, 0], 1, 0]");
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}
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#[test]
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fn mut_path_operator_assign() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut a = {b:1}; $a.b += 3; $a.b -= 2; $a.b *= 10; $a.b /= 4; $a.b
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"#
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));
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assert_eq!(actual.out, "5");
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}
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