nushell/crates/nu-command/tests/commands/all.rs
WindSoilder a8eef9af33
Restrict closure expression to be something like {|| ...} (#8290)
# 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.
2023-03-17 07:36:28 -05:00

132 lines
3 KiB
Rust

use nu_test_support::{nu, pipeline};
#[test]
fn checks_all_rows_are_true() {
let actual = nu!(
cwd: ".", pipeline(
r#"
echo [ "Andrés", "Andrés", "Andrés" ]
| all {|it| $it == "Andrés" }
"#
));
assert_eq!(actual.out, "true");
}
#[test]
fn checks_all_rows_are_false_with_param() {
let actual = nu!(
cwd: ".", pipeline(
r#"
[1, 2, 3, 4] | all { |a| $a >= 5 }
"#
));
assert_eq!(actual.out, "false");
}
#[test]
fn checks_all_rows_are_true_with_param() {
let actual = nu!(
cwd: ".", pipeline(
r#"
[1, 2, 3, 4] | all { |a| $a < 5 }
"#
));
assert_eq!(actual.out, "true");
}
#[test]
fn checks_all_columns_of_a_table_is_true() {
let actual = nu!(
cwd: ".", pipeline(
r#"
echo [
[ first_name, last_name, rusty_at, likes ];
[ Andrés, Robalino, 10/11/2013, 1 ]
[ JT, Turner, 10/12/2013, 1 ]
[ Darren, Schroeder, 10/11/2013, 1 ]
[ Yehuda, Katz, 10/11/2013, 1 ]
]
| all {|x| $x.likes > 0 }
"#
));
assert_eq!(actual.out, "true");
}
#[test]
fn checks_if_all_returns_error_with_invalid_command() {
// Using `with-env` to remove `st` possibly being an external program
let actual = nu!(
cwd: ".", pipeline(
r#"
with-env {PATH: ""} {
[red orange yellow green blue purple] | all {|it| ($it | st length) > 4 }
}
"#
));
assert!(actual.err.contains("can't run executable") || actual.err.contains("did you mean"));
}
#[test]
fn works_with_1_param_blocks() {
let actual = nu!(
cwd: ".", pipeline(
r#"[1 2 3] | all {|e| print $e | true }"#
));
assert_eq!(actual.out, "123true");
}
#[test]
fn works_with_0_param_blocks() {
let actual = nu!(
cwd: ".", pipeline(
r#"[1 2 3] | all {|| print $in | true }"#
));
assert_eq!(actual.out, "123true");
}
#[test]
fn early_exits_with_1_param_blocks() {
let actual = nu!(
cwd: ".", pipeline(
r#"[1 2 3] | all {|e| print $e | false }"#
));
assert_eq!(actual.out, "1false");
}
#[test]
fn early_exits_with_0_param_blocks() {
let actual = nu!(
cwd: ".", pipeline(
r#"[1 2 3] | all {|| print $in | false }"#
));
assert_eq!(actual.out, "1false");
}
#[test]
fn all_uses_enumerate_index() {
let actual = nu!(
cwd: ".", pipeline(
r#"[7 8 9] | enumerate | all {|el| print $el.index | true }"#
));
assert_eq!(actual.out, "012true");
}
#[test]
fn unique_env_each_iteration() {
let actual = nu!(
cwd: "tests/fixtures/formats",
"[1 2] | all {|| print ($env.PWD | str ends-with 'formats') | cd '/' | true } | to nuon"
);
assert_eq!(actual.out, "truetruetrue");
}