nushell/crates/nu-command/tests/commands/update.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

127 lines
2.8 KiB
Rust

use nu_test_support::{nu, pipeline};
#[test]
fn sets_the_column() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
open cargo_sample.toml
| update dev-dependencies.pretty_assertions "0.7.0"
| get dev-dependencies.pretty_assertions
"#
));
assert_eq!(actual.out, "0.7.0");
}
#[test]
fn doesnt_convert_record_to_table() {
let actual = nu!(
cwd: ".", r#"{a:1} | update a 2 | to nuon"#
);
assert_eq!(actual.out, "{a: 2}");
}
#[cfg(features = "inc")]
#[test]
fn sets_the_column_from_a_block_run_output() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
open cargo_sample.toml
| update dev-dependencies.pretty_assertions { open cargo_sample.toml | get dev-dependencies.pretty_assertions | inc --minor }
| get dev-dependencies.pretty_assertions
"#
));
assert_eq!(actual.out, "0.7.0");
}
#[test]
fn sets_the_column_from_a_block_full_stream_output() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
{content: null}
| update content {|| open --raw cargo_sample.toml | lines | first 5 }
| get content.1
| str contains "nu"
"#
));
assert_eq!(actual.out, "true");
}
#[test]
fn sets_the_column_from_a_subexpression() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
{content: null}
| update content (open --raw cargo_sample.toml | lines | first 5)
| get content.1
| str contains "nu"
"#
));
assert_eq!(actual.out, "true");
}
#[test]
fn upsert_column_missing() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
open cargo_sample.toml
| update dev-dependencies.new_assertions "0.7.0"
"#
));
assert!(actual.err.contains("cannot find column"));
}
#[test]
fn update_list() {
let actual = nu!(
cwd: ".", pipeline(
r#"
[1, 2, 3] | update 1 abc | to json -r
"#
));
assert_eq!(actual.out, r#"[1,"abc",3]"#);
}
#[test]
fn update_past_end_list() {
let actual = nu!(
cwd: ".", pipeline(
r#"
[1, 2, 3] | update 5 abc | to json -r
"#
));
assert!(actual.err.contains("too large"));
}
#[test]
fn update_nonexistent_column() {
let actual = nu!(
cwd: ".", pipeline(
r#"{a:1} | update b 2"#
));
assert!(actual.err.contains("cannot find column 'b'"));
}
#[test]
fn update_uses_enumerate_index() {
let actual = nu!(
cwd: ".", pipeline(
r#"[[a]; [7] [6]] | enumerate | update item.a {|el| $el.index + 1 + $el.item.a } | flatten | to nuon"#
));
assert_eq!(actual.out, "[[index, a]; [0, 8], [1, 8]]");
}