nushell/crates/nu-command/tests/commands/str_/collect.rs
Stefan Holderbach 9bc4e6794d
Remove math eval command (#7284)
Reasoning: 

Most missing math commands are implemented with #7258.
The `meval` crate itself declares that it doesn't strive to stringent
standards (https://docs.rs/meval/latest/meval/#related-projects).
For example no particular special casing or transformations are
performed to ensure numerical stability. It uses the same rust `std`
library functions we use or have access to (and `f64`).
While the command call syntax in nushell may be a bit more verbose,
having a single source of truth and common commands is beneficial.
Furthermore the `math` commands can themselves implement broadcasting
over lists (or table columns).

Closes #7073

Removed dependencies:
- `meval`
- `nom 1.2.4` (duplicate)

User-Facing Changes:

Scripts using `math eval` will break. 
We remove a further `eval` like behavior to get results through runtime evaluation (albeit limited in scope)

Tests:

- Updated tests that internally used `math eval`.
- Removed one test that primarily used `math eval` to obtain a result from `str join`
2023-01-04 23:50:18 +01:00

41 lines
651 B
Rust

use nu_test_support::{nu, pipeline};
#[test]
fn test_1() {
let actual = nu!(
cwd: ".", pipeline(
r#"
echo 1..5 | into string | str join
"#
)
);
assert_eq!(actual.out, "12345");
}
#[test]
fn test_2() {
let actual = nu!(
cwd: ".", pipeline(
r#"
echo [a b c d] | str join "<sep>"
"#
)
);
assert_eq!(actual.out, "a<sep>b<sep>c<sep>d");
}
#[test]
fn construct_a_path() {
let actual = nu!(
cwd: ".", pipeline(
r#"
echo [sample txt] | str join "."
"#
)
);
assert_eq!(actual.out, "sample.txt");
}