nushell/crates/nu-command/tests/commands/let_.rs
Antoine Stevan 545697c0b2
simplify the test for let core command (#9671)
related to
- follow-up of https://github.com/nushell/nushell/pull/9658
- addressed part of https://github.com/nushell/nushell/issues/8670

# Description
removes useless `cwd` and `pipeline()` from the tests of `let`.

# User-Facing Changes
# Tests + Formatting
# After Submitting
2023-07-12 19:33:25 +02:00

58 lines
1.3 KiB
Rust

use nu_test_support::{nu, pipeline};
#[test]
fn let_name_builtin_var() {
let actual = nu!("let in = 3");
assert!(actual
.err
.contains("'in' is the name of a builtin Nushell variable"));
}
#[test]
fn let_doesnt_mutate() {
let actual = nu!("let i = 3; $i = 4");
assert!(actual.err.contains("immutable"));
}
#[test]
fn let_takes_pipeline() {
let actual = nu!(r#"let x = "hello world" | str length; print $x"#);
assert_eq!(actual.out, "11");
}
#[test]
fn let_pipeline_allows_in() {
let actual =
nu!(r#"def foo [] { let x = $in | str length; print ($x + 10) }; "hello world" | foo"#);
assert_eq!(actual.out, "21");
}
#[test]
fn mut_takes_pipeline() {
let actual = nu!(r#"mut x = "hello world" | str length; print $x"#);
assert_eq!(actual.out, "11");
}
#[test]
fn mut_pipeline_allows_in() {
let actual =
nu!(r#"def foo [] { mut x = $in | str length; print ($x + 10) }; "hello world" | foo"#);
assert_eq!(actual.out, "21");
}
#[ignore]
#[test]
fn let_with_external_failed() {
// FIXME: this test hasn't run successfully for a long time. We should
// bring it back to life at some point.
let actual = nu!(r#"let x = nu --testbin outcome_err "aa"; echo fail"#);
assert!(!actual.out.contains("fail"));
}