nushell/crates/nu-command/tests/commands/drop.rs
JT 786ba3bf91
Input output checking (#9680)
# Description

This PR tights input/output type-checking a bit more. There are a lot of
commands that don't have correct input/output types, so part of the
effort is updating them.

This PR now contains updates to commands that had wrong input/output
signatures. It doesn't add examples for these new signatures, but that
can be follow-up work.

# User-Facing Changes

BREAKING CHANGE BREAKING CHANGE

This work enforces many more checks on pipeline type correctness than
previous nushell versions. This strictness may uncover incompatibilities
in existing scripts or shortcomings in the type information for internal
commands.

# Tests + Formatting
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2023-07-14 15:20:35 +12:00

96 lines
1.8 KiB
Rust

use nu_test_support::{nu, pipeline};
#[test]
fn columns() {
let actual = nu!(pipeline(
"
echo [
[arepas, color];
[3, white]
[8, yellow]
[4, white]
] | drop column | columns | length
"
));
assert_eq!(actual.out, "1");
}
#[test]
fn drop_columns_positive_value() {
let actual = nu!("echo [[a, b];[1,2]] | drop column -1");
assert!(actual.err.contains("use a positive value"));
}
#[test]
fn more_columns_than_table_has() {
let actual = nu!(pipeline(
"
echo [
[arepas, color];
[3, white]
[8, yellow]
[4, white]
] | drop column 3 | columns | is-empty
"
));
assert_eq!(actual.out, "true");
}
#[test]
fn rows() {
let actual = nu!(pipeline(
"
echo [
[arepas];
[3]
[8]
[4]
]
| drop 2
| get arepas
| math sum
"
));
assert_eq!(actual.out, "3");
}
#[test]
fn more_rows_than_table_has() {
let actual = nu!("[date] | drop 50 | length");
assert_eq!(actual.out, "0");
}
#[test]
fn nth_range_inclusive() {
let actual = nu!("echo 10..15 | drop nth (2..3) | to json --raw");
assert_eq!(actual.out, "[10,11,14,15]");
}
#[test]
fn nth_range_exclusive() {
let actual = nu!("echo 10..15 | drop nth (1..<3) | to json --raw");
assert_eq!(actual.out, "[10,13,14,15]");
}
#[test]
fn nth_missing_first_argument() {
let actual = nu!("echo 10..15 | drop nth \"\"");
assert!(actual.err.contains("int or range"));
}
#[test]
fn fail_on_non_iterator() {
let actual = nu!("1 | drop 50");
assert!(actual.err.contains("command doesn't support"));
}