mirror of
https://github.com/nushell/nushell.git
synced 2024-11-23 08:53:29 +01:00
95d4922e44
Closes #7581. After this PR, `describe` shows `(stream)` next to input that arrived at `describe` as a `ListStream`: ```bash 〉ls | describe table<name: string, type: string, size: filesize, modified: date> (stream) 〉[1 2 3] | each {|i| $i} | describe list<int> (stream) ``` `describe` must collect all items of the stream to display type information for lists and tables. If users need to avoid collecting input, they can use the `-n`/`--no-collect` flag: ```bash 〉[1 2 3] | each {|i| $i} | describe --no-collect stream ```
101 lines
2.1 KiB
Rust
101 lines
2.1 KiB
Rust
use nu_test_support::fs::Stub::EmptyFile;
|
|
use nu_test_support::playground::Playground;
|
|
use nu_test_support::{nu, pipeline};
|
|
|
|
#[test]
|
|
fn gets_the_last_row() {
|
|
let actual = nu!(
|
|
cwd: "tests/fixtures/formats",
|
|
"ls | sort-by name | last 1 | get name.0 | str trim"
|
|
);
|
|
|
|
assert_eq!(actual.out, "utf16.ini");
|
|
}
|
|
|
|
#[test]
|
|
fn gets_last_rows_by_amount() {
|
|
Playground::setup("last_test_1", |dirs, sandbox| {
|
|
sandbox.with_files(vec![
|
|
EmptyFile("los.txt"),
|
|
EmptyFile("tres.txt"),
|
|
EmptyFile("amigos.txt"),
|
|
EmptyFile("arepas.clu"),
|
|
]);
|
|
|
|
let actual = nu!(
|
|
cwd: dirs.test(), pipeline(
|
|
r#"
|
|
ls
|
|
| last 3
|
|
| length
|
|
"#
|
|
));
|
|
|
|
assert_eq!(actual.out, "3");
|
|
})
|
|
}
|
|
|
|
#[test]
|
|
fn gets_last_row_when_no_amount_given() {
|
|
Playground::setup("last_test_2", |dirs, sandbox| {
|
|
sandbox.with_files(vec![EmptyFile("caballeros.txt"), EmptyFile("arepas.clu")]);
|
|
|
|
let actual = nu!(
|
|
cwd: dirs.test(), pipeline(
|
|
r#"
|
|
ls
|
|
| last
|
|
| length
|
|
"#
|
|
));
|
|
|
|
assert_eq!(actual.out, "1");
|
|
})
|
|
}
|
|
|
|
#[test]
|
|
fn requests_more_rows_than_table_has() {
|
|
let actual = nu!(
|
|
cwd: ".", pipeline(
|
|
r#"
|
|
[date] | last 50 | length
|
|
"#
|
|
));
|
|
|
|
assert_eq!(actual.out, "1");
|
|
}
|
|
|
|
#[test]
|
|
fn gets_last_row_as_list_when_amount_given() {
|
|
let actual = nu!(
|
|
cwd: ".", pipeline(
|
|
r#"
|
|
[1, 2, 3]
|
|
| last 1
|
|
| describe
|
|
"#
|
|
));
|
|
|
|
assert_eq!(actual.out, "list<int> (stream)");
|
|
}
|
|
|
|
#[test]
|
|
fn last_errors_on_negative_index() {
|
|
let actual = nu!(
|
|
cwd: ".", pipeline(
|
|
r#"
|
|
[1, 2, 3]
|
|
| last -2
|
|
"#
|
|
));
|
|
|
|
assert!(actual.err.contains("use a positive value"));
|
|
}
|
|
|
|
#[test]
|
|
fn fail_on_non_iterator() {
|
|
let actual = nu!(cwd: ".", pipeline("1 | last"));
|
|
|
|
assert!(actual.err.contains("only_supports_this_input_type"));
|
|
}
|