nushell/crates/nu-command/tests/commands/take/rows.rs

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use nu_test_support::fs::Stub::FileWithContentToBeTrimmed;
use nu_test_support::playground::Playground;
use nu_test_support::{nu, pipeline};
#[test]
fn rows() {
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Playground::setup("take_test_1", |dirs, sandbox| {
sandbox.with_files(vec![FileWithContentToBeTrimmed(
"caballeros.csv",
r#"
name,lucky_code
Andrés,1
Jonathan,1
Jason,2
Yehuda,1
"#,
)]);
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"
open caballeros.csv
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| take 3
| get lucky_code
| math sum
"#
));
assert_eq!(actual.out, "4");
})
}
#[test]
fn rows_with_no_arguments_should_lead_to_error() {
Playground::setup("take_test_2", |dirs, _sandbox| {
let actual = nu!(
cwd: dirs.test(), pipeline(
r#"[1 2 3] | take"#
));
assert!(actual.err.contains("missing_positional"));
})
}
#[test]
fn fails_on_string() {
let actual = nu!(
cwd: ".", pipeline(
r#"
"foo bar" | take 2
"#
));
assert!(actual.err.contains("unsupported_input"));
}
#[test]
// covers a situation where `take` used to behave strangely on list<binary> input
fn works_with_binary_list() {
let actual = nu!(
cwd: ".", pipeline(
r#"
([0x[01 11]] | take 1 | get 0) == 0x[01 11]
"#
));
assert_eq!(actual.out, "true");
}