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Abstracted away Skip/Take for ByteStream using existing filter code

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simon-curtis
2024-11-05 02:22:06 +00:00
committed by Simon Curtis
parent 2a934e75d6
commit 88a785a504
8 changed files with 230 additions and 87 deletions
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48
crates/nu-command/tests/commands/bytes/at.rs
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@ -1,21 +1,63 @@
use nu_test_support::nu;
#[test]
fn returns_error_for_relative_range_on_infinite_stream() {
pub fn returns_error_for_relative_range_on_infinite_stream() {
let actual = nu!("nu --testbin iecho 3 | bytes at ..-3");
assert!(
actual.err.contains(
"Negative range values cannot be used with streams that don't specify a length"
"Relative range values cannot be used with streams that don't specify a length"
),
"Expected error message for negative range with infinite stream"
);
}
#[test]
fn returns_bytes_for_fixed_range_on_infinite_stream() {
pub fn returns_bytes_for_fixed_range_on_infinite_stream() {
let actual = nu!("nu --testbin iecho 3 | bytes at ..10 | decode");
assert_eq!(
actual.out, "33333",
"Expected bytes from index 1 to 10, but got different output"
);
}
#[test]
pub fn test_string_returns_correct_slice_for_simple_positive_slice() {
let actual = nu!("\"Hello World\" | encode utf8 | bytes at ..4 | decode");
assert_eq!(actual.out, "Hello");
}
#[test]
pub fn test_string_returns_correct_slice_for_negative_start() {
let actual = nu!("\"Hello World\" | encode utf8 | bytes at 6..11 | decode");
assert_eq!(actual.out, "World");
}
#[test]
pub fn test_string_returns_correct_slice_for_negative_end() {
let actual = nu!("\"Hello World\" | encode utf8 | bytes at ..-7 | decode");
assert_eq!(actual.out, "Hello");
}
#[test]
pub fn test_string_returns_correct_slice_for_empty_slice() {
let actual = nu!("\"Hello World\" | encode utf8 | bytes at 5..<5 | decode");
assert_eq!(actual.out, "");
}
#[test]
pub fn test_string_returns_correct_slice_for_out_of_bounds() {
let actual = nu!("\"Hello World\" | encode utf8 | bytes at 0..20 | decode");
assert_eq!(actual.out, "Hello World");
}
#[test]
pub fn test_string_returns_correct_slice_for_invalid_range() {
let actual = nu!("\"Hello World\" | encode utf8 | bytes at 11..5 | decode");
assert_eq!(actual.out, "");
}
#[test]
pub fn test_string_returns_correct_slice_for_max_end() {
let actual = nu!("\"Hello World\" | encode utf8 | bytes at 6..<11 | decode");
assert_eq!(actual.out, "World");
}