Tests passing

crates/nu-command/tests/commands/bytes/at.rs

@@ -5,18 +5,27 @@ pub fn returns_error_for_relative_range_on_infinite_stream() {
     let actual = nu!("nu --testbin iecho 3 | bytes at ..-3");
     assert!(
         actual.err.contains(
-            "Relative range values cannot be used with streams that don't specify a length"
+            "Relative range values cannot be used with streams that don't have a known length"
         ),
         "Expected error message for negative range with infinite stream"
     );
 }
 
 #[test]
-pub fn returns_bytes_for_fixed_range_on_infinite_stream() {
+pub fn returns_bytes_for_fixed_range_on_infinite_stream_including_end() {
     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"
+        "Expected bytes from index 0 to 10, but got different output"
+    );
+}
+
+#[test]
+pub fn returns_bytes_for_fixed_range_on_infinite_stream_excluding_end() {
+    let actual = nu!("nu --testbin iecho 3 | bytes at ..<9 | decode");
+    assert_eq!(
+        actual.out, "3333",
+        "Expected bytes from index 0 to 8, but got different output"
     );
 }
 
@@ -28,7 +37,7 @@ pub fn test_string_returns_correct_slice_for_simple_positive_slice() {
 
 #[test]
 pub fn test_string_returns_correct_slice_for_negative_start() {
-    let actual = nu!("\"Hello World\" | encode utf8 | bytes at 6..11 | decode");
+    let actual = nu!("\"Hello World\" | encode utf8 | bytes at (-5)..10 | decode");
     assert_eq!(actual.out, "World");
 }
 
@@ -46,7 +55,7 @@ pub fn test_string_returns_correct_slice_for_empty_slice() {
 
 #[test]
 pub fn test_string_returns_correct_slice_for_out_of_bounds() {
-    let actual = nu!("\"Hello World\" | encode utf8 | bytes at 0..20 | decode");
+    let actual = nu!("\"Hello World\" | encode utf8 | bytes at ..20 | decode");
     assert_eq!(actual.out, "Hello World");
 }