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od: implement -w (width)

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This commit is contained in:
Wim Hueskes 2016-07-23 21:49:43 +02:00
parent 1b01f02e9e
commit 167d7d3ca9
4 changed files with 78 additions and 8 deletions
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51
tests/test_od.rs
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@ -223,3 +223,54 @@ fn mit_die_umlauten_getesten() {
"0000000 U n i v e r s i t ä ** t T ü **\n0000020 b i n g e n\n0000026")
}
*/
#[test]
fn test_width(){
let input : [u8; 8] = [0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00];
let expected_output = unindent("
0000000 000000 000000
0000004 000000 000000
0000010
");
let result = new_ucmd!().arg("-w4").run_piped_stdin(&input[..]);
assert_empty_stderr!(result);
assert!(result.success);
assert_eq!(result.stdout, expected_output);
}
#[test]
fn test_invalid_width(){
let input : [u8; 4] = [0x00, 0x00, 0x00, 0x00];
let expected_output = unindent("
0000000 000000
0000002 000000
0000004
");
let result = new_ucmd!().arg("-w5").run_piped_stdin(&input[..]);
assert_eq!(result.stderr, "od: warning: invalid width 5; using 2 instead\n");
assert!(result.success);
assert_eq!(result.stdout, expected_output);
}
#[test]
fn test_width_without_value(){
let input : [u8; 40] = [0 ; 40];
let expected_output = unindent("
0000000 000000 000000 000000 000000 000000 000000 000000 000000 000000 000000 000000 000000 000000 000000 000000 000000
0000040 000000 000000 000000 000000
0000050
");
let result = new_ucmd!().arg("-w").run_piped_stdin(&input[..]);
assert_empty_stderr!(result);
assert!(result.success);
assert_eq!(result.stdout, expected_output);
}