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Merge pull request #3191 from jfinkels/df-block-size-heading

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df: fix block size header for multiples of 1024
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Sylvestre Ledru 2022-03-07 08:09:03 +01:00 • committed by GitHub
commit 76cb746aca
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4 changed files with 273 additions and 64 deletions
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29
tests/by-util/test_df.rs
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@ -28,6 +28,8 @@ fn test_df_compatible_si() {
#[test]
fn test_df_output() {
// TODO These should fail because `-total` should have two dashes,
// not just one. But they don't fail.
if cfg!(target_os = "macos") {
new_ucmd!().arg("-H").arg("-total").succeeds().
stdout_only("Filesystem Size Used Available Capacity Use% Mounted on \n");
@ -121,4 +123,31 @@ fn test_total() {
// TODO We could also check here that the use percentage matches.
}
#[test]
fn test_block_size_1024() {
fn get_header(block_size: u64) -> String {
// TODO When #3057 is resolved, we should just use
//
// new_ucmd!().arg("--output=size").succeeds().stdout_move_str();
//
// instead of parsing the entire `df` table as a string.
let output = new_ucmd!()
.args(&["-B", &format!("{}", block_size)])
.succeeds()
.stdout_move_str();
let first_line = output.lines().next().unwrap();
let mut column_labels = first_line.split_whitespace();
let size_column_label = column_labels.nth(1).unwrap();
size_column_label.into()
}
assert_eq!(get_header(1024), "1K-blocks");
assert_eq!(get_header(2048), "2K-blocks");
assert_eq!(get_header(4096), "4K-blocks");
assert_eq!(get_header(1024 * 1024), "1M-blocks");
assert_eq!(get_header(2 * 1024 * 1024), "2M-blocks");
assert_eq!(get_header(1024 * 1024 * 1024), "1G-blocks");
assert_eq!(get_header(34 * 1024 * 1024 * 1024), "34G-blocks");
}
// ToDO: more tests...