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remove unwrap-flag from dc_truncate() - it was never really used on-purpose

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This commit is contained in:
B. Petersen
2020-02-29 17:49:31 +01:00
committed by holger krekel
parent 5cc26762c2
commit 0e4031348f
2 changed files with 20 additions and 37 deletions
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49
src/dc_tools.rs
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@@ -21,8 +21,8 @@ pub(crate) fn dc_exactly_one_bit_set(v: i32) -> bool {
/// Shortens a string to a specified length and adds "..." or "[...]" to the end of
/// the shortened string.
pub(crate) fn dc_truncate(buf: &str, approx_chars: usize, do_unwrap: bool) -> Cow<str> {
let ellipse = if do_unwrap { "..." } else { "[...]" };
pub(crate) fn dc_truncate(buf: &str, approx_chars: usize) -> Cow<str> {
let ellipse = "[...]";
let count = buf.chars().count();
if approx_chars > 0 && count > approx_chars + ellipse.len() {
@@ -538,54 +538,42 @@ mod tests {
#[test]
fn test_dc_truncate_1() {
let s = "this is a little test string";
assert_eq!(dc_truncate(s, 16, false), "this is a [...]");
assert_eq!(dc_truncate(s, 16, true), "this is a ...");
assert_eq!(dc_truncate(s, 16), "this is a [...]");
}
#[test]
fn test_dc_truncate_2() {
assert_eq!(dc_truncate("1234", 2, false), "1234");
assert_eq!(dc_truncate("1234", 2, true), "1234");
assert_eq!(dc_truncate("1234", 2), "1234");
}
#[test]
fn test_dc_truncate_3() {
assert_eq!(dc_truncate("1234567", 1, false), "1[...]");
assert_eq!(dc_truncate("1234567", 1, true), "1...");
assert_eq!(dc_truncate("1234567", 1), "1[...]");
}
#[test]
fn test_dc_truncate_4() {
assert_eq!(dc_truncate("123456", 4, false), "123456");
assert_eq!(dc_truncate("123456", 4, true), "123456");
assert_eq!(dc_truncate("123456", 4), "123456");
}
#[test]
fn test_dc_truncate_edge() {
assert_eq!(dc_truncate("", 4, false), "");
assert_eq!(dc_truncate("", 4, true), "");
assert_eq!(dc_truncate("", 4), "");
assert_eq!(dc_truncate("\n hello \n world", 4, false), "\n [...]");
assert_eq!(dc_truncate("\n hello \n world", 4, true), "\n ...");
assert_eq!(dc_truncate("\n hello \n world", 4), "\n [...]");
assert_eq!(dc_truncate("𐠈0Aᝮa𫝀®!ꫛa¡0A𐢧00𐹠®A 丽ⷐએ", 1), "𐠈[...]");
assert_eq!(
dc_truncate("𐠈0Aᝮa𫝀®!ꫛa¡0A𐢧00𐹠®A 丽ⷐએ", 1, false),
"𐠈[...]"
);
assert_eq!(
dc_truncate("𐠈0Aᝮa𫝀®!ꫛa¡0A𐢧00𐹠®A 丽ⷐએ", 0, false),
dc_truncate("𐠈0Aᝮa𫝀®!ꫛa¡0A𐢧00𐹠®A 丽ⷐએ", 0),
"𐠈0Aᝮa𫝀®!ꫛa¡0A𐢧00𐹠®A 丽ⷐએ"
);
// 9 characters, so no truncation
assert_eq!(
dc_truncate("𑒀ὐ￠🜀\u{1e01b}A a🟠", 6, false),
"𑒀ὐ￠🜀\u{1e01b}A a🟠",
);
assert_eq!(dc_truncate("𑒀ὐ￠🜀\u{1e01b}A a🟠", 6), "𑒀ὐ￠🜀\u{1e01b}A a🟠",);
// 12 characters, truncation
assert_eq!(
dc_truncate("𑒀ὐ￠🜀\u{1e01b}A a🟠bcd", 6, false),
dc_truncate("𑒀ὐ￠🜀\u{1e01b}A a🟠bcd", 6),
"𑒀ὐ￠🜀\u{1e01b}A[...]",
);
}
@@ -701,11 +689,10 @@ mod tests {
#[test]
fn test_dc_truncate(
buf: String,
approx_chars in 0..10000usize,
do_unwrap: bool,
approx_chars in 0..10000usize
) {
let res = dc_truncate(&buf, approx_chars, do_unwrap);
let el_len = if do_unwrap { 3 } else { 5 };
let res = dc_truncate(&buf, approx_chars);
let el_len = 5;
let l = res.chars().count();
if approx_chars > 0 {
assert!(
@@ -719,11 +706,7 @@ mod tests {
if approx_chars > 0 && buf.chars().count() > approx_chars + el_len {
let l = res.len();
if do_unwrap {
assert_eq!(&res[l-3..l], "...", "missing ellipsis in {}", &res);
} else {
assert_eq!(&res[l-5..l], "[...]", "missing ellipsis in {}", &res);
}
assert_eq!(&res[l-5..l], "[...]", "missing ellipsis in {}", &res);
}
}
}