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test: Fix a bug in bench result formatting

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It would skip the middle part if it was 0, displaying a number a 1000
times too small. The MB/s number next to it gave it away.

Fixed it looks like this:

```
test h ... bench:   1,000,129 ns/iter (+/- 4,730)
```
This commit is contained in:
Ulrik Sverdrup 2015-06-16 13:10:27 +02:00
parent f6341a878e
commit 04315949fb
1 changed files with 4 additions and 4 deletions
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8
src/libtest/lib.rs
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@ -629,11 +629,11 @@ impl<T: Write> ConsoleTestState<T> {
fn fmt_thousands_sep(mut n: usize, sep: char) -> String {
use std::fmt::Write;
let mut output = String::new();
let mut first = true;
let mut trailing = false;
for &pow in &[9, 6, 3, 0] {
let base = 10_usize.pow(pow);
if pow == 0 || n / base != 0 {
if first {
if pow == 0 || trailing || n / base != 0 {
if !trailing {
output.write_fmt(format_args!("{}", n / base)).unwrap();
} else {
output.write_fmt(format_args!("{:03}", n / base)).unwrap();
@ -641,7 +641,7 @@ fn fmt_thousands_sep(mut n: usize, sep: char) -> String {
if pow != 0 {
output.push(sep);
}
first = false;
trailing = true;
}
n %= base;
}