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Rollup merge of #95709 - nnethercote:improve-terse-test-output, r=Dylan-DPC

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Improve terse test output.

The current terse output gives 112 chars per line, which causes
wraparound for people using 100 char wide terminals, which is very
common.

This commit changes it to be exactly 100 wide, which makes the output
look much nicer.
This commit is contained in:
Dylan DPC 2022-04-07 01:59:23 +02:00 • committed by GitHub
commit 687e40a959
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1 changed files with 4 additions and 3 deletions
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7
library/test/src/formatters/terse.rs
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@ -11,8 +11,9 @@ use crate::{
types::TestDesc,
};
// insert a '\n' after 100 tests in quiet mode
const QUIET_MODE_MAX_COLUMN: usize = 100;
// We insert a '\n' when the output hits 100 columns in quiet mode. 88 test
// result chars leaves 12 chars for a progress count like " 11704/12853".
const QUIET_MODE_MAX_COLUMN: usize = 88;
pub(crate) struct TerseFormatter<T> {
out: OutputLocation<T>,
@ -65,7 +66,7 @@ impl<T: Write> TerseFormatter<T> {
) -> io::Result<()> {
self.write_pretty(result, color)?;
if self.test_count % QUIET_MODE_MAX_COLUMN == QUIET_MODE_MAX_COLUMN - 1 {
// we insert a new line every 100 dots in order to flush the
// We insert a new line regularly in order to flush the
// screen when dealing with line-buffered output (e.g., piping to
// `stamp` in the rust CI).
let out = format!(" {}/{}\n", self.test_count + 1, self.total_test_count);