Mercurial > hg > mercurial-crew-with-dirclash
view tests/test-diff-ignore-whitespace @ 4135:6cb6cfe43c5d
Avoid some false positives for addremove -s
The original code uses the similary score
1 - len(diff(after, before)) / len(after)
The diff can at most be the size of the 'before' file, so any small
'before' file would be considered very similar. Removing an empty file
would cause all files added in the same revision to be considered
copies of the removed file.
This changes the metric to
bytes_overlap(before, after) / len(before + after)
i.e. the actual percentage of bytes shared between the two files.
author | Erling Ellingsen <erlingalf@gmail.com> |
---|---|
date | Sun, 18 Feb 2007 20:39:25 +0100 |
parents | 096f1c73cdc3 |
children | 372d93f03d3a |
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#!/bin/sh # GNU diff is the reference for all of these results. hgdiff() { hg diff --nodates "$@" } test_added_blank_lines() { printf '\nhello world\n\ngoodbye world\n\n' >foo echo '>>> two diffs showing three added lines <<<' hgdiff hgdiff -b echo '>>> no diffs <<<' hgdiff -B hgdiff -Bb } test_added_horizontal_space_first_on_a_line() { printf '\t hello world\ngoodbye world\n' >foo echo '>>> four diffs showing added space first on the first line <<<' hgdiff hgdiff -b hgdiff -B hgdiff -Bb } test_added_horizontal_space_last_on_a_line() { printf 'hello world\t \ngoodbye world\n' >foo echo '>>> two diffs showing space appended to the first line <<<' hgdiff hgdiff -B echo '>>> no diffs <<<' hgdiff -b hgdiff -Bb } test_added_horizontal_space_in_the_middle_of_a_word() { printf 'hello world\ngood bye world\n' >foo echo '>>> four diffs showing space inserted into "goodbye" <<<' hgdiff hgdiff -B hgdiff -b hgdiff -Bb } test_increased_horizontal_whitespace_amount() { printf 'hello world\ngoodbye\t\t \tworld\n' >foo echo '>>> two diffs showing changed whitespace amount in the last line <<<' hgdiff hgdiff -B echo '>>> no diffs <<<' hgdiff -b hgdiff -Bb } test_added_blank_line_with_horizontal_whitespace() { printf 'hello world\n \t\ngoodbye world\n' >foo echo '>>> four diffs showing added blank line w/horizontal space <<<' hgdiff hgdiff -B hgdiff -b hgdiff -Bb } hg init printf 'hello world\ngoodbye world\n' >foo hg ci -Amfoo -ufoo -d '0 0' test_added_blank_lines test_added_horizontal_space_first_on_a_line test_added_horizontal_space_last_on_a_line test_added_horizontal_space_in_the_middle_of_a_word test_increased_horizontal_whitespace_amount test_added_blank_line_with_horizontal_whitespace