git/t/t4025-hunk-header.sh
Jeff King 82ebb0b6ec add test_cmp function for test scripts
Many scripts compare actual and expected output using
"diff -u". This is nicer than "cmp" because the output shows
how the two differ. However, not all versions of diff
understand -u, leading to unnecessary test failure.

This adds a test_cmp function to the test scripts and
switches all "diff -u" invocations to use it. The function
uses the contents of "$GIT_TEST_CMP" to compare its
arguments; the default is "diff -u".

On systems with a less-capable diff, you can do:

  GIT_TEST_CMP=cmp make test

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-13 00:57:52 -07:00

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#!/bin/sh
test_description='diff hunk header truncation'
. ./test-lib.sh
N='日本語'
N1='日'
N2='日本'
NS="$N$N$N$N$N$N$N$N$N$N$N$N$N"
test_expect_success setup '
(
echo "A $NS"
for c in B C D E F G H I J K
do
echo " $c"
done
echo "L $NS"
for c in M N O P Q R S T U V
do
echo " $c"
done
) >file &&
git add file &&
sed -e "/^ [EP]/s/$/ modified/" <file >file+ &&
mv file+ file
'
test_expect_success 'hunk header truncation with an overly long line' '
git diff | sed -n -e "s/^.*@@//p" >actual &&
(
echo " A $N$N$N$N$N$N$N$N$N2"
echo " L $N$N$N$N$N$N$N$N$N1"
) >expected &&
test_cmp actual expected
'
test_done