git/t/t4055-diff-context.sh
Junio C Hamano 6789275d37 tests: teach callers of test_i18ngrep to use test_grep
They are equivalents and the former still exists, so as long as the
only change this commit makes are to rewrite test_i18ngrep to
test_grep, there won't be any new bug, even if there still are
callers of test_i18ngrep remaining in the tree, or when merged to
other topics that add new uses of test_i18ngrep.

This patch was produced more or less with

    git grep -l -e 'test_i18ngrep ' 't/t[0-9][0-9][0-9][0-9]-*.sh' |
    xargs perl -p -i -e 's/test_i18ngrep /test_grep /'

and a good way to sanity check the result yourself is to run the
above in a checkout of c4603c1c (test framework: further deprecate
test_i18ngrep, 2023-10-31) and compare the resulting working tree
contents with the result of applying this patch to the same commit.
You'll see that test_i18ngrep in a few t/lib-*.sh files corrected,
in addition to the manual reproduction.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-11-02 17:13:44 +09:00

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#!/bin/sh
#
# Copyright (c) 2012 Mozilla Foundation
#
test_description='diff.context configuration'
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
test_expect_success 'setup' '
cat >template <<-\EOF &&
firstline
b
c
d
e
f
preline
TARGET
postline
i
j
k
l
m
n
EOF
sed "/TARGET/d" >x <template &&
git update-index --add x &&
git commit -m initial &&
sed "s/TARGET/ADDED/" >x <template &&
git update-index --add x &&
git commit -m next &&
sed "s/TARGET/MODIFIED/" >x <template
'
test_expect_success 'the default number of context lines is 3' '
git diff >output &&
! grep "^ d" output &&
grep "^ e" output &&
grep "^ j" output &&
! grep "^ k" output
'
test_expect_success 'diff.context honored by "log"' '
git log -1 -p >output &&
! grep firstline output &&
git config diff.context 8 &&
git log -1 -p >output &&
grep "^ firstline" output
'
test_expect_success 'The -U option overrides diff.context' '
git config diff.context 8 &&
git log -U4 -1 >output &&
! grep "^ firstline" output
'
test_expect_success 'diff.context honored by "diff"' '
git config diff.context 8 &&
git diff >output &&
grep "^ firstline" output
'
test_expect_success 'plumbing not affected' '
git config diff.context 8 &&
git diff-files -p >output &&
! grep "^ firstline" output
'
test_expect_success 'non-integer config parsing' '
git config diff.context no &&
test_must_fail git diff 2>output &&
test_grep "bad numeric config value" output
'
test_expect_success 'negative integer config parsing' '
git config diff.context -1 &&
test_must_fail git diff 2>output &&
test_grep "bad config variable" output
'
test_expect_success '-U0 is valid, so is diff.context=0' '
git config diff.context 0 &&
git diff >output &&
grep "^-ADDED" output &&
grep "^+MODIFIED" output
'
test_done