git-commit-vandalism/t/t4018-diff-funcname.sh
Eric Sunshine cbe1d9d630 t4000-t4999: detect and signal failure within loop
Failures within `for` and `while` loops can go unnoticed if not detected
and signaled manually since the loop itself does not abort when a
contained command fails, nor will a failure necessarily be detected when
the loop finishes since the loop returns the exit code of the last
command it ran on the final iteration, which may not be the command
which failed. Therefore, detect and signal failures manually within
loops using the idiom `|| return 1` (or `|| exit 1` within subshells).

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-12-13 10:29:48 -08:00

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#!/bin/sh
#
# Copyright (c) 2007 Johannes E. Schindelin
#
test_description='Test custom diff function name patterns'
. ./test-lib.sh
test_expect_success 'setup' '
# a non-trivial custom pattern
git config diff.custom1.funcname "!static
!String
[^ ].*s.*" &&
# a custom pattern which matches to end of line
git config diff.custom2.funcname "......Beer\$" &&
# alternation in pattern
git config diff.custom3.funcname "Beer$" &&
git config diff.custom3.xfuncname "^[ ]*((public|static).*)$" &&
# for regexp compilation tests
echo A >A.java &&
echo B >B.java
'
test_expect_success 'setup: test-tool userdiff' '
# Make sure additions to builtin_drivers are sorted
test_when_finished "rm builtin-drivers.sorted" &&
test-tool userdiff list-builtin-drivers >builtin-drivers &&
test_file_not_empty builtin-drivers &&
sort <builtin-drivers >builtin-drivers.sorted &&
test_cmp builtin-drivers.sorted builtin-drivers &&
# Ditto, but "custom" requires the .git directory and config
# to be setup and read.
test_when_finished "rm custom-drivers.sorted" &&
test-tool userdiff list-custom-drivers >custom-drivers &&
test_file_not_empty custom-drivers &&
sort <custom-drivers >custom-drivers.sorted &&
test_cmp custom-drivers.sorted custom-drivers
'
diffpatterns="
$(cat builtin-drivers)
$(cat custom-drivers)
"
for p in $diffpatterns
do
test_expect_success "builtin $p pattern compiles" '
echo "*.java diff=$p" >.gitattributes &&
test_expect_code 1 git diff --no-index \
A.java B.java 2>msg &&
test_i18ngrep ! fatal msg &&
test_i18ngrep ! error msg
'
test_expect_success "builtin $p wordRegex pattern compiles" '
echo "*.java diff=$p" >.gitattributes &&
test_expect_code 1 git diff --no-index --word-diff \
A.java B.java 2>msg &&
test_i18ngrep ! fatal msg &&
test_i18ngrep ! error msg
'
done
test_expect_success 'last regexp must not be negated' '
echo "*.java diff=java" >.gitattributes &&
test_config diff.java.funcname "!static" &&
test_expect_code 128 git diff --no-index A.java B.java 2>msg &&
test_i18ngrep ": Last expression must not be negated:" msg
'
test_expect_success 'setup hunk header tests' '
for i in $diffpatterns
do
echo "$i-* diff=$i" || return 1
done > .gitattributes &&
# add all test files to the index
(
cd "$TEST_DIRECTORY"/t4018 &&
git --git-dir="$TRASH_DIRECTORY/.git" add .
) &&
# place modified files in the worktree
for i in $(git ls-files)
do
sed -e "s/ChangeMe/IWasChanged/" <"$TEST_DIRECTORY/t4018/$i" >"$i" || return 1
done
'
# check each individual file
for i in $(git ls-files)
do
test_expect_success "hunk header: $i" "
git diff -U1 $i >actual &&
grep '@@ .* @@.*RIGHT' actual
"
done
test_done