[PATCH] git-grep: Update tests (mainly for -P)

["Michał Kiedrowicz" <michal.kiedrowicz@gmail.com>]

This patch adds few more tests to git-grep concerning the
-P/--perl-regexp option.

While at it, add some generic tests for grep.extendedRegexp config
option, for detecting invalid regexep and check if "last one wins" rule
works for selecting regexp type.

Signed-off-by: Michał Kiedrowicz <michal.kiedrowicz@gmail.com>
---
This is the promised update to tests and is meant to be applied on top of
mk/grep-pcre.

 t/t7810-grep.sh |   85 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 85 insertions(+), 0 deletions(-)

diff --git a/t/t7810-grep.sh b/t/t7810-grep.sh
index e845218..e061108 100755
--- a/t/t7810-grep.sh
+++ b/t/t7810-grep.sh
@@ -32,6 +32,11 @@ test_expect_success setup '
 		echo Hello_world
 		echo HeLLo_world
 	} >hello_world &&
+	{
+		echo aab
+		echo a+b
+		echo a\\+b
+	} >ab &&
 	echo vvv >v &&
 	echo ww w >w &&
 	echo x x xx x >x &&
@@ -227,7 +232,17 @@ do
 		git grep --max-depth 0 -n -e vvv $H -- t . >actual &&
 		test_cmp expected actual
 	'
+	test_expect_success "grep $L with grep.extendedRegexp=false" '
+		echo "ab:a+b" >expected &&
+		git -c grep.extendedRegexp=false grep "a+b" >actual &&
+		test_cmp expected actual
+	'
 
+	test_expect_success "grep $L with grep.extendedRegexp=true" '
+		echo "ab:aab" >expected &&
+		git -c grep.extendedRegexp=true grep "a+b" >actual &&
+		test_cmp expected actual
+	'
 done
 
 cat >expected <<EOF
@@ -620,6 +635,28 @@ test_expect_success LIBPCRE 'grep -P pattern' '
 	test_cmp expected actual
 '
 
+test_expect_success 'grep pattern with grep.extendedRegexp=true' '
+	:>empty &&
+	test_must_fail git -c grep.extendedregexp=true \
+		grep "\p{Ps}.*?\p{Pe}" hello.c >actual &&
+	test_cmp empty actual
+'
+
+test_expect_success LIBPCRE 'grep -P pattern with grep.extendedRegexp=true' '
+	git -c grep.extendedregexp=true \
+		grep -P "\p{Ps}.*?\p{Pe}" hello.c >actual &&
+	test_cmp expected actual
+'
+
+test_expect_success LIBPCRE 'grep -P -v pattern' '
+	{
+		echo ab:a+b
+		echo ab:a\\+b
+	} >expected &&
+	git grep -P -v "aab" ab >actual &&
+	test_cmp expected actual
+'
+
 test_expect_success LIBPCRE 'grep -P -i pattern' '
 	{
 		echo "hello.c:	printf(\"Hello world.\n\");"
@@ -637,4 +674,52 @@ test_expect_success LIBPCRE 'grep -P -w pattern' '
 	test_cmp expected actual
 '
 
+test_expect_success 'grep -G invalidpattern properly dies ' '
+	test_must_fail git grep -G "a["
+'
+
+test_expect_success 'grep -E invalidpattern properly dies ' '
+	test_must_fail git grep -E "a["
+'
+
+test_expect_success LIBPCRE 'grep -P invalidpattern properly dies ' '
+	test_must_fail git grep -P "a["
+'
+
+test_expect_success 'grep -F -E -G pattern' '
+	echo ab:a+b >expected &&
+	git grep -F -E -G a+b >actual &&
+	test_cmp expected actual
+'
+
+test_expect_success 'grep -F -G -E pattern' '
+	echo ab:aab >expected &&
+	git grep -F -G -E a+b >actual &&
+	test_cmp expected actual
+'
+
+test_expect_success 'grep -E -F -G pattern' '
+	echo ab:aab >expected &&
+	git grep -E -F -G a\\+b >actual &&
+	test_cmp expected actual
+'
+
+test_expect_success 'grep -E -G -F pattern' '
+	echo ab:a\\+b >expected &&
+	git grep -E -G -F a\\+b >actual &&
+	test_cmp expected actual
+'
+
+test_expect_success 'grep -G -F -E pattern' '
+	echo ab:a+b >expected &&
+	git grep -G -F -E a\\+b >actual &&
+	test_cmp expected actual
+'
+
+test_expect_success LIBPCRE 'grep -E -G -F -P pattern' '
+	echo ab:a+b >expected &&
+	git grep -E -G -F -P a\\+b >actual &&
+	test_cmp expected actual
+'
+
 test_done
-- 
1.7.3.4