Add a test for backreferences such as (.)\1 in PCRE patterns. This
test ensures that the PCRE_NO_AUTO_CAPTURE option isn't turned
on. Before this change turning it on would break these sort of
patterns, but wouldn't break any tests.
Signed-off-by: Ævar Arnfjörð Bjarmason <ava...@gmail.com>
---
t/t7810-grep.sh | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/t/t7810-grep.sh b/t/t7810-grep.sh
index 8d69113695..daa906b9b0 100755
--- a/t/t7810-grep.sh
+++ b/t/t7810-grep.sh
@@ -1114,6 +1114,13 @@ test_expect_success PCRE 'grep -P -w pattern' '
test_cmp expected actual
'
+test_expect_success PCRE 'grep -P backreferences work (the PCRE
NO_AUTO_CAPTURE flag is not set)' '
+ git grep -P -h "(?P<one>.)(?P=one)" hello_world >actual &&
+ test_cmp hello_world actual &&
+ git grep -P -h "(.)\1" hello_world >actual &&
+ test_cmp hello_world actual
+'
+
test_expect_success 'grep -G invalidpattern properly dies ' '
test_must_fail git grep -G "a["
'
--
2.11.0
