1 files changed, 59 insertions, 1 deletions
diff --git a/t/t0020-crlf.sh b/t/t0020-crlf.sh
index 8b27aa892b..2bfeac986e 100755
--- a/t/t0020-crlf.sh
+++ b/t/t0020-crlf.sh
@@ -5,7 +5,11 @@ test_description='CRLF conversion'
 . ./test-lib.sh
 
 q_to_nul () {
-	tr Q '\000'
+	perl -pe 'y/Q/\000/'
+}
+
+q_to_cr () {
+	tr Q '\015'
 }
 
 append_cr () {
@@ -42,6 +46,60 @@ test_expect_success setup '
 	echo happy.
 '
 
+test_expect_success 'safecrlf: autocrlf=input, all CRLF' '
+
+	git config core.autocrlf input &&
+	git config core.safecrlf true &&
+
+	for w in I am all CRLF; do echo $w; done | append_cr >allcrlf &&
+	! git add allcrlf
+'
+
+test_expect_success 'safecrlf: autocrlf=input, mixed LF/CRLF' '
+
+	git config core.autocrlf input &&
+	git config core.safecrlf true &&
+
+	for w in Oh here is CRLFQ in text; do echo $w; done | q_to_cr >mixed &&
+	! git add mixed
+'
+
+test_expect_success 'safecrlf: autocrlf=true, all LF' '
+
+	git config core.autocrlf true &&
+	git config core.safecrlf true &&
+
+	for w in I am all LF; do echo $w; done >alllf &&
+	! git add alllf
+'
+
+test_expect_success 'safecrlf: autocrlf=true mixed LF/CRLF' '
+
+	git config core.autocrlf true &&
+	git config core.safecrlf true &&
+
+	for w in Oh here is CRLFQ in text; do echo $w; done | q_to_cr >mixed &&
+	! git add mixed
+'
+
+test_expect_success 'safecrlf: print warning only once' '
+
+	git config core.autocrlf input &&
+	git config core.safecrlf warn &&
+
+	for w in I am all LF; do echo $w; done >doublewarn &&
+	git add doublewarn &&
+	git commit -m "nowarn" &&
+	for w in Oh here is CRLFQ in text; do echo $w; done | q_to_cr >doublewarn &&
+	test $(git add doublewarn 2>&1 | grep "CRLF will be replaced by LF" | wc -l) = 1
+'
+
+test_expect_success 'switch off autocrlf, safecrlf, reset HEAD' '
+	git config core.autocrlf false &&
+	git config core.safecrlf false &&
+	git reset --hard HEAD^
+'
+
 test_expect_success 'update with autocrlf=input' '
 
 	rm -f tmp one dir/two three &&