t9300: factor out portable "head -c" replacement

diff --git a/t/t5551-http-fetch-smart.sh b/t/t5551-http-fetch-smart.sh
index a540c6da23782c47a08b2e7bc684d68fe8e80934..2f375eb94d528baefad038ff5b07baf0fe08d1fc 100755 (executable)
--- a/t/t5551-http-fetch-smart.sh
+++ b/t/t5551-http-fetch-smart.sh
@@ -2,12 +2,6 @@
 
 test_description='test smart fetching over http via http-backend'
 . ./test-lib.sh
-
-if test -n "$NO_CURL"; then
-       skip_all='skipping test, git built without http support'
-       test_done
-fi
-
 . "$TEST_DIRECTORY"/lib-httpd.sh
 start_httpd
 
@@ -288,5 +282,22 @@ test_expect_success EXPENSIVE 'http can handle enormous ref negotiation' '
        test_line_count = 100000 tags
 '
 
+test_expect_success 'custom http headers' '
+       test_must_fail git -c http.extraheader="x-magic-two: cadabra" \
+               fetch "$HTTPD_URL/smart_headers/repo.git" &&
+       git -c http.extraheader="x-magic-one: abra" \
+           -c http.extraheader="x-magic-two: cadabra" \
+           fetch "$HTTPD_URL/smart_headers/repo.git" &&
+       git update-index --add --cacheinfo 160000,$(git rev-parse HEAD),sub &&
+       git config -f .gitmodules submodule.sub.path sub &&
+       git config -f .gitmodules submodule.sub.url \
+               "$HTTPD_URL/smart_headers/repo.git" &&
+       git submodule init sub &&
+       test_must_fail git submodule update sub &&
+       git -c http.extraheader="x-magic-one: abra" \
+           -c http.extraheader="x-magic-two: cadabra" \
+               submodule update sub
+'
+
 stop_httpd
 test_done