t5550-http-fetch: add test for http-fetch

Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/t5550-http-fetch.sh

@@ -30,7 +30,8 @@ test_expect_success 'create http-accessible bare repository' '
 '
 
 test_expect_success 'clone http repository' '
-	git clone $HTTPD_URL/dumb/repo.git clone &&
+	git clone $HTTPD_URL/dumb/repo.git clone-tmpl &&
+	cp -R clone-tmpl clone &&
 	test_cmp file clone/file
 '
 
@@ -42,6 +43,17 @@ test_expect_success 'fetch changes via http' '
 	test_cmp file clone/file
 '
 
+test_expect_success 'fetch changes via manual http-fetch' '
+	cp -R clone-tmpl clone2 &&
+
+	HEAD=$(git rev-parse --verify HEAD) &&
+	(cd clone2 &&
+	 git http-fetch -a -w heads/master-new $HEAD $(git config remote.origin.url) &&
+	 git checkout master-new &&
+	 test $HEAD = $(git rev-parse --verify HEAD)) &&
+	test_cmp file clone2/file
+'
+
 test_expect_success 'http remote detects correct HEAD' '
 	git push public master:other &&
 	(cd clone &&