t/helper: merge test-strcmp-offset into test-tool

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Makefile

@@ -680,6 +680,7 @@ TEST_BUILTINS_OBJS += test-scrap-cache-tree.o
 TEST_BUILTINS_OBJS += test-sha1-array.o
 TEST_BUILTINS_OBJS += test-sha1.o
 TEST_BUILTINS_OBJS += test-sigchain.o
+TEST_BUILTINS_OBJS += test-strcmp-offset.o
 
 TEST_PROGRAMS_NEED_X += test-dump-fsmonitor
 TEST_PROGRAMS_NEED_X += test-dump-untracked-cache
@@ -687,7 +688,6 @@ TEST_PROGRAMS_NEED_X += test-fake-ssh
 TEST_PROGRAMS_NEED_X += test-line-buffer
 TEST_PROGRAMS_NEED_X += test-parse-options
 TEST_PROGRAMS_NEED_X += test-write-cache
-TEST_PROGRAMS_NEED_X += test-strcmp-offset
 TEST_PROGRAMS_NEED_X += test-string-list
 TEST_PROGRAMS_NEED_X += test-submodule-config
 TEST_PROGRAMS_NEED_X += test-subprocess

t/helper/test-strcmp-offset.c

@@ -1,6 +1,7 @@
+#include "test-tool.h"
 #include "cache.h"
 
-int cmd_main(int argc, const char **argv)
+int cmd__strcmp_offset(int argc, const char **argv)
 {
 	int result;
 	size_t offset;

t/helper/test-tool.c

@@ -35,6 +35,7 @@ static struct test_cmd cmds[] = {
 	{ "sha1-array", cmd__sha1_array },
 	{ "sha1", cmd__sha1 },
 	{ "sigchain", cmd__sigchain },
+	{ "strcmp-offset", cmd__strcmp_offset },
 };
 
 int cmd_main(int argc, const char **argv)

t/helper/test-tool.h

@@ -29,5 +29,6 @@ int cmd__scrap_cache_tree(int argc, const char **argv);
 int cmd__sha1_array(int argc, const char **argv);
 int cmd__sha1(int argc, const char **argv);
 int cmd__sigchain(int argc, const char **argv);
+int cmd__strcmp_offset(int argc, const char **argv);
 
 #endif

t/t0065-strcmp-offset.sh

@@ -8,7 +8,7 @@ while read s1 s2 expect
 do
 	test_expect_success "strcmp_offset($s1, $s2)" '
 		echo "$expect" >expect &&
-		test-strcmp-offset "$s1" "$s2" >actual &&
+		test-tool strcmp-offset "$s1" "$s2" >actual &&
 		test_cmp expect actual
 	'
 done <<-EOF