1 files changed, 12 insertions, 0 deletions
diff --git a/test.c b/test.c
index 9da4522..e8289ba 100644
--- a/test.c
+++ b/test.c
@@ -47,12 +47,24 @@ static void test_format_commands() {
         len == 4+4+(3+2)+4+(3+2)+4+(3+2));
     free(cmd);
 
+    test("Format command with %%s and an empty string: ");
+    len = redisFormatCommand(&cmd,"SET %s %s","foo","");
+    test_cond(strncmp(cmd,"*3\r\n$3\r\nSET\r\n$3\r\nfoo\r\n$0\r\n\r\n",len) == 0 &&
+        len == 4+4+(3+2)+4+(3+2)+4+(0+2));
+    free(cmd);
+
     test("Format command with %%b string interpolation: ");
     len = redisFormatCommand(&cmd,"SET %b %b","foo",3,"b\0r",3);
     test_cond(strncmp(cmd,"*3\r\n$3\r\nSET\r\n$3\r\nfoo\r\n$3\r\nb\0r\r\n",len) == 0 &&
         len == 4+4+(3+2)+4+(3+2)+4+(3+2));
     free(cmd);
 
+    test("Format command with %%b and an empty string: ");
+    len = redisFormatCommand(&cmd,"SET %b %b","foo",3,"",0);
+    test_cond(strncmp(cmd,"*3\r\n$3\r\nSET\r\n$3\r\nfoo\r\n$0\r\n\r\n",len) == 0 &&
+        len == 4+4+(3+2)+4+(3+2)+4+(0+2));
+    free(cmd);
+
     const char *argv[3];
     argv[0] = "SET";
     argv[1] = "foo";