3 files changed, 77 insertions, 3 deletions
diff --git a/unittest/mysys/CMakeLists.txt b/unittest/mysys/CMakeLists.txt
index b209da39edc..41822b1e195 100644
--- a/unittest/mysys/CMakeLists.txt
+++ b/unittest/mysys/CMakeLists.txt
@@ -13,9 +13,9 @@
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 
-MY_ADD_TESTS(bitmap base64 my_vsnprintf my_atomic my_rdtsc lf my_malloc
-             my_getopt
+MY_ADD_TESTS(bitmap base64 my_atomic my_rdtsc lf my_malloc my_getopt dynstring
              LINK_LIBRARIES mysys)
+MY_ADD_TESTS(my_vsnprintf LINK_LIBRARIES strings mysys)
 
 MY_ADD_TESTS(ma_dyncol
 	     LINK_LIBRARIES mysqlclient)
diff --git a/unittest/mysys/dynstring-t.c b/unittest/mysys/dynstring-t.c
new file mode 100644
index 00000000000..fed8488da2c
--- /dev/null
+++ b/unittest/mysys/dynstring-t.c
@@ -0,0 +1,74 @@
+/* Copyright (c) 2016, MariaDB
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; version 2 of the License.
+
+   This program is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */
+
+//#include <my_global.h>
+#include <m_string.h>
+#include <my_sys.h>
+#include <tap.h>
+
+DYNAMIC_STRING str1;
+
+static void check(const char *res)
+{
+  ok(strcmp(str1.str, res) == 0, "strcmp: %s", str1.str);
+  str1.length= 0;
+}
+
+int main(void)
+{
+  plan(23);
+
+  IF_WIN(skip_all("Test of POSIX shell escaping rules, not for CMD.EXE\n"), );
+
+  ok(init_dynamic_string(&str1, NULL, 0, 32) == 0, "init");
+
+  ok(dynstr_append_os_quoted(&str1, "test1", NULL) == 0, "append");
+  check("'test1'");
+
+  ok(dynstr_append_os_quoted(&str1, "con", "cat", NULL) == 0, "append");
+  check("'concat'");
+
+  ok(dynstr_append_os_quoted(&str1, "", NULL) == 0, "append");
+  check("''");
+
+  ok(dynstr_append_os_quoted(&str1, "space inside", NULL) == 0, "append");
+  check("'space inside'");
+
+  ok(dynstr_append_os_quoted(&str1, "single'quote", NULL) == 0, "append");
+  check("'single'\"'\"'quote'");
+
+  ok(dynstr_append_os_quoted(&str1, "many'single'quotes", NULL) == 0, "append");
+  check("'many'\"'\"'single'\"'\"'quotes'");
+
+  ok(dynstr_append_os_quoted(&str1, "'single quoted'", NULL) == 0, "append");
+  check("''\"'\"'single quoted'\"'\"''");
+
+  ok(dynstr_append_os_quoted(&str1, "double\"quote", NULL) == 0, "append");
+  check("'double\"quote'");
+
+  ok(dynstr_append_os_quoted(&str1, "mixed\"single'and\"double'quotes", NULL) == 0, "append");
+  check("'mixed\"single'\"'\"'and\"double'\"'\"'quotes'");
+
+  ok(dynstr_append_os_quoted(&str1, "back\\space", NULL) == 0, "append");
+  check("'back\\space'");
+
+  ok(dynstr_append_os_quoted(&str1, "backspace\\'and\\\"quote", NULL) == 0, "append");
+  check("'backspace\\'\"'\"'and\\\"quote'");
+
+  dynstr_free(&str1);
+
+  return exit_status();
+}
+
diff --git a/unittest/strings/CMakeLists.txt b/unittest/strings/CMakeLists.txt
index 10791edfb61..245747538c9 100644
--- a/unittest/strings/CMakeLists.txt
+++ b/unittest/strings/CMakeLists.txt
@@ -1,3 +1,3 @@
 
-MY_ADD_TESTS(strings LINK_LIBRARIES strings)
+MY_ADD_TESTS(strings LINK_LIBRARIES strings mysys)