1 files changed, 6 insertions, 0 deletions
diff --git a/src/pal/tests/palsuite/c_runtime/_vsnwprintf_s/test3/test3.cpp b/src/pal/tests/palsuite/c_runtime/_vsnwprintf_s/test3/test3.cpp
index 5e2bfa21a0..657a911b5c 100644
--- a/src/pal/tests/palsuite/c_runtime/_vsnwprintf_s/test3/test3.cpp
+++ b/src/pal/tests/palsuite/c_runtime/_vsnwprintf_s/test3/test3.cpp
@@ -34,6 +34,12 @@ int __cdecl main(int argc, char *argv[])
     DoStrTest(convert("foo %5.2S"), "bar", convert("foo    ba"));
     DoStrTest(convert("foo %-5S"), "bar", convert("foo bar  "));
     DoStrTest(convert("foo %05S"), "bar", convert("foo 00bar"));
+    DoStrTest(convert("foo %S"), NULL, convert("foo (null)"));
+    DoStrTest(convert("foo %hS"), NULL, convert("foo (null)"));
+    DoWStrTest(convert("foo %lS"), NULL, convert("foo (null)"));
+    DoWStrTest(convert("foo %wS"), NULL, convert("foo (null)"));
+    DoStrTest(convert("foo %LS"), NULL, convert("foo (null)"));
+    DoStrTest(convert("foo %I64S"), NULL, convert("foo (null)"));
 
     PAL_Terminate();
     return PASS;