1 files changed, 55 insertions, 0 deletions
diff --git a/src/pal/tests/palsuite/c_runtime/_vsnprintf_s/test1/test1.cpp b/src/pal/tests/palsuite/c_runtime/_vsnprintf_s/test1/test1.cpp
new file mode 100644
index 0000000000..db70f5612b
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_vsnprintf_s/test1/test1.cpp
@@ -0,0 +1,55 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*=====================================================================
+**
+** Source:    test1.c
+**
+** Purpose:   Test #1 for the _vsnprintf function.
+**
+**
+**===================================================================*/
+
+#include <palsuite.h>
+#include "../_vsnprintf_s.h"
+
+/*
+ * Notes: memcmp is used, as is strlen.
+ */
+
+int __cdecl main(int argc, char *argv[])
+{
+    char checkstr[] = "hello world";
+    char buf[256] = { 0 };
+    int ret;
+    
+    if (PAL_Initialize(argc, argv) != 0)
+    {
+        return(FAIL);
+    }
+
+    Testvsnprintf(buf, 256, "hello world");
+
+    if (memcmp(checkstr, buf, strlen(checkstr)+1) != 0)
+    {
+        Fail("ERROR: expected \"%s\" (up to %d chars), got \"%s\"\n",
+             checkstr, 256, buf);
+    }
+
+    Testvsnprintf(buf, 256, "xxxxxxxxxxxxxxxxx");
+
+    ret = Testvsnprintf(buf, 8, "hello world");
+
+    if (ret >= 0)
+    {
+        Fail("ERROR: expected negative return value, got %d", ret);
+    }
+    if (memcmp(checkstr, buf, 7) != 0 || buf[7] != 0)
+    {
+        Fail("ERROR: expected %s (up to %d chars), got %s\n", checkstr, 8, buf);
+    }
+
+    PAL_Terminate();
+    return PASS;
+}