1 files changed, 68 insertions, 0 deletions
diff --git a/src/pal/tests/palsuite/locale_info/MultiByteToWideChar/test2/test2.cpp b/src/pal/tests/palsuite/locale_info/MultiByteToWideChar/test2/test2.cpp
new file mode 100644
index 0000000000..1370dba894
--- /dev/null
+++ b/src/pal/tests/palsuite/locale_info/MultiByteToWideChar/test2/test2.cpp
@@ -0,0 +1,68 @@
+// 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: test2.c
+**
+** Purpose: Tests that MultiByteToWideChar respects the length of the wide 
+**          character string.
+
+**
+**==========================================================================*/
+
+#include <palsuite.h>
+
+/*
+ * For now, it is assumed that MultiByteToWideChar will only be used in the PAL
+ * with CP_ACP, and that dwFlags will be 0.
+ */
+
+int __cdecl main(int argc, char *argv[])
+{    
+    char mbStr[128];
+    WCHAR wideStr[128];
+    int ret;
+    int i;
+
+    if (PAL_Initialize(argc, argv))
+    {
+        return FAIL;
+    }
+
+    for (i=0; i<128; i++)
+    {
+        mbStr[i] = 'a';
+        wideStr[i] = 0;
+    }
+
+    mbStr[127] = 0;
+
+
+    ret = MultiByteToWideChar(CP_ACP, 0, mbStr, 10, wideStr, 0);
+    if (ret != 10)
+    {
+        Fail("MultiByteToWideChar did not return correct string length!\n"
+            "Got %d, expected %d\n", ret, 10);
+    }
+
+    wideStr[10] = (WCHAR) 'b';
+
+    ret = MultiByteToWideChar(CP_ACP, 0, mbStr, 10, wideStr, 128);
+    if (ret != 10)
+    {
+        Fail("MultiByteToWideChar did not return correct string length!\n"
+            "Got %d, expected %d\n", ret, 10);
+    }
+
+    if (wideStr[10] != 'b')
+    {
+        Fail("WideCharToMultiByte overflowed the destination buffer!\n");
+    }
+
+    PAL_Terminate();
+
+    return PASS;
+}
+