1 files changed, 87 insertions, 0 deletions
diff --git a/src/pal/tests/palsuite/c_runtime/memcpy/test1/test1.c b/src/pal/tests/palsuite/c_runtime/memcpy/test1/test1.c
new file mode 100644
index 0000000000..9da98d6573
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+++ b/src/pal/tests/palsuite/c_runtime/memcpy/test1/test1.c
@@ -0,0 +1,87 @@
+// 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: Calls memcpy and verifies that the buffer was copied correctly.
+**
+**
+**==========================================================================*/
+
+#include <palsuite.h>
+
+int __cdecl main(int argc, char **argv)
+{
+    char testA[20];
+    char testB[20];
+    void *retVal;
+    long i;
+   
+    if (PAL_Initialize(argc, argv))
+    {
+        return FAIL;
+    }
+
+
+    memset(testA, 'a', 20);
+    memset(testB, 'b', 20);
+
+    retVal = (char *)memcpy(testB, testA, 0);
+    if (retVal != testB)
+    {
+        Fail("memcpy should return a pointer to the destination buffer, "
+             "but doesn't.\n");
+    }
+    for(i = 0; i<20; i++)
+    {
+        if (testB[i]!= 'b')
+        {
+            Fail("The destination buffer overflowed by memcpy.\n");
+        }
+    }
+
+    retVal = (char *)memcpy(testB+1, testA, 18);
+    if (retVal != testB+1)
+    {
+        Fail("memcpy should return a pointer to the destination buffer, "
+             "but doesn't.\n");
+    }
+
+    if (testB[0] != 'b' || testB[19] != 'b')
+    {
+        Fail("The destination buffer was written out of bounds by memcpy!\n");
+    }
+
+    for(i = 1; i<19; i++)
+    {
+        if (testB[i]!= 'a')
+        {
+            Fail("The destination buffer copied to by memcpy doesn't match "
+                 "the source buffer.\n");
+        }
+    }
+
+    PAL_Terminate();
+
+    return PASS;
+}
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