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diff --git a/src/pal/tests/palsuite/file_io/ReadFile/test4/readfile.cpp b/src/pal/tests/palsuite/file_io/ReadFile/test4/readfile.cpp
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+// 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: ReadFile.c (test 4)
+**
+** Purpose: Tests the PAL implementation of the ReadFile function.
+** Creates a file and writes a small string to it, attempt
+** to read many more characters that exist. The returned
+** number of chars should be the amount written originally
+** not the number requested.
+**
+**
+**===================================================================*/
+#include <palsuite.h>
+
+int __cdecl main(int argc, char *argv[])
+{
+ HANDLE hFile = NULL;
+ DWORD dwBytesWritten;
+ BOOL bRc = FALSE;
+ char szBuffer[256];
+ DWORD dwBytesRead = 0;
+ int szRequestSize = 256;
+ char testFile[] = "testfile.tmp";
+ char testString[] = "people stop and stare";
+ DWORD res = 0;
+
+ /* Initialize the PAL.
+ */
+ if (0 != PAL_Initialize(argc,argv))
+ {
+ return FAIL;
+ }
+
+ /* Initialize the buffer.
+ */
+ memset(szBuffer, 0, 256);
+
+ /* Create a file to test with.
+ */
+ hFile = CreateFile(testFile,
+ GENERIC_WRITE|GENERIC_READ,
+ FILE_SHARE_WRITE|FILE_SHARE_READ,
+ NULL,
+ CREATE_ALWAYS,
+ FILE_ATTRIBUTE_NORMAL,
+ NULL);
+
+ if(hFile == INVALID_HANDLE_VALUE)
+ {
+ Fail("ERROR:%u: Unable to create file \"%s\".\n",
+ GetLastError(),
+ testFile);
+ }
+
+ /* Write to the File handle.
+ */
+ bRc = WriteFile(hFile,
+ testString,
+ strlen(testString),
+ &dwBytesWritten,
+ NULL);
+
+ if (bRc == FALSE)
+ {
+ Trace("ERROR:%u: Unable to write to file handle "
+ "hFile=0x%lx\n",
+ GetLastError(),
+ hFile);
+ if (!CloseHandle(hFile))
+ {
+ Trace("ERROR:%u%: Unable to close handle 0x%lx.\n",
+ GetLastError(),
+ hFile);
+ }
+ Fail("");
+ }
+
+ /* Set the file pointer to beginning of file.
+ */
+ res = SetFilePointer(hFile, (LONG)NULL, NULL, FILE_BEGIN);
+
+ if( (res == INVALID_SET_FILE_POINTER) &&
+ (GetLastError() != NO_ERROR))
+ {
+ Trace("ERROR:%u: Unable to set file pointer to the beginning of file.",
+ GetLastError());
+
+ if (!CloseHandle(hFile))
+ {
+ Trace("ERROR:%u%: Unable to close handle 0x%lx.\n",
+ GetLastError(),
+ hFile);
+ }
+ Fail("");
+ }
+
+
+ /* Attempt to read 256 characters from a file
+ * that does not contain that many.
+ */
+ bRc = ReadFile(hFile,
+ szBuffer,
+ szRequestSize,
+ &dwBytesRead,
+ NULL);
+
+ if (bRc == FALSE)
+ {
+ Trace("ERROR:%u: Unable to read from file handle 0x%lx.\n",
+ GetLastError(),
+ hFile);
+ if (!CloseHandle(hFile))
+ {
+ Trace("ERROR:%u%: Unable to close handle 0x%lx.\n",
+ GetLastError(),
+ hFile);
+ }
+ Fail("");
+ }
+
+ /* Confirm the number of bytes read with that requested.
+ */
+ if (dwBytesRead != strlen(testString))
+ {
+ Trace("ERROR: The number of bytes read \"%d\" is not equal to the "
+ "number originally written \"%d\" to the file.\n",
+ dwBytesRead,
+ strlen(testString));
+ if (!CloseHandle(hFile))
+ {
+ Trace("ERROR:%u%: Unable to close handle 0x%lx.\n",
+ GetLastError(),
+ hFile);
+ }
+ Fail("");
+ }
+
+ /* Terminate the PAL.
+ */
+ PAL_Terminate();
+ return PASS;
+}
+