1 files changed, 146 insertions, 0 deletions
diff --git a/src/pal/tests/palsuite/filemapping_memmgt/LockFile/test6/test6.cpp b/src/pal/tests/palsuite/filemapping_memmgt/LockFile/test6/test6.cpp
new file mode 100644
index 0000000000..ba01b9710a
--- /dev/null
+++ b/src/pal/tests/palsuite/filemapping_memmgt/LockFile/test6/test6.cpp
@@ -0,0 +1,146 @@
+// 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: test6.c
+**
+** Purpose: 
+** Append to a file which is locked until the end of the file, and
+** append to a file which is locked past the end of the file.  (The first
+** should succeed, while the second should fail)
+**
+**
+**============================================================*/
+
+#include <palsuite.h>
+#include "../LockFile.h"
+
+#define HELPER "helper"
+#define FILENAME "testfile.txt"
+
+/* This test checks that you can append to a file which is locked from Start
+   to EOF.
+*/
+void Test1()
+{
+    HANDLE TheFile = NULL;
+    DWORD FileStart = 0;
+    DWORD FileEnd = 0;
+    int result;
+    char* WriteBuffer = "12345678901234567890123456"; 
+      
+    /* Call the helper function to Create a file, write 'WriteBuffer' to
+       the file, and lock the file.
+    */
+    
+    FileEnd = strlen(WriteBuffer);
+    TheFile = CreateAndLockFile(TheFile,FILENAME, WriteBuffer, 
+                                FileStart, FileEnd);
+    
+    
+    /*
+      Launch another proccess which will attempt to append to the 
+      end of the file.  Note: This returns -1 if the setup failed in some way.
+    */
+
+    result = RunHelper(HELPER);
+
+    if(result == -1)
+    {
+        Fail("ERROR: The Helper program failed in setting up the "
+             "test, so it could never be run.");
+    }
+    else if(result == 0)
+    {
+        Fail("ERROR: Failed to append to the file which was Locked from "
+             "start until EOF.  Should have been able to append to this "
+             "file still.  GetLastError() is %d.",GetLastError());
+    }
+
+    if(UnlockFile(TheFile, FileStart, 0, FileEnd, 0) == 0)
+    {
+        Fail("ERROR: UnlockFile failed.  GetLastError returns %d.",
+             GetLastError());
+    }
+    
+    if(CloseHandle(TheFile) == 0)
+    {
+        Fail("ERROR: CloseHandle failed to close the file. "
+             "GetLastError() returned %d.",GetLastError());
+    }
+
+}
+
+/* This test checks that you can't append to a file which is locked beyond 
+   EOF.
+*/
+void Test2()
+{
+    HANDLE TheFile = NULL;
+    DWORD FileStart = 0;
+    DWORD FileEnd = 0;
+    int result;
+    char* WriteBuffer = "12345678901234567890123456"; 
+    
+    /* Call the helper function to Create a file, write 'WriteBuffer' to
+       the file, and lock the file.
+    */
+    
+    FileEnd = strlen(WriteBuffer);
+    TheFile = CreateAndLockFile(TheFile,FILENAME, WriteBuffer, 
+                                FileStart, FileEnd+20);
+    
+    
+    /*
+      Launch another proccess which will attempt to append to the 
+      end of the file.
+    */
+
+    result = RunHelper(HELPER);
+
+    if(result == -1)
+    {
+        Fail("ERROR: The Helper program failed in setting up the "
+             "test, so it could never be run.");
+    }
+    else if(result > 0)
+    {
+        Fail("ERROR: The Helper program successfully appended to the "
+             "end of the file, even though it was locked beyond EOF.  This "
+             "should have failed.");
+    }
+
+    if(UnlockFile(TheFile, FileStart, 0, FileEnd+20, 0) == 0)
+    {
+        Fail("ERROR: UnlockFile failed.  GetLastError returns %d.",
+             GetLastError());
+    }
+    
+    if(CloseHandle(TheFile) == 0)
+    {
+        Fail("ERROR: CloseHandle failed to close the file. "
+             "GetLastError() returned %d.",GetLastError());
+    }
+
+}
+
+
+int __cdecl main(int argc, char *argv[])
+{
+    
+    if(0 != (PAL_Initialize(argc, argv)))
+    {
+        return FAIL;
+    }
+    
+    /* Test a file which is locked until EOF to see if you can append */
+    Test1();
+
+    /* Test a file which is locked past EOF to ensure you can't append */
+    Test2();
+    
+    PAL_Terminate();
+    return PASS;
+}