[jgardou] 63678: [NTDLL_APITEST] - Add a test showing that memory content is still available after changing protection to PAGE_NOACCESS

Author: jgardou
Date: Mon Jun 30 19:50:28 2014
New Revision: 63678

URL: http://svn.reactos.org/svn/reactos?rev=63678&view=rev
Log:
[NTDLL_APITEST]
 - Add a test showing that memory content is still available after changing protection to
PAGE_NOACCESS

Modified:
    trunk/rostests/apitests/ntdll/NtProtectVirtualMemory.c

Modified: trunk/rostests/apitests/ntdll/NtProtectVirtualMemory.c
URL:
http://svn.reactos.org/svn/reactos/trunk/rostests/apitests/ntdll/NtProtectV…
==============================================================================
--- trunk/rostests/apitests/ntdll/NtProtectVirtualMemory.c	[iso-8859-1] (original)
+++ trunk/rostests/apitests/ntdll/NtProtectVirtualMemory.c	[iso-8859-1] Mon Jun 30
19:50:28 2014
@@ -89,6 +89,27 @@
     {
         ok(*allocationStart == 0, "Test should not go as far as this.\n");
     } EndSeh(STATUS_ACCESS_VIOLATION);
+
+    /* Set it as readable again */
+    status = NtProtectVirtualMemory(NtCurrentProcess(),
+        (void**)&allocationStart,
+        &allocationSize,
+        PAGE_READONLY,
+        &oldProtection);
+    ok(NT_SUCCESS(status), "NtProtectVirtualMemory failed.\n");
+    ok(oldProtection == PAGE_NOACCESS, "Expected PAGE_READONLY, got %08lx.\n",
oldProtection);
+
+    /* Try writing it */
+    StartSeh()
+    {
+        *allocationStart = 0xAA;
+    } EndSeh(STATUS_ACCESS_VIOLATION);
+
+    /* Try reading it */
+    StartSeh()
+    {
+        ok(*allocationStart == 0xFF, "Memory content was not preserved.\n");
+    } EndSeh(STATUS_SUCCESS);
     
     /* Free memory */
     status = NtFreeVirtualMemory(NtCurrentProcess(),
@@ -96,4 +117,4 @@
         &allocationSize,
         MEM_RELEASE);
     ok(NT_SUCCESS(status), "Failed freeing memory.\n");
-}
+}