02/03: [KMTESTS:CC] Extended previous test to show an overlap is enough

[Pierre Schweitzer]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=262e5bfef1fc853e2c3c7…

commit 262e5bfef1fc853e2c3c71cbf046cff75fae415f
Author:     Pierre Schweitzer <pierre(a)reactos.org>
AuthorDate: Fri Aug 31 23:07:46 2018 +0200
Commit:     Pierre Schweitzer <pierre(a)reactos.org>
CommitDate: Fri Aug 31 23:07:46 2018 +0200

    [KMTESTS:CC] Extended previous test to show an overlap is enough
---
 modules/rostests/kmtests/ntos_cc/CcMapData_drv.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/modules/rostests/kmtests/ntos_cc/CcMapData_drv.c
b/modules/rostests/kmtests/ntos_cc/CcMapData_drv.c
index 7cf442e628..415eb148a3 100644
--- a/modules/rostests/kmtests/ntos_cc/CcMapData_drv.c
+++ b/modules/rostests/kmtests/ntos_cc/CcMapData_drv.c
@@ -24,6 +24,7 @@ typedef struct _TEST_CONTEXT
 {
     PVOID Bcb;
     PVOID Buffer;
+    ULONG Length;
 } TEST_CONTEXT, *PTEST_CONTEXT;
 
 static BOOLEAN TestMap = FALSE;
@@ -162,12 +163,13 @@ MapInAnotherThread(IN PVOID Context)
     ok(TestContext != NULL, "Called in invalid context!\n");
     ok(TestContext->Bcb != NULL, "Called in invalid context!\n");
     ok(TestContext->Buffer != NULL, "Called in invalid context!\n");
+    ok(TestContext->Length != 0, "Called in invalid context!\n");
 
     Ret = FALSE;
     Offset.QuadPart = 0x1000;
     KmtStartSeh();
     TestMap = TRUE;
-    Ret = CcMapData(TestFileObject, &Offset, FileSizes.FileSize.QuadPart -
Offset.QuadPart, MAP_WAIT, &Bcb, (PVOID *)&Buffer);
+    Ret = CcMapData(TestFileObject, &Offset, TestContext->Length, MAP_WAIT,
&Bcb, (PVOID *)&Buffer);
     TestMap = FALSE;
     KmtEndSeh(STATUS_SUCCESS);
 
@@ -253,6 +255,11 @@ PerformTest(
                         {
                             PKTHREAD ThreadHandle;
 
+                            TestContext->Length = FileSizes.FileSize.QuadPart -
Offset.QuadPart;
+                            ThreadHandle = KmtStartThread(MapInAnotherThread,
TestContext);
+                            KmtFinishThread(ThreadHandle, NULL);
+
+                            TestContext->Length = FileSizes.FileSize.QuadPart - 2 *
Offset.QuadPart;
                             ThreadHandle = KmtStartThread(MapInAnotherThread,
TestContext);
                             KmtFinishThread(ThreadHandle, NULL);