[reactos] 01/01: [KMTESTS:EX] Use stricter checks for the UUID returned from ExUuidCreate.

[Thomas Faber]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=1481df94abad5cc75a7f5…

commit 1481df94abad5cc75a7f5bdcd57273700b7c7dd2
Author:     Thomas Faber <thomas.faber(a)reactos.org>
AuthorDate: Sat Jun 27 09:27:33 2020 +0200
Commit:     Thomas Faber <thomas.faber(a)reactos.org>
CommitDate: Sat Jun 27 10:13:51 2020 +0200

    [KMTESTS:EX] Use stricter checks for the UUID returned from ExUuidCreate.
    
    * Check the entire version field
    * Check the variant field
    * Accept RPC_NT_UUID_LOCAL_ONLY, which is sometimes returned by Windows
    * Repeat the test to show that these things happen every time
    
    Based on a patch by Serge Gautherie.
---
 modules/rostests/kmtests/ntos_ex/ExUuid.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/modules/rostests/kmtests/ntos_ex/ExUuid.c
b/modules/rostests/kmtests/ntos_ex/ExUuid.c
index 2fb0bba8dc8..82bb27b6089 100644
--- a/modules/rostests/kmtests/ntos_ex/ExUuid.c
+++ b/modules/rostests/kmtests/ntos_ex/ExUuid.c
@@ -14,8 +14,14 @@ START_TEST(ExUuid)
 {
     UUID Uuid;
     NTSTATUS Status;
+    ULONG i;
 
-    Status = ExUuidCreate(&Uuid);
-    ok(Status == STATUS_SUCCESS, "ExUuidCreate returned unexpected status:
%lx\n", Status);
-    ok((Uuid.Data3 & 0x1000) == 0x1000, "Invalid UUID version: %x\n",
(Uuid.Data3 & 0xF000));
+    for (i = 0; i < 1000; i++)
+    {
+        Status = ExUuidCreate(&Uuid);
+        ok(Status == STATUS_SUCCESS || Status == RPC_NT_UUID_LOCAL_ONLY,
+           "ExUuidCreate returned unexpected status: 0x%lx\n", Status);
+        ok((Uuid.Data3 & 0xF000) == 0x1000, "Invalid UUID version: 0x%x\n",
(Uuid.Data3 & 0xF000));
+        ok((Uuid.Data4[0] & 0xC0) == 0x80, "Invalid UUID variant: 0x%x\n",
(Uuid.Data4[0] & 0xF0));
+    }
 }