[PATCH v3 5/9] ntdll/tests: Add tests for FILE_DISPOSITION_ON_CLOSE

[Joel Holdsworth]

From: Joel Holdsworth

Signed-off-by: Joel Holdsworth 
---
 dlls/ntdll/tests/file.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/dlls/ntdll/tests/file.c b/dlls/ntdll/tests/file.c
index 813ef0a3cbf..06281f70a3d 100644
--- a/dlls/ntdll/tests/file.c
+++ b/dlls/ntdll/tests/file.c
@@ -3150,6 +3150,24 @@ static void test_file_disposition_information(void)
     fileDeleted = GetFileAttributesA( buffer ) == INVALID_FILE_ATTRIBUTES && GetLastError() == ERROR_FILE_NOT_FOUND;
     ok( fileDeleted, "File should have been deleted\n" );

+    /* can reset delete-on-close flag through FileDispositionInformationEx */
+    /* FileDispositionInformationEx is only supported on Windows 10 build 1809 and later */
+    GetTempFileNameA( tmp_path, "dis", 0, buffer );
+    handle = CreateFileA(buffer, GENERIC_WRITE | DELETE, 0, NULL, CREATE_ALWAYS, FILE_FLAG_DELETE_ON_CLOSE, 0);
+    ok( handle != INVALID_HANDLE_VALUE, "failed to create temp file\n" );
+    fdie.Flags = FILE_DISPOSITION_ON_CLOSE;
+    res = pNtSetInformationFile( handle, &io, &fdie, sizeof fdie, FileDispositionInformationEx );
+    ok( res == STATUS_INVALID_INFO_CLASS || res == STATUS_SUCCESS,
+        "unexpected FileDispositionInformationEx result (expected STATUS_SUCCESS or SSTATUS_INVALID_INFO_CLASS, got %lx)\n", res );
+    CloseHandle( handle );
+    if ( res == STATUS_SUCCESS )
+    {
+        fileDeleted = GetFileAttributesA( buffer ) == INVALID_FILE_ATTRIBUTES && GetLastError() == ERROR_FILE_NOT_FOUND;
+        todo_wine
+        ok( !fileDeleted, "File shouldn't have been deleted\n" );
+        DeleteFileA( buffer );
+    }
+
     /* DeleteFile fails for wrong sharing mode */
     GetTempFileNameA( tmp_path, "dis", 0, buffer );
     handle = CreateFileA(buffer, GENERIC_WRITE | DELETE, 0, NULL, CREATE_ALWAYS, 0, 0);