mfplay/tests: Add a basic test for player creation.

configure

@@ -20739,6 +20739,7 @@ wine_fn_config_makefile dlls/mfmediaengine/tests enable_tests
 wine_fn_config_makefile dlls/mfplat enable_mfplat
 wine_fn_config_makefile dlls/mfplat/tests enable_tests
 wine_fn_config_makefile dlls/mfplay enable_mfplay
+wine_fn_config_makefile dlls/mfplay/tests enable_tests
 wine_fn_config_makefile dlls/mfreadwrite enable_mfreadwrite
 wine_fn_config_makefile dlls/mfreadwrite/tests enable_tests
 wine_fn_config_makefile dlls/mfuuid enable_mfuuid

configure.ac

@@ -3414,6 +3414,7 @@ WINE_CONFIG_MAKEFILE(dlls/mfmediaengine/tests)
 WINE_CONFIG_MAKEFILE(dlls/mfplat)
 WINE_CONFIG_MAKEFILE(dlls/mfplat/tests)
 WINE_CONFIG_MAKEFILE(dlls/mfplay)
+WINE_CONFIG_MAKEFILE(dlls/mfplay/tests)
 WINE_CONFIG_MAKEFILE(dlls/mfreadwrite)
 WINE_CONFIG_MAKEFILE(dlls/mfreadwrite/tests)
 WINE_CONFIG_MAKEFILE(dlls/mfuuid)

dlls/mfplay/Makefile.in

 MODULE    = mfplay.dll
+IMPORTLIB = mfplay
 IMPORTS   = uuid mfuuid
 
 EXTRADLLFLAGS = -mno-cygwin -Wb,--prefer-native

dlls/mfplay/tests/Makefile.in

+TESTDLL   = mfplay.dll
+IMPORTS   = mfplay
+
+C_SRCS = \
+	mfplay.c

dlls/mfplay/tests/mfplay.c

+/*
+ * Copyright 2021 Nikolay Sivov for CodeWeavers
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include <stdarg.h>
+
+#define COBJMACROS
+
+#include "windef.h"
+#include "winbase.h"
+#include "mfplay.h"
+
+#include "wine/test.h"
+
+static void test_create_player(void)
+{
+    IMFPMediaPlayer *player;
+    HRESULT hr;
+
+    hr = MFPCreateMediaPlayer(NULL, FALSE, 0, NULL, NULL, &player);
+    ok(hr == S_OK, "Unexpected hr %#x.\n", hr);
+    IMFPMediaPlayer_Release(player);
+}
+
+START_TEST(mfplay)
+{
+    test_create_player();
+}