dmcompos/tests: Add COM tests for IDirectMusicComposer.

configure

@@ -16665,6 +16665,7 @@ wine_fn_config_dll display.drv16 enable_win16
 wine_fn_config_dll dmband enable_dmband clean
 wine_fn_config_test dlls/dmband/tests dmband_test
 wine_fn_config_dll dmcompos enable_dmcompos clean
+wine_fn_config_test dlls/dmcompos/tests dmcompos_test
 wine_fn_config_dll dmime enable_dmime clean
 wine_fn_config_test dlls/dmime/tests dmime_test
 wine_fn_config_dll dmloader enable_dmloader clean

configure.ac

@@ -2789,6 +2789,7 @@ WINE_CONFIG_DLL(display.drv16,enable_win16)
 WINE_CONFIG_DLL(dmband,,[clean])
 WINE_CONFIG_TEST(dlls/dmband/tests)
 WINE_CONFIG_DLL(dmcompos,,[clean])
+WINE_CONFIG_TEST(dlls/dmcompos/tests)
 WINE_CONFIG_DLL(dmime,,[clean])
 WINE_CONFIG_TEST(dlls/dmime/tests)
 WINE_CONFIG_DLL(dmloader,,[clean])

dlls/dmcompos/tests/Makefile.in

+TESTDLL   = dmcompos.dll
+IMPORTS   = ole32
+
+C_SRCS = \
+	dmcompos.c

dlls/dmcompos/tests/dmcompos.c

+/*
+ * Copyright 2014 Michael Stefaniuc
+ *
+ * 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
+ */
+
+#define COBJMACROS
+
+#include <stdarg.h>
+#include <windef.h>
+#include <initguid.h>
+#include <wine/test.h>
+#include <dmusici.h>
+
+
+static BOOL missing_dmcompos(void)
+{
+    IDirectMusicComposer *dmc;
+    HRESULT hr = CoCreateInstance(&CLSID_DirectMusicComposer, NULL, CLSCTX_INPROC_SERVER,
+            &IID_IDirectMusicComposer, (void**)&dmc);
+
+    if (hr == S_OK && dmc)
+    {
+        IDirectMusicComposer_Release(dmc);
+        return FALSE;
+    }
+    return TRUE;
+}
+
+static void test_COM(void)
+{
+    IDirectMusicComposer *dmc = (IDirectMusicComposer*)0xdeadbeef;
+    IUnknown *unk;
+    ULONG refcount;
+    HRESULT hr;
+
+    /* COM aggregation */
+    hr = CoCreateInstance(&CLSID_DirectMusicComposer, (IUnknown*)&dmc, CLSCTX_INPROC_SERVER,
+            &IID_IUnknown, (void**)&dmc);
+    ok(hr == CLASS_E_NOAGGREGATION,
+            "DirectMusicComposer create failed: %08x, expected CLASS_E_NOAGGREGATION\n", hr);
+    ok(!dmc, "dmc = %p\n", dmc);
+
+    /* Invalid RIID */
+    hr = CoCreateInstance(&CLSID_DirectMusicComposer, NULL, CLSCTX_INPROC_SERVER,
+            &IID_IDirectMusicObject, (void**)&dmc);
+    ok(hr == E_NOINTERFACE,
+            "DirectMusicComposer create failed: %08x, expected E_NOINTERFACE\n", hr);
+
+    /* Same refcount for all DirectMusicComposer interfaces */
+    hr = CoCreateInstance(&CLSID_DirectMusicComposer, NULL, CLSCTX_INPROC_SERVER,
+            &IID_IDirectMusicComposer, (void**)&dmc);
+    ok(hr == S_OK, "DirectMusicComposer create failed: %08x, expected S_OK\n", hr);
+    refcount = IDirectMusicComposer_AddRef(dmc);
+    ok(refcount == 2, "refcount == %u, expected 2\n", refcount);
+
+    hr = IDirectMusicComposer_QueryInterface(dmc, &IID_IUnknown, (void**)&unk);
+    ok(hr == S_OK, "QueryInterface for IID_IUnknown failed: %08x\n", hr);
+    refcount = IUnknown_AddRef(unk);
+    ok(refcount == 4, "refcount == %u, expected 4\n", refcount);
+    refcount = IUnknown_Release(unk);
+
+    while (IDirectMusicComposer_Release(dmc));
+}
+
+START_TEST(dmcompos)
+{
+    CoInitialize(NULL);
+
+    if (missing_dmcompos())
+    {
+        skip("dmcompos not available\n");
+        CoUninitialize();
+        return;
+    }
+    test_COM();
+
+    CoUninitialize();
+}