qedit/tests: Abort on missing qedit.dll.

dlls/qedit/tests/mediadet.c

@@ -647,6 +647,9 @@ static void test_COM_sg_enumpins(void)
 
 START_TEST(mediadet)
 {
+    IMediaDet *detector;
+    HRESULT hr;
+
     if (!init_tests())
     {
         skip("Couldn't initialize tests!\n");
@@ -655,6 +658,15 @@ START_TEST(mediadet)
 
     CoInitialize(NULL);
 
+    if (FAILED(hr = CoCreateInstance(&CLSID_MediaDet, NULL, CLSCTX_INPROC_SERVER,
+            &IID_IMediaDet, (void **)&detector)))
+    {
+        /* qedit.dll does not exist on 2003. */
+        win_skip("Failed to create media detector object, hr %#x.\n", hr);
+        return;
+    }
+    IMediaDet_Release(detector);
+
     test_aggregation();
     test_mediadet();
     test_samplegrabber();

dlls/qedit/tests/samplegrabber.c

@@ -451,8 +451,20 @@ static void test_aggregation(void)
 
 START_TEST(samplegrabber)
 {
+    IBaseFilter *filter;
+    HRESULT hr;
+
     CoInitialize(NULL);
 
+    if (FAILED(hr = CoCreateInstance(&CLSID_SampleGrabber, NULL, CLSCTX_INPROC_SERVER,
+            &IID_IBaseFilter, (void **)&filter)))
+    {
+        /* qedit.dll does not exist on 2003. */
+        win_skip("Failed to create sample grabber filter, hr %#x.\n", hr);
+        return;
+    }
+    IBaseFilter_Release(filter);
+
     test_interfaces();
     test_enum_pins();
     test_find_pin();

dlls/qedit/tests/timeline.c

@@ -246,8 +246,20 @@ static void test_timelineobj_interfaces(void)
 
 START_TEST(timeline)
 {
+    IAMTimeline *timeline;
+    HRESULT hr;
+
     CoInitialize(NULL);
 
+    if (FAILED(hr = CoCreateInstance(&CLSID_AMTimeline, NULL, CLSCTX_INPROC_SERVER,
+            &IID_IAMTimeline, (void **)&timeline)))
+    {
+        /* qedit.dll does not exist on 2003. */
+        win_skip("Failed to create timeline object, hr %#x.\n", hr);
+        return;
+    }
+    IAMTimeline_Release(timeline);
+
     test_aggregation();
     test_timeline();
     test_timelineobj_interfaces();