amstream/tests: Add tests for IMediaStreamFilter::EnumPins().

dlls/amstream/tests/amstream.c

@@ -96,6 +96,13 @@ static void release_directdraw(void)
     IDirectDraw7_Release(pdd7);
 }
 
+static ULONG get_refcount(void *iface)
+{
+    IUnknown *unknown = iface;
+    IUnknown_AddRef(unknown);
+    return IUnknown_Release(unknown);
+}
+
 #define check_interface(a, b, c) check_interface_(__LINE__, a, b, c)
 static void check_interface_(unsigned int line, void *iface_ptr, REFIID iid, BOOL supported)
 {
@@ -615,6 +622,142 @@ static void test_media_streams(void)
     IAMMultiMediaStream_Release(pams);
 }
 
+static void test_enum_pins(void)
+{
+    IAMMultiMediaStream *mmstream = create_ammultimediastream();
+    IMediaStreamFilter *filter;
+    IEnumPins *enum1, *enum2;
+    IMediaStream *stream;
+    IPin *pins[3], *pin;
+    ULONG ref, count;
+    HRESULT hr;
+
+    /* FIXME: This call should not be necessary. */
+    hr = IAMMultiMediaStream_Initialize(mmstream, STREAMTYPE_READ, 0, NULL);
+    ok(hr == S_OK, "Got hr %#x.\n", hr);
+
+    hr = IAMMultiMediaStream_GetFilter(mmstream, &filter);
+    ok(hr == S_OK, "Got hr %#x.\n", hr);
+
+    ref = get_refcount(filter);
+    ok(ref == 3, "Got unexpected refcount %d.\n", ref);
+
+    hr = IMediaStreamFilter_EnumPins(filter, NULL);
+    ok(hr == E_POINTER, "Got hr %#x.\n", hr);
+
+    hr = IMediaStreamFilter_EnumPins(filter, &enum1);
+    ok(hr == S_OK, "Got hr %#x.\n", hr);
+    ref = get_refcount(filter);
+    todo_wine ok(ref == 3, "Got unexpected refcount %d.\n", ref);
+    ref = get_refcount(enum1);
+    ok(ref == 1, "Got unexpected refcount %d.\n", ref);
+
+    hr = IEnumPins_Next(enum1, 1, NULL, NULL);
+    ok(hr == E_POINTER, "Got hr %#x.\n", hr);
+
+    hr = IEnumPins_Next(enum1, 1, pins, NULL);
+    ok(hr == S_FALSE, "Got hr %#x.\n", hr);
+
+    hr = IEnumPins_Reset(enum1);
+    ok(hr == S_OK, "Got hr %#x.\n", hr);
+
+    hr = IEnumPins_Skip(enum1, 0);
+    todo_wine ok(hr == S_FALSE, "Got hr %#x.\n", hr);
+
+    hr = IEnumPins_Skip(enum1, 1);
+    ok(hr == S_FALSE, "Got hr %#x.\n", hr);
+
+    hr = IAMMultiMediaStream_AddMediaStream(mmstream, NULL, &MSPID_PrimaryVideo, 0, &stream);
+    ok(hr == S_OK, "Got hr %#x.\n", hr);
+    hr = IMediaStream_QueryInterface(stream, &IID_IPin, (void **)&pin);
+    ok(hr == S_OK, "Got hr %#x.\n", hr);
+
+    /* Reset() isn't enough; we have to call EnumPins() again to see the updated
+     * pin count. */
+    hr = IEnumPins_Reset(enum1);
+    ok(hr == S_OK, "Got hr %#x.\n", hr);
+
+    hr = IEnumPins_Next(enum1, 1, pins, NULL);
+    todo_wine ok(hr == S_FALSE, "Got hr %#x.\n", hr);
+
+    IEnumPins_Release(enum1);
+
+    hr = IMediaStreamFilter_EnumPins(filter, &enum1);
+    ok(hr == S_OK, "Got hr %#x.\n", hr);
+
+    ref = get_refcount(filter);
+    ok(ref == 4, "Got unexpected refcount %d.\n", ref);
+    ref = get_refcount(enum1);
+    ok(ref == 1, "Got unexpected refcount %d.\n", ref);
+    ref = get_refcount(pin);
+    todo_wine ok(ref == 4, "Got unexpected refcount %d.\n", ref);
+
+    hr = IEnumPins_Next(enum1, 1, pins, NULL);
+    ok(hr == S_OK, "Got hr %#x.\n", hr);
+    ok(pins[0] == pin, "Expected pin %p, got %p.\n", pin, pins[0]);
+    ref = get_refcount(filter);
+    ok(ref == 4, "Got unexpected refcount %d.\n", ref);
+    ref = get_refcount(enum1);
+    ok(ref == 1, "Got unexpected refcount %d.\n", ref);
+    ref = get_refcount(pin);
+    todo_wine ok(ref == 5, "Got unexpected refcount %d.\n", ref);
+    IPin_Release(pins[0]);
+
+    hr = IEnumPins_Next(enum1, 1, pins, NULL);
+    ok(hr == S_FALSE, "Got hr %#x.\n", hr);
+
+    hr = IEnumPins_Reset(enum1);
+    ok(hr == S_OK, "Got hr %#x.\n", hr);
+
+    hr = IEnumPins_Next(enum1, 1, pins, &count);
+    ok(hr == S_OK, "Got hr %#x.\n", hr);
+    ok(count == 1, "Got count %u.\n", count);
+    ok(pins[0] == pin, "Expected pin %p, got %p.\n", pin, pins[0]);
+    IPin_Release(pins[0]);
+
+    hr = IEnumPins_Reset(enum1);
+    ok(hr == S_OK, "Got hr %#x.\n", hr);
+
+    hr = IEnumPins_Next(enum1, 2, pins, NULL);
+    todo_wine ok(hr == E_POINTER, "Got hr %#x.\n", hr);
+
+    hr = IEnumPins_Next(enum1, 2, pins, &count);
+    ok(hr == S_FALSE, "Got hr %#x.\n", hr);
+    ok(count == 1, "Got count %u.\n", count);
+    ok(pins[0] == pin, "Expected pin %p, got %p.\n", pin, pins[0]);
+    IPin_Release(pins[0]);
+
+    hr = IEnumPins_Reset(enum1);
+    ok(hr == S_OK, "Got hr %#x.\n", hr);
+
+    hr = IEnumPins_Clone(enum1, &enum2);
+    ok(hr == S_OK, "Got hr %#x.\n", hr);
+
+    hr = IEnumPins_Skip(enum1, 0);
+    ok(hr == S_OK, "Got hr %#x.\n", hr);
+
+    hr = IEnumPins_Skip(enum1, 1);
+    todo_wine ok(hr == S_FALSE, "Got hr %#x.\n", hr);
+
+    hr = IEnumPins_Next(enum1, 1, pins, NULL);
+    ok(hr == S_FALSE, "Got hr %#x.\n", hr);
+
+    hr = IEnumPins_Next(enum2, 1, pins, NULL);
+    ok(hr == S_OK, "Got hr %#x.\n", hr);
+    ok(pins[0] == pin, "Expected pin %p, got %p.\n", pin, pins[0]);
+    IPin_Release(pins[0]);
+
+    IEnumPins_Release(enum2);
+    IEnumPins_Release(enum1);
+
+    IMediaStreamFilter_Release(filter);
+    ref = IAMMultiMediaStream_Release(mmstream);
+    ok(!ref, "Got outstanding refcount %d.\n", ref);
+    IMediaStream_Release(stream);
+    ref = IPin_Release(pin);
+    todo_wine ok(!ref, "Got outstanding refcount %d.\n", ref);
+}
+
 static void test_IDirectDrawStreamSample(void)
 {
     DDSURFACEDESC desc = { sizeof(desc) };
@@ -987,6 +1130,7 @@ START_TEST(amstream)
 
     test_interfaces();
     test_media_streams();
+    test_enum_pins();
     test_IDirectDrawStreamSample();
 
     file = CreateFileW(filenameW, 0, 0, NULL, OPEN_EXISTING, 0, NULL);