ddraw/tests: Actually test some return values (PVS-Studio).

dlls/ddraw/tests/ddraw2.c

@@ -972,6 +972,7 @@ static void test_depth_blit(void)
     memset(&ddsd_existing, 0, sizeof(ddsd_existing));
     ddsd_existing.dwSize = sizeof(ddsd_existing);
     hr = IDirectDrawSurface_GetSurfaceDesc(ds1, &ddsd_existing);
+    ok(SUCCEEDED(hr), "Failed to get surface desc, hr %#x.\n", hr);
     ddsd_new.dwFlags = DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT | DDSD_PIXELFORMAT;
     ddsd_new.ddsCaps.dwCaps = DDSCAPS_ZBUFFER;
     ddsd_new.dwWidth = ddsd_existing.dwWidth;
@@ -3733,6 +3734,7 @@ static void test_lighting_interface_versions(void)
         ok(SUCCEEDED(hr), "Failed to begin scene, hr %#x.\n", hr);
         hr = IDirect3DDevice2_DrawPrimitive(device, D3DPT_TRIANGLESTRIP,
                 tests[i].vertextype, tests[i].data, 4, tests[i].draw_flags | D3DDP_WAIT);
+        ok(SUCCEEDED(hr), "Failed to draw, hr %#x.\n", hr);
         hr = IDirect3DDevice2_EndScene(device);
         ok(SUCCEEDED(hr), "Failed to end scene, hr %#x.\n", hr);
 

dlls/ddraw/tests/ddraw4.c

@@ -1180,6 +1180,7 @@ static void test_depth_blit(void)
     memset(&ddsd_existing, 0, sizeof(ddsd_existing));
     ddsd_existing.dwSize = sizeof(ddsd_existing);
     hr = IDirectDrawSurface4_GetSurfaceDesc(ds1, &ddsd_existing);
+    ok(SUCCEEDED(hr), "Failed to get surface desc, hr %#x.\n", hr);
     ddsd_new.dwFlags = DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT | DDSD_PIXELFORMAT;
     ddsd_new.ddsCaps.dwCaps = DDSCAPS_ZBUFFER;
     ddsd_new.dwWidth = ddsd_existing.dwWidth;
@@ -4090,6 +4091,7 @@ static void test_lighting_interface_versions(void)
         ok(SUCCEEDED(hr), "Failed to begin scene, hr %#x.\n", hr);
         hr = IDirect3DDevice2_DrawPrimitive(device, D3DPT_TRIANGLESTRIP,
                 tests[i].vertextype, tests[i].data, 4, tests[i].draw_flags | D3DDP_WAIT);
+        ok(SUCCEEDED(hr), "Failed to draw, hr %#x.\n", hr);
         hr = IDirect3DDevice3_EndScene(device);
         ok(SUCCEEDED(hr), "Failed to end scene, hr %#x.\n", hr);
 

dlls/ddraw/tests/ddraw7.c

@@ -1090,6 +1090,7 @@ static void test_depth_blit(void)
     memset(&ddsd_existing, 0, sizeof(ddsd_existing));
     ddsd_existing.dwSize = sizeof(ddsd_existing);
     hr = IDirectDrawSurface7_GetSurfaceDesc(ds1, &ddsd_existing);
+    ok(SUCCEEDED(hr), "Failed to get surface desc, hr %#x.\n", hr);
     ddsd_new.dwFlags = DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT | DDSD_PIXELFORMAT;
     ddsd_new.ddsCaps.dwCaps = DDSCAPS_ZBUFFER;
     ddsd_new.dwWidth = ddsd_existing.dwWidth;
@@ -3854,6 +3855,7 @@ static void test_lighting_interface_versions(void)
         ok(SUCCEEDED(hr), "Failed to begin scene, hr %#x.\n", hr);
         hr = IDirect3DDevice7_DrawPrimitive(device, D3DPT_TRIANGLESTRIP,
                 tests[i].vertextype, tests[i].data, 4, tests[i].draw_flags | D3DDP_WAIT);
+        ok(SUCCEEDED(hr), "Failed to draw, hr %#x.\n", hr);
         hr = IDirect3DDevice7_EndScene(device);
         ok(SUCCEEDED(hr), "Failed to end scene, hr %#x.\n", hr);