d3d9: Add a test for GetTexture with no texture set.

dlls/d3d9/device.c

@@ -990,11 +990,13 @@ static HRESULT  WINAPI  IDirect3DDevice9Impl_GetTexture(LPDIRECT3DDEVICE9EX ifac
 
     EnterCriticalSection(&d3d9_cs);
     rc = IWineD3DDevice_GetTexture(This->WineD3DDevice, Stage, &retTexture);
-    if (rc == D3D_OK && NULL != retTexture) {
+    if (SUCCEEDED(rc) && NULL != retTexture) {
         IWineD3DBaseTexture_GetParent(retTexture, (IUnknown **)ppTexture);
         IWineD3DBaseTexture_Release(retTexture);
-    }else{
-        FIXME("Call to get texture  (%d) failed (%p)\n", Stage, retTexture);
+    } else {
+        if(FAILED(rc)) {
+            WARN("Call to get texture  (%d) failed (%p)\n", Stage, retTexture);
+        }
         *ppTexture = NULL;
     }
     LeaveCriticalSection(&d3d9_cs);

dlls/d3d9/tests/texture.c

@@ -323,6 +323,17 @@ static void test_filter(IDirect3DDevice9 *device) {
     IDirect3D9_Release(d3d9);
 }
 
+static void test_gettexture(IDirect3DDevice9 *device) {
+    HRESULT hr;
+    IDirect3DBaseTexture9 *texture = (IDirect3DBaseTexture9 *) 0xdeadbeef;
+
+    hr = IDirect3DDevice9_SetTexture(device, 0, NULL);
+    ok(hr == D3D_OK, "IDirect3DDevice9_SetTexture failed, hr = 0x%08x\n", hr);
+    hr = IDirect3DDevice9_GetTexture(device, 0, &texture);
+    ok(hr == D3D_OK, "IDirect3DDevice9_GetTexture failed, hr = 0x%08x\n", hr);
+    ok(texture == NULL, "Texture returned is %p, expected NULL\n", texture);
+}
+
 START_TEST(texture)
 {
     D3DCAPS9 caps;
@@ -345,4 +356,5 @@ START_TEST(texture)
     test_cube_textures(device_ptr, caps.TextureCaps);
     test_mipmap_gen(device_ptr);
     test_filter(device_ptr);
+    test_gettexture(device_ptr);
 }