d3d9/tests: Use a separate device for zenable_test().

dlls/d3d9/tests/visual.c

@@ -14333,7 +14333,7 @@ static void resz_test(void)
     IDirect3D9_Release(d3d);
 }
 
-static void zenable_test(IDirect3DDevice9 *device)
+static void zenable_test(void)
 {
     static const struct
     {
@@ -14347,12 +14347,26 @@ static void zenable_test(IDirect3DDevice9 *device)
         {{640.0f, 480.0f,  1.5f, 1.0f}, 0xff00ff00},
         {{640.0f,   0.0f,  1.5f, 1.0f}, 0xff00ff00},
     };
+    IDirect3DDevice9 *device;
+    IDirect3D9 *d3d;
     D3DCOLOR color;
+    ULONG refcount;
     D3DCAPS9 caps;
+    HWND window;
     HRESULT hr;
     UINT x, y;
     UINT i, j;
 
+    window = CreateWindowA("static", "d3d9_test", WS_OVERLAPPEDWINDOW | WS_VISIBLE,
+            0, 0, 640, 480, NULL, NULL, NULL, NULL);
+    d3d = Direct3DCreate9(D3D_SDK_VERSION);
+    ok(!!d3d, "Failed to create a D3D object.\n");
+    if (!(device = create_device(d3d, window, window, TRUE)))
+    {
+        skip("Failed to create a D3D device, skipping tests.\n");
+        goto done;
+    }
+
     hr = IDirect3DDevice9_SetRenderState(device, D3DRS_ZENABLE, D3DZB_FALSE);
     ok(SUCCEEDED(hr), "Failed to disable z-buffering, hr %#x.\n", hr);
     hr = IDirect3DDevice9_SetFVF(device, D3DFVF_XYZRHW | D3DFVF_DIFFUSE);
@@ -14462,6 +14476,12 @@ static void zenable_test(IDirect3DDevice9 *device)
         IDirect3DPixelShader9_Release(ps);
         IDirect3DVertexShader9_Release(vs);
     }
+
+    refcount = IDirect3DDevice9_Release(device);
+    ok(!refcount, "Device has %u references left.\n", refcount);
+done:
+    IDirect3D9_Release(d3d);
+    DestroyWindow(window);
 }
 
 static void fog_special_test(void)
@@ -15543,11 +15563,11 @@ START_TEST(visual)
     srgbwrite_format_test(device_ptr);
     update_surface_test(device_ptr);
     multisample_get_rtdata_test(device_ptr);
-    zenable_test(device_ptr);
 
     cleanup_device(device_ptr);
     device_ptr = NULL;
 
+    zenable_test();
     fog_special_test();
     volume_srgb_test();
     volume_dxt5_test();