/// <summary>
/// Regenerates the <see cref="RenderTree"/> and adds the changes to the
/// <paramref name="batchBuilder"/>.
/// </summary>
public void Render(RenderBatchBuilder batchBuilder)
{
// Swap the old and new tree builders
(_renderTreeBuilderCurrent, _renderTreeBuilderPrevious) = (_renderTreeBuilderPrevious, _renderTreeBuilderCurrent);
_renderTreeBuilderCurrent.Clear();
_component.BuildRenderTree(_renderTreeBuilderCurrent);
_diffComputer.ApplyNewRenderTreeVersion(
batchBuilder,
_componentId,
_renderTreeBuilderPrevious.GetFrames(),
_renderTreeBuilderCurrent.GetFrames());
}
public void ThrowsIfAssigningUnknownPropertiesToChildComponents()
{
// Arrange
var testObject = new object();
newTree.OpenComponent <FakeComponent>(0);
newTree.AddAttribute(1, "SomeUnknownProperty", 123);
newTree.CloseComponent();
// Act/Assert
var ex = Assert.Throws <InvalidOperationException>(() =>
{
diff.ApplyNewRenderTreeVersion(new RenderBatchBuilder(), 0, oldTree.GetFrames(), newTree.GetFrames());
});
Assert.Equal($"Component of type '{typeof(FakeComponent).FullName}' does not have a property matching the name 'SomeUnknownProperty'.", ex.Message);
}