public void SomethingElseCalled_OnlyNoneReturned()
{
//Arrange
SandboxDirectiveBuilder builder = new SandboxDirectiveBuilder();
//Act
builder.AllowForms();
builder.AllowModals();
builder.AllowNone();
builder.AllowAny();
//Assert
string result = builder.Build();
Assert.Equal("'none'", result);
}