public void TestAddingRemovingAccessors()
{
var ctx = new StandardEvaluationContext();
// reflective property accessor is the only one by default
var propertyAccessors = ctx.PropertyAccessors;
Assert.Single(propertyAccessors);
var spa = new StringyPropertyAccessor();
ctx.AddPropertyAccessor(spa);
Assert.Equal(2, ctx.PropertyAccessors.Count);
var copy = new List <IPropertyAccessor>(ctx.PropertyAccessors);
Assert.True(ctx.RemovePropertyAccessor(spa));
Assert.False(ctx.RemovePropertyAccessor(spa));
Assert.Single(ctx.PropertyAccessors);
ctx.PropertyAccessors = copy;
Assert.Equal(2, ctx.PropertyAccessors.Count);
}
