public void Immutable_When_CreatingFromBuilder_TheResultIsCached()
{
var builder = new MyImmutableEntity.Builder
{
MyField1 = 42
};
var r1 = builder.ToImmutable();
var r2 = builder.ToImmutable();
r1.Should().NotBeNull();
r1.MyField1.Should().Be(42);
r1.Should().BeSameAs(r2);
}
public void Immutable_When_CreatingABuilderFromExisting_And_NoChanges_Then_ReferenceIsSame()
{
MyImmutableEntity original = new MyImmutableEntity.Builder
{
MyField1 = 42
};
var builder = new MyImmutableEntity.Builder(original);
var newInstance = builder.ToImmutable();
newInstance.Should().BeSameAs(original);
}