public void Immutable_When_CreatingFromBuilder_WithDefaultValue()
{
var entity = new MyImmutableEntity.Builder().ToImmutable();
entity.Should().NotBeNull();
entity.MyField1.Should().Be(4);
}
public void Immutable_When_Using_OptionNone()
{
MyImmutableEntity.Builder builder = MyImmutableEntity.None;
Option <MyImmutableEntity> option = builder;
option.MatchNone().Should().BeTrue();
}
public void Immutable_When_CreatingFromBuilder_And_ImplicitlyCasted()
{
MyImmutableEntity entity = new MyImmutableEntity.Builder
{
MyField1 = 42
};
entity.Should().NotBeNull();
entity.MyField1.Should().Be(42);
}
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);
}
public void Immutable_When_CreatingABuilderFromExisting()
{
MyImmutableEntity original = new MyImmutableEntity.Builder
{
MyField1 = 42
};
MyImmutableEntity newInstance = original
.WithMyField1(43);
original.MyField1.Should().Be(42);
newInstance.MyField1.Should().Be(43);
}
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);
}
