public void Instance_WhenDefaultDelegateSupplied_ShouldReturnInstance()
{
var sut = new AmbientServiceWithDefault();
var instance = sut.Instance;
instance.Should().BeOfType <Foo>();
}
public void Instance_WhenInstanceSetToNull_ShouldThrow()
{
AmbientServiceWithDefault.Create = () => new Foo2();
var sut = new AmbientServiceWithDefault();
Action setInstanceToNull = () => sut.Instance = null;
setInstanceToNull.ShouldThrow <ArgumentNullException>();
}
public void Instance_WhenDefaultDelegateSuppliedAndCreateSet_ShouldReturnCreateInstance()
{
AmbientServiceWithDefault.Create = () => new Foo2();
var sut = new AmbientServiceWithDefault();
var instance = sut.Instance;
instance.Should().BeOfType <Foo2>();
}
public void Instance_WhenInstanceSet_ShouldReturnInstance()
{
AmbientServiceWithDefault.Create = () => new Foo2();
var sut = new AmbientServiceWithDefault();
sut.Instance = new Foo();
var instance = sut.Instance;
instance.Should().BeOfType <Foo>();
}
