public void Should_select_plugin_instances_that_apply_in_order()
{
var instance3 = new SomeImplementation3();
_definitions.Append <SomeImplementation4>()
.Append <SomeImplementation1>(x => x.SomeValue < 6)
.Append <SomeImplementation2>(x => x.SomeValue > 5)
.Append(instance3);
var definitions = _definitions.ThatApplyTo(new List <ISomePlugin>
{
new SomeImplementation1(),
new SomeImplementation2(),
new SomeImplementation3(),
new SomeImplementation3(),
new SomeImplementation4(x => x.SomeValue > 5),
new SomeImplementation5(x => x.SomeValue < 6),
null
}, new SomePluginContext {
SomeValue = 5
}).ToList();
definitions.Count.ShouldEqual(4);
definitions[0].GetType().ShouldEqual(typeof(SomeImplementation1));
definitions[1].GetType().ShouldEqual(typeof(SomeImplementation3));
definitions[2].GetType().ShouldEqual(typeof(SomeImplementation3));
definitions[3].GetType().ShouldEqual(typeof(SomeImplementation5));
}
public void Should_prepend_a_plugin_before_another_and_remove_existing()
{
var instance2 = new SomeImplementation2();
var instance3 = new SomeImplementation3();
_definitions.Append <SomeImplementation1>()
.Append(instance2)
.Append <SomeImplementation3>()
.Append <SomeImplementation4>();
_definitions.Prepend(instance3).Before <SomeImplementation1>();
_definitions.Prepend <SomeImplementation4>().Before <SomeImplementation2>();
var definitions = _definitions.ToList();
_definitions.Count().ShouldEqual(4);
definitions[0].HasInstance.ShouldBeTrue();
definitions[0].Instance.ShouldEqual(instance3);
definitions[1].HasInstance.ShouldBeFalse();
definitions[1].Type.ShouldEqual(typeof(SomeImplementation1));
definitions[2].HasInstance.ShouldBeFalse();
definitions[2].Type.ShouldEqual(typeof(SomeImplementation4));
definitions[3].HasInstance.ShouldBeTrue();
definitions[3].Instance.ShouldEqual(instance2);
}
public void Should_select_plugin_defintions_that_apply_in_order()
{
var instance3 = new SomeImplementation3();
_definitions
.Append <SomeImplementation1>(x => x.SomeValue < 6)
.Append <SomeImplementation2>(x => x.SomeValue > 5)
.Append(instance3);
var definitions = _definitions.ThatApplyTo(new SomePluginContext {
SomeValue = 5
}).ToList();
definitions.Count.ShouldEqual(2);
definitions[0].HasInstance.ShouldBeFalse();
definitions[0].Type.ShouldEqual(typeof(SomeImplementation1));
definitions[1].HasInstance.ShouldBeTrue();
definitions[1].Instance.ShouldEqual(instance3);
}
