public void ShouldThrowExceptionIfAddSameTypeTwice()
{
IContainer container = new SimpleContainer();
container.Add <MyThing>();
container.Add <MyThing>();
Assert.Fail("Should have thrown exception");
}
public void ShouldResolveDependencies()
{
IContainer container = new SimpleContainer();
container.Add <MyDependency>();
container.Add <ThingWithNoDependencies>();
var myThing = container.Resolve <MyDependency>();
Assert.That(myThing.Dependency, Is.InstanceOfType(typeof(ThingWithNoDependencies)));
}
public void Run()
{
var l1 = new Leaf();
var l2 = new Leaf();
var c = new SimpleContainer();
c.Add(l1);
c.Add(l2);
c.Method();
}
public void ShouldResolveUsingConstructorWithMostDependencies()
{
IContainer container = new SimpleContainer();
container.Add <MyThingWithReverseConstructor>();
container.Add <ThingWithNoDependencies>();
var myThing = container.Resolve <MyThingWithReverseConstructor>();
Assert.That(myThing.Dependency, Is.Not.Null, "Wrong constructor was used");
Assert.That(myThing.Dependency, Is.InstanceOfType(typeof(ThingWithNoDependencies)));
}
public void ShouldResolveWithDependenciesInAnyOrder()
{
IContainer container = new SimpleContainer();
container.Add <MyDependency>();
container.Add <MyThing>();
container.Add <ThingWithNoDependencies>();
var myThing = container.Resolve <MyThing>();
Assert.That(myThing.Dependency, Is.InstanceOfType(typeof(MyDependency)), "1st level Dependency was not fulfilled");
Assert.That(myThing.Dependency.Dependency, Is.InstanceOfType(typeof(ThingWithNoDependencies)), "2nd level Dependency was not fulfiled");
}
public void Add_ExistingKey_ObjectIsOverrided()
{
var container = new SimpleContainer();
var container2 = new SimpleContainer();
//act
container.Add(container);
container.Add(container2);
var obj = container.Resolve <SimpleContainer>();
//assert
Assert.Same(container2, obj);
}
public void ResolveShouldThrowExceptionIfConstructorIsNotSatifiable()
{
IContainer container = new SimpleContainer();
container.Add <MyThing>();
container.Resolve <MyThing>();
Assert.Fail("Should have thrown exception");
}
public void ShouldResolveByType()
{
IContainer container = new SimpleContainer();
container.Add <IThing, ThingWithNoDependencies>();
object thing = container.Resolve(typeof(IThing));
Assert.That(thing, Is.InstanceOfType(typeof(ThingWithNoDependencies)));
}
public void ShouldResolveUsingConstructorWithMostDependenciesThatIsSatisfiable()
{
IContainer container = new SimpleContainer();
container.Add <MyThingWithReverseConstructor>();
var myThing = container.Resolve <MyThingWithReverseConstructor>();
Assert.That(myThing.Dependency, Is.Null);
}
public void ShouldAddAndResolveByClass()
{
IContainer container = new SimpleContainer();
container.Add <ThingWithNoDependencies>();
var result = container.Resolve <ThingWithNoDependencies>();
Assert.That(result, Is.InstanceOfType(typeof(ThingWithNoDependencies)));
}
public void ShouldAddAndResolveByInterface()
{
IContainer container = new SimpleContainer();
container.Add <IThing, ThingWithNoDependencies>();
var thing = container.Resolve <IThing>();
Assert.That(thing, Is.InstanceOfType(typeof(ThingWithNoDependencies)));
}
public void ResolveShouldReturnSameInstanceWhenCalledTwice()
{
IContainer container = new SimpleContainer();
container.Add <ThingWithNoDependencies>();
var result1 = container.Resolve <ThingWithNoDependencies>();
var result2 = container.Resolve <ThingWithNoDependencies>();
Assert.AreSame(result1, result2);
}
public void ShouldChainContainersThroughMissingAction()
{
IContainer parent = new SimpleContainer();
parent.Add <IThing, ThingWithNoDependencies>();
IContainer child = new SimpleContainer(parent.Resolve);
IThing thing = child.Resolve <IThing>();
Assert.That(thing, Is.InstanceOfType(typeof(ThingWithNoDependencies)));
}
public void ShouldDecorateAnExistingComponent()
{
IContainer container = new SimpleContainer();
container.Add <IThing, ThingWithNoDependencies>();
container.Decorate <IThing, DecoratedThing>();
var thing = container.Resolve <IThing>();
Assert.That(thing, Is.InstanceOfType(typeof(DecoratedThing)));
Assert.That(thing.Dependency, Is.InstanceOfType(typeof(ThingWithNoDependencies)));
}
public void Add_NewKey_ObjectAdded()
{
var container = new SimpleContainer();
//act
container.Add(container);
var obj = container.Resolve <SimpleContainer>();
//assert
Assert.Same(container, obj);
}
public void Resolve_NonGeneric_ReturnCorrectObject()
{
var container = new SimpleContainer();
container.Add(container);
//act
var obj = container.Resolve(typeof(SimpleContainer));
//assert
Assert.Same(container, obj);
}
public void ShouldOnlyCallCreationLambdaOnce()
{
int count = 0;
IContainer container = new SimpleContainer();
container.Add <IThing>(() => {
count++;
return(new ThingWithNoDependencies());
});
container.Resolve <IThing>();
container.Resolve <IThing>();
Assert.That(count, Is.EqualTo(1));
}
public void ShouldOnlyCallCreationLambdaOnceEvenFromDifferentThreads()
{
int count = 0;
IContainer container = new SimpleContainer();
container.Add <IThing>(() => {
count++;
Thread.Sleep(10);
return(new ThingWithNoDependencies());
});
IThing[] results = new IThing[2];
ThreadPool.QueueUserWorkItem((ignore) => results[0] = container.Resolve <IThing>());
ThreadPool.QueueUserWorkItem((ignore) => results[1] = container.Resolve <IThing>());
Thread.Sleep(50);
Assert.That(count, Is.EqualTo(1));
Assert.AreSame(results[0], results[1]);
}
public void TestBuilder_WithContainer_ObjectIsCreatedUsingBuilderProperties()
{
var container = new SimpleContainer();
var testService = new TestServiceA();
container.Add <ITestServiceA>(testService);
var builder = new Implementation.BuilderWithOneInterfaceProperty(container);
var testObject = builder.Build();
//Assert the builder properties
Assert.Same(testService, builder.TestService); //use the object from container
Assert.Equal(2, builder.Id);
//Assert the object properties
Assert.Equal(0, testObject.Number);
Assert.Equal(DateTime.MinValue, testObject.Date);
Assert.Same(builder.TestService, testObject.TestServiceA); //use the same object from container
Assert.NotNull(testObject.TestObjectB); //create a new object
}