public void ShifterResolve_AClassIsRegisteredWithDependedClassThatDoesImplementIt_AnExceptionIsThrown()
{
var shifter = new ShifterContainer();
shifter.AddInstance(new RegisterClassBase().GetType(), new ResolveTestClass());
shifter.AddInstance(typeof(String), new ResolveTestClass());
}
public void ShifterAddInstance_SameInterfaceAndClassAreAdded_AnExcpetionIsNotThrown()
{
Action action = () =>
{
var shifter = new ShifterContainer();
shifter.AddInstance <IResolveTest>(new ImplementsResolveTest());
shifter.AddInstance(typeof(IResolveTest), new ImplementsResolveTest());
};
action.Should().NotThrow <ArgumentException>("because this cannot occur.");
}
public void WhenAllInstancesOfATypeAreResolvedGenericallyItShouldReturnAllInstances()
{
// Arrange
var expectedItemsList = new List <string> {
"All", "Instances", "Are", "Retrieved"
};
var container = new ShifterContainer();
container
.AddInstance(typeof(int), 1)
.AddInstance(typeof(string), "All")
.AddInstance(typeof(int), 1)
.AddInstance(typeof(string), "Instances")
.AddInstance(typeof(int), 1)
.AddInstance(typeof(string), "Are")
.AddInstance(typeof(int), 1)
.AddInstance(typeof(string), "Retrieved");
// Act
var resolveAll = container.GetAllInstances <String>();
// Assert
resolveAll.Count().Should().Be(4, "because there are 4 instances registered.");
resolveAll.Should().Contain(expectedItemsList);
}
public void ShifterResolve_ARegisteredClassIsResolved_TheClassIsResolvedToADependedClass()
{
var shifter = new ShifterContainer();
shifter.AddInstance(new RegisterClassBase().GetType(), new RegisterClassDerived());
var resolvedClass = shifter.Resolve(typeof(RegisterClassBase)) as RegisterClassDerived;
Assert.IsNotNull(resolvedClass);
Assert.IsInstanceOfType(resolvedClass, typeof(RegisterClassDerived));
}
public void ShifterResolve_ARegisteredInterfaceIsResolved_TheInterfaceIsResolvedToADependedClass()
{
var shifter = new ShifterContainer();
shifter.AddInstance(typeof(IResolveTest), new DefaultConstructorResolveTest());
var resolvedClass = shifter.Resolve(typeof(IResolveTest)) as DefaultConstructorResolveTest;
Assert.IsNotNull(resolvedClass);
Assert.IsInstanceOfType(resolvedClass, typeof(DefaultConstructorResolveTest));
}
public void ShifterResolve_ARegisteredClassIsResolved_TheClassIsResolved()
{
var shifter = new ShifterContainer();
shifter.AddInstance(new ResolveTestClass());
var resolvedClass = shifter.Resolve(typeof(ResolveTestClass)) as ResolveTestClass;
Assert.IsNotNull(resolvedClass);
Assert.IsInstanceOfType(resolvedClass, typeof(ResolveTestClass));
}
public void ShifterResolve_MethodIsInjected_TheMethodIsResolved()
{
const string injectedValue = "Tron";
var shifter = new ShifterContainer();
var resolvedClassWithOneParam = (ImplementsResolveTestWithParameters)shifter.AddInstance(injectedValue)
.AddType(typeof(IResolveTest), typeof(ImplementsResolveTestWithParameters))
.Resolve <IResolveTest>();
Assert.AreEqual(injectedValue, resolvedClassWithOneParam.MethodFieldInjected);
}
public void ShifterContainerResolve_PropertyInjected_ThePropertyIsInjctedWithTheClassProvided()
{
const string valueToInject = "hello world";
var shifter = new ShifterContainer();
var resolvedClass = shifter
.AddInstance(typeof(string), valueToInject)
.AddInstance(typeof(ImplementsResolveTest), new ImplementsResolveTest())
.Resolve <ImplementsResolveTest>();
Assert.AreEqual(valueToInject, resolvedClass.InjectedProperty);
}
public void WhenCallingGetServiceItShouldReturnTheValueRegisteredForTheService()
{
// Arrange
var container = new ShifterContainer();
container.AddInstance("The string that should be returned.");
// Act
var service = container.GetService(typeof(string));
// Assert
service.Should().Be("The string that should be returned.", "because this string should be returned.");
}
public void WhenCallingResetItShouldBePossibleToRegisterInstancesAgain()
{
// Arrange
var container = new ShifterContainer();
// Act
container.Reset();
container.AddInstance("string");
var resolvedValue = container.Resolve <string>();
// Assert
resolvedValue.Should().Be("string", "because we added it.");
}
public void WhenCallingGenericGetInstanceItShouldReturnTheInstanceRegisteredForTheCall()
{
// Arrange
var container = new ShifterContainer();
container.AddInstance("The string that should be returned.");
// Act
var instance = container.GetInstance <string>();
// Assert
instance.Should().Be("The string that should be returned.", "because this string should be returned.");
}
public void ShifterAddType_AdditionOfTypeWithConstructorWithParameters_TheTypeIsResolved()
{
const string injectedValue = "Tron";
var shifter = new ShifterContainer();
var resolvedClassWithOneParam = (ImplementsResolveTestWithParameters)shifter.AddInstance(injectedValue)
.AddType(typeof(IResolveTest), typeof(ImplementsResolveTestWithParameters))
.Resolve <IResolveTest>();
Assert.IsNotNull(resolvedClassWithOneParam);
Assert.IsInstanceOfType(resolvedClassWithOneParam, typeof(ImplementsResolveTestWithParameters));
Assert.AreEqual(injectedValue, resolvedClassWithOneParam.Param1);
Assert.AreEqual(injectedValue, resolvedClassWithOneParam.FieldToInject);
var resolvedClass = shifter.AddInstance(typeof(ImplementsResolveTestWithParameters), resolvedClassWithOneParam)
.AddType <ImplementsResolveTestWith2Parameters, ImplementsResolveTestWith2Parameters>()
.Resolve <ImplementsResolveTestWith2Parameters>();
Assert.IsNotNull(resolvedClass);
Assert.IsInstanceOfType(resolvedClass, typeof(ImplementsResolveTestWith2Parameters));
Assert.AreEqual(injectedValue, resolvedClass.Param1);
Assert.AreSame(resolvedClassWithOneParam, resolvedClass.Param2);
}
public void ShifterAddInstance_AddInstanceReturnsShiftContainer_TheShiftContainerIsReturned()
{
var shifter = new ShifterContainer();
IShifterContainer container = shifter.AddInstance(new object());
Assert.AreSame(shifter, container);
container = shifter.AddInstance <IResolveTest>(new ImplementsResolveTest());
Assert.AreSame(shifter, container);
container = shifter.AddInstance(typeof(ResolveTestClass), new ResolveTestClass());
Assert.AreSame(shifter, container);
container = shifter.AddType(typeof(IComparable), typeof(String));
Assert.AreSame(shifter, container);
container = shifter.AddType <IResolveTest2, ImplementsResolveTest2>();
Assert.AreSame(shifter, container);
}
public void WhenResettingItShouldUnregisterAllInstancesOfThatType()
{
// Arrange
var container = new ShifterContainer();
container
.AddInstance(typeof(int), 1234)
.AddInstance(typeof(string), "Hello")
.AddInstance(typeof(int), 2)
.AddInstance(typeof(IShifterContainer), ShifterContainer.Default);
// Act
container.Reset();
var resolvedInts = container.ResolveAll <int>();
var resolvedString = container.ResolveAll <string>();
var resolvedContainer = container.ResolveAll <IShifterContainer>();
// Assert
resolvedInts.Should().BeEmpty("because these ints are unregistered.");
resolvedString.Should().BeEmpty("because these strings are unregistered.");
resolvedContainer.Should().BeEmpty("because these containers are unregistered.");
}
public void WhenUnregisteringATypeGenericallyItShouldUnregisterAllInstancesOfThatType()
{
// Arrange
var container = new ShifterContainer();
container
.AddInstance(typeof(int), 1234)
.AddInstance(typeof(string), "Hello")
.AddInstance(typeof(int), 2)
.AddInstance(typeof(IShifterContainer), ShifterContainer.Default);
// Act
container.Unregister <int>();
var resolvedInts = container.ResolveAll <int>();
var resolvedString = container.ResolveAll <string>();
var resolvedContainer = container.ResolveAll <IShifterContainer>();
// Assert
resolvedInts.Should().BeEmpty("because these are unregistered.");
resolvedString.Count().Should().Be(1, "because one string was left.");
resolvedContainer.Count().Should().Be(1, "because one IShifterContainer was left.");
}
public void ShifterRegister2Params_FirstParamIsNull_AnExceptionIsThrown()
{
var shifter = new ShifterContainer();
shifter.AddInstance(null, new ResolveTestClass());
}
public void ShifterRegister2Params_SecondParamIsNull_AnExceptionIsThrown()
{
var shifter = new ShifterContainer();
shifter.AddInstance(new RegisterClassBase().GetType(), null);
}