public static void Constructor___Should_register_protocol_factories_in_order_specified___When_called()
{
// Arrange
IProtocol protocol1 = new SharedOperationProtocol1();
IProtocol protocol2 = new SiblingOperationProtocol();
IProtocol protocol3 = new SharedOperationProtocol2();
var protocolFactory1 = protocol1.ToProtocolFactory();
var protocolFactory2 = protocol2.ToProtocolFactory();
var protocolFactory3 = protocol3.ToProtocolFactory();
var systemUnderTest = new ChainOfResponsibilityProtocolFactory(new[] { protocolFactory1, protocolFactory2, protocolFactory3 });
var operation1 = new GetProtocolOp(new SharedOperation());
var operation2 = new GetProtocolOp(new SiblingOperation1());
var operation3 = new GetProtocolOp(new SiblingOperation2());
// Act
var actual1 = systemUnderTest.Execute(operation1);
var actual2 = systemUnderTest.Execute(operation2);
var actual3 = systemUnderTest.Execute(operation3);
// Assert
actual1.AsTest().Must().BeSameReferenceAs(protocol1);
actual2.AsTest().Must().BeSameReferenceAs(protocol2);
actual3.AsTest().Must().BeSameReferenceAs(protocol2);
}
public static void Execute___Should_return_registered_protocol___When_called()
{
// Arrange
var systemUnderTest = new ChainOfResponsibilityProtocolFactory();
IProtocol protocol1 = new SharedOperationProtocol1();
IProtocol protocol2 = new SiblingOperationProtocol();
IProtocol protocol3 = new SharedOperationProtocol2();
var protocolFactory1 = protocol1.ToProtocolFactory();
var protocolFactory2 = protocol2.ToProtocolFactory();
var protocolFactory3 = protocol3.ToProtocolFactory();
systemUnderTest.AddToEndOfChain(protocolFactory1);
systemUnderTest.AddToEndOfChain(protocolFactory2);
systemUnderTest.AddToEndOfChain(protocolFactory3);
var operation1 = new GetProtocolOp(new SharedOperation());
var operation2 = new GetProtocolOp(new SiblingOperation1());
var operation3 = new GetProtocolOp(new SiblingOperation2());
// Act
var actual1 = systemUnderTest.Execute(operation1);
var actual2 = systemUnderTest.Execute(operation2);
var actual3 = systemUnderTest.Execute(operation3);
// Assert
actual1.AsTest().Must().BeSameReferenceAs(protocol1);
actual2.AsTest().Must().BeSameReferenceAs(protocol2);
actual3.AsTest().Must().BeSameReferenceAs(protocol2);
}
public static void Constructor___Should_register_protocols_in_protocolTypeToGetProtocolFuncMap___When_called()
{
// Arrange
IProtocol protocol1 = new SharedOperationProtocol1();
IProtocol protocol2 = new SiblingOperationProtocol();
var protocolTypeToGetProtocolFuncMap = new Dictionary <Type, Func <IProtocol> >
{
{ typeof(SharedOperationProtocol1), () => protocol1 },
{ typeof(SiblingOperationProtocol), () => protocol2 },
};
var systemUnderTest = new ProtocolFactory(protocolTypeToGetProtocolFuncMap);
var operation1 = new GetProtocolOp(new SharedOperation());
var operation2 = new GetProtocolOp(new SiblingOperation1());
var operation3 = new GetProtocolOp(new SiblingOperation2());
// Act
var actual1 = systemUnderTest.Execute(operation1);
var actual2 = systemUnderTest.Execute(operation2);
var actual3 = systemUnderTest.Execute(operation3);
// Assert
actual1.AsTest().Must().BeSameReferenceAs(protocol1);
actual2.AsTest().Must().BeSameReferenceAs(protocol2);
actual3.AsTest().Must().BeSameReferenceAs(protocol2);
}
public static void Execute___Should_return_last_registered_protocol___When_second_protocol_supporting_same_operation_is_registered_with_ProtocolAlreadyRegisteredForOperationStrategy_Replace()
{
// Arrange
var systemUnderTest = new ProtocolFactory();
IProtocol protocol1 = new SharedOperationProtocol1();
IProtocol protocol2 = new SiblingOperationProtocol();
systemUnderTest.RegisterProtocolForSupportedOperations(typeof(SharedOperationProtocol1), () => new SharedOperationProtocol1());
systemUnderTest.RegisterProtocolForSupportedOperations(typeof(SiblingOperationProtocol), () => new SiblingOperationProtocol());
systemUnderTest.RegisterProtocolForSupportedOperations(typeof(SharedOperationProtocol1), () => protocol1, ProtocolAlreadyRegisteredForOperationStrategy.Replace);
systemUnderTest.RegisterProtocolForSupportedOperations(typeof(SiblingOperationProtocol), () => protocol2, ProtocolAlreadyRegisteredForOperationStrategy.Replace);
var operation1 = new GetProtocolOp(new SharedOperation());
var operation2 = new GetProtocolOp(new SiblingOperation1());
var operation3 = new GetProtocolOp(new SiblingOperation2());
// Act
var actual1 = systemUnderTest.Execute(operation1);
var actual2 = systemUnderTest.Execute(operation2);
var actual3 = systemUnderTest.Execute(operation3);
// Assert
actual1.AsTest().Must().BeSameReferenceAs(protocol1);
actual2.AsTest().Must().BeSameReferenceAs(protocol2);
actual3.AsTest().Must().BeSameReferenceAs(protocol2);
}
public static void Execute___Should_return_registered_protocol___When_called()
{
// Arrange
var systemUnderTest = new ProtocolFactory();
IProtocol protocol1 = new SharedOperationProtocol1();
IProtocol protocol2 = new SiblingOperationProtocol();
systemUnderTest.RegisterProtocolForSupportedOperations(typeof(SharedOperationProtocol1), () => protocol1);
systemUnderTest.RegisterProtocolForSupportedOperations(typeof(SiblingOperationProtocol), () => protocol2);
var operation1 = new GetProtocolOp(new SharedOperation());
var operation2 = new GetProtocolOp(new SiblingOperation1());
var operation3 = new GetProtocolOp(new SiblingOperation2());
// Act
var actual1 = systemUnderTest.Execute(operation1);
var actual2 = systemUnderTest.Execute(operation2);
var actual3 = systemUnderTest.Execute(operation3);
// Assert
actual1.AsTest().Must().BeSameReferenceAs(protocol1);
actual2.AsTest().Must().BeSameReferenceAs(protocol2);
actual3.AsTest().Must().BeSameReferenceAs(protocol2);
}
public static void Execute___Should_return_null___When_there_is_no_protocol_registered_for_the_operation_and_missingProtocolStrategy_is_ReturnNull()
{
// Arrange
var systemUnderTest = new ChainOfResponsibilityProtocolFactory();
var operation = new GetProtocolOp(new SharedOperation(), MissingProtocolStrategy.ReturnNull);
// Act
var actual = systemUnderTest.Execute(operation);
// Assert
actual.AsTest().Must().BeNull();
}
public static void Execute___Should_throw_OpExecutionFailedException___When_there_is_no_protocol_registered_for_the_operation_and_missingProtocolStrategy_is_Throw()
{
// Arrange
var systemUnderTest = new ChainOfResponsibilityProtocolFactory();
var operation = new GetProtocolOp(new SharedOperation(), MissingProtocolStrategy.Throw);
// Act
var actual = Record.Exception(() => systemUnderTest.Execute(operation));
// Assert
actual.AsTest().Must().BeOfType <OpExecutionFailedException>();
actual.Message.AsTest().Must().ContainString(Invariant($"There is no protocol registered for the specified operation: '{nameof(ChainOfResponsibilityProtocolFactoryTest)}.{nameof(SharedOperation)}'"));
}
public static void Execute___Should_throw_InvalidOperationException___When_getProtocolFunc_returns_null()
{
// Arrange
var systemUnderTest = new ProtocolFactory();
systemUnderTest.RegisterProtocolForSupportedOperations(typeof(SharedOperationProtocol1), () => null);
var operation = new GetProtocolOp(new SharedOperation());
// Act
var actual = Record.Exception(() => systemUnderTest.Execute(operation));
// Assert
actual.AsTest().Must().BeOfType <InvalidOperationException>();
actual.Message.AsTest().Must().ContainString(Invariant($"The func to get the protocol for the following specified operation returned null: '{nameof(ProtocolFactoryTest)}.{nameof(SharedOperation)}'"));
}
static GetProtocolOpTest()
{
ConstructorArgumentValidationTestScenarios
.AddScenario(() =>
new ConstructorArgumentValidationTestScenario <GetProtocolOp>
{
Name = "constructor should throw ArgumentOutOfRangeException when parameter 'missingProtocolStrategy' is MissingProtocolStrategy.Unknown",
ConstructionFunc = () =>
{
var result = new GetProtocolOp(
A.Dummy <IOperation>(),
MissingProtocolStrategy.Unknown);
return(result);
},
ExpectedExceptionType = typeof(ArgumentOutOfRangeException),
ExpectedExceptionMessageContains = new[] { "missingProtocolStrategy", "Unknown" },
});
}
public static void ShallowClone___Should_return_a_shallow_clone___When_called()
{
// Arrange
var systemUnderTest1 = new ProtocolFactory();
var systemUnderTest2 = new ProtocolFactory();
IProtocol protocol1 = new SharedOperationProtocol1();
IProtocol protocol2 = new SiblingOperationProtocol();
systemUnderTest1.RegisterProtocolForSupportedOperations(typeof(SharedOperationProtocol1), () => protocol1);
systemUnderTest2.RegisterProtocolForSupportedOperations(typeof(SharedOperationProtocol1), () => protocol1);
// Act
var actual1 = systemUnderTest1.ShallowClone();
var actual2 = systemUnderTest2.ShallowClone();
actual1.RegisterProtocolForSupportedOperations(typeof(SiblingOperationProtocol), () => protocol2);
systemUnderTest2.RegisterProtocolForSupportedOperations(typeof(SiblingOperationProtocol), () => protocol2);
// Assert
var operation1 = new GetProtocolOp(new SharedOperation());
var protocolFromOriginal1 = systemUnderTest1.Execute(operation1);
var protocolFromOriginal2 = systemUnderTest2.Execute(operation1);
var protocolFromClone1 = actual1.Execute(operation1);
var protocolFromClone2 = actual2.Execute(operation1);
protocolFromOriginal1.AsTest().Must().BeSameReferenceAs(protocol1);
protocolFromOriginal2.AsTest().Must().BeSameReferenceAs(protocol1);
protocolFromClone1.AsTest().Must().BeSameReferenceAs(protocol1);
protocolFromClone2.AsTest().Must().BeSameReferenceAs(protocol1);
var operation2 = new GetProtocolOp(new SiblingOperation1(), MissingProtocolStrategy.ReturnNull);
protocolFromOriginal1 = systemUnderTest1.Execute(operation2);
protocolFromOriginal2 = systemUnderTest2.Execute(operation2);
protocolFromClone1 = actual1.Execute(operation2);
protocolFromClone2 = actual2.Execute(operation2);
protocolFromOriginal1.AsTest().Must().BeNull();
protocolFromOriginal2.AsTest().Must().BeSameReferenceAs(protocol2);
protocolFromClone1.AsTest().Must().BeSameReferenceAs(protocol2);
protocolFromClone2.AsTest().Must().BeNull();
}
