public void MustUseSameInstanceForAllOperations()
{
var first = true;
var operation = operationMock.Object;
IOperation initialize()
{
if (first)
{
first = false;
return(operation);
}
return(new Mock <IOperation>().Object);
};
var sut = new LazyInitializationOperation(initialize);
sut.Perform();
sut.Revert();
operationMock.Verify(o => o.Perform(), Times.Once);
operationMock.Verify(o => o.Revert(), Times.Once);
}
public void MustNotInstantiateOperationOnRevert()
{
IOperation initialize()
{
return(operationMock.Object);
};
var sut = new LazyInitializationOperation(initialize);
sut.Revert();
}
public void MustReturnCorrectOperationResult()
{
IOperation initialize()
{
return(operationMock.Object);
};
operationMock.Setup(o => o.Perform()).Returns(OperationResult.Success);
operationMock.Setup(o => o.Revert()).Returns(OperationResult.Failed);
var sut = new LazyInitializationOperation(initialize);
var perform = sut.Perform();
var revert = sut.Revert();
Assert.AreEqual(OperationResult.Success, perform);
Assert.AreEqual(OperationResult.Failed, revert);
}
