mocking - 什么是模拟录制和回放？

Question

我有一个模拟如下:

MockRepository mocks = new MockRepository();
ILoanRepository loanRepo = mocks.StrictMock<ILoanRepository>();
SetupResult.For(loanRepo.GetLoanExtended("sdfsdf")).Return(list.AsEnumerable<Loan>());
mocks.ReplayAll();

我的问题是我看到上面的内容被用于 using 语句，例如

using (mocks.Record()) { // code here }
using (mocks.Playback()) { // code here }

这样做的目的是什么以及与我所做的有什么不同？

Answer 1

这些只是执行相同操作的另一种语法。以下是等效的:

MockRepository mocks = new MockRepository();
ILoanRepository loanRepo = mocks.StrictMock<ILoanRepository>();
SetupResult.For(loanRepo.GetLoanExtended("sdfsdf")).Return(list.AsEnumerable<Loan>());
mocks.ReplayAll();
//test execution

和:

MockRepository mocks = new MockRepository();
using (mocks.Record()) {
    ILoanRepository loanRepo = mocks.StrictMock<ILoanRepository>();
    SetupResult.For(loanRepo.GetLoanExtended("sdfsdf")).Return(list.AsEnumerable<Loan>());
}
using (mocks.Playback()) {
    //test execution
}

为了让事情变得更加复杂，有一种新的第三种语法，您没有显式的记录和播放阶段，称为排列、 Action 、断言语法，请参见例如http://ayende.com/blog/archive/2008/05/16/rhino-mocks--arrange-act-assert-syntax.aspx