如何检查FakeItEasy是否必须发生对任何过载的调用？

Question

我有一个我正在测试的方法.给定某些输入,它应该向记录器(ILogger)写入失败方法.该接口有几个Log()重载,以及一些属性(例如日志记录级别).我正在使用FakeItEasy嘲笑记录器.

我想断言的是发生了对Log()的调用.但是,我不关心使用了哪个特定的重载.我怎样才能做到这一点？

我的想法:

// Doesn't work, since a different overload (with more parameters) is used.
A.CallTo(() => mockLogger.Log(null)).WithAnyArguments().MustHaveHappened();

// "Works", but if the code were to call something else on the logger
// (ex. change the logging level), this would also pass!
Any.CallTo(mockLogger).MustHaveHappened();

Answer 1

编辑

这可以使用以下语法完成:

A.CallTo(logger).Where(x => x.Method.Name == "Log").MustHaveHappened()

原始答案

没有简单的方法可以做到这一点,并且 - 如果我错了,请纠正我 - 我认为没有任何模拟框架.

话虽如此,下面的例子中提供的方法并不那么容易.

public interface ILogger
{
    void Log(string value);
    void Log(object value);
}

public class LoggerTests
{
    public void FakeGetCallsExample()
    {
        var logger = A.Fake<ILogger>();

        logger.Log("whatever");

        var callsToLog = Fake.GetCalls(logger).Where(x => x.Method.Name.Equals("Log"));

        // Asserting with NUnit.
        Assert.That(callsToLog(), Is.Not.Empty);
    }

    // The following does not work as of now but I'll seriously consider
    // implementing it:
    public void AnyCallToWithCallSpecificationExample()
    {
        var logger = A.Fake<ILogger>();

        logger.Log("whatever");

        // I would add a "filtering" method to the Any.CallTo-syntax:
        Any.CallTo(logger).WhereCallMatches(x => x.Method.Name.Equals("Log")).MustHaveHappened();

        // It would also enable an extension method:
        Any.CallTo(logger).ToMethodNamed("Log").MustHaveHappened();
    }
}