public void AppendLine2()
{
var logSystem = new LogSystem();
// 新建一个ILogWriter的Mock对象，其Object属性即为我们需要的伪对象
var fakeWriter = new Mock <ILogWriter>();
// 新建一个ISource的Mock对象，其Object属性即为我们需要的ISource伪对象
var fakeSource = new Mock <ISource>();
//将ISource伪对象注入到ILogWriter伪对象的属性
fakeWriter.SetupProperty(fake => fake.Source, fakeSource.Object);
// 伪造ILogWriter接口的CurrentLine属性
fakeWriter.SetupProperty(fake => fake.CurrentLine);
fakeWriter.Object.CurrentLine = 3;
// 当连续调用ILogWriter接口的AppendLine方法，并输入任意string类型参数时，触发回调使伪对象CurrentLine属性的值+1
fakeWriter.Setup(fake => fake.AppendLine(It.IsAny <string>()))
.Callback(() => fakeWriter.Object.CurrentLine++);
//将伪对象注入到被测试类
logSystem.OpenAppend(fakeWriter.Object);
logSystem.AppendLine("运行正常");
Assert.AreEqual(4, logSystem.Writer.CurrentLine);
}
public void AppendLine2()
{
var logSystem = new LogSystem();
//todo
//logSystem.OpenAppend(ILogWriter实例);
logSystem.AppendLine("运行正常");
Assert.AreEqual(4, logSystem.Writer.CurrentLine);
}