is there a better way to test this class?












0












$begingroup$


Recently, I am learning unit test and try to use this skill in my project.
However, I have some question about how to test following code.



 public class Class1
{
private Timer _timer = new Timer();

public Class1()
{
_timer.Interval = 1000;
_timer.Elapsed += _timer_Elapsed;
}

private void _timer_Elapsed(object sender, ElapsedEventArgs e)
{
//some works
}

public void start()
{
_timer.Start();
//some works

}
public void stop()
{
_timer.Stop();
//some works
}
}


I truly don't know how to test this class without breaking its encapsulation.



Should I expose '_timer_Elapsed' method? Evan if do so, next question comes to how to test method 'start' and 'stop'. Should I use stub object to substitute the Timer in order to test this class? if that, this class will be too complex because I need to make an interface and make a class which encapsulates Timer and implement the interface above.



public interface IEncal
{
double Interval { get; set; }
event ElapsedEventHandler Elapsed;
void Stop();
void Start();
}
public class MyClass : IEncal
{
Timer timer = new Timer();
public double Interval { get { return timer.Interval; } set { timer.Interval = value; } }

public event ElapsedEventHandler Elapsed
{
add { timer.Elapsed += value; }
remove { timer.Elapsed -= value; }
}

public void Start()
{
timer.Start();
}

public void Stop()
{
timer.Stop();
}
}
public class Class1
{
private IEncal _timer;

public Class1(IEncal timer)
{
_timer = timer;
_timer.Interval = 1000;
_timer.Elapsed += _timer_Elapsed;
}

public void _timer_Elapsed(object sender, ElapsedEventArgs e)
{
//some works
}

public void start()
{
_timer.Start();
//some works
}
public void stop()
{
_timer.Stop();
//some works
}
}


Is there any better way to test this class?









share







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    0












    $begingroup$


    Recently, I am learning unit test and try to use this skill in my project.
    However, I have some question about how to test following code.



     public class Class1
    {
    private Timer _timer = new Timer();

    public Class1()
    {
    _timer.Interval = 1000;
    _timer.Elapsed += _timer_Elapsed;
    }

    private void _timer_Elapsed(object sender, ElapsedEventArgs e)
    {
    //some works
    }

    public void start()
    {
    _timer.Start();
    //some works

    }
    public void stop()
    {
    _timer.Stop();
    //some works
    }
    }


    I truly don't know how to test this class without breaking its encapsulation.



    Should I expose '_timer_Elapsed' method? Evan if do so, next question comes to how to test method 'start' and 'stop'. Should I use stub object to substitute the Timer in order to test this class? if that, this class will be too complex because I need to make an interface and make a class which encapsulates Timer and implement the interface above.



    public interface IEncal
    {
    double Interval { get; set; }
    event ElapsedEventHandler Elapsed;
    void Stop();
    void Start();
    }
    public class MyClass : IEncal
    {
    Timer timer = new Timer();
    public double Interval { get { return timer.Interval; } set { timer.Interval = value; } }

    public event ElapsedEventHandler Elapsed
    {
    add { timer.Elapsed += value; }
    remove { timer.Elapsed -= value; }
    }

    public void Start()
    {
    timer.Start();
    }

    public void Stop()
    {
    timer.Stop();
    }
    }
    public class Class1
    {
    private IEncal _timer;

    public Class1(IEncal timer)
    {
    _timer = timer;
    _timer.Interval = 1000;
    _timer.Elapsed += _timer_Elapsed;
    }

    public void _timer_Elapsed(object sender, ElapsedEventArgs e)
    {
    //some works
    }

    public void start()
    {
    _timer.Start();
    //some works
    }
    public void stop()
    {
    _timer.Stop();
    //some works
    }
    }


    Is there any better way to test this class?









    share







    New contributor




    黃柏傑 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.







    $endgroup$















      0












      0








      0





      $begingroup$


      Recently, I am learning unit test and try to use this skill in my project.
      However, I have some question about how to test following code.



       public class Class1
      {
      private Timer _timer = new Timer();

      public Class1()
      {
      _timer.Interval = 1000;
      _timer.Elapsed += _timer_Elapsed;
      }

      private void _timer_Elapsed(object sender, ElapsedEventArgs e)
      {
      //some works
      }

      public void start()
      {
      _timer.Start();
      //some works

      }
      public void stop()
      {
      _timer.Stop();
      //some works
      }
      }


      I truly don't know how to test this class without breaking its encapsulation.



      Should I expose '_timer_Elapsed' method? Evan if do so, next question comes to how to test method 'start' and 'stop'. Should I use stub object to substitute the Timer in order to test this class? if that, this class will be too complex because I need to make an interface and make a class which encapsulates Timer and implement the interface above.



      public interface IEncal
      {
      double Interval { get; set; }
      event ElapsedEventHandler Elapsed;
      void Stop();
      void Start();
      }
      public class MyClass : IEncal
      {
      Timer timer = new Timer();
      public double Interval { get { return timer.Interval; } set { timer.Interval = value; } }

      public event ElapsedEventHandler Elapsed
      {
      add { timer.Elapsed += value; }
      remove { timer.Elapsed -= value; }
      }

      public void Start()
      {
      timer.Start();
      }

      public void Stop()
      {
      timer.Stop();
      }
      }
      public class Class1
      {
      private IEncal _timer;

      public Class1(IEncal timer)
      {
      _timer = timer;
      _timer.Interval = 1000;
      _timer.Elapsed += _timer_Elapsed;
      }

      public void _timer_Elapsed(object sender, ElapsedEventArgs e)
      {
      //some works
      }

      public void start()
      {
      _timer.Start();
      //some works
      }
      public void stop()
      {
      _timer.Stop();
      //some works
      }
      }


      Is there any better way to test this class?









      share







      New contributor




      黃柏傑 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.







      $endgroup$




      Recently, I am learning unit test and try to use this skill in my project.
      However, I have some question about how to test following code.



       public class Class1
      {
      private Timer _timer = new Timer();

      public Class1()
      {
      _timer.Interval = 1000;
      _timer.Elapsed += _timer_Elapsed;
      }

      private void _timer_Elapsed(object sender, ElapsedEventArgs e)
      {
      //some works
      }

      public void start()
      {
      _timer.Start();
      //some works

      }
      public void stop()
      {
      _timer.Stop();
      //some works
      }
      }


      I truly don't know how to test this class without breaking its encapsulation.



      Should I expose '_timer_Elapsed' method? Evan if do so, next question comes to how to test method 'start' and 'stop'. Should I use stub object to substitute the Timer in order to test this class? if that, this class will be too complex because I need to make an interface and make a class which encapsulates Timer and implement the interface above.



      public interface IEncal
      {
      double Interval { get; set; }
      event ElapsedEventHandler Elapsed;
      void Stop();
      void Start();
      }
      public class MyClass : IEncal
      {
      Timer timer = new Timer();
      public double Interval { get { return timer.Interval; } set { timer.Interval = value; } }

      public event ElapsedEventHandler Elapsed
      {
      add { timer.Elapsed += value; }
      remove { timer.Elapsed -= value; }
      }

      public void Start()
      {
      timer.Start();
      }

      public void Stop()
      {
      timer.Stop();
      }
      }
      public class Class1
      {
      private IEncal _timer;

      public Class1(IEncal timer)
      {
      _timer = timer;
      _timer.Interval = 1000;
      _timer.Elapsed += _timer_Elapsed;
      }

      public void _timer_Elapsed(object sender, ElapsedEventArgs e)
      {
      //some works
      }

      public void start()
      {
      _timer.Start();
      //some works
      }
      public void stop()
      {
      _timer.Stop();
      //some works
      }
      }


      Is there any better way to test this class?







      c# unit-testing





      share







      New contributor




      黃柏傑 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.










      share







      New contributor




      黃柏傑 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.








      share



      share






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      黃柏傑 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      asked 5 mins ago









      黃柏傑黃柏傑

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      New contributor





      黃柏傑 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






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