public void Test_ShouldThrowInvalidOperationExceptionWhenStartingAgain()
{
var stoper = new MyStoper();
stoper.Start();
Assert.Throws <InvalidOperationException>(() => stoper.Start());
}
public void Test_ShouldThrowArgumentExceptionWhenRunning()
{
var stoper = new MyStoper();
stoper.Start();
Assert.Throws <ArgumentException>(() => stoper.Time);
}
public void Test_ShouldThrowInvalidOperationExceptionAfterRestarting()
{
var stoper = new MyStoper();
stoper.Start();
stoper.Stop();
stoper.Restart();
Assert.Throws <ArgumentException>(() => stoper.Time);
}
public void Test_ShouldReturnNotNullTime()
{
var stoper = new MyStoper();
stoper.Start();
stoper.Stop();
stoper.Start();
stoper.Stop();
double?time = stoper.Time;
Assert.True(time is not null);
}
