public void ThrowsAnExceptionWhenStartingWhileInTheErrorState()
{
using var target = new StubProcessor();
target.SetState(ProcessorState.Error);
Assert.Throws <RuntimeException>(() => target.Start());
}
public void ChangeToAnErrorStateWhenExceptionThrownDuringStart()
{
using var target = new StubProcessor();
target.SetupCallbacks(() => throw new Exception("This is a test exception"));
Assert.Throws <Exception>(() => target.Start());
Assert.AreEqual(ProcessorState.Error, target.State);
}
public void StoppingTwiceThrowsAnException()
{
using var target = new StubProcessor();
target.Start();
target.Stop();
Assert.Throws <RuntimeException>(() => target.Stop());
}
public void ThrowAnExceptionWhenTheProcessorIsAlreadyStarted()
{
using var target = new StubProcessor();
target.Start();
Assert.AreEqual(ProcessorState.Started, target.State);
Assert.Throws <RuntimeException>(() => target.ExecuteGuardMustNotAlreadyBeStarted());
}
public void ThrowsAnExceptionWhenStartedAfterDisposed()
{
var target = new StubProcessor();
target.Dispose();
Assert.Throws <ObjectDisposedException>(() => target.Start());
}
public void ChangeTheProcessorStatesDuringStart()
{
var tested = false;
using var target = new StubProcessor();
target.SetupCallbacks(() =>
{
Assert.AreEqual(ProcessorState.Starting, target.State);
tested = true;
});
target.Start();
Assert.True(tested);
Assert.AreEqual(ProcessorState.Started, target.State);
}