public void SimulationStateChangedOnNodesTest()
{
var simulation = new MyLocalSimulation();
var handler = new MySimulationHandler(simulation);
MyProject project = new MyProject
{
Network = new MyNetwork()
};
project.CreateWorld(typeof(MyTestingWorld));
var node = project.CreateNode<TestingNode>();
node.Event = new AutoResetEvent(false);
project.Network.AddChild(node);
var connection = new MyConnection(project.Network.GroupInputNodes[0], project.Network.Children[0]);
connection.Connect();
project.Network.PrepareConnections();
handler.Project = project;
handler.UpdateMemoryModel();
handler.StartSimulation(oneStepOnly: false);
node.Event.WaitOne();
Assert.Equal(MySimulationHandler.SimulationState.STOPPED, node.PreviousState);
Assert.Equal(MySimulationHandler.SimulationState.RUNNING, node.CurrentState);
handler.PauseSimulation();
node.Event.WaitOne();
Assert.Equal(MySimulationHandler.SimulationState.RUNNING, node.PreviousState);
Assert.Equal(MySimulationHandler.SimulationState.PAUSED, node.CurrentState);
handler.StartSimulation(oneStepOnly: true);
node.Event.WaitOne(); // Here the sim goes from paused to RUNNING_STEP.
Assert.Equal(MySimulationHandler.SimulationState.PAUSED, node.PreviousState);
Assert.Equal(MySimulationHandler.SimulationState.RUNNING_STEP, node.CurrentState);
node.Event.WaitOne(); // Here it goes to PAUSED.
Assert.Equal(MySimulationHandler.SimulationState.RUNNING_STEP, node.PreviousState);
Assert.Equal(MySimulationHandler.SimulationState.PAUSED, node.CurrentState);
handler.StopSimulation();
node.Event.WaitOne();
Assert.Equal(MySimulationHandler.SimulationState.PAUSED, node.PreviousState);
Assert.Equal(MySimulationHandler.SimulationState.STOPPED, node.CurrentState);
handler.Finish();
}
public void FileCanBeReadWhenSimulationIsNotRunning()
{
string directory = Path.GetFullPath(@"Data\");
const string fileName = "csv_file_test.brain";
m_outputFileFullPath = Path.GetTempFileName();
var outputFileName = Path.GetFileName(m_outputFileFullPath);
var outputFileDirectory = Path.GetDirectoryName(m_outputFileFullPath);
string projectPath = directory + fileName;
var simulation = new MyLocalSimulation();
// TODO(HonzaS): This should not be required!
// The referenced assemblies get loaded only if a Type is required here. But since the serializer
// is just looking for types by name, it doesn't force the runtime to load all of the assemblies.
// In this case, we would miss the BasicNodes if the following line was deleted.
// Two solutions: 1) Use the Managed Extensibility Framework or 2) load all referenced assemblies
// explicitely (as a part of the BS testing framework).
var csvNode = new MyCsvFileWriterNode();
MyProject project = MyProject.Deserialize(File.ReadAllText(projectPath), Path.GetDirectoryName(projectPath));
var handler = new MySimulationHandler(simulation)
{
Project = project
};
// The CSV node
MyNode node = project.Network.GetChildNodeById(6);
PropertyInfo fileNameProperty = node.GetType().GetProperty("OutputFile", BindingFlags.Instance | BindingFlags.Public);
fileNameProperty.SetValue(node, outputFileName);
PropertyInfo directoryProperty = node.GetType().GetProperty("OutputDirectory", BindingFlags.Instance | BindingFlags.Public);
directoryProperty.SetValue(node, outputFileDirectory);
handler.UpdateMemoryModel();
handler.StateChanged += StateChanged;
try
{
handler.StartSimulation();
m_continueEvent.WaitOne();
Assert.Throws<IOException>(() =>
{
File.Open(m_outputFileFullPath, FileMode.Open, FileAccess.ReadWrite);
});
// Every time we change simulation state, the StateChanged method gets notified.
// We're changing the state several times here and the StateChanged methods checks that
// the file that the Csv node uses is available for writing.
// First, go through start->pause->stop.
handler.PauseSimulation();
m_continueEvent.WaitOne();
handler.StopSimulation();
m_continueEvent.WaitOne();
// Now, try start->stop only.
handler.StartSimulation();
m_continueEvent.WaitOne();
handler.StopSimulation();
m_continueEvent.WaitOne();
// The file should have been successfully opened three times - every time the simulation was paused or stopped.
Assert.Equal(3, m_openCount);
}
finally
{
handler.Finish();
File.Delete(m_outputFileFullPath);
m_outputFileFullPath = null;
}
}