public async Task TestStartProcessHappyPath()
{
int startCallCount = 0;
int stopCallCount = 0;
IProcess process = new StubIProcess()
{
Start = () =>
{
startCallCount++;
return Task.FromResult(true);
}
};
string exePath = "";
string exeArgs = "";
IProcessFactory processFactory = new StubIProcessFactory()
{
CreateProcessStringString = (path, args) =>
{
exePath = path;
exeArgs = args;
return process;
}
};
IProcessStopper processStopper = new StubIProcessStopper
{
StopProcessIProcess = (p) =>
{
++stopCallCount;
return Task.FromResult(true);
}
};
ConfigurableApplication application = new ConfigurableApplication(AppPath, _appConfig, processFactory, processStopper);
await application.Start();
Assert.AreEqual(1, startCallCount);
Assert.AreEqual(0, stopCallCount);
Assert.AreEqual(TestExeArgs, exeArgs);
Assert.AreEqual(Path.Combine(AppPath, ExeName), exePath);
}
public async Task TestThatStopStopsTheProcess()
{
int stopCallCount = 0;
IProcess process = new StubIProcess()
{
Start = () => Task.FromResult(true)
};
IProcessStopper processStopper = new StubIProcessStopper
{
StopProcessIProcess = (p) =>
{
++stopCallCount;
return Task.FromResult(true);
}
};
IProcessFactory processFactory = new StubIProcessFactory()
{
CreateProcessStringString = (path, args) => process
};
ConfigurableApplication application = new ConfigurableApplication(AppPath, _appConfig, processFactory, processStopper);
await application.Start();
await application.Stop();
Assert.AreEqual(1, stopCallCount);
}
public async Task TestThatStartFailsIfProcessFailsToStart()
{
IProcess process = new StubIProcess()
{
Start = () =>
{
throw new Exception("Process failed to start");
}
};
IProcessFactory processFactory = new StubIProcessFactory()
{
CreateProcessStringString = (path, args) => process
};
IProcessStopper processStopper = new StubIProcessStopper();
ConfigurableApplication application = new ConfigurableApplication(AppPath, _appConfig, processFactory, processStopper);
Assert.IsFalse(await application.Start());
}
public async Task TestThatExitedEventIsEmittedWhenProcessFails()
{
ProcessStub process = new ProcessStub("", "");
IProcessFactory processFactory = new StubIProcessFactory()
{
CreateProcessStringString = (path, args) => process
};
ConfigurableApplication application = new ConfigurableApplication(AppPath, _appConfig, processFactory, new StubIProcessStopper());
ApplicationExitedArgs appExitedArgs = null;
int exitedEventCount = 0;
application.Exited += (sender, args) =>
{
appExitedArgs = args;
++exitedEventCount;
};
await application.Start();
process.RaiseExitedEvent();
Assert.AreEqual(1, exitedEventCount);
Assert.AreEqual(_appIdentity, appExitedArgs.AppIdentity);
}