public IEnumerator ProcessReadsFromStandardInput()
{
using (var test = StartTest())
{
var input = new List <string> {
"Hello", "World\u001A"
};
var expectedOutput = "Hello";
var procTask = new HelperProcessTask(test.TaskManager, test.ProcessManager, TestApp, @"--sleep 100 -i")
.Configure(test.ProcessManager);
procTask.OnStartProcess += proc => {
foreach (var item in input)
{
proc.StandardInput.WriteLine(item);
}
proc.StandardInput.Close();
};
var chain = procTask.Finally((s, e, d) => d);
// wait for the tasks to finish
foreach (var frame in StartAndWaitForCompletion(chain))
{
yield return(frame);
}
var output = chain.Result;
Assert.AreEqual(expectedOutput, output);
}
}
public async Task CanDetach_()
{
Process process = default;
using (var test = StartTest())
{
using (var task = new HelperProcessTask(test.TaskManager, test.ProcessManager,
TestApp, @"--sleep 1000 --data ""ok"""))
{
task.OnStartProcess += p => {
process = ((ProcessWrapper)p.Wrapper).Process;
task.Detach();
};
var ret = await task.StartAwait();
Assert.Null(ret);
Assert.False(task.Wrapper.HasExited);
Assert.False(process.HasExited);
}
}
}
public IEnumerator MultipleFinallyOrder()
{
using (var test = StartTest())
{
var results = new List <string>();
var beforeProcess = new ActionTask(test.TaskManager, _ => results.Add("BeforeProcess"))
{
Name = "BeforeProcess"
};
var processTask = new HelperProcessTask(test.TaskManager, test.ProcessManager, TestApp, "-x")
{
Name = "Process"
};
// this will never run because the process throws an exception
var processOutputTask = new FuncTask <string, int>(test.TaskManager, (success, previous) => {
results.Add(previous);
results.Add("ProcessOutput");
return(1234);
});
var innerChain = processTask.Then(processOutputTask).Finally((b, exception) => results.Add("ProcessFinally"), "ProcessFinally");
var outerChain = beforeProcess.Then(innerChain).Finally((b, exception) => results.Add("AfterProcessFinally"), "AfterProcessFinally");
// wait for the tasks to finish
foreach (var frame in StartAndWaitForCompletion(innerChain, outerChain))
{
yield return(frame);
}
results.MatchesUnsorted(new[] { "BeforeProcess", "ProcessFinally", "AfterProcessFinally" });
Assert.AreEqual("BeforeProcess", results[0]);
var expected = new List <string> {
"ProcessFinally", "AfterProcessFinally"
};
results.Skip(1).MatchesUnsorted(expected);
}
}
public IEnumerator ProcessReturningErrorThrowsException()
{
using (var test = StartTest())
{
var success = false;
Exception thrown1, thrown2;
thrown1 = thrown2 = null;
var output = new List <string>();
var expectedOutput = new[] { "first" };
// run a process that prints "one name" in the console
// then run another process that throws an exception and sets exit code to -1
// exit codes != 0 cause a ProcessException to be thrown
var task = new HelperProcessTask(test.TaskManager, test.ProcessManager, TestApp, @"--sleep 100 -d ""first""")
// this won't run because there's no exception here
.Catch(ex => thrown1 = ex)
// save the output of the process
.Then(output.Add)
// run the second process, which is going to throw an exception
.Then(new HelperProcessTask(test.TaskManager, test.ProcessManager, TestApp, @"-d ""second"" -e kaboom -r -1"))
// this records the exception
.Catch(ex => thrown2 = ex)
// this never runs because of the exception
.Then(output.Add)
// this will always run
.Finally((s, e) => success = s);
// wait for the tasks to finish
foreach (var frame in StartAndWaitForCompletion(task))
{
yield return(frame);
}
Assert.IsFalse(success);
CollectionAssert.AreEqual(expectedOutput, output);
Assert.IsNull(thrown1);
Assert.IsInstanceOf <ProcessException>(thrown2);
Assert.AreEqual("kaboom", thrown2.Message);
}
}
public IEnumerator ProcessOnStartOnEndTaskOrder()
{
using (var test = StartTest())
{
var values = new List <string>();
string process1Value = null;
string process2Value = null;
var process1Task = new HelperProcessTask(test.TaskManager, test.ProcessManager, TestApp, @"--sleep 100 -d process1")
.Configure(test.ProcessManager)
.Then(s => {
process1Value = s;
values.Add(s);
});
var process2Task = new HelperProcessTask(test.TaskManager, test.ProcessManager, TestApp, @"---sleep 100 -d process2")
.Configure(test.ProcessManager)
.Then(s => {
process2Value = s;
values.Add(s);
});
var combinedTask = process1Task.Then(process2Task);
combinedTask.OnStart += task => { values.Add("OnStart"); };
combinedTask.OnEnd += (task, success, ex) => { values.Add("OnEnd"); };
// wait for the tasks to finish
foreach (var frame in StartAndWaitForCompletion(combinedTask))
{
yield return(frame);
}
Assert.AreEqual(process1Value, "process1");
Assert.AreEqual(process2Value, "process2");
Assert.True(values.SequenceEqual(new[] { "process1", "OnStart", "process2", "OnEnd" }));
}
}
public IEnumerator NestedProcessShouldChainCorrectly()
{
using (var test = StartTest())
{
var expected = new List <string> {
"BeforeProcess", "ok", "AfterProcess", "ProcessFinally", "AfterProcessFinally"
};
var results = new List <string>();
var beforeProcess = new ActionTask(test.TaskManager, _ => results.Add("BeforeProcess"))
{
Name = "BeforeProcess"
};
var processTask = new HelperProcessTask(test.TaskManager, test.ProcessManager, TestApp, @"--sleep 1000 --data ""ok""");
var processOutputTask = new FuncTask <string, int>(test.TaskManager, (b, previous) => {
results.Add(previous);
results.Add("AfterProcess");
return(1234);
})
{
Name = "AfterProcess"
};
var innerChain = processTask.Then(processOutputTask).Finally((b, exception) => results.Add("ProcessFinally"), "ProcessFinally");
var outerChain = beforeProcess.Then(innerChain).Finally((b, exception) => results.Add("AfterProcessFinally"), "AfterProcessFinally");
// wait for the tasks to finish
foreach (var frame in StartAndWaitForCompletion(innerChain, outerChain))
{
yield return(frame);
}
results.Matches(expected);
}
}