func forwardSignals(signals <-chan os.Signal, process ifrit.Process) {
exit := process.Wait()
for {
select {
case sig := <-signals:
process.Signal(sig)
case <-exit:
return
}
}
}
{"child1", childRunner1},
{"child2", childRunner2},
{"child3", childRunner3},
}
groupRunner = grouper.NewOrdered(os.Interrupt, members)
})
AfterEach(func() {
childRunner1.EnsureExit()
childRunner2.EnsureExit()
childRunner3.EnsureExit()
Eventually(started).Should(BeClosed())
groupProcess.Signal(os.Kill)
Eventually(groupProcess.Wait()).Should(Receive())
})
BeforeEach(func() {
started = make(chan struct{})
go func() {
groupProcess = ifrit.Invoke(groupRunner)
close(started)
}()
})
It("runs the first runner, then the second, then becomes ready", func() {
Eventually(childRunner1.RunCallCount).Should(Equal(1))
Consistently(childRunner2.RunCallCount, Δ).Should(BeZero())
Consistently(started, Δ).ShouldNot(BeClosed())
})
Context("when the daemon won't start", func() {
fakeDeamonRunner = func(signals <-chan os.Signal, ready chan<- struct{}) error {
close(ready)
select {
case signal := <-signals:
return errors.New(signal.String())
case <-time.After(1 * time.Second):
// Daemon "crashes" after a while
}
return nil
}
It("times out", func() {
err := <-lifecycle.Wait()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("Timed out waiting for docker daemon to start"))
})
Context("and the process is interrupted", func() {
BeforeEach(func() {
lifecycle.Signal(os.Interrupt)
})
It("exists with error", func() {
err := <-lifecycle.Wait()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake_docker_daemon exited with error: interrupt"))
Expect(err.Error()).To(ContainSubstring("builder exited with error: interrupt"))
})
port := 8000 + GinkgoParallelNode()
address = fmt.Sprintf("127.0.0.1:%d", port)
server = http_server.New(address, handler)
})
Describe("Envoke", func() {
var process ifrit.Process
Context("when the server starts successfully", func() {
BeforeEach(func() {
process = ifrit.Envoke(server)
})
AfterEach(func() {
process.Signal(syscall.SIGINT)
Eventually(process.Wait()).Should(Receive())
})
Context("and a request is in flight", func() {
type httpResponse struct {
response *http.Response
err error
}
var responses chan httpResponse
BeforeEach(func() {
responses = make(chan httpResponse, 1)
go func() {
response, err := httpGet("http://" + address)
responses <- httpResponse{response, err}
close(responses)
func Kill(process ifrit.Process, intervals ...interface{}) {
if process != nil {
process.Signal(os.Kill)
Eventually(process.Wait(), intervals...).Should(Receive(), "killed ginkgomon process failed to exit in time")
}
}
func Interrupt(process ifrit.Process, intervals ...interface{}) {
process.Signal(os.Interrupt)
Eventually(process.Wait(), intervals...).Should(Receive(), "interrupted ginkgomon process failed to exit in time")
}
restarter = restart.Restarter{
Runner: testRunner,
Load: func(runner ifrit.Runner, err error) ifrit.Runner {
return nil
},
}
})
JustBeforeEach(func() {
process = ifrit.Background(restarter)
})
AfterEach(func() {
process.Signal(os.Kill)
testRunner.EnsureExit()
Eventually(process.Wait()).Should(Receive())
})
Describe("Process Behavior", func() {
It("waits for the internal runner to be ready", func() {
Consistently(process.Ready()).ShouldNot(BeClosed())
testRunner.TriggerReady()
Eventually(process.Ready()).Should(BeClosed())
})
})
Describe("Load", func() {
Context("when load returns a runner", func() {
var loadedRunner *fake_runner.TestRunner
var _ = Describe("Process", func() {
Context("when a process is envoked", func() {
var pinger test_helpers.PingChan
var pingProc ifrit.Process
var errChan chan error
BeforeEach(func() {
pinger = make(test_helpers.PingChan)
pingProc = ifrit.Envoke(pinger)
errChan = make(chan error)
})
Describe("Wait()", func() {
BeforeEach(func() {
go func() {
errChan <- <-pingProc.Wait()
}()
go func() {
errChan <- <-pingProc.Wait()
}()
})
Context("when the process exits", func() {
BeforeEach(func() {
go func() {
<-pinger
}()
})
It("returns the run result upon completion", func() {
err1 := <-errChan