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@ -20,6 +20,7 @@ import ( |
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"errors" |
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"io/ioutil" |
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"os" |
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"reflect" |
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"testing" |
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"github.com/ethereum/go-ethereum/crypto" |
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@ -98,79 +99,36 @@ func TestNodeUsedDataDir(t *testing.T) { |
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} |
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} |
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// NoopService is a trivial implementation of the Service interface.
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type NoopService struct{} |
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func (s *NoopService) Protocols() []p2p.Protocol { return nil } |
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func (s *NoopService) Start(*p2p.Server) error { return nil } |
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func (s *NoopService) Stop() error { return nil } |
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func NewNoopService(*ServiceContext) (Service, error) { return new(NoopService), nil } |
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// Tests whether services can be registered and unregistered.
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// Tests whether services can be registered and duplicates caught.
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func TestServiceRegistry(t *testing.T) { |
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stack, err := New(testNodeConfig) |
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if err != nil { |
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t.Fatalf("failed to create protocol stack: %v", err) |
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} |
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// Create a batch of dummy services and ensure they don't exist
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ids := []string{"A", "B", "C"} |
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for i, id := range ids { |
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if err := stack.Unregister(id); err != ErrServiceUnknown { |
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t.Fatalf("service %d: pre-unregistration failure mismatch: have %v, want %v", i, err, ErrServiceUnknown) |
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// Register a batch of unique services and ensure they start successfully
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services := []ServiceConstructor{NewNoopServiceA, NewNoopServiceB, NewNoopServiceC} |
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for i, constructor := range services { |
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if err := stack.Register(constructor); err != nil { |
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t.Fatalf("service #%d: registration failed: %v", i, err) |
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} |
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} |
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// Register the services, checking that the operation succeeds only once
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for i, id := range ids { |
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if err := stack.Register(id, NewNoopService); err != nil { |
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t.Fatalf("service %d: registration failed: %v", i, err) |
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} |
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if err := stack.Register(id, NewNoopService); err != ErrServiceRegistered { |
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t.Fatalf("service %d: registration failure mismatch: have %v, want %v", i, err, ErrServiceRegistered) |
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} |
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} |
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// Unregister the services, checking that the operation succeeds only once
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for i, id := range ids { |
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if err := stack.Unregister(id); err != nil { |
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t.Fatalf("service %d: unregistration failed: %v", i, err) |
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} |
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if err := stack.Unregister(id); err != ErrServiceUnknown { |
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t.Fatalf("service %d: unregistration failure mismatch: have %v, want %v", i, err, ErrServiceUnknown) |
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} |
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if err := stack.Start(); err != nil { |
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t.Fatalf("failed to start original service stack: %v", err) |
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} |
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} |
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// InstrumentedService is an implementation of Service for which all interface
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// methods can be instrumented both return value as well as event hook wise.
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type InstrumentedService struct { |
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protocols []p2p.Protocol |
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start error |
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stop error |
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protocolsHook func() |
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startHook func(*p2p.Server) |
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stopHook func() |
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} |
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func (s *InstrumentedService) Protocols() []p2p.Protocol { |
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if s.protocolsHook != nil { |
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s.protocolsHook() |
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if err := stack.Stop(); err != nil { |
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t.Fatalf("failed to stop original service stack: %v", err) |
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} |
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return s.protocols |
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} |
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func (s *InstrumentedService) Start(server *p2p.Server) error { |
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if s.startHook != nil { |
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s.startHook(server) |
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// Duplicate one of the services and retry starting the node
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if err := stack.Register(NewNoopServiceB); err != nil { |
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t.Fatalf("duplicate registration failed: %v", err) |
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} |
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return s.start |
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} |
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func (s *InstrumentedService) Stop() error { |
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if s.stopHook != nil { |
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s.stopHook() |
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if err := stack.Start(); err == nil { |
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t.Fatalf("duplicate service started") |
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} else { |
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if _, ok := err.(*DuplicateServiceError); !ok { |
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t.Fatalf("duplicate error mismatch: have %v, want %v", err, DuplicateServiceError{}) |
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} |
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} |
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return s.stop |
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} |
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// Tests that registered services get started and stopped correctly.
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@ -180,12 +138,15 @@ func TestServiceLifeCycle(t *testing.T) { |
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t.Fatalf("failed to create protocol stack: %v", err) |
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} |
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// Register a batch of life-cycle instrumented services
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ids := []string{"A", "B", "C"} |
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services := map[string]InstrumentingWrapper{ |
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"A": InstrumentedServiceMakerA, |
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"B": InstrumentedServiceMakerB, |
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"C": InstrumentedServiceMakerC, |
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} |
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started := make(map[string]bool) |
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stopped := make(map[string]bool) |
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for i, id := range ids { |
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for id, maker := range services { |
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id := id // Closure for the constructor
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constructor := func(*ServiceContext) (Service, error) { |
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return &InstrumentedService{ |
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@ -193,35 +154,29 @@ func TestServiceLifeCycle(t *testing.T) { |
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stopHook: func() { stopped[id] = true }, |
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}, nil |
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} |
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if err := stack.Register(id, constructor); err != nil { |
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t.Fatalf("service %d: registration failed: %v", i, err) |
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if err := stack.Register(maker(constructor)); err != nil { |
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t.Fatalf("service %s: registration failed: %v", id, err) |
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} |
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} |
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// Start the node and check that all services are running
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if err := stack.Start(); err != nil { |
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t.Fatalf("failed to start protocol stack: %v", err) |
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} |
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for i, id := range ids { |
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for id, _ := range services { |
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if !started[id] { |
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t.Fatalf("service %d: freshly started service not running", i) |
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t.Fatalf("service %s: freshly started service not running", id) |
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} |
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if stopped[id] { |
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t.Fatalf("service %d: freshly started service already stopped", i) |
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} |
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if stack.Service(id) == nil { |
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t.Fatalf("service %d: freshly started service unaccessible", i) |
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t.Fatalf("service %s: freshly started service already stopped", id) |
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} |
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} |
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// Stop the node and check that all services have been stopped
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if err := stack.Stop(); err != nil { |
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t.Fatalf("failed to stop protocol stack: %v", err) |
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} |
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for i, id := range ids { |
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for id, _ := range services { |
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if !stopped[id] { |
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t.Fatalf("service %d: freshly terminated service still running", i) |
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} |
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if service := stack.Service(id); service != nil { |
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t.Fatalf("service %d: freshly terminated service still accessible: %v", i, service) |
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t.Fatalf("service %s: freshly terminated service still running", id) |
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} |
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} |
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} |
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@ -251,7 +206,7 @@ func TestServiceRestarts(t *testing.T) { |
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}, nil |
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} |
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// Register the service and start the protocol stack
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if err := stack.Register("service", constructor); err != nil { |
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if err := stack.Register(constructor); err != nil { |
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t.Fatalf("failed to register the service: %v", err) |
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} |
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if err := stack.Start(); err != nil { |
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@ -281,18 +236,21 @@ func TestServiceConstructionAbortion(t *testing.T) { |
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t.Fatalf("failed to create protocol stack: %v", err) |
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} |
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// Define a batch of good services
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ids := []string{"A", "B", "C", "D", "E", "F"} |
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services := map[string]InstrumentingWrapper{ |
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"A": InstrumentedServiceMakerA, |
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"B": InstrumentedServiceMakerB, |
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"C": InstrumentedServiceMakerC, |
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} |
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started := make(map[string]bool) |
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for i, id := range ids { |
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for id, maker := range services { |
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id := id // Closure for the constructor
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constructor := func(*ServiceContext) (Service, error) { |
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return &InstrumentedService{ |
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startHook: func(*p2p.Server) { started[id] = true }, |
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}, nil |
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} |
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if err := stack.Register(id, constructor); err != nil { |
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t.Fatalf("service %d: registration failed: %v", i, err) |
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if err := stack.Register(maker(constructor)); err != nil { |
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t.Fatalf("service %s: registration failed: %v", id, err) |
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} |
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} |
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// Register a service that fails to construct itself
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@ -300,7 +258,7 @@ func TestServiceConstructionAbortion(t *testing.T) { |
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failer := func(*ServiceContext) (Service, error) { |
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return nil, failure |
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} |
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if err := stack.Register("failer", failer); err != nil { |
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if err := stack.Register(failer); err != nil { |
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t.Fatalf("failer registration failed: %v", err) |
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} |
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// Start the protocol stack and ensure none of the services get started
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@ -308,9 +266,9 @@ func TestServiceConstructionAbortion(t *testing.T) { |
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if err := stack.Start(); err != failure { |
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t.Fatalf("iter %d: stack startup failure mismatch: have %v, want %v", i, err, failure) |
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} |
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for i, id := range ids { |
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for id, _ := range services { |
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if started[id] { |
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t.Fatalf("service %d: started should not have", i) |
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t.Fatalf("service %s: started should not have", id) |
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} |
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delete(started, id) |
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} |
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@ -325,12 +283,15 @@ func TestServiceStartupAbortion(t *testing.T) { |
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t.Fatalf("failed to create protocol stack: %v", err) |
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} |
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// Register a batch of good services
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ids := []string{"A", "B", "C", "D", "E", "F"} |
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services := map[string]InstrumentingWrapper{ |
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"A": InstrumentedServiceMakerA, |
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"B": InstrumentedServiceMakerB, |
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"C": InstrumentedServiceMakerC, |
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} |
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started := make(map[string]bool) |
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stopped := make(map[string]bool) |
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for i, id := range ids { |
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for id, maker := range services { |
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id := id // Closure for the constructor
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constructor := func(*ServiceContext) (Service, error) { |
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return &InstrumentedService{ |
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@ -338,8 +299,8 @@ func TestServiceStartupAbortion(t *testing.T) { |
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stopHook: func() { stopped[id] = true }, |
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}, nil |
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} |
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if err := stack.Register(id, constructor); err != nil { |
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t.Fatalf("service %d: registration failed: %v", i, err) |
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if err := stack.Register(maker(constructor)); err != nil { |
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t.Fatalf("service %s: registration failed: %v", id, err) |
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} |
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} |
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// Register a service that fails to start
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@ -349,7 +310,7 @@ func TestServiceStartupAbortion(t *testing.T) { |
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start: failure, |
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}, nil |
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} |
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if err := stack.Register("failer", failer); err != nil { |
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if err := stack.Register(failer); err != nil { |
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t.Fatalf("failer registration failed: %v", err) |
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} |
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// Start the protocol stack and ensure all started services stop
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@ -357,9 +318,9 @@ func TestServiceStartupAbortion(t *testing.T) { |
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if err := stack.Start(); err != failure { |
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t.Fatalf("iter %d: stack startup failure mismatch: have %v, want %v", i, err, failure) |
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} |
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for i, id := range ids { |
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for id, _ := range services { |
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if started[id] && !stopped[id] { |
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t.Fatalf("service %d: started but not stopped", i) |
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t.Fatalf("service %s: started but not stopped", id) |
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} |
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delete(started, id) |
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delete(stopped, id) |
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@ -375,12 +336,15 @@ func TestServiceTerminationGuarantee(t *testing.T) { |
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t.Fatalf("failed to create protocol stack: %v", err) |
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} |
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// Register a batch of good services
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ids := []string{"A", "B", "C", "D", "E", "F"} |
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services := map[string]InstrumentingWrapper{ |
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"A": InstrumentedServiceMakerA, |
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"B": InstrumentedServiceMakerB, |
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"C": InstrumentedServiceMakerC, |
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} |
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started := make(map[string]bool) |
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stopped := make(map[string]bool) |
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for i, id := range ids { |
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for id, maker := range services { |
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id := id // Closure for the constructor
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constructor := func(*ServiceContext) (Service, error) { |
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return &InstrumentedService{ |
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@ -388,8 +352,8 @@ func TestServiceTerminationGuarantee(t *testing.T) { |
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stopHook: func() { stopped[id] = true }, |
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}, nil |
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} |
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if err := stack.Register(id, constructor); err != nil { |
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t.Fatalf("service %d: registration failed: %v", i, err) |
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if err := stack.Register(maker(constructor)); err != nil { |
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t.Fatalf("service %s: registration failed: %v", id, err) |
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} |
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} |
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// Register a service that fails to shot down cleanly
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@ -399,7 +363,7 @@ func TestServiceTerminationGuarantee(t *testing.T) { |
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stop: failure, |
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}, nil |
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} |
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if err := stack.Register("failer", failer); err != nil { |
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if err := stack.Register(failer); err != nil { |
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t.Fatalf("failer registration failed: %v", err) |
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} |
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// Start the protocol stack, and ensure that a failing shut down terminates all
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@ -408,12 +372,12 @@ func TestServiceTerminationGuarantee(t *testing.T) { |
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if err := stack.Start(); err != nil { |
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t.Fatalf("iter %d: failed to start protocol stack: %v", i, err) |
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} |
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for j, id := range ids { |
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for id, _ := range services { |
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if !started[id] { |
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t.Fatalf("iter %d, service %d: service not running", i, j) |
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t.Fatalf("iter %d, service %s: service not running", i, id) |
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} |
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if stopped[id] { |
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t.Fatalf("iter %d, service %d: service already stopped", i, j) |
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t.Fatalf("iter %d, service %s: service already stopped", i, id) |
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} |
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} |
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// Stop the stack, verify failure and check all terminations
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@ -421,16 +385,17 @@ func TestServiceTerminationGuarantee(t *testing.T) { |
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if err, ok := err.(*StopError); !ok { |
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t.Fatalf("iter %d: termination failure mismatch: have %v, want StopError", i, err) |
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} else { |
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if err.Services["failer"] != failure { |
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t.Fatalf("iter %d: failer termination failure mismatch: have %v, want %v", i, err.Services["failer"], failure) |
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failer := reflect.TypeOf(&InstrumentedService{}) |
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if err.Services[failer] != failure { |
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t.Fatalf("iter %d: failer termination failure mismatch: have %v, want %v", i, err.Services[failer], failure) |
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} |
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if len(err.Services) != 1 { |
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t.Fatalf("iter %d: failure count mismatch: have %d, want %d", i, len(err.Services), 1) |
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} |
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} |
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for j, id := range ids { |
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for id, _ := range services { |
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|
if !stopped[id] { |
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|
t.Fatalf("iter %d, service %d: service not terminated", i, j) |
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|
t.Fatalf("iter %d, service %s: service not terminated", i, id) |
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} |
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delete(started, id) |
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delete(stopped, id) |
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@ -438,27 +403,27 @@ func TestServiceTerminationGuarantee(t *testing.T) { |
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|
} |
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} |
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// TestSingletonServiceRetrieval tests that singleton services can be retrieved.
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|
|
func TestSingletonServiceRetrieval(t *testing.T) { |
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|
// TestServiceRetrieval tests that individual services can be retrieved.
|
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|
|
|
func TestServiceRetrieval(t *testing.T) { |
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|
|
// Create a simple stack and register two service types
|
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|
|
|
stack, err := New(testNodeConfig) |
|
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|
|
if err != nil { |
|
|
|
|
t.Fatalf("failed to create protocol stack: %v", err) |
|
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|
|
} |
|
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|
|
if err := stack.Register("noop", func(*ServiceContext) (Service, error) { return new(NoopService), nil }); err != nil { |
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|
|
if err := stack.Register(NewNoopService); err != nil { |
|
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|
|
t.Fatalf("noop service registration failed: %v", err) |
|
|
|
|
} |
|
|
|
|
if err := stack.Register("instrumented", func(*ServiceContext) (Service, error) { return new(InstrumentedService), nil }); err != nil { |
|
|
|
|
if err := stack.Register(NewInstrumentedService); err != nil { |
|
|
|
|
t.Fatalf("instrumented service registration failed: %v", err) |
|
|
|
|
} |
|
|
|
|
// Make sure none of the services can be retrieved until started
|
|
|
|
|
var noopServ *NoopService |
|
|
|
|
if id, err := stack.SingletonService(&noopServ); id != "" || err != ErrServiceUnknown { |
|
|
|
|
t.Fatalf("noop service retrieval mismatch: have %v/%v, want %v/%v", id, err, "", ErrServiceUnknown) |
|
|
|
|
if err := stack.Service(&noopServ); err != ErrNodeStopped { |
|
|
|
|
t.Fatalf("noop service retrieval mismatch: have %v, want %v", err, ErrNodeStopped) |
|
|
|
|
} |
|
|
|
|
var instServ *InstrumentedService |
|
|
|
|
if id, err := stack.SingletonService(&instServ); id != "" || err != ErrServiceUnknown { |
|
|
|
|
t.Fatalf("instrumented service retrieval mismatch: have %v/%v, want %v/%v", id, err, "", ErrServiceUnknown) |
|
|
|
|
if err := stack.Service(&instServ); err != ErrNodeStopped { |
|
|
|
|
t.Fatalf("instrumented service retrieval mismatch: have %v, want %v", err, ErrNodeStopped) |
|
|
|
|
} |
|
|
|
|
// Start the stack and ensure everything is retrievable now
|
|
|
|
|
if err := stack.Start(); err != nil { |
|
|
|
|
@ -466,11 +431,11 @@ func TestSingletonServiceRetrieval(t *testing.T) { |
|
|
|
|
} |
|
|
|
|
defer stack.Stop() |
|
|
|
|
|
|
|
|
|
if id, err := stack.SingletonService(&noopServ); id != "noop" || err != nil { |
|
|
|
|
t.Fatalf("noop service retrieval mismatch: have %v/%v, want %v/%v", id, err, "noop", nil) |
|
|
|
|
if err := stack.Service(&noopServ); err != nil { |
|
|
|
|
t.Fatalf("noop service retrieval mismatch: have %v, want %v", err, nil) |
|
|
|
|
} |
|
|
|
|
if id, err := stack.SingletonService(&instServ); id != "instrumented" || err != nil { |
|
|
|
|
t.Fatalf("instrumented service retrieval mismatch: have %v/%v, want %v/%v", id, err, "instrumented", nil) |
|
|
|
|
if err := stack.Service(&instServ); err != nil { |
|
|
|
|
t.Fatalf("instrumented service retrieval mismatch: have %v, want %v", err, nil) |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
@ -481,13 +446,16 @@ func TestProtocolGather(t *testing.T) { |
|
|
|
|
t.Fatalf("failed to create protocol stack: %v", err) |
|
|
|
|
} |
|
|
|
|
// Register a batch of services with some configured number of protocols
|
|
|
|
|
services := map[string]int{ |
|
|
|
|
"Zero Protocols": 0, |
|
|
|
|
"Single Protocol": 1, |
|
|
|
|
"Many Protocols": 25, |
|
|
|
|
} |
|
|
|
|
for id, count := range services { |
|
|
|
|
protocols := make([]p2p.Protocol, count) |
|
|
|
|
services := map[string]struct { |
|
|
|
|
Count int |
|
|
|
|
Maker InstrumentingWrapper |
|
|
|
|
}{ |
|
|
|
|
"Zero Protocols": {0, InstrumentedServiceMakerA}, |
|
|
|
|
"Single Protocol": {1, InstrumentedServiceMakerB}, |
|
|
|
|
"Many Protocols": {25, InstrumentedServiceMakerC}, |
|
|
|
|
} |
|
|
|
|
for id, config := range services { |
|
|
|
|
protocols := make([]p2p.Protocol, config.Count) |
|
|
|
|
for i := 0; i < len(protocols); i++ { |
|
|
|
|
protocols[i].Name = id |
|
|
|
|
protocols[i].Version = uint(i) |
|
|
|
|
@ -497,7 +465,7 @@ func TestProtocolGather(t *testing.T) { |
|
|
|
|
protocols: protocols, |
|
|
|
|
}, nil |
|
|
|
|
} |
|
|
|
|
if err := stack.Register(id, constructor); err != nil { |
|
|
|
|
if err := stack.Register(config.Maker(constructor)); err != nil { |
|
|
|
|
t.Fatalf("service %s: registration failed: %v", id, err) |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
@ -511,8 +479,8 @@ func TestProtocolGather(t *testing.T) { |
|
|
|
|
if len(protocols) != 26 { |
|
|
|
|
t.Fatalf("mismatching number of protocols launched: have %d, want %d", len(protocols), 26) |
|
|
|
|
} |
|
|
|
|
for id, count := range services { |
|
|
|
|
for ver := 0; ver < count; ver++ { |
|
|
|
|
for id, config := range services { |
|
|
|
|
for ver := 0; ver < config.Count; ver++ { |
|
|
|
|
launched := false |
|
|
|
|
for i := 0; i < len(protocols); i++ { |
|
|
|
|
if protocols[i].Name == id && protocols[i].Version == uint(ver) { |
|
|
|
|
|
Péter Szilágyi
9 years ago