Example #1
0
func TestGossipGetNextBootstrapAddress(t *testing.T) {
	defer leaktest.AfterTest(t)()
	defer resolver.SetLookupTimeout(time.Minute)()

	// Set up an http server for testing the http load balancer.
	i := 0
	handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		i++
		fmt.Fprintf(w, `{"address": {"network": "tcp", "address": "10.10.0.%d:12345"}}`, i)
	})
	s := httptest.NewServer(handler)
	defer s.Close()

	resolverSpecs := []string{
		"127.0.0.1:9000",
		"tcp=127.0.0.1:9001",
		"unix=/tmp/unix-socket12345",
		fmt.Sprintf("http-lb=%s", s.Listener.Addr()),
		"foo=127.0.0.1:9003", // error should not resolve.
		"http-lb=",           // error should not resolve.
		"localhost:9004",
	}

	resolvers := []resolver.Resolver{}
	for _, rs := range resolverSpecs {
		resolver, err := resolver.NewResolver(&base.Context{Insecure: true}, rs)
		if err == nil {
			resolvers = append(resolvers, resolver)
		}
	}
	if len(resolvers) != 5 {
		t.Errorf("expected 5 resolvers; got %d", len(resolvers))
	}
	g := New(nil, resolvers, nil)

	// Using specified resolvers, fetch bootstrap addresses 10 times
	// and verify the results match expected addresses.
	expAddresses := []string{
		"127.0.0.1:9000",
		"127.0.0.1:9001",
		"/tmp/unix-socket12345",
		"10.10.0.1:12345",
		"localhost:9004",
		"10.10.0.2:12345",
		"10.10.0.3:12345",
		"10.10.0.4:12345",
		"10.10.0.5:12345",
		"10.10.0.6:12345",
	}
	for i := 0; i < len(expAddresses); i++ {
		if addr := g.getNextBootstrapAddress(); addr == nil {
			t.Errorf("%d: unexpected nil addr when expecting %s", i, expAddresses[i])
		} else if addrStr := addr.String(); addrStr != expAddresses[i] {
			t.Errorf("%d: expected addr %s; got %s", i, expAddresses[i], addrStr)
		}
	}
}
Example #2
0
func TestGossipGetNextBootstrapAddress(t *testing.T) {
	defer leaktest.AfterTest(t)()
	defer resolver.SetLookupTimeout(time.Minute)()

	resolverSpecs := []string{
		"127.0.0.1:9000",
		"127.0.0.1:9001",
		"localhost:9004",
	}

	resolvers := []resolver.Resolver{}
	for _, rs := range resolverSpecs {
		resolver, err := resolver.NewResolver(&base.Context{Insecure: true}, rs)
		if err == nil {
			resolvers = append(resolvers, resolver)
		}
	}
	if len(resolvers) != 3 {
		t.Errorf("expected 3 resolvers; got %d", len(resolvers))
	}
	g := New(nil, resolvers, nil)

	// Using specified resolvers, fetch bootstrap addresses 3 times
	// and verify the results match expected addresses.
	expAddresses := []string{
		"127.0.0.1:9000",
		"127.0.0.1:9001",
		"localhost:9004",
	}
	for i := 0; i < len(expAddresses); i++ {
		if addr := g.getNextBootstrapAddress(); addr == nil {
			t.Errorf("%d: unexpected nil addr when expecting %s", i, expAddresses[i])
		} else if addrStr := addr.String(); addrStr != expAddresses[i] {
			t.Errorf("%d: expected addr %s; got %s", i, expAddresses[i], addrStr)
		}
	}
}