package links // import "github.com/docker/docker/daemon/links" import ( "fmt" "strconv" "strings" "testing" "github.com/docker/go-connections/nat" ) // Just to make life easier func newPortNoError(proto, port string) nat.Port { p, _ := nat.NewPort(proto, port) return p } func TestLinkNaming(t *testing.T) { ports := make(nat.PortSet) ports[newPortNoError("tcp", "6379")] = struct{}{} link := NewLink("172.0.17.3", "172.0.17.2", "/db/docker-1", nil, ports) rawEnv := link.ToEnv() env := make(map[string]string, len(rawEnv)) for _, e := range rawEnv { parts := strings.Split(e, "=") if len(parts) != 2 { t.FailNow() } env[parts[0]] = parts[1] } value, ok := env["DOCKER_1_PORT"] if !ok { t.Fatal("DOCKER_1_PORT not found in env") } if value != "tcp://172.0.17.2:6379" { t.Fatalf("Expected 172.0.17.2:6379, got %s", env["DOCKER_1_PORT"]) } } func TestLinkNew(t *testing.T) { ports := make(nat.PortSet) ports[newPortNoError("tcp", "6379")] = struct{}{} link := NewLink("172.0.17.3", "172.0.17.2", "/db/docker", nil, ports) if link.Name != "/db/docker" { t.Fail() } if link.ParentIP != "172.0.17.3" { t.Fail() } if link.ChildIP != "172.0.17.2" { t.Fail() } for _, p := range link.Ports { if p != newPortNoError("tcp", "6379") { t.Fail() } } } func TestLinkEnv(t *testing.T) { ports := make(nat.PortSet) ports[newPortNoError("tcp", "6379")] = struct{}{} link := NewLink("172.0.17.3", "172.0.17.2", "/db/docker", []string{"PASSWORD=gordon"}, ports) rawEnv := link.ToEnv() env := make(map[string]string, len(rawEnv)) for _, e := range rawEnv { parts := strings.Split(e, "=") if len(parts) != 2 { t.FailNow() } env[parts[0]] = parts[1] } if env["DOCKER_PORT"] != "tcp://172.0.17.2:6379" { t.Fatalf("Expected 172.0.17.2:6379, got %s", env["DOCKER_PORT"]) } if env["DOCKER_PORT_6379_TCP"] != "tcp://172.0.17.2:6379" { t.Fatalf("Expected tcp://172.0.17.2:6379, got %s", env["DOCKER_PORT_6379_TCP"]) } if env["DOCKER_PORT_6379_TCP_PROTO"] != "tcp" { t.Fatalf("Expected tcp, got %s", env["DOCKER_PORT_6379_TCP_PROTO"]) } if env["DOCKER_PORT_6379_TCP_ADDR"] != "172.0.17.2" { t.Fatalf("Expected 172.0.17.2, got %s", env["DOCKER_PORT_6379_TCP_ADDR"]) } if env["DOCKER_PORT_6379_TCP_PORT"] != "6379" { t.Fatalf("Expected 6379, got %s", env["DOCKER_PORT_6379_TCP_PORT"]) } if env["DOCKER_NAME"] != "/db/docker" { t.Fatalf("Expected /db/docker, got %s", env["DOCKER_NAME"]) } if env["DOCKER_ENV_PASSWORD"] != "gordon" { t.Fatalf("Expected gordon, got %s", env["DOCKER_ENV_PASSWORD"]) } } func TestLinkMultipleEnv(t *testing.T) { ports := make(nat.PortSet) ports[newPortNoError("tcp", "6379")] = struct{}{} ports[newPortNoError("tcp", "6380")] = struct{}{} ports[newPortNoError("tcp", "6381")] = struct{}{} link := NewLink("172.0.17.3", "172.0.17.2", "/db/docker", []string{"PASSWORD=gordon"}, ports) rawEnv := link.ToEnv() env := make(map[string]string, len(rawEnv)) for _, e := range rawEnv { parts := strings.Split(e, "=") if len(parts) != 2 { t.FailNow() } env[parts[0]] = parts[1] } if env["DOCKER_PORT"] != "tcp://172.0.17.2:6379" { t.Fatalf("Expected 172.0.17.2:6379, got %s", env["DOCKER_PORT"]) } if env["DOCKER_PORT_6379_TCP_START"] != "tcp://172.0.17.2:6379" { t.Fatalf("Expected tcp://172.0.17.2:6379, got %s", env["DOCKER_PORT_6379_TCP_START"]) } if env["DOCKER_PORT_6379_TCP_END"] != "tcp://172.0.17.2:6381" { t.Fatalf("Expected tcp://172.0.17.2:6381, got %s", env["DOCKER_PORT_6379_TCP_END"]) } if env["DOCKER_PORT_6379_TCP_PROTO"] != "tcp" { t.Fatalf("Expected tcp, got %s", env["DOCKER_PORT_6379_TCP_PROTO"]) } if env["DOCKER_PORT_6379_TCP_ADDR"] != "172.0.17.2" { t.Fatalf("Expected 172.0.17.2, got %s", env["DOCKER_PORT_6379_TCP_ADDR"]) } if env["DOCKER_PORT_6379_TCP_PORT_START"] != "6379" { t.Fatalf("Expected 6379, got %s", env["DOCKER_PORT_6379_TCP_PORT_START"]) } if env["DOCKER_PORT_6379_TCP_PORT_END"] != "6381" { t.Fatalf("Expected 6381, got %s", env["DOCKER_PORT_6379_TCP_PORT_END"]) } if env["DOCKER_NAME"] != "/db/docker" { t.Fatalf("Expected /db/docker, got %s", env["DOCKER_NAME"]) } if env["DOCKER_ENV_PASSWORD"] != "gordon" { t.Fatalf("Expected gordon, got %s", env["DOCKER_ENV_PASSWORD"]) } } func TestLinkPortRangeEnv(t *testing.T) { ports := make(nat.PortSet) ports[newPortNoError("tcp", "6379")] = struct{}{} ports[newPortNoError("tcp", "6380")] = struct{}{} ports[newPortNoError("tcp", "6381")] = struct{}{} link := NewLink("172.0.17.3", "172.0.17.2", "/db/docker", []string{"PASSWORD=gordon"}, ports) rawEnv := link.ToEnv() env := make(map[string]string, len(rawEnv)) for _, e := range rawEnv { parts := strings.Split(e, "=") if len(parts) != 2 { t.FailNow() } env[parts[0]] = parts[1] } if env["DOCKER_PORT"] != "tcp://172.0.17.2:6379" { t.Fatalf("Expected 172.0.17.2:6379, got %s", env["DOCKER_PORT"]) } if env["DOCKER_PORT_6379_TCP_START"] != "tcp://172.0.17.2:6379" { t.Fatalf("Expected tcp://172.0.17.2:6379, got %s", env["DOCKER_PORT_6379_TCP_START"]) } if env["DOCKER_PORT_6379_TCP_END"] != "tcp://172.0.17.2:6381" { t.Fatalf("Expected tcp://172.0.17.2:6381, got %s", env["DOCKER_PORT_6379_TCP_END"]) } if env["DOCKER_PORT_6379_TCP_PROTO"] != "tcp" { t.Fatalf("Expected tcp, got %s", env["DOCKER_PORT_6379_TCP_PROTO"]) } if env["DOCKER_PORT_6379_TCP_ADDR"] != "172.0.17.2" { t.Fatalf("Expected 172.0.17.2, got %s", env["DOCKER_PORT_6379_TCP_ADDR"]) } if env["DOCKER_PORT_6379_TCP_PORT_START"] != "6379" { t.Fatalf("Expected 6379, got %s", env["DOCKER_PORT_6379_TCP_PORT_START"]) } if env["DOCKER_PORT_6379_TCP_PORT_END"] != "6381" { t.Fatalf("Expected 6381, got %s", env["DOCKER_PORT_6379_TCP_PORT_END"]) } if env["DOCKER_NAME"] != "/db/docker" { t.Fatalf("Expected /db/docker, got %s", env["DOCKER_NAME"]) } if env["DOCKER_ENV_PASSWORD"] != "gordon" { t.Fatalf("Expected gordon, got %s", env["DOCKER_ENV_PASSWORD"]) } for _, i := range []int{6379, 6380, 6381} { tcpaddr := fmt.Sprintf("DOCKER_PORT_%d_TCP_ADDR", i) tcpport := fmt.Sprintf("DOCKER_PORT_%d_TCP_PORT", i) tcpproto := fmt.Sprintf("DOCKER_PORT_%d_TCP_PROTO", i) tcp := fmt.Sprintf("DOCKER_PORT_%d_TCP", i) if env[tcpaddr] != "172.0.17.2" { t.Fatalf("Expected env %s = 172.0.17.2, got %s", tcpaddr, env[tcpaddr]) } if env[tcpport] != strconv.Itoa(i) { t.Fatalf("Expected env %s = %d, got %s", tcpport, i, env[tcpport]) } if env[tcpproto] != "tcp" { t.Fatalf("Expected env %s = tcp, got %s", tcpproto, env[tcpproto]) } if env[tcp] != fmt.Sprintf("tcp://172.0.17.2:%d", i) { t.Fatalf("Expected env %s = tcp://172.0.17.2:%d, got %s", tcp, i, env[tcp]) } } }