package runconfig import ( "bytes" "fmt" "io/ioutil" "strings" "testing" "github.com/docker/docker/nat" ) func parse(t *testing.T, args string) (*Config, *HostConfig, error) { config, hostConfig, _, err := parseRun(strings.Split(args+" ubuntu bash", " ")) return config, hostConfig, err } func mustParse(t *testing.T, args string) (*Config, *HostConfig) { config, hostConfig, err := parse(t, args) if err != nil { t.Fatal(err) } return config, hostConfig } // check if (a == c && b == d) || (a == d && b == c) // because maps are randomized func compareRandomizedStrings(a, b, c, d string) error { if a == c && b == d { return nil } if a == d && b == c { return nil } return fmt.Errorf("strings don't match") } func TestParseRunLinks(t *testing.T) { if _, hostConfig := mustParse(t, "--link a:b"); len(hostConfig.Links) == 0 || hostConfig.Links[0] != "a:b" { t.Fatalf("Error parsing links. Expected []string{\"a:b\"}, received: %v", hostConfig.Links) } if _, hostConfig := mustParse(t, "--link a:b --link c:d"); len(hostConfig.Links) < 2 || hostConfig.Links[0] != "a:b" || hostConfig.Links[1] != "c:d" { t.Fatalf("Error parsing links. Expected []string{\"a:b\", \"c:d\"}, received: %v", hostConfig.Links) } if _, hostConfig := mustParse(t, ""); len(hostConfig.Links) != 0 { t.Fatalf("Error parsing links. No link expected, received: %v", hostConfig.Links) } } func TestParseRunAttach(t *testing.T) { if config, _ := mustParse(t, "-a stdin"); !config.AttachStdin || config.AttachStdout || config.AttachStderr { t.Fatalf("Error parsing attach flags. Expect only Stdin enabled. Received: in: %v, out: %v, err: %v", config.AttachStdin, config.AttachStdout, config.AttachStderr) } if config, _ := mustParse(t, "-a stdin -a stdout"); !config.AttachStdin || !config.AttachStdout || config.AttachStderr { t.Fatalf("Error parsing attach flags. Expect only Stdin and Stdout enabled. Received: in: %v, out: %v, err: %v", config.AttachStdin, config.AttachStdout, config.AttachStderr) } if config, _ := mustParse(t, "-a stdin -a stdout -a stderr"); !config.AttachStdin || !config.AttachStdout || !config.AttachStderr { t.Fatalf("Error parsing attach flags. Expect all attach enabled. Received: in: %v, out: %v, err: %v", config.AttachStdin, config.AttachStdout, config.AttachStderr) } if config, _ := mustParse(t, ""); config.AttachStdin || !config.AttachStdout || !config.AttachStderr { t.Fatalf("Error parsing attach flags. Expect Stdin disabled. Received: in: %v, out: %v, err: %v", config.AttachStdin, config.AttachStdout, config.AttachStderr) } if _, _, err := parse(t, "-a"); err == nil { t.Fatalf("Error parsing attach flags, `-a` should be an error but is not") } if _, _, err := parse(t, "-a invalid"); err == nil { t.Fatalf("Error parsing attach flags, `-a invalid` should be an error but is not") } if _, _, err := parse(t, "-a invalid -a stdout"); err == nil { t.Fatalf("Error parsing attach flags, `-a stdout -a invalid` should be an error but is not") } if _, _, err := parse(t, "-a stdout -a stderr -d"); err == nil { t.Fatalf("Error parsing attach flags, `-a stdout -a stderr -d` should be an error but is not") } if _, _, err := parse(t, "-a stdin -d"); err == nil { t.Fatalf("Error parsing attach flags, `-a stdin -d` should be an error but is not") } if _, _, err := parse(t, "-a stdout -d"); err == nil { t.Fatalf("Error parsing attach flags, `-a stdout -d` should be an error but is not") } if _, _, err := parse(t, "-a stderr -d"); err == nil { t.Fatalf("Error parsing attach flags, `-a stderr -d` should be an error but is not") } if _, _, err := parse(t, "-d --rm"); err == nil { t.Fatalf("Error parsing attach flags, `-d --rm` should be an error but is not") } } func TestParseRunVolumes(t *testing.T) { if config, hostConfig := mustParse(t, "-v /tmp"); hostConfig.Binds != nil { t.Fatalf("Error parsing volume flags, `-v /tmp` should not mount-bind anything. Received %v", hostConfig.Binds) } else if _, exists := config.Volumes["/tmp"]; !exists { t.Fatalf("Error parsing volume flags, `-v /tmp` is missing from volumes. Received %v", config.Volumes) } if config, hostConfig := mustParse(t, "-v /tmp -v /var"); hostConfig.Binds != nil { t.Fatalf("Error parsing volume flags, `-v /tmp -v /var` should not mount-bind anything. Received %v", hostConfig.Binds) } else if _, exists := config.Volumes["/tmp"]; !exists { t.Fatalf("Error parsing volume flags, `-v /tmp` is missing from volumes. Received %v", config.Volumes) } else if _, exists := config.Volumes["/var"]; !exists { t.Fatalf("Error parsing volume flags, `-v /var` is missing from volumes. Received %v", config.Volumes) } if _, hostConfig := mustParse(t, "-v /hostTmp:/containerTmp"); hostConfig.Binds == nil || hostConfig.Binds[0] != "/hostTmp:/containerTmp" { t.Fatalf("Error parsing volume flags, `-v /hostTmp:/containerTmp` should mount-bind /hostTmp into /containeTmp. Received %v", hostConfig.Binds) } if _, hostConfig := mustParse(t, "-v /hostTmp:/containerTmp -v /hostVar:/containerVar"); hostConfig.Binds == nil || compareRandomizedStrings(hostConfig.Binds[0], hostConfig.Binds[1], "/hostTmp:/containerTmp", "/hostVar:/containerVar") != nil { t.Fatalf("Error parsing volume flags, `-v /hostTmp:/containerTmp -v /hostVar:/containerVar` should mount-bind /hostTmp into /containeTmp and /hostVar into /hostContainer. Received %v", hostConfig.Binds) } if _, hostConfig := mustParse(t, "-v /hostTmp:/containerTmp:ro -v /hostVar:/containerVar:rw"); hostConfig.Binds == nil || compareRandomizedStrings(hostConfig.Binds[0], hostConfig.Binds[1], "/hostTmp:/containerTmp:ro", "/hostVar:/containerVar:rw") != nil { t.Fatalf("Error parsing volume flags, `-v /hostTmp:/containerTmp:ro -v /hostVar:/containerVar:rw` should mount-bind /hostTmp into /containeTmp and /hostVar into /hostContainer. Received %v", hostConfig.Binds) } if config, hostConfig := mustParse(t, "-v /hostTmp:/containerTmp -v /containerVar"); hostConfig.Binds == nil || len(hostConfig.Binds) > 1 || hostConfig.Binds[0] != "/hostTmp:/containerTmp" { t.Fatalf("Error parsing volume flags, `-v /hostTmp:/containerTmp -v /containerVar` should mount-bind only /hostTmp into /containeTmp. Received %v", hostConfig.Binds) } else if _, exists := config.Volumes["/containerVar"]; !exists { t.Fatalf("Error parsing volume flags, `-v /containerVar` is missing from volumes. Received %v", config.Volumes) } if config, hostConfig := mustParse(t, ""); hostConfig.Binds != nil { t.Fatalf("Error parsing volume flags, without volume, nothing should be mount-binded. Received %v", hostConfig.Binds) } else if len(config.Volumes) != 0 { t.Fatalf("Error parsing volume flags, without volume, no volume should be present. Received %v", config.Volumes) } if _, _, err := parse(t, "-v /"); err == nil { t.Fatalf("Expected error, but got none") } if _, _, err := parse(t, "-v /:/"); err == nil { t.Fatalf("Error parsing volume flags, `-v /:/` should fail but didn't") } if _, _, err := parse(t, "-v"); err == nil { t.Fatalf("Error parsing volume flags, `-v` should fail but didn't") } if _, _, err := parse(t, "-v /tmp:"); err == nil { t.Fatalf("Error parsing volume flags, `-v /tmp:` should fail but didn't") } if _, _, err := parse(t, "-v /tmp:ro"); err == nil { t.Fatalf("Error parsing volume flags, `-v /tmp:ro` should fail but didn't") } if _, _, err := parse(t, "-v /tmp::"); err == nil { t.Fatalf("Error parsing volume flags, `-v /tmp::` should fail but didn't") } if _, _, err := parse(t, "-v :"); err == nil { t.Fatalf("Error parsing volume flags, `-v :` should fail but didn't") } if _, _, err := parse(t, "-v ::"); err == nil { t.Fatalf("Error parsing volume flags, `-v ::` should fail but didn't") } if _, _, err := parse(t, "-v /tmp:/tmp:/tmp:/tmp"); err == nil { t.Fatalf("Error parsing volume flags, `-v /tmp:/tmp:/tmp:/tmp` should fail but didn't") } } func TestCompare(t *testing.T) { volumes1 := make(map[string]struct{}) volumes1["/test1"] = struct{}{} config1 := Config{ PortSpecs: []string{"1111:1111", "2222:2222"}, Env: []string{"VAR1=1", "VAR2=2"}, Volumes: volumes1, } config3 := Config{ PortSpecs: []string{"0000:0000", "2222:2222"}, Env: []string{"VAR1=1", "VAR2=2"}, Volumes: volumes1, } volumes2 := make(map[string]struct{}) volumes2["/test2"] = struct{}{} config5 := Config{ PortSpecs: []string{"0000:0000", "2222:2222"}, Env: []string{"VAR1=1", "VAR2=2"}, Volumes: volumes2, } if Compare(&config1, &config3) { t.Fatalf("Compare should return false, PortSpecs are different") } if Compare(&config1, &config5) { t.Fatalf("Compare should return false, Volumes are different") } if !Compare(&config1, &config1) { t.Fatalf("Compare should return true") } } func TestMerge(t *testing.T) { volumesImage := make(map[string]struct{}) volumesImage["/test1"] = struct{}{} volumesImage["/test2"] = struct{}{} configImage := &Config{ PortSpecs: []string{"1111:1111", "2222:2222"}, Env: []string{"VAR1=1", "VAR2=2"}, Volumes: volumesImage, } volumesUser := make(map[string]struct{}) volumesUser["/test3"] = struct{}{} configUser := &Config{ PortSpecs: []string{"3333:2222", "3333:3333"}, Env: []string{"VAR2=3", "VAR3=3"}, Volumes: volumesUser, } if err := Merge(configUser, configImage); err != nil { t.Error(err) } if len(configUser.ExposedPorts) != 3 { t.Fatalf("Expected 3 ExposedPorts, 1111, 2222 and 3333, found %d", len(configUser.ExposedPorts)) } for portSpecs := range configUser.ExposedPorts { if portSpecs.Port() != "1111" && portSpecs.Port() != "2222" && portSpecs.Port() != "3333" { t.Fatalf("Expected 1111 or 2222 or 3333, found %s", portSpecs) } } if len(configUser.Env) != 3 { t.Fatalf("Expected 3 env var, VAR1=1, VAR2=3 and VAR3=3, found %d", len(configUser.Env)) } for _, env := range configUser.Env { if env != "VAR1=1" && env != "VAR2=3" && env != "VAR3=3" { t.Fatalf("Expected VAR1=1 or VAR2=3 or VAR3=3, found %s", env) } } if len(configUser.Volumes) != 3 { t.Fatalf("Expected 3 volumes, /test1, /test2 and /test3, found %d", len(configUser.Volumes)) } for v := range configUser.Volumes { if v != "/test1" && v != "/test2" && v != "/test3" { t.Fatalf("Expected /test1 or /test2 or /test3, found %s", v) } } ports, _, err := nat.ParsePortSpecs([]string{"0000"}) if err != nil { t.Error(err) } configImage2 := &Config{ ExposedPorts: ports, } if err := Merge(configUser, configImage2); err != nil { t.Error(err) } if len(configUser.ExposedPorts) != 4 { t.Fatalf("Expected 4 ExposedPorts, 0000, 1111, 2222 and 3333, found %d", len(configUser.ExposedPorts)) } for portSpecs := range configUser.ExposedPorts { if portSpecs.Port() != "0" && portSpecs.Port() != "1111" && portSpecs.Port() != "2222" && portSpecs.Port() != "3333" { t.Fatalf("Expected %q or %q or %q or %q, found %s", 0, 1111, 2222, 3333, portSpecs) } } } func TestDecodeContainerConfig(t *testing.T) { fixtures := []struct { file string entrypoint *Entrypoint }{ {"fixtures/container_config_1_14.json", NewEntrypoint()}, {"fixtures/container_config_1_17.json", NewEntrypoint("bash")}, {"fixtures/container_config_1_19.json", NewEntrypoint("bash")}, } for _, f := range fixtures { b, err := ioutil.ReadFile(f.file) if err != nil { t.Fatal(err) } c, h, err := DecodeContainerConfig(bytes.NewReader(b)) if err != nil { t.Fatal(fmt.Errorf("Error parsing %s: %v", f, err)) } if c.Image != "ubuntu" { t.Fatalf("Expected ubuntu image, found %s\n", c.Image) } if c.Entrypoint.Len() != f.entrypoint.Len() { t.Fatalf("Expected %v, found %v\n", f.entrypoint, c.Entrypoint) } if h.Memory != 1000 { t.Fatalf("Expected memory to be 1000, found %d\n", h.Memory) } } }