package client // import "github.com/docker/docker/client" import ( "bytes" "context" "fmt" "io" "net/http" "strings" "testing" "github.com/docker/docker/api/types" "github.com/docker/docker/api/types/registry" "github.com/docker/docker/errdefs" ) func TestImagePullReferenceParseError(t *testing.T) { client := &Client{ client: newMockClient(func(req *http.Request) (*http.Response, error) { return nil, nil }), } // An empty reference is an invalid reference _, err := client.ImagePull(context.Background(), "", types.ImagePullOptions{}) if err == nil || !strings.Contains(err.Error(), "invalid reference format") { t.Fatalf("expected an error, got %v", err) } } func TestImagePullAnyError(t *testing.T) { client := &Client{ client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")), } _, err := client.ImagePull(context.Background(), "myimage", types.ImagePullOptions{}) if !errdefs.IsSystem(err) { t.Fatalf("expected a Server Error, got %[1]T: %[1]v", err) } } func TestImagePullStatusUnauthorizedError(t *testing.T) { client := &Client{ client: newMockClient(errorMock(http.StatusUnauthorized, "Unauthorized error")), } _, err := client.ImagePull(context.Background(), "myimage", types.ImagePullOptions{}) if !errdefs.IsUnauthorized(err) { t.Fatalf("expected a Unauthorized Error, got %[1]T: %[1]v", err) } } func TestImagePullWithUnauthorizedErrorAndPrivilegeFuncError(t *testing.T) { client := &Client{ client: newMockClient(errorMock(http.StatusUnauthorized, "Unauthorized error")), } privilegeFunc := func() (string, error) { return "", fmt.Errorf("Error requesting privilege") } _, err := client.ImagePull(context.Background(), "myimage", types.ImagePullOptions{ PrivilegeFunc: privilegeFunc, }) if err == nil || err.Error() != "Error requesting privilege" { t.Fatalf("expected an error requesting privilege, got %v", err) } } func TestImagePullWithUnauthorizedErrorAndAnotherUnauthorizedError(t *testing.T) { client := &Client{ client: newMockClient(errorMock(http.StatusUnauthorized, "Unauthorized error")), } privilegeFunc := func() (string, error) { return "a-auth-header", nil } _, err := client.ImagePull(context.Background(), "myimage", types.ImagePullOptions{ PrivilegeFunc: privilegeFunc, }) if !errdefs.IsUnauthorized(err) { t.Fatalf("expected a Unauthorized Error, got %[1]T: %[1]v", err) } } func TestImagePullWithPrivilegedFuncNoError(t *testing.T) { expectedURL := "/images/create" client := &Client{ client: newMockClient(func(req *http.Request) (*http.Response, error) { if !strings.HasPrefix(req.URL.Path, expectedURL) { return nil, fmt.Errorf("expected URL '%s', got '%s'", expectedURL, req.URL) } auth := req.Header.Get(registry.AuthHeader) if auth == "NotValid" { return &http.Response{ StatusCode: http.StatusUnauthorized, Body: io.NopCloser(bytes.NewReader([]byte("Invalid credentials"))), }, nil } if auth != "IAmValid" { return nil, fmt.Errorf("invalid auth header: expected %s, got %s", "IAmValid", auth) } query := req.URL.Query() fromImage := query.Get("fromImage") if fromImage != "myimage" { return nil, fmt.Errorf("fromimage not set in URL query properly. Expected '%s', got %s", "myimage", fromImage) } tag := query.Get("tag") if tag != "latest" { return nil, fmt.Errorf("tag not set in URL query properly. Expected '%s', got %s", "latest", tag) } return &http.Response{ StatusCode: http.StatusOK, Body: io.NopCloser(bytes.NewReader([]byte("hello world"))), }, nil }), } privilegeFunc := func() (string, error) { return "IAmValid", nil } resp, err := client.ImagePull(context.Background(), "myimage", types.ImagePullOptions{ RegistryAuth: "NotValid", PrivilegeFunc: privilegeFunc, }) if err != nil { t.Fatal(err) } body, err := io.ReadAll(resp) if err != nil { t.Fatal(err) } if string(body) != "hello world" { t.Fatalf("expected 'hello world', got %s", string(body)) } } func TestImagePullWithoutErrors(t *testing.T) { expectedURL := "/images/create" expectedOutput := "hello world" pullCases := []struct { all bool reference string expectedImage string expectedTag string }{ { all: false, reference: "myimage", expectedImage: "myimage", expectedTag: "latest", }, { all: false, reference: "myimage:tag", expectedImage: "myimage", expectedTag: "tag", }, { all: true, reference: "myimage", expectedImage: "myimage", expectedTag: "", }, { all: true, reference: "myimage:anything", expectedImage: "myimage", expectedTag: "", }, } for _, pullCase := range pullCases { client := &Client{ client: newMockClient(func(req *http.Request) (*http.Response, error) { if !strings.HasPrefix(req.URL.Path, expectedURL) { return nil, fmt.Errorf("Expected URL '%s', got '%s'", expectedURL, req.URL) } query := req.URL.Query() fromImage := query.Get("fromImage") if fromImage != pullCase.expectedImage { return nil, fmt.Errorf("fromimage not set in URL query properly. Expected '%s', got %s", pullCase.expectedImage, fromImage) } tag := query.Get("tag") if tag != pullCase.expectedTag { return nil, fmt.Errorf("tag not set in URL query properly. Expected '%s', got %s", pullCase.expectedTag, tag) } return &http.Response{ StatusCode: http.StatusOK, Body: io.NopCloser(bytes.NewReader([]byte(expectedOutput))), }, nil }), } resp, err := client.ImagePull(context.Background(), pullCase.reference, types.ImagePullOptions{ All: pullCase.all, }) if err != nil { t.Fatal(err) } body, err := io.ReadAll(resp) if err != nil { t.Fatal(err) } if string(body) != expectedOutput { t.Fatalf("expected '%s', got %s", expectedOutput, string(body)) } } }