package client // import "github.com/docker/docker/client"

 
 import (
 	"bytes"

 	"context"

 	"encoding/json"
 	"fmt"
 	"io/ioutil"
 	"net/http"
 	"strings"
 	"testing"
 
 	"github.com/docker/docker/api/types"
 	"github.com/docker/docker/api/types/filters"

 	volumetypes "github.com/docker/docker/api/types/volume"

 	"github.com/docker/docker/errdefs"

 )
 
 func TestVolumeListError(t *testing.T) {
 	client := &Client{

 		client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")),

 	}
 
 	_, err := client.VolumeList(context.Background(), filters.NewArgs())
 	if err == nil || err.Error() != "Error response from daemon: Server error" {
 		t.Fatalf("expected a Server Error, got %v", err)
 	}

 	if !errdefs.IsSystem(err) {
 		t.Fatalf("expected a Server Error, got %T", err)
 	}

 }
 
 func TestVolumeList(t *testing.T) {
 	expectedURL := "/volumes"
 
 	noDanglingFilters := filters.NewArgs()
 	noDanglingFilters.Add("dangling", "false")
 
 	danglingFilters := filters.NewArgs()
 	danglingFilters.Add("dangling", "true")
 
 	labelFilters := filters.NewArgs()
 	labelFilters.Add("label", "label1")
 	labelFilters.Add("label", "label2")
 
 	listCases := []struct {
 		filters         filters.Args
 		expectedFilters string
 	}{
 		{
 			filters:         filters.NewArgs(),
 			expectedFilters: "",
 		}, {
 			filters:         noDanglingFilters,
 			expectedFilters: `{"dangling":{"false":true}}`,
 		}, {
 			filters:         danglingFilters,
 			expectedFilters: `{"dangling":{"true":true}}`,
 		}, {
 			filters:         labelFilters,
 			expectedFilters: `{"label":{"label1":true,"label2":true}}`,
 		},
 	}
 
 	for _, listCase := range listCases {
 		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()
 				actualFilters := query.Get("filters")
 				if actualFilters != listCase.expectedFilters {
 					return nil, fmt.Errorf("filters not set in URL query properly. Expected '%s', got %s", listCase.expectedFilters, actualFilters)
 				}

 				content, err := json.Marshal(volumetypes.VolumeListOKBody{

 					Volumes: []*types.Volume{
 						{
 							Name:   "volume",
 							Driver: "local",
 						},
 					},
 				})
 				if err != nil {
 					return nil, err
 				}
 				return &http.Response{
 					StatusCode: http.StatusOK,
 					Body:       ioutil.NopCloser(bytes.NewReader(content)),
 				}, nil
 			}),
 		}
 
 		volumeResponse, err := client.VolumeList(context.Background(), listCase.filters)
 		if err != nil {
 			t.Fatal(err)
 		}
 		if len(volumeResponse.Volumes) != 1 {
 			t.Fatalf("expected 1 volume, got %v", volumeResponse.Volumes)
 		}
 	}
 }