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"

 	"gotest.tools/assert"
 	is "gotest.tools/assert/cmp"

 )
 
 func TestImagesPruneError(t *testing.T) {
 	client := &Client{
 		client:  newMockClient(errorMock(http.StatusInternalServerError, "Server error")),
 		version: "1.25",
 	}
 
 	filters := filters.NewArgs()
 
 	_, err := client.ImagesPrune(context.Background(), filters)

 	assert.Check(t, is.Error(err, "Error response from daemon: Server error"))

 }
 
 func TestImagesPrune(t *testing.T) {
 	expectedURL := "/v1.25/images/prune"
 
 	danglingFilters := filters.NewArgs()
 	danglingFilters.Add("dangling", "true")
 
 	noDanglingFilters := filters.NewArgs()
 	noDanglingFilters.Add("dangling", "false")
 

 	labelFilters := filters.NewArgs()
 	labelFilters.Add("dangling", "true")
 	labelFilters.Add("label", "label1=foo")
 	labelFilters.Add("label", "label2!=bar")
 

 	listCases := []struct {
 		filters             filters.Args
 		expectedQueryParams map[string]string
 	}{
 		{
 			filters: filters.Args{},
 			expectedQueryParams: map[string]string{
 				"until":   "",
 				"filter":  "",
 				"filters": "",
 			},
 		},
 		{
 			filters: danglingFilters,
 			expectedQueryParams: map[string]string{
 				"until":   "",
 				"filter":  "",
 				"filters": `{"dangling":{"true":true}}`,
 			},
 		},
 		{
 			filters: noDanglingFilters,
 			expectedQueryParams: map[string]string{
 				"until":   "",
 				"filter":  "",
 				"filters": `{"dangling":{"false":true}}`,
 			},
 		},

 		{
 			filters: labelFilters,
 			expectedQueryParams: map[string]string{
 				"until":   "",
 				"filter":  "",
 				"filters": `{"dangling":{"true":true},"label":{"label1=foo":true,"label2!=bar":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()
 				for key, expected := range listCase.expectedQueryParams {
 					actual := query.Get(key)

 					assert.Check(t, is.Equal(expected, actual))

 				}
 				content, err := json.Marshal(types.ImagesPruneReport{

 					ImagesDeleted: []types.ImageDeleteResponseItem{

 						{
 							Deleted: "image_id1",
 						},
 						{
 							Deleted: "image_id2",
 						},
 					},
 					SpaceReclaimed: 9999,
 				})
 				if err != nil {
 					return nil, err
 				}
 				return &http.Response{
 					StatusCode: http.StatusOK,
 					Body:       ioutil.NopCloser(bytes.NewReader(content)),
 				}, nil
 			}),
 			version: "1.25",
 		}
 
 		report, err := client.ImagesPrune(context.Background(), listCase.filters)

 		assert.Check(t, err)
 		assert.Check(t, is.Len(report.ImagesDeleted, 2))
 		assert.Check(t, is.Equal(uint64(9999), report.SpaceReclaimed))

 	}
 }