github.com/zhouyu0/docker-note@v0.0.0-20190722021225-b8d3825084db/client/image_prune_test.go (about)

     1  package client // import "github.com/docker/docker/client"
     2  
     3  import (
     4  	"bytes"
     5  	"context"
     6  	"encoding/json"
     7  	"fmt"
     8  	"io/ioutil"
     9  	"net/http"
    10  	"strings"
    11  	"testing"
    12  
    13  	"github.com/docker/docker/api/types"
    14  	"github.com/docker/docker/api/types/filters"
    15  	"gotest.tools/assert"
    16  	is "gotest.tools/assert/cmp"
    17  )
    18  
    19  func TestImagesPruneError(t *testing.T) {
    20  	client := &Client{
    21  		client:  newMockClient(errorMock(http.StatusInternalServerError, "Server error")),
    22  		version: "1.25",
    23  	}
    24  
    25  	filters := filters.NewArgs()
    26  
    27  	_, err := client.ImagesPrune(context.Background(), filters)
    28  	assert.Check(t, is.Error(err, "Error response from daemon: Server error"))
    29  }
    30  
    31  func TestImagesPrune(t *testing.T) {
    32  	expectedURL := "/v1.25/images/prune"
    33  
    34  	danglingFilters := filters.NewArgs()
    35  	danglingFilters.Add("dangling", "true")
    36  
    37  	noDanglingFilters := filters.NewArgs()
    38  	noDanglingFilters.Add("dangling", "false")
    39  
    40  	labelFilters := filters.NewArgs()
    41  	labelFilters.Add("dangling", "true")
    42  	labelFilters.Add("label", "label1=foo")
    43  	labelFilters.Add("label", "label2!=bar")
    44  
    45  	listCases := []struct {
    46  		filters             filters.Args
    47  		expectedQueryParams map[string]string
    48  	}{
    49  		{
    50  			filters: filters.Args{},
    51  			expectedQueryParams: map[string]string{
    52  				"until":   "",
    53  				"filter":  "",
    54  				"filters": "",
    55  			},
    56  		},
    57  		{
    58  			filters: danglingFilters,
    59  			expectedQueryParams: map[string]string{
    60  				"until":   "",
    61  				"filter":  "",
    62  				"filters": `{"dangling":{"true":true}}`,
    63  			},
    64  		},
    65  		{
    66  			filters: noDanglingFilters,
    67  			expectedQueryParams: map[string]string{
    68  				"until":   "",
    69  				"filter":  "",
    70  				"filters": `{"dangling":{"false":true}}`,
    71  			},
    72  		},
    73  		{
    74  			filters: labelFilters,
    75  			expectedQueryParams: map[string]string{
    76  				"until":   "",
    77  				"filter":  "",
    78  				"filters": `{"dangling":{"true":true},"label":{"label1=foo":true,"label2!=bar":true}}`,
    79  			},
    80  		},
    81  	}
    82  	for _, listCase := range listCases {
    83  		client := &Client{
    84  			client: newMockClient(func(req *http.Request) (*http.Response, error) {
    85  				if !strings.HasPrefix(req.URL.Path, expectedURL) {
    86  					return nil, fmt.Errorf("Expected URL '%s', got '%s'", expectedURL, req.URL)
    87  				}
    88  				query := req.URL.Query()
    89  				for key, expected := range listCase.expectedQueryParams {
    90  					actual := query.Get(key)
    91  					assert.Check(t, is.Equal(expected, actual))
    92  				}
    93  				content, err := json.Marshal(types.ImagesPruneReport{
    94  					ImagesDeleted: []types.ImageDeleteResponseItem{
    95  						{
    96  							Deleted: "image_id1",
    97  						},
    98  						{
    99  							Deleted: "image_id2",
   100  						},
   101  					},
   102  					SpaceReclaimed: 9999,
   103  				})
   104  				if err != nil {
   105  					return nil, err
   106  				}
   107  				return &http.Response{
   108  					StatusCode: http.StatusOK,
   109  					Body:       ioutil.NopCloser(bytes.NewReader(content)),
   110  				}, nil
   111  			}),
   112  			version: "1.25",
   113  		}
   114  
   115  		report, err := client.ImagesPrune(context.Background(), listCase.filters)
   116  		assert.Check(t, err)
   117  		assert.Check(t, is.Len(report.ImagesDeleted, 2))
   118  		assert.Check(t, is.Equal(uint64(9999), report.SpaceReclaimed))
   119  	}
   120  }