github.com/fabiokung/docker@v0.11.2-0.20170222101415-4534dcd49497/client/image_prune_test.go (about)

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