github.com/justincormack/cli@v0.0.0-20201215022714-831ebeae9675/cli/command/image/prune_test.go (about)

     1  package image
     2  
     3  import (
     4  	"fmt"
     5  	"io/ioutil"
     6  	"testing"
     7  
     8  	"github.com/docker/cli/internal/test"
     9  	"github.com/docker/docker/api/types"
    10  	"github.com/docker/docker/api/types/filters"
    11  	"github.com/pkg/errors"
    12  	"gotest.tools/v3/assert"
    13  	is "gotest.tools/v3/assert/cmp"
    14  	"gotest.tools/v3/golden"
    15  )
    16  
    17  func TestNewPruneCommandErrors(t *testing.T) {
    18  	testCases := []struct {
    19  		name            string
    20  		args            []string
    21  		expectedError   string
    22  		imagesPruneFunc func(pruneFilter filters.Args) (types.ImagesPruneReport, error)
    23  	}{
    24  		{
    25  			name:          "wrong-args",
    26  			args:          []string{"something"},
    27  			expectedError: "accepts no arguments.",
    28  		},
    29  		{
    30  			name:          "prune-error",
    31  			args:          []string{"--force"},
    32  			expectedError: "something went wrong",
    33  			imagesPruneFunc: func(pruneFilter filters.Args) (types.ImagesPruneReport, error) {
    34  				return types.ImagesPruneReport{}, errors.Errorf("something went wrong")
    35  			},
    36  		},
    37  	}
    38  	for _, tc := range testCases {
    39  		cmd := NewPruneCommand(test.NewFakeCli(&fakeClient{
    40  			imagesPruneFunc: tc.imagesPruneFunc,
    41  		}))
    42  		cmd.SetOut(ioutil.Discard)
    43  		cmd.SetArgs(tc.args)
    44  		assert.ErrorContains(t, cmd.Execute(), tc.expectedError)
    45  	}
    46  }
    47  
    48  func TestNewPruneCommandSuccess(t *testing.T) {
    49  	testCases := []struct {
    50  		name            string
    51  		args            []string
    52  		imagesPruneFunc func(pruneFilter filters.Args) (types.ImagesPruneReport, error)
    53  	}{
    54  		{
    55  			name: "all",
    56  			args: []string{"--all"},
    57  			imagesPruneFunc: func(pruneFilter filters.Args) (types.ImagesPruneReport, error) {
    58  				assert.Check(t, is.Equal("false", pruneFilter.Get("dangling")[0]))
    59  				return types.ImagesPruneReport{}, nil
    60  			},
    61  		},
    62  		{
    63  			name: "force-deleted",
    64  			args: []string{"--force"},
    65  			imagesPruneFunc: func(pruneFilter filters.Args) (types.ImagesPruneReport, error) {
    66  				assert.Check(t, is.Equal("true", pruneFilter.Get("dangling")[0]))
    67  				return types.ImagesPruneReport{
    68  					ImagesDeleted:  []types.ImageDeleteResponseItem{{Deleted: "image1"}},
    69  					SpaceReclaimed: 1,
    70  				}, nil
    71  			},
    72  		},
    73  		{
    74  			name: "label-filter",
    75  			args: []string{"--force", "--filter", "label=foobar"},
    76  			imagesPruneFunc: func(pruneFilter filters.Args) (types.ImagesPruneReport, error) {
    77  				assert.Check(t, is.Equal("foobar", pruneFilter.Get("label")[0]))
    78  				return types.ImagesPruneReport{}, nil
    79  			},
    80  		},
    81  		{
    82  			name: "force-untagged",
    83  			args: []string{"--force"},
    84  			imagesPruneFunc: func(pruneFilter filters.Args) (types.ImagesPruneReport, error) {
    85  				assert.Check(t, is.Equal("true", pruneFilter.Get("dangling")[0]))
    86  				return types.ImagesPruneReport{
    87  					ImagesDeleted:  []types.ImageDeleteResponseItem{{Untagged: "image1"}},
    88  					SpaceReclaimed: 2,
    89  				}, nil
    90  			},
    91  		},
    92  	}
    93  	for _, tc := range testCases {
    94  		cli := test.NewFakeCli(&fakeClient{imagesPruneFunc: tc.imagesPruneFunc})
    95  		cmd := NewPruneCommand(cli)
    96  		cmd.SetOut(ioutil.Discard)
    97  		cmd.SetArgs(tc.args)
    98  		err := cmd.Execute()
    99  		assert.NilError(t, err)
   100  		golden.Assert(t, cli.OutBuffer().String(), fmt.Sprintf("prune-command-success.%s.golden", tc.name))
   101  	}
   102  }