client/image_prune_test.go

package client

import (
	"context"
	"net/http"
	"testing"

	cerrdefs "github.com/containerd/errdefs"
	"github.com/moby/moby/api/types/image"

	"gotest.tools/v3/assert"
	is "gotest.tools/v3/assert/cmp"
)

func TestImagePruneError(t *testing.T) {
	client, err := New(WithMockClient(errorMock(http.StatusInternalServerError, "Server error")))
	assert.NilError(t, err)

	_, err = client.ImagePrune(context.Background(), ImagePruneOptions{})
	assert.Check(t, is.ErrorType(err, cerrdefs.IsInternal))
}

func TestImagePrune(t *testing.T) {
	const expectedURL = "/images/prune"

	listCases := []struct {
		filters             Filters
		expectedQueryParams map[string]string
	}{
		{
			filters: Filters{},
			expectedQueryParams: map[string]string{
				"until":   "",
				"filter":  "",
				"filters": "",
			},
		},
		{
			filters: make(Filters).Add("dangling", "true"),
			expectedQueryParams: map[string]string{
				"until":   "",
				"filter":  "",
				"filters": `{"dangling":{"true":true}}`,
			},
		},
		{
			filters: make(Filters).Add("dangling", "false"),
			expectedQueryParams: map[string]string{
				"until":   "",
				"filter":  "",
				"filters": `{"dangling":{"false":true}}`,
			},
		},
		{
			filters: make(Filters).
				Add("dangling", "true").
				Add("label", "label1=foo", "label2!=bar"),
			expectedQueryParams: map[string]string{
				"until":   "",
				"filter":  "",
				"filters": `{"dangling":{"true":true},"label":{"label1=foo":true,"label2!=bar":true}}`,
			},
		},
	}
	for _, listCase := range listCases {
		client, err := New(WithMockClient(func(req *http.Request) (*http.Response, error) {
			if err := assertRequest(req, http.MethodPost, expectedURL); err != nil {
				return nil, err
			}
			query := req.URL.Query()
			for key, expected := range listCase.expectedQueryParams {
				actual := query.Get(key)
				assert.Check(t, is.Equal(expected, actual))
			}

			return mockJSONResponse(http.StatusOK, nil, image.PruneReport{
				ImagesDeleted: []image.DeleteResponse{
					{Deleted: "image_id1"},
					{Deleted: "image_id2"},
				},
				SpaceReclaimed: 9999,
			})(req)
		}))
		assert.NilError(t, err)

		res, err := client.ImagePrune(context.Background(), ImagePruneOptions{Filters: listCase.filters})
		assert.NilError(t, err)
		assert.Check(t, is.Len(res.Report.ImagesDeleted, 2))
		assert.Check(t, is.Equal(uint64(9999), res.Report.SpaceReclaimed))
	}
}