package client import ( "bytes" "encoding/json" "fmt" "io/ioutil" "net/http" "strings" "testing" "github.com/docker/docker/api/types" "github.com/docker/docker/api/types/filters" "golang.org/x/net/context" ) func TestImageListError(t *testing.T) { client := &Client{ transport: newMockClient(nil, errorMock(http.StatusInternalServerError, "Server error")), } _, err := client.ImageList(context.Background(), types.ImageListOptions{}) if err == nil || err.Error() != "Error response from daemon: Server error" { t.Fatalf("expected a Server Error, got %v", err) } } func TestImageList(t *testing.T) { expectedURL := "/images/json" noDanglingfilters := filters.NewArgs() noDanglingfilters.Add("dangling", "false") filters := filters.NewArgs() filters.Add("label", "label1") filters.Add("label", "label2") filters.Add("dangling", "true") listCases := []struct { options types.ImageListOptions expectedQueryParams map[string]string }{ { options: types.ImageListOptions{}, expectedQueryParams: map[string]string{ "all": "", "filter": "", "filters": "", }, }, { options: types.ImageListOptions{ All: true, MatchName: "image_name", }, expectedQueryParams: map[string]string{ "all": "1", "filter": "image_name", "filters": "", }, }, { options: types.ImageListOptions{ Filters: filters, }, expectedQueryParams: map[string]string{ "all": "", "filter": "", "filters": `{"dangling":{"true":true},"label":{"label1":true,"label2":true}}`, }, }, { options: types.ImageListOptions{ Filters: noDanglingfilters, }, expectedQueryParams: map[string]string{ "all": "", "filter": "", "filters": `{"dangling":{"false":true}}`, }, }, } for _, listCase := range listCases { client := &Client{ transport: newMockClient(nil, 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) if actual != expected { return nil, fmt.Errorf("%s not set in URL query properly. Expected '%s', got %s", key, expected, actual) } } content, err := json.Marshal([]types.Image{ { ID: "image_id2", }, { ID: "image_id2", }, }) if err != nil { return nil, err } return &http.Response{ StatusCode: http.StatusOK, Body: ioutil.NopCloser(bytes.NewReader(content)), }, nil }), } images, err := client.ImageList(context.Background(), listCase.options) if err != nil { t.Fatal(err) } if len(images) != 2 { t.Fatalf("expected 2 images, got %v", images) } } }