package client import ( "bytes" "fmt" "io/ioutil" "net/http" "reflect" "testing" "golang.org/x/net/context" "strings" ) func TestImageSaveError(t *testing.T) { client := &Client{ transport: newMockClient(nil, errorMock(http.StatusInternalServerError, "Server error")), } _, err := client.ImageSave(context.Background(), []string{"nothing"}) if err == nil || err.Error() != "Error response from daemon: Server error" { t.Fatalf("expected a Server error, got %v", err) } } func TestImageSave(t *testing.T) { expectedURL := "/images/get" client := &Client{ transport: newMockClient(nil, func(r *http.Request) (*http.Response, error) { if !strings.HasPrefix(r.URL.Path, expectedURL) { return nil, fmt.Errorf("Expected URL '%s', got '%s'", expectedURL, r.URL) } query := r.URL.Query() names := query["names"] expectedNames := []string{"image_id1", "image_id2"} if !reflect.DeepEqual(names, expectedNames) { return nil, fmt.Errorf("names not set in URL query properly. Expected %v, got %v", names, expectedNames) } return &http.Response{ StatusCode: http.StatusOK, Body: ioutil.NopCloser(bytes.NewReader([]byte("response"))), }, nil }), } saveResponse, err := client.ImageSave(context.Background(), []string{"image_id1", "image_id2"}) if err != nil { t.Fatal(err) } response, err := ioutil.ReadAll(saveResponse) if err != nil { t.Fatal(err) } saveResponse.Close() if string(response) != "response" { t.Fatalf("expected response to contain 'response', got %s", string(response)) } }