package client // import "github.com/docker/docker/client" import ( "bytes" "context" "encoding/json" "fmt" "io/ioutil" "net/http" "strings" "testing" "github.com/docker/docker/api/types" "github.com/docker/docker/api/types/filters" "github.com/docker/docker/api/types/swarm" "github.com/docker/docker/errdefs" ) func TestNodeListError(t *testing.T) { client := &Client{ client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")), } _, err := client.NodeList(context.Background(), types.NodeListOptions{}) if err == nil || err.Error() != "Error response from daemon: Server error" { t.Fatalf("expected a Server Error, got %v", err) } if !errdefs.IsSystem(err) { t.Fatalf("expected a Server Error, got %T", err) } } func TestNodeList(t *testing.T) { expectedURL := "/nodes" filters := filters.NewArgs() filters.Add("label", "label1") filters.Add("label", "label2") listCases := []struct { options types.NodeListOptions expectedQueryParams map[string]string }{ { options: types.NodeListOptions{}, expectedQueryParams: map[string]string{ "filters": "", }, }, { options: types.NodeListOptions{ Filters: filters, }, expectedQueryParams: map[string]string{ "filters": `{"label":{"label1":true,"label2":true}}`, }, }, } for _, listCase := range listCases { client := &Client{ client: newMockClient(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([]swarm.Node{ { ID: "node_id1", }, { ID: "node_id2", }, }) if err != nil { return nil, err } return &http.Response{ StatusCode: http.StatusOK, Body: ioutil.NopCloser(bytes.NewReader(content)), }, nil }), } nodes, err := client.NodeList(context.Background(), listCase.options) if err != nil { t.Fatal(err) } if len(nodes) != 2 { t.Fatalf("expected 2 nodes, got %v", nodes) } } }