package client import ( "bytes" "fmt" "io/ioutil" "net/http" "strings" "testing" "golang.org/x/net/context" ) func TestContainerExportError(t *testing.T) { client := &Client{ transport: newMockClient(nil, errorMock(http.StatusInternalServerError, "Server error")), } _, err := client.ContainerExport(context.Background(), "nothing") if err == nil || err.Error() != "Error response from daemon: Server error" { t.Fatalf("expected a Server Error, got %v", err) } } func TestContainerExport(t *testing.T) { expectedURL := "/containers/container_id/export" 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) } return &http.Response{ StatusCode: http.StatusOK, Body: ioutil.NopCloser(bytes.NewReader([]byte("response"))), }, nil }), } body, err := client.ContainerExport(context.Background(), "container_id") if err != nil { t.Fatal(err) } defer body.Close() content, err := ioutil.ReadAll(body) if err != nil { t.Fatal(err) } if string(content) != "response" { t.Fatalf("expected response to contain 'response', got %s", string(content)) } }