t.Errorf("Expected err to be FitError: %v, but got %v (error: %v)", wantOK, gotOK, err)
				} else if gotOK {
					if diff := cmp.Diff(wantFitErr, gotFitErr); diff != "" {
						t.Errorf("Unexpected fitErr: (-want, +got): %s", diff)
					}
				}
			}
			if test.wantNodes != nil && !test.wantNodes.Has(result.SuggestedHost) {
				t.Errorf("Expected: %s, got: %s", test.wantNodes, result.SuggestedHost)
			}