formatter.append("thing")
        formatter.append(".")

        then:
        formatter.toString() == toPlatformLineSeparators('''Root
Some thing.''')
    }

    def "can append to child node"() {
        when:
        formatter.node("Root")
        formatter.startChildren()
        formatter.node("some ")
        formatter.append("thing")
        formatter.append(".")
        formatter.endChildren()

        if (typeRelevant) {
            if (pluginId.isPresent()) {
                builder.append("In plugin '")
                    .append(pluginId.get())
                    .append("' type '");
            } else {
                builder.append("Type '");
            }
            builder.append(rootType.get()).append("' ");
        }

			allErrs = append(allErrs, field.Invalid(fldPath.Child("priorityLevelConfiguration").Child("name"), spec.PriorityLevelConfiguration.Name, msg))
		}
	} else {
		allErrs = append(allErrs, field.Required(fldPath.Child("priorityLevelConfiguration").Child("name"), "must reference a priority level"))
	}
	for i, rule := range spec.Rules {

        sb.append(dm).append(authRealm);
        sb.append(dm).append(createdBy);
        sb.append(dm).append(createdTime);
        sb.append(dm).append(hostname);
        sb.append(dm).append(parameters);
        sb.append(dm).append(password);
        sb.append(dm).append(port);
        sb.append(dm).append(protocolScheme);
        sb.append(dm).append(updatedBy);

            buf.append('"').append(StringEscapeUtils.escapeJson(format)).append('"');
        } else if (value instanceof String[]) {
            final String json = Arrays.stream((String[]) value).map(s -> "\"" + StringEscapeUtils.escapeJson(s) + "\"")
                    .collect(Collectors.joining(","));
            buf.append('[').append(json).append(']');
        } else if (value instanceof List) {

        StringBuilder buffer = new StringBuilder(256);

        buffer.append(LS).append("Artifact Metadata").append(LS).append("--------------------------");
        buffer.append(LS).append("GroupId: ").append(getGroupId());
        buffer.append(LS).append("ArtifactId: ").append(getArtifactId());
        buffer.append(LS).append("Metadata Type: ").append(getClass().getName());

        return buffer.toString();
    }

            message.append(description);
        } else {
            message.append(ModelType.of(method.getDeclaringClass()).getDisplayName()).append('.').append(description);
        }
        message.append(" is not a valid");
        if (role != null) {
            message.append(' ').append(role);
        }
        message.append(" method: ");
        message.append(problem);

        sb.append(dm).append(createdBy);
        sb.append(dm).append(createdTime);
        sb.append(dm).append(fileConfigId);
        sb.append(dm).append(hostname);
        sb.append(dm).append(parameters);
        sb.append(dm).append(password);
        sb.append(dm).append(port);
        sb.append(dm).append(protocolScheme);
        sb.append(dm).append(updatedBy);

            append("fun ")
            signature.receiverType?.let { append('.'); append(it.render(position = Variance.INVARIANT)) }
            append((signature.symbol as KaNamedSymbol).name.asString())
            printCollection(signature.valueParameters, prefix = "(", postfix = ")") { parameter ->
                append(parameter.name.asString())
                append(": ")

        sb.append(dm).append(createdBy);
        sb.append(dm).append(createdTime);
        sb.append(dm).append(expiredTime);
        sb.append(dm).append(name);
        sb.append(dm).append(parameterName);
        sb.append(dm).append(permissions);
        sb.append(dm).append(token);
        sb.append(dm).append(updatedBy);
        sb.append(dm).append(updatedTime);