import org.apache.commons.lang.StringUtils;

import java.util.List;

public class YesNoQuestionPromptEvent extends PromptOutputEvent {
    public static final List<String> YES_NO_CHOICES = Lists.newArrayList("yes", "no");
    private final String question;

    public YesNoQuestionPromptEvent(long timestamp, String question) {
        super(timestamp);
        this.question = question;
    }

class YesNoQuestionPromptEventTest extends Specification {
    def "formats prompt"() {
        def event = new YesNoQuestionPromptEvent(123, "question?")

        expect:
        event.prompt == "question? [yes, no] " // trailing space
    }

    def "accepts valid input"() {
        def event = new YesNoQuestionPromptEvent(123, "question?")

        expect:
        def result = event.convert(input)

        builder.append(" (default: ");
        String defaultString = defaultValue ? "yes" : "no";
        builder.append(defaultString);
        builder.append(") [");
        builder.append(StringUtils.join(YesNoQuestionPromptEvent.YES_NO_CHOICES, ", "));
        builder.append("] ");
        return builder.toString();
    }

    public String getQuestion() {
        return question;
    }

    public boolean getDefaultValue() {