/* Anagram Game Application */

package com.toy.anagrams.lib;

import java.util.Arrays;
import junit.framework.TestCase;

/**
 * Test of the functionality of {@link WordLibrary}.
 */
public class WordLibraryTest extends TestCase {

    public WordLibraryTest(String testName) {
        super(testName);
    }

    /**
     * Test of {@link WordLibrary#isCorrect}.
     */
    public void testIsCorrect() {
        for (int i = 0; i < WordLibrary.getSize(); i++) {
            String clearWord = WordLibrary.getWord(i);
            String scrambledWord = WordLibrary.getScrambledWord(i);
            assertTrue("Scrambled word \"" + scrambledWord +
                       "\" at index: " + i +
                       " does not represent the word \"" + clearWord + "\"",
                       isAnagram(clearWord, scrambledWord));
        }
    }

    /**
     * Tests whether given anagram represents the word.
     * @param clearWord The word in clear text
     * @param scrambledWord Scrambled version of the word
     * @return true if the scrambledWord is correct anagram of clearWord
     */
    private boolean isAnagram(String clearWord, String scrambledWord) {
        char[] clearArray = clearWord.toCharArray();
        char[] scrambledArray = scrambledWord.toCharArray();
        Arrays.sort(clearArray);
        Arrays.sort(scrambledArray);
        return Arrays.equals(clearArray, scrambledArray);
    }

}