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Commit 13b85c41 authored by Yuichiro Hanada's avatar Yuichiro Hanada
Browse files

Refactor BinaryDictIOTests.

Change-Id: I6eef88ab436f478a9255cc20ea59a24cd472807e
parent 6e422af8
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+51 −49
Original line number Diff line number Diff line
@@ -54,15 +54,41 @@ public class BinaryDictIOTests extends AndroidTestCase {
    private static final int BIGRAM_FREQ = 50;
    private static final int TOLERANCE_OF_BIGRAM_FREQ = 5;

    private static final List<String> sWords = CollectionUtils.newArrayList();
    private static final SparseArray<List<Integer>> sEmptyBigrams =
            CollectionUtils.newSparseArray();
    private static final SparseArray<List<Integer>> sStarBigrams = CollectionUtils.newSparseArray();
    private static final SparseArray<List<Integer>> sChainBigrams =
            CollectionUtils.newSparseArray();

    private static final BinaryDictInputOutput.FormatOptions VERSION2 =
            new BinaryDictInputOutput.FormatOptions(2);

    private static final String[] CHARACTERS =
        {
    private static final String[] CHARACTERS = {
        "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m",
        "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"
    };

    public BinaryDictIOTests() {
        super();

        final Random random = new Random(123456);
        sWords.clear();
        generateWords(MAX_UNIGRAMS, random);

        for (int i = 0; i < sWords.size(); ++i) {
            sChainBigrams.put(i, new ArrayList<Integer>());
            if (i > 0) {
                sChainBigrams.get(i-1).add(i);
            }
        }

        sStarBigrams.put(0, new ArrayList<Integer>());
        for (int i = 1; i < sWords.size(); ++i) {
            sStarBigrams.get(0).add(i);
        }
    }

    // Utilities for test
    /**
     * Generates a random word.
@@ -78,12 +104,12 @@ public class BinaryDictIOTests extends AndroidTestCase {
        return builder.toString();
    }

    private List<String> generateWords(final int number, final Random random) {
    private void generateWords(final int number, final Random random) {
        final Set<String> wordSet = CollectionUtils.newHashSet();
        while (wordSet.size() < number) {
            wordSet.add(generateWord(random.nextInt()));
        }
        return new ArrayList<String>(wordSet);
        sWords.addAll(wordSet);
    }

    /**
@@ -182,10 +208,8 @@ public class BinaryDictIOTests extends AndroidTestCase {
                    FileChannel.MapMode.READ_ONLY, 0, file.length());

            now = System.currentTimeMillis();

            final FusionDictionary dict =
                    BinaryDictInputOutput.readDictionaryBinary(buffer, null);

            diff = System.currentTimeMillis() - now;

            checkDictionary(dict, words, bigrams, shortcutMap);
@@ -212,22 +236,19 @@ public class BinaryDictIOTests extends AndroidTestCase {
    private String runReadAndWrite(final List<String> words,
            final SparseArray<List<Integer>> bigrams, final Map<String, List<String>> shortcuts,
            final String message) {
        final FusionDictionary dict = new FusionDictionary(new Node(),
                new FusionDictionary.DictionaryOptions(
                        new HashMap<String,String>(), false, false));

        File file = null;
        try {
            file = File.createTempFile("runReadAndWrite", ".dict");
        } catch (IOException e) {
            Log.e(TAG, "IOException: " + e);
        }

        assertNotNull(file);

        final FusionDictionary dict = new FusionDictionary(new Node(),
                new FusionDictionary.DictionaryOptions(
                        new HashMap<String,String>(), false, false));
        addUnigrams(words.size(), dict, words, shortcuts);
        addBigrams(dict, words, bigrams);
        // check original dictionary
        checkDictionary(dict, words, bigrams, shortcuts);

        final long write = timeWritingDictToFile(file, dict);
@@ -239,22 +260,9 @@ public class BinaryDictIOTests extends AndroidTestCase {
    public void testReadAndWrite() {
        final List<String> results = new ArrayList<String>();

        final Random random = new Random(123456);
        final List<String> words = generateWords(MAX_UNIGRAMS, random);
        final SparseArray<List<Integer>> emptyArray = CollectionUtils.newSparseArray();

        final SparseArray<List<Integer>> chain = CollectionUtils.newSparseArray();
        for (int i = 0; i < words.size(); ++i) chain.put(i, new ArrayList<Integer>());
        for (int i = 1; i < words.size(); ++i) chain.get(i-1).add(i);

        final SparseArray<List<Integer>> star = CollectionUtils.newSparseArray();
        final List<Integer> list0 = CollectionUtils.newArrayList();
        star.put(0, list0);
        for (int i = 1; i < words.size(); ++i) star.get(0).add(i);

        results.add(runReadAndWrite(words, emptyArray, null /* shortcuts */ , "only unigram"));
        results.add(runReadAndWrite(words, chain, null /* shortcuts */ , "chain"));
        results.add(runReadAndWrite(words, star, null /* shortcuts */ , "star"));
        results.add(runReadAndWrite(sWords, sEmptyBigrams, null /* shortcuts */ , "unigram"));
        results.add(runReadAndWrite(sWords, sChainBigrams, null /* shortcuts */ , "chain"));
        results.add(runReadAndWrite(sWords, sStarBigrams, null /* shortcuts */ , "star"));

        for (final String result : results) {
            Log.d(TAG, result);
@@ -347,47 +355,41 @@ public class BinaryDictIOTests extends AndroidTestCase {
        return diff;
    }

    private void runReadUnigramsAndBigramsBinary(final List<String> words,
            final SparseArray<List<Integer>> bigrams) {

        // making the dictionary from lists of words.
        final FusionDictionary dict = new FusionDictionary(new Node(),
                new FusionDictionary.DictionaryOptions(
                        new HashMap<String, String>(), false, false));

    private String runReadUnigramsAndBigramsBinary(final List<String> words,
            final SparseArray<List<Integer>> bigrams, final String message) {
        File file = null;
        try {
            file = File.createTempFile("runReadUnigrams", ".dict");
        } catch (IOException e) {
            Log.e(TAG, "IOException: " + e);
        }

        assertNotNull(file);

        // making the dictionary from lists of words.
        final FusionDictionary dict = new FusionDictionary(new Node(),
                new FusionDictionary.DictionaryOptions(
                        new HashMap<String, String>(), false, false));
        addUnigrams(words.size(), dict, words, null /* shortcutMap */);
        addBigrams(dict, words, bigrams);

        timeWritingDictToFile(file, dict);

        long wordMap = timeAndCheckReadUnigramsAndBigramsBinary(file, words, bigrams);
        long fullReading = timeReadingAndCheckDict(file, words, bigrams, null /* shortcutMap */);

        Log.d(TAG, "read=" + fullReading + ", bytearray=" + wordMap);
        return "readDictionaryBinary=" + fullReading + ", readUnigramsAndBigramsBinary=" + wordMap
                + " : " + message;
    }

    public void testReadUnigramsAndBigramsBinary() {
        final List<String> results = new ArrayList<String>();

        final Random random = new Random(123456);
        final List<String> words = generateWords(MAX_UNIGRAMS, random);
        final SparseArray<List<Integer>> emptyArray = CollectionUtils.newSparseArray();

        runReadUnigramsAndBigramsBinary(words, emptyArray);
        results.add(runReadUnigramsAndBigramsBinary(sWords, sEmptyBigrams, "unigram"));
        results.add(runReadUnigramsAndBigramsBinary(sWords, sChainBigrams, "chain"));
        results.add(runReadUnigramsAndBigramsBinary(sWords, sStarBigrams, "star"));

        final SparseArray<List<Integer>> star = CollectionUtils.newSparseArray();
        for (int i = 1; i < words.size(); ++i) {
            star.put(i-1, new ArrayList<Integer>());
            star.get(i-1).add(i);
        for (final String result : results) {
            Log.d(TAG, result);
        }
        runReadUnigramsAndBigramsBinary(words, star);
    }
}