mirror of
https://gitlab.futo.org/keyboard/latinime.git
synced 2024-09-28 14:54:30 +01:00
343 lines
17 KiB
Java
343 lines
17 KiB
Java
/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.inputmethod.latin;
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import android.test.AndroidTestCase;
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import android.test.suitebuilder.annotation.LargeTest;
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import com.android.inputmethod.latin.makedict.BinaryDictEncoderUtils;
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import com.android.inputmethod.latin.makedict.FormatSpec;
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import java.io.File;
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import java.io.IOException;
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import java.util.HashMap;
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import java.util.Locale;
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import java.util.Map;
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// TODO: Add a test to evaluate the speed of operations of Ver4 dictionary.
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@LargeTest
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public class Ver4BinaryDictionaryTests extends AndroidTestCase {
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private static final String TEST_LOCALE = "test";
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private static final String TEST_DICT_FILE_EXTENSION = ".testDict";
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@Override
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protected void setUp() throws Exception {
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super.setUp();
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}
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@Override
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protected void tearDown() throws Exception {
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super.tearDown();
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}
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// Note that dictVersion is different from dictionary format version and it never affects the
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// dictionary format.
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// TODO: Rename dictVersion to understandable name such as dictRevision.
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private File createEmptyDictionaryAndGetTrieFile(final String dictVersion) throws IOException {
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final File file = File.createTempFile(dictVersion, TEST_DICT_FILE_EXTENSION,
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getContext().getCacheDir());
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file.delete();
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file.mkdir();
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Map<String, String> attributeMap = new HashMap<String, String>();
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attributeMap.put(FormatSpec.FileHeader.SUPPORTS_DYNAMIC_UPDATE_ATTRIBUTE,
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FormatSpec.FileHeader.ATTRIBUTE_VALUE_TRUE);
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if (BinaryDictionary.createEmptyDictFile(file.getAbsolutePath(),
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4 /* dictVersion */, attributeMap)) {
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return new File(file, FormatSpec.TRIE_FILE_EXTENSION);
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} else {
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throw new IOException("Empty dictionary " + file.getAbsolutePath() + " "
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+ FormatSpec.TRIE_FILE_EXTENSION + " cannot be created.");
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}
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}
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public void testIsValidDictionary() {
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final String dictVersion = Long.toString(System.currentTimeMillis());
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File trieFile = null;
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try {
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trieFile = createEmptyDictionaryAndGetTrieFile(dictVersion);
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} catch (IOException e) {
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fail("IOException while writing an initial dictionary : " + e);
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}
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final BinaryDictionary binaryDictionary = new BinaryDictionary(trieFile.getAbsolutePath(),
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0 /* offset */, trieFile.length(), true /* useFullEditDistance */,
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Locale.getDefault(), TEST_LOCALE, true /* isUpdatable */);
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assertTrue(binaryDictionary.isValidDictionary());
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}
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// TODO: Add large tests.
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public void testReadProbability() {
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final String dictVersion = Long.toString(System.currentTimeMillis());
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File trieFile = null;
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try {
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trieFile = createEmptyDictionaryAndGetTrieFile(dictVersion);
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} catch (IOException e) {
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fail("IOException while writing an initial dictionary : " + e);
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}
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final BinaryDictionary binaryDictionary = new BinaryDictionary(trieFile.getAbsolutePath(),
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0 /* offset */, trieFile.length(), true /* useFullEditDistance */,
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Locale.getDefault(), TEST_LOCALE, true /* isUpdatable */);
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final int frequency = 100;
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binaryDictionary.addUnigramWord("a", frequency);
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binaryDictionary.addUnigramWord("aaa", frequency);
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binaryDictionary.addUnigramWord("ab", frequency);
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assertEquals(frequency, binaryDictionary.getFrequency("a"));
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assertEquals(frequency, binaryDictionary.getFrequency("aaa"));
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assertEquals(frequency, binaryDictionary.getFrequency("ab"));
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}
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public static int getCalculatedBigramProbabiliy(final BinaryDictionary binaryDictionary,
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final int unigramFrequency, final int bigramFrequency) {
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final int bigramFrequencyDiff = BinaryDictEncoderUtils.getBigramFrequencyDiff(
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unigramFrequency, bigramFrequency);
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return binaryDictionary.calculateProbability(unigramFrequency, bigramFrequencyDiff);
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}
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// TODO: Add large tests.
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public void testReadBigrams() {
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final String dictVersion = Long.toString(System.currentTimeMillis());
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File trieFile = null;
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try {
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trieFile = createEmptyDictionaryAndGetTrieFile(dictVersion);
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} catch (IOException e) {
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fail("IOException while writing an initial dictionary : " + e);
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}
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final BinaryDictionary binaryDictionary = new BinaryDictionary(trieFile.getAbsolutePath(),
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0 /* offset */, trieFile.length(), true /* useFullEditDistance */,
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Locale.getDefault(), TEST_LOCALE, true /* isUpdatable */);
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final int unigramFrequency = 1;
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final int bigramFrequency0 = 10;
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final int bigramFrequency1 = 1;
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final int bigramFrequency2 = 15;
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binaryDictionary.addUnigramWord("a", unigramFrequency);
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binaryDictionary.addUnigramWord("aaa", unigramFrequency);
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binaryDictionary.addUnigramWord("ab", unigramFrequency);
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binaryDictionary.addBigramWords("a", "aaa", bigramFrequency0);
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binaryDictionary.addBigramWords("a", "ab", bigramFrequency1);
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binaryDictionary.addBigramWords("aaa", "ab", bigramFrequency2);
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assertEquals(binaryDictionary.calculateProbability(unigramFrequency,
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bigramFrequency0), binaryDictionary.getBigramProbability("a", "aaa"));
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assertEquals(binaryDictionary.calculateProbability(unigramFrequency,
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bigramFrequency1), binaryDictionary.getBigramProbability("a", "ab"));
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assertEquals(binaryDictionary.calculateProbability(unigramFrequency,
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bigramFrequency2), binaryDictionary.getBigramProbability("aaa", "ab"));
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assertFalse(binaryDictionary.isValidBigram("aaa", "a"));
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assertFalse(binaryDictionary.isValidBigram("ab", "a"));
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assertFalse(binaryDictionary.isValidBigram("ab", "aaa"));
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}
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// TODO: Add large tests.
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public void testWriteUnigrams() {
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final String dictVersion = Long.toString(System.currentTimeMillis());
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File trieFile = null;
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try {
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trieFile = createEmptyDictionaryAndGetTrieFile(dictVersion);
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} catch (IOException e) {
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fail("IOException while writing an initial dictionary : " + e);
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}
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final BinaryDictionary binaryDictionary = new BinaryDictionary(trieFile.getAbsolutePath(),
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0 /* offset */, trieFile.length(), true /* useFullEditDistance */,
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Locale.getDefault(), TEST_LOCALE, true /* isUpdatable */);
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final int probability = 100;
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binaryDictionary.addUnigramWord("aaa", probability);
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binaryDictionary.addUnigramWord("abc", probability);
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binaryDictionary.addUnigramWord("bcd", probability);
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binaryDictionary.addUnigramWord("x", probability);
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binaryDictionary.addUnigramWord("y", probability);
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assertEquals(probability, binaryDictionary.getFrequency("aaa"));
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assertEquals(probability, binaryDictionary.getFrequency("abc"));
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assertEquals(probability, binaryDictionary.getFrequency("bcd"));
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assertEquals(probability, binaryDictionary.getFrequency("x"));
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assertEquals(probability, binaryDictionary.getFrequency("y"));
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}
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public void testWriteBigrams() {
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final String dictVersion = Long.toString(System.currentTimeMillis());
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File trieFile = null;
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try {
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trieFile = createEmptyDictionaryAndGetTrieFile(dictVersion);
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} catch (IOException e) {
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fail("IOException while writing an initial dictionary : " + e);
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}
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final BinaryDictionary binaryDictionary = new BinaryDictionary(trieFile.getAbsolutePath(),
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0 /* offset */, trieFile.length(), true /* useFullEditDistance */,
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Locale.getDefault(), TEST_LOCALE, true /* isUpdatable */);
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final int unigramProbability = 100;
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final int bigramProbability = 10;
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binaryDictionary.addUnigramWord("aaa", unigramProbability);
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binaryDictionary.addUnigramWord("abb", unigramProbability);
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binaryDictionary.addUnigramWord("bcc", unigramProbability);
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binaryDictionary.addBigramWords("aaa", "abb", bigramProbability);
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binaryDictionary.addBigramWords("aaa", "bcc", bigramProbability);
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binaryDictionary.addBigramWords("abb", "aaa", bigramProbability);
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binaryDictionary.addBigramWords("abb", "bcc", bigramProbability);
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final int probability = binaryDictionary.calculateProbability(unigramProbability,
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bigramProbability);
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assertEquals(true, binaryDictionary.isValidBigram("aaa", "abb"));
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assertEquals(true, binaryDictionary.isValidBigram("aaa", "bcc"));
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assertEquals(true, binaryDictionary.isValidBigram("abb", "aaa"));
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assertEquals(true, binaryDictionary.isValidBigram("abb", "bcc"));
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assertEquals(probability, binaryDictionary.getBigramProbability("aaa", "abb"));
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assertEquals(probability, binaryDictionary.getBigramProbability("aaa", "bcc"));
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assertEquals(probability, binaryDictionary.getBigramProbability("abb", "aaa"));
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assertEquals(probability, binaryDictionary.getBigramProbability("abb", "bcc"));
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}
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public void testRemoveBigramWords() {
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final String dictVersion = Long.toString(System.currentTimeMillis());
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File trieFile = null;
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try {
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trieFile = createEmptyDictionaryAndGetTrieFile(dictVersion);
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} catch (IOException e) {
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fail("IOException while writing an initial dictionary : " + e);
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}
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final BinaryDictionary binaryDictionary = new BinaryDictionary(trieFile.getAbsolutePath(),
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0 /* offset */, trieFile.length(), true /* useFullEditDistance */,
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Locale.getDefault(), TEST_LOCALE, true /* isUpdatable */);
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final int unigramProbability = 100;
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final int bigramProbability = 10;
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binaryDictionary.addUnigramWord("aaa", unigramProbability);
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binaryDictionary.addUnigramWord("abb", unigramProbability);
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binaryDictionary.addUnigramWord("bcc", unigramProbability);
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binaryDictionary.addBigramWords("aaa", "abb", bigramProbability);
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binaryDictionary.addBigramWords("aaa", "bcc", bigramProbability);
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binaryDictionary.addBigramWords("abb", "aaa", bigramProbability);
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binaryDictionary.addBigramWords("abb", "bcc", bigramProbability);
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assertEquals(true, binaryDictionary.isValidBigram("aaa", "abb"));
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assertEquals(true, binaryDictionary.isValidBigram("aaa", "bcc"));
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assertEquals(true, binaryDictionary.isValidBigram("abb", "aaa"));
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assertEquals(true, binaryDictionary.isValidBigram("abb", "bcc"));
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binaryDictionary.removeBigramWords("aaa", "abb");
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assertEquals(false, binaryDictionary.isValidBigram("aaa", "abb"));
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binaryDictionary.addBigramWords("aaa", "abb", bigramProbability);
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assertEquals(true, binaryDictionary.isValidBigram("aaa", "abb"));
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binaryDictionary.removeBigramWords("aaa", "bcc");
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assertEquals(false, binaryDictionary.isValidBigram("aaa", "bcc"));
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binaryDictionary.removeBigramWords("abb", "aaa");
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assertEquals(false, binaryDictionary.isValidBigram("abb", "aaa"));
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binaryDictionary.removeBigramWords("abb", "bcc");
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assertEquals(false, binaryDictionary.isValidBigram("abb", "bcc"));
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binaryDictionary.removeBigramWords("aaa", "abb");
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// Test remove non-existing bigram operation.
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binaryDictionary.removeBigramWords("aaa", "abb");
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binaryDictionary.removeBigramWords("bcc", "aaa");
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}
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public void testFlushDictionary() {
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final String dictVersion = Long.toString(System.currentTimeMillis());
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File trieFile = null;
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try {
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trieFile = createEmptyDictionaryAndGetTrieFile(dictVersion);
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} catch (IOException e) {
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fail("IOException while writing an initial dictionary : " + e);
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}
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BinaryDictionary binaryDictionary = new BinaryDictionary(trieFile.getAbsolutePath(),
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0 /* offset */, trieFile.length(), true /* useFullEditDistance */,
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Locale.getDefault(), TEST_LOCALE, true /* isUpdatable */);
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final int probability = 100;
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binaryDictionary.addUnigramWord("aaa", probability);
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binaryDictionary.addUnigramWord("abcd", probability);
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// Close without flushing.
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binaryDictionary.close();
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binaryDictionary = new BinaryDictionary(trieFile.getAbsolutePath(),
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0 /* offset */, trieFile.length(), true /* useFullEditDistance */,
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Locale.getDefault(), TEST_LOCALE, true /* isUpdatable */);
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assertEquals(Dictionary.NOT_A_PROBABILITY, binaryDictionary.getFrequency("aaa"));
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assertEquals(Dictionary.NOT_A_PROBABILITY, binaryDictionary.getFrequency("abcd"));
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binaryDictionary.addUnigramWord("aaa", probability);
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binaryDictionary.addUnigramWord("abcd", probability);
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binaryDictionary.flush();
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binaryDictionary.close();
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binaryDictionary = new BinaryDictionary(trieFile.getAbsolutePath(),
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0 /* offset */, trieFile.length(), true /* useFullEditDistance */,
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Locale.getDefault(), TEST_LOCALE, true /* isUpdatable */);
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assertEquals(probability, binaryDictionary.getFrequency("aaa"));
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assertEquals(probability, binaryDictionary.getFrequency("abcd"));
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binaryDictionary.addUnigramWord("bcde", probability);
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binaryDictionary.flush();
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binaryDictionary.close();
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binaryDictionary = new BinaryDictionary(trieFile.getAbsolutePath(),
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0 /* offset */, trieFile.length(), true /* useFullEditDistance */,
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Locale.getDefault(), TEST_LOCALE, true /* isUpdatable */);
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assertEquals(probability, binaryDictionary.getFrequency("bcde"));
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binaryDictionary.close();
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}
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public void testFlushWithGCDictionary() {
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final String dictVersion = Long.toString(System.currentTimeMillis());
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File trieFile = null;
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try {
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trieFile = createEmptyDictionaryAndGetTrieFile(dictVersion);
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} catch (IOException e) {
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fail("IOException while writing an initial dictionary : " + e);
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}
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BinaryDictionary binaryDictionary = new BinaryDictionary(trieFile.getAbsolutePath(),
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0 /* offset */, trieFile.length(), true /* useFullEditDistance */,
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Locale.getDefault(), TEST_LOCALE, true /* isUpdatable */);
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final int unigramProbability = 100;
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final int bigramProbability = 10;
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binaryDictionary.addUnigramWord("aaa", unigramProbability);
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binaryDictionary.addUnigramWord("abb", unigramProbability);
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binaryDictionary.addUnigramWord("bcc", unigramProbability);
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binaryDictionary.addBigramWords("aaa", "abb", bigramProbability);
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binaryDictionary.addBigramWords("aaa", "bcc", bigramProbability);
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binaryDictionary.addBigramWords("abb", "aaa", bigramProbability);
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binaryDictionary.addBigramWords("abb", "bcc", bigramProbability);
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binaryDictionary.flushWithGC();
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binaryDictionary.close();
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binaryDictionary = new BinaryDictionary(trieFile.getAbsolutePath(),
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0 /* offset */, trieFile.length(), true /* useFullEditDistance */,
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Locale.getDefault(), TEST_LOCALE, true /* isUpdatable */);
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final int probability = binaryDictionary.calculateProbability(unigramProbability,
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bigramProbability);
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assertEquals(unigramProbability, binaryDictionary.getFrequency("aaa"));
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assertEquals(unigramProbability, binaryDictionary.getFrequency("abb"));
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assertEquals(unigramProbability, binaryDictionary.getFrequency("bcc"));
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assertEquals(probability, binaryDictionary.getBigramProbability("aaa", "abb"));
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assertEquals(probability, binaryDictionary.getBigramProbability("aaa", "bcc"));
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assertEquals(probability, binaryDictionary.getBigramProbability("abb", "aaa"));
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assertEquals(probability, binaryDictionary.getBigramProbability("abb", "bcc"));
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assertEquals(false, binaryDictionary.isValidBigram("bcc", "aaa"));
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assertEquals(false, binaryDictionary.isValidBigram("bcc", "bbc"));
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assertEquals(false, binaryDictionary.isValidBigram("aaa", "aaa"));
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binaryDictionary.flushWithGC();
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binaryDictionary.close();
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}
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}
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