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Akifumi Yoshimoto authoredAkifumi Yoshimoto authored
BinaryDictDecoderEncoderTests.java 33.08 KiB
/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.inputmethod.latin.makedict;
import android.test.AndroidTestCase;
import android.test.suitebuilder.annotation.LargeTest;
import android.util.Log;
import android.util.Pair;
import android.util.SparseArray;
import com.android.inputmethod.latin.BinaryDictionary;
import com.android.inputmethod.latin.makedict.BinaryDictDecoderUtils.CharEncoding;
import com.android.inputmethod.latin.makedict.BinaryDictDecoderUtils.DictBuffer;
import com.android.inputmethod.latin.makedict.FormatSpec.FormatOptions;
import com.android.inputmethod.latin.makedict.FusionDictionary.PtNode;
import com.android.inputmethod.latin.makedict.FusionDictionary.PtNodeArray;
import com.android.inputmethod.latin.utils.BinaryDictionaryUtils;
import com.android.inputmethod.latin.utils.ByteArrayDictBuffer;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Locale;
import java.util.Map.Entry;
import java.util.Random;
import java.util.Set;
import java.util.TreeMap;
/**
* Unit tests for BinaryDictDecoderUtils and BinaryDictEncoderUtils.
*/
@LargeTest
public class BinaryDictDecoderEncoderTests extends AndroidTestCase {
private static final String TAG = BinaryDictDecoderEncoderTests.class.getSimpleName();
private static final int DEFAULT_MAX_UNIGRAMS = 300;
private static final int DEFAULT_CODE_POINT_SET_SIZE = 50;
private static final int LARGE_CODE_POINT_SET_SIZE = 300;
private static final int UNIGRAM_FREQ = 10;
private static final int BIGRAM_FREQ = 50;
private static final int TOLERANCE_OF_BIGRAM_FREQ = 5;
private static final int NUM_OF_NODES_HAVING_SHORTCUTS = 50;
private static final int NUM_OF_SHORTCUTS = 5;
private static final ArrayList<String> sWords = new ArrayList<>();
private static final ArrayList<String> sWordsWithVariousCodePoints = new ArrayList<>();
private static final SparseArray<List<Integer>> sEmptyBigrams = new SparseArray<>();
private static final SparseArray<List<Integer>> sStarBigrams = new SparseArray<>();
private static final SparseArray<List<Integer>> sChainBigrams = new SparseArray<>();
private static final HashMap<String, List<String>> sShortcuts = new HashMap<>();
public BinaryDictDecoderEncoderTests() {
this(System.currentTimeMillis(), DEFAULT_MAX_UNIGRAMS); }
public BinaryDictDecoderEncoderTests(final long seed, final int maxUnigrams) {
super();
BinaryDictionaryUtils.setCurrentTimeForTest(0);
Log.e(TAG, "Testing dictionary: seed is " + seed);
final Random random = new Random(seed);
sWords.clear();
sWordsWithVariousCodePoints.clear();
generateWords(maxUnigrams, 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>());
// MAX - 1 because we added one above already
final int maxBigrams = Math.min(sWords.size(), FormatSpec.MAX_BIGRAMS_IN_A_PTNODE - 1);
for (int i = 1; i < maxBigrams; ++i) {
sStarBigrams.get(0).add(i);
}
sShortcuts.clear();
for (int i = 0; i < NUM_OF_NODES_HAVING_SHORTCUTS; ++i) {
final int from = Math.abs(random.nextInt()) % sWords.size();
sShortcuts.put(sWords.get(from), new ArrayList<String>());
for (int j = 0; j < NUM_OF_SHORTCUTS; ++j) {
final int to = Math.abs(random.nextInt()) % sWords.size();
sShortcuts.get(sWords.get(from)).add(sWords.get(to));
}
}
}
@Override
protected void setUp() throws Exception {
super.setUp();
BinaryDictionaryUtils.setCurrentTimeForTest(0);
}
@Override
protected void tearDown() throws Exception {
// Quit test mode.
BinaryDictionaryUtils.setCurrentTimeForTest(-1);
super.tearDown();
}
private void generateWords(final int number, final Random random) {
final int[] codePointSet = CodePointUtils.generateCodePointSet(DEFAULT_CODE_POINT_SET_SIZE,
random);
final Set<String> wordSet = new HashSet<>();
while (wordSet.size() < number) {
wordSet.add(CodePointUtils.generateWord(random, codePointSet));
}
sWords.addAll(wordSet);
final int[] largeCodePointSet = CodePointUtils.generateCodePointSet(
LARGE_CODE_POINT_SET_SIZE, random);
wordSet.clear();
while (wordSet.size() < number) {
wordSet.add(CodePointUtils.generateWord(random, largeCodePointSet));
}
sWordsWithVariousCodePoints.addAll(wordSet);
}
/**
* Adds unigrams to the dictionary.
*/ private void addUnigrams(final int number, final FusionDictionary dict,
final List<String> words, final HashMap<String, List<String>> shortcutMap) {
for (int i = 0; i < number; ++i) {
final String word = words.get(i);
final ArrayList<WeightedString> shortcuts = new ArrayList<>();
if (shortcutMap != null && shortcutMap.containsKey(word)) {
for (final String shortcut : shortcutMap.get(word)) {
shortcuts.add(new WeightedString(shortcut, UNIGRAM_FREQ));
}
}
dict.add(word, new ProbabilityInfo(UNIGRAM_FREQ),
(shortcutMap == null) ? null : shortcuts, false /* isNotAWord */);
}
}
private void addBigrams(final FusionDictionary dict,
final List<String> words,
final SparseArray<List<Integer>> bigrams) {
for (int i = 0; i < bigrams.size(); ++i) {
final int w1 = bigrams.keyAt(i);
for (int w2 : bigrams.valueAt(i)) {
dict.setBigram(words.get(w1), words.get(w2), new ProbabilityInfo(BIGRAM_FREQ));
}
}
}
// The following is useful to dump the dictionary into a textual file, but it can't compile
// on-device, so it's commented out.
// private void dumpToCombinedFileForDebug(final FusionDictionary dict, final String filename)
// throws IOException {
// com.android.inputmethod.latin.dicttool.CombinedInputOutput.writeDictionaryCombined(
// new java.io.FileWriter(new File(filename)), dict);
// }
private long timeWritingDictToFile(final File file, final FusionDictionary dict,
final FormatSpec.FormatOptions formatOptions) {
long now = -1, diff = -1;
try {
final DictEncoder dictEncoder = BinaryDictUtils.getDictEncoder(file, formatOptions);
now = System.currentTimeMillis();
// If you need to dump the dict to a textual file, uncomment the line below and the
// function above
// dumpToCombinedFileForDebug(file, "/tmp/foo");
dictEncoder.writeDictionary(dict, formatOptions);
diff = System.currentTimeMillis() - now;
} catch (IOException e) {
Log.e(TAG, "IO exception while writing file", e);
} catch (UnsupportedFormatException e) {
Log.e(TAG, "UnsupportedFormatException", e);
}
return diff;
}
private void checkDictionary(final FusionDictionary dict, final List<String> words,
final SparseArray<List<Integer>> bigrams,
final HashMap<String, List<String>> shortcutMap) {
assertNotNull(dict);
// check unigram
for (final String word : words) {
final PtNode ptNode = FusionDictionary.findWordInTree(dict.mRootNodeArray, word);
assertNotNull(ptNode);
}
// check bigram
for (int i = 0; i < bigrams.size(); ++i) { final int w1 = bigrams.keyAt(i);
for (final int w2 : bigrams.valueAt(i)) {
final PtNode ptNode = FusionDictionary.findWordInTree(dict.mRootNodeArray,
words.get(w1));
assertNotNull(words.get(w1) + "," + words.get(w2), ptNode.getBigram(words.get(w2)));
}
}
// check shortcut
if (shortcutMap != null) {
for (final Entry<String, List<String>> entry : shortcutMap.entrySet()) {
assertTrue(words.contains(entry.getKey()));
final PtNode ptNode = FusionDictionary.findWordInTree(dict.mRootNodeArray,
entry.getKey());
for (final String word : entry.getValue()) {
assertNotNull("shortcut not found: " + entry.getKey() + ", " + word,
ptNode.getShortcut(word));
}
}
}
}
private String outputOptions(final int bufferType,
final FormatSpec.FormatOptions formatOptions) {
String result = " : buffer type = "
+ ((bufferType == BinaryDictUtils.USE_BYTE_BUFFER) ? "byte buffer" : "byte array");
return result + " : version = " + formatOptions.mVersion;
}
// Tests for readDictionaryBinary and writeDictionaryBinary
private long timeReadingAndCheckDict(final File file, final List<String> words,
final SparseArray<List<Integer>> bigrams,
final HashMap<String, List<String>> shortcutMap, final int bufferType) {
long now, diff = -1;
FusionDictionary dict = null;
try {
final DictDecoder dictDecoder = BinaryDictIOUtils.getDictDecoder(file, 0, file.length(),
bufferType);
now = System.currentTimeMillis();
dict = dictDecoder.readDictionaryBinary(false /* deleteDictIfBroken */);
diff = System.currentTimeMillis() - now;
} catch (IOException e) {
Log.e(TAG, "IOException while reading dictionary", e);
} catch (UnsupportedFormatException e) {
Log.e(TAG, "Unsupported format", e);
}
checkDictionary(dict, words, bigrams, shortcutMap);
return diff;
}
// Tests for readDictionaryBinary and writeDictionaryBinary
private String runReadAndWrite(final List<String> words,
final SparseArray<List<Integer>> bigrams, final HashMap<String, List<String>> shortcuts,
final int bufferType, final FormatSpec.FormatOptions formatOptions,
final String message) {
final String dictName = "runReadAndWrite";
final String dictVersion = Long.toString(System.currentTimeMillis());
final File file = BinaryDictUtils.getDictFile(dictName, dictVersion, formatOptions,
getContext().getCacheDir());
final FusionDictionary dict = new FusionDictionary(new PtNodeArray(),
BinaryDictUtils.makeDictionaryOptions(dictName, dictVersion, formatOptions));
addUnigrams(words.size(), dict, words, shortcuts);
addBigrams(dict, words, bigrams);
checkDictionary(dict, words, bigrams, shortcuts);
final long write = timeWritingDictToFile(file, dict, formatOptions);
final long read = timeReadingAndCheckDict(file, words, bigrams, shortcuts, bufferType);
return "PROF: read=" + read + "ms, write=" + write + "ms :" + message
+ " : " + outputOptions(bufferType, formatOptions);
}
private void runReadAndWriteTests(final List<String> results, final int bufferType,
final FormatSpec.FormatOptions formatOptions) {
results.add(runReadAndWrite(sWords, sEmptyBigrams, null /* shortcuts */, bufferType,
formatOptions, "unigram"));
results.add(runReadAndWrite(sWords, sChainBigrams, null /* shortcuts */, bufferType,
formatOptions, "chain"));
results.add(runReadAndWrite(sWords, sStarBigrams, null /* shortcuts */, bufferType,
formatOptions, "star"));
results.add(runReadAndWrite(sWords, sEmptyBigrams, sShortcuts, bufferType, formatOptions,
"unigram with shortcuts"));
results.add(runReadAndWrite(sWords, sChainBigrams, sShortcuts, bufferType, formatOptions,
"chain with shortcuts"));
results.add(runReadAndWrite(sWords, sStarBigrams, sShortcuts, bufferType, formatOptions,
"star with shortcuts"));
results.add(runReadAndWrite(sWordsWithVariousCodePoints, sEmptyBigrams,
null /* shortcuts */, bufferType, formatOptions,
"unigram with various code points"));
}
public void testCharacterTableIsPresent() throws IOException, UnsupportedFormatException {
final String[] wordSource = {"words", "used", "for", "testing", "a", "code point", "table"};
final List<String> words = Arrays.asList(wordSource);
final String correctCodePointTable = "toesdrniawuplgfcb ";
final String dictName = "codePointTableTest";
final String dictVersion = Long.toString(System.currentTimeMillis());
final String codePointTableAttribute = DictionaryHeader.CODE_POINT_TABLE_KEY;
final File file = new File(dictName);
// Write a test dictionary
final DictEncoder dictEncoder = new Ver2DictEncoder(file,
Ver2DictEncoder.CODE_POINT_TABLE_ON);
final FormatSpec.FormatOptions formatOptions =
new FormatSpec.FormatOptions(
FormatSpec.MINIMUM_SUPPORTED_VERSION_OF_CODE_POINT_TABLE);
final FusionDictionary sourcedict = new FusionDictionary(new PtNodeArray(),
BinaryDictUtils.makeDictionaryOptions(dictName, dictVersion, formatOptions));
addUnigrams(words.size(), sourcedict, words, null /* shortcutMap */);
dictEncoder.writeDictionary(sourcedict, formatOptions);
// Read the dictionary
final DictDecoder dictDecoder = BinaryDictIOUtils.getDictDecoder(file, 0, file.length(),
DictDecoder.USE_BYTEARRAY);
final DictionaryHeader fileHeader = dictDecoder.readHeader();
// Check if codePointTable is present
assertTrue("codePointTable is not present",
fileHeader.mDictionaryOptions.mAttributes.containsKey(codePointTableAttribute));
final String codePointTable =
fileHeader.mDictionaryOptions.mAttributes.get(codePointTableAttribute);
// Check if codePointTable is correct
assertEquals("codePointTable is incorrect", codePointTable, correctCodePointTable);
}
// Unit test for CharEncoding.readString and CharEncoding.writeString.
public void testCharEncoding() {
// the max length of a word in sWords is less than 50.
// See generateWords.
final byte[] buffer = new byte[50 * 3];
final DictBuffer dictBuffer = new ByteArrayDictBuffer(buffer);
for (final String word : sWords) {
Arrays.fill(buffer, (byte) 0);
CharEncoding.writeString(buffer, 0, word, null);
dictBuffer.position(0);
final String str = CharEncoding.readString(dictBuffer); assertEquals(word, str);
}
}
public void testReadAndWriteWithByteBuffer() {
final List<String> results = new ArrayList<>();
runReadAndWriteTests(results, BinaryDictUtils.USE_BYTE_BUFFER,
BinaryDictUtils.VERSION2_OPTIONS);
runReadAndWriteTests(results, BinaryDictUtils.USE_BYTE_BUFFER,
BinaryDictUtils.VERSION4_OPTIONS_WITHOUT_TIMESTAMP);
runReadAndWriteTests(results, BinaryDictUtils.USE_BYTE_BUFFER,
BinaryDictUtils.VERSION4_OPTIONS_WITH_TIMESTAMP);
for (final String result : results) {
Log.d(TAG, result);
}
}
public void testReadAndWriteWithByteArray() {
final List<String> results = new ArrayList<>();
runReadAndWriteTests(results, BinaryDictUtils.USE_BYTE_ARRAY,
BinaryDictUtils.VERSION2_OPTIONS);
runReadAndWriteTests(results, BinaryDictUtils.USE_BYTE_ARRAY,
BinaryDictUtils.VERSION4_OPTIONS_WITHOUT_TIMESTAMP);
runReadAndWriteTests(results, BinaryDictUtils.USE_BYTE_ARRAY,
BinaryDictUtils.VERSION4_OPTIONS_WITH_TIMESTAMP);
for (final String result : results) {
Log.d(TAG, result);
}
}
// Tests for readUnigramsAndBigramsBinary
private void checkWordMap(final List<String> expectedWords,
final SparseArray<List<Integer>> expectedBigrams,
final TreeMap<Integer, String> resultWords,
final TreeMap<Integer, Integer> resultFrequencies,
final TreeMap<Integer, ArrayList<PendingAttribute>> resultBigrams,
final boolean checkProbability) {
// check unigrams
final Set<String> actualWordsSet = new HashSet<>(resultWords.values());
final Set<String> expectedWordsSet = new HashSet<>(expectedWords);
assertEquals(actualWordsSet, expectedWordsSet);
if (checkProbability) {
for (int freq : resultFrequencies.values()) {
assertEquals(freq, UNIGRAM_FREQ);
}
}
// check bigrams
final HashMap<String, Set<String>> expBigrams = new HashMap<>();
for (int i = 0; i < expectedBigrams.size(); ++i) {
final String word1 = expectedWords.get(expectedBigrams.keyAt(i));
for (int w2 : expectedBigrams.valueAt(i)) {
if (expBigrams.get(word1) == null) {
expBigrams.put(word1, new HashSet<String>());
}
expBigrams.get(word1).add(expectedWords.get(w2));
}
}
final HashMap<String, Set<String>> actBigrams = new HashMap<>();
for (Entry<Integer, ArrayList<PendingAttribute>> entry : resultBigrams.entrySet()) {
final String word1 = resultWords.get(entry.getKey());
final int unigramFreq = resultFrequencies.get(entry.getKey());
for (PendingAttribute attr : entry.getValue()) {
final String word2 = resultWords.get(attr.mAddress);
if (actBigrams.get(word1) == null) { actBigrams.put(word1, new HashSet<String>());
}
actBigrams.get(word1).add(word2);
if (checkProbability) {
final int bigramFreq = BinaryDictIOUtils.reconstructBigramFrequency(
unigramFreq, attr.mFrequency);
assertTrue(Math.abs(bigramFreq - BIGRAM_FREQ) < TOLERANCE_OF_BIGRAM_FREQ);
}
}
}
assertEquals(actBigrams, expBigrams);
}
private long timeAndCheckReadUnigramsAndBigramsBinary(final File file, final List<String> words,
final SparseArray<List<Integer>> bigrams, final int bufferType,
final boolean checkProbability) {
final TreeMap<Integer, String> resultWords = new TreeMap<>();
final TreeMap<Integer, ArrayList<PendingAttribute>> resultBigrams = new TreeMap<>();
final TreeMap<Integer, Integer> resultFreqs = new TreeMap<>();
long now = -1, diff = -1;
try {
final DictDecoder dictDecoder = BinaryDictIOUtils.getDictDecoder(file, 0, file.length(),
bufferType);
now = System.currentTimeMillis();
dictDecoder.readUnigramsAndBigramsBinary(resultWords, resultFreqs, resultBigrams);
diff = System.currentTimeMillis() - now;
} catch (IOException e) {
Log.e(TAG, "IOException", e);
} catch (UnsupportedFormatException e) {
Log.e(TAG, "UnsupportedFormatException", e);
}
checkWordMap(words, bigrams, resultWords, resultFreqs, resultBigrams, checkProbability);
return diff;
}
private String runReadUnigramsAndBigramsBinary(final ArrayList<String> words,
final SparseArray<List<Integer>> bigrams, final int bufferType,
final FormatSpec.FormatOptions formatOptions, final String message) {
final String dictName = "runReadUnigrams";
final String dictVersion = Long.toString(System.currentTimeMillis());
final File file = BinaryDictUtils.getDictFile(dictName, dictVersion, formatOptions,
getContext().getCacheDir());
// making the dictionary from lists of words.
final FusionDictionary dict = new FusionDictionary(new PtNodeArray(),
BinaryDictUtils.makeDictionaryOptions(dictName, dictVersion, formatOptions));
addUnigrams(words.size(), dict, words, null /* shortcutMap */);
addBigrams(dict, words, bigrams);
timeWritingDictToFile(file, dict, formatOptions);
// Caveat: Currently, the Java code to read a v4 dictionary doesn't calculate the
// probability when there's a timestamp for the entry.
// TODO: Abandon the Java code, and implement the v4 dictionary reading code in native.
long wordMap = timeAndCheckReadUnigramsAndBigramsBinary(file, words, bigrams, bufferType,
!formatOptions.mHasTimestamp /* checkProbability */);
long fullReading = timeReadingAndCheckDict(file, words, bigrams, null /* shortcutMap */,
bufferType);
return "readDictionaryBinary=" + fullReading + ", readUnigramsAndBigramsBinary=" + wordMap
+ " : " + message + " : " + outputOptions(bufferType, formatOptions);
}
private void runReadUnigramsAndBigramsTests(final ArrayList<String> results,
final int bufferType, final FormatSpec.FormatOptions formatOptions) {
results.add(runReadUnigramsAndBigramsBinary(sWords, sEmptyBigrams, bufferType,
formatOptions, "unigram")); results.add(runReadUnigramsAndBigramsBinary(sWords, sChainBigrams, bufferType,
formatOptions, "chain"));
results.add(runReadUnigramsAndBigramsBinary(sWords, sStarBigrams, bufferType,
formatOptions, "star"));
}
public void testReadUnigramsAndBigramsBinaryWithByteBuffer() {
final ArrayList<String> results = new ArrayList<>();
runReadUnigramsAndBigramsTests(results, BinaryDictUtils.USE_BYTE_BUFFER,
BinaryDictUtils.VERSION2_OPTIONS);
for (final String result : results) {
Log.d(TAG, result);
}
}
public void testReadUnigramsAndBigramsBinaryWithByteArray() {
final ArrayList<String> results = new ArrayList<>();
runReadUnigramsAndBigramsTests(results, BinaryDictUtils.USE_BYTE_ARRAY,
BinaryDictUtils.VERSION2_OPTIONS);
for (final String result : results) {
Log.d(TAG, result);
}
}
// Tests for getTerminalPosition
private String getWordFromBinary(final DictDecoder dictDecoder, final int address) {
if (dictDecoder.getPosition() != 0) dictDecoder.setPosition(0);
DictionaryHeader fileHeader = null;
try {
fileHeader = dictDecoder.readHeader();
} catch (IOException e) {
return null;
} catch (UnsupportedFormatException e) {
return null;
}
if (fileHeader == null) return null;
return BinaryDictDecoderUtils.getWordAtPosition(dictDecoder, fileHeader.mBodyOffset,
address).mWord;
}
private long checkGetTerminalPosition(final DictDecoder dictDecoder, final String word,
final boolean contained) {
long diff = -1;
int position = -1;
try {
final long now = System.nanoTime();
position = dictDecoder.getTerminalPosition(word);
diff = System.nanoTime() - now;
} catch (IOException e) {
Log.e(TAG, "IOException while getTerminalPosition", e);
} catch (UnsupportedFormatException e) {
Log.e(TAG, "UnsupportedFormatException while getTerminalPosition", e);
}
assertEquals(FormatSpec.NOT_VALID_WORD != position, contained);
if (contained) assertEquals(getWordFromBinary(dictDecoder, position), word);
return diff;
}
private void runGetTerminalPosition(final ArrayList<String> words,
final SparseArray<List<Integer>> bigrams, final int bufferType,
final FormatOptions formatOptions, final String message) {
final String dictName = "testGetTerminalPosition";
final String dictVersion = Long.toString(System.currentTimeMillis());
final File file = BinaryDictUtils.getDictFile(dictName, dictVersion, formatOptions, getContext().getCacheDir());
final FusionDictionary dict = new FusionDictionary(new PtNodeArray(),
BinaryDictUtils.makeDictionaryOptions(dictName, dictVersion, formatOptions));
addUnigrams(sWords.size(), dict, sWords, null /* shortcutMap */);
addBigrams(dict, words, bigrams);
timeWritingDictToFile(file, dict, formatOptions);
final DictDecoder dictDecoder = BinaryDictIOUtils.getDictDecoder(file, 0, file.length(),
DictDecoder.USE_BYTEARRAY);
try {
dictDecoder.openDictBuffer();
} catch (IOException e) {
Log.e(TAG, "IOException while opening the buffer", e);
} catch (UnsupportedFormatException e) {
Log.e(TAG, "IOException while opening the buffer", e);
}
assertTrue("Can't get the buffer", dictDecoder.isDictBufferOpen());
try {
// too long word
final String longWord = "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz";
assertEquals(FormatSpec.NOT_VALID_WORD, dictDecoder.getTerminalPosition(longWord));
// null
assertEquals(FormatSpec.NOT_VALID_WORD, dictDecoder.getTerminalPosition(null));
// empty string
assertEquals(FormatSpec.NOT_VALID_WORD, dictDecoder.getTerminalPosition(""));
} catch (IOException e) {
} catch (UnsupportedFormatException e) {
}
// Test a word that is contained within the dictionary.
long sum = 0;
for (int i = 0; i < sWords.size(); ++i) {
final long time = checkGetTerminalPosition(dictDecoder, sWords.get(i), true);
sum += time == -1 ? 0 : time;
}
Log.d(TAG, "per search : " + (((double)sum) / sWords.size() / 1000000) + " : " + message
+ " : " + outputOptions(bufferType, formatOptions));
// Test a word that isn't contained within the dictionary.
final Random random = new Random((int)System.currentTimeMillis());
final int[] codePointSet = CodePointUtils.generateCodePointSet(DEFAULT_CODE_POINT_SET_SIZE,
random);
for (int i = 0; i < 1000; ++i) {
final String word = CodePointUtils.generateWord(random, codePointSet);
if (sWords.indexOf(word) != -1) continue;
checkGetTerminalPosition(dictDecoder, word, false);
}
}
private void runGetTerminalPositionTests(final int bufferType,
final FormatOptions formatOptions) {
runGetTerminalPosition(sWords, sEmptyBigrams, bufferType, formatOptions, "unigram");
}
public void testGetTerminalPosition() {
final ArrayList<String> results = new ArrayList<>();
runGetTerminalPositionTests(BinaryDictUtils.USE_BYTE_ARRAY,
BinaryDictUtils.VERSION2_OPTIONS);
runGetTerminalPositionTests(BinaryDictUtils.USE_BYTE_BUFFER,
BinaryDictUtils.VERSION2_OPTIONS);
for (final String result : results) {
Log.d(TAG, result);
}
}
public void testVer2DictGetWordProperty() {
final FormatOptions formatOptions = BinaryDictUtils.VERSION2_OPTIONS;
final ArrayList<String> words = sWords;
final HashMap<String, List<String>> shortcuts = sShortcuts;
final String dictName = "testGetWordProperty";
final String dictVersion = Long.toString(System.currentTimeMillis());
final FusionDictionary dict = new FusionDictionary(new PtNodeArray(),
BinaryDictUtils.makeDictionaryOptions(dictName, dictVersion, formatOptions));
addUnigrams(words.size(), dict, words, shortcuts);
addBigrams(dict, words, sEmptyBigrams);
final File file = BinaryDictUtils.getDictFile(dictName, dictVersion, formatOptions,
getContext().getCacheDir());
file.delete();
timeWritingDictToFile(file, dict, formatOptions);
final BinaryDictionary binaryDictionary = new BinaryDictionary(file.getAbsolutePath(),
0 /* offset */, file.length(), true /* useFullEditDistance */,
Locale.ENGLISH, dictName, false /* isUpdatable */);
for (final String word : words) {
final WordProperty wordProperty = binaryDictionary.getWordProperty(word,
false /* isBeginningOfSentence */);
assertEquals(word, wordProperty.mWord);
assertEquals(UNIGRAM_FREQ, wordProperty.getProbability());
if (shortcuts.containsKey(word)) {
assertEquals(shortcuts.get(word).size(), wordProperty.mShortcutTargets.size());
final List<String> shortcutList = shortcuts.get(word);
assertTrue(wordProperty.mHasShortcuts);
for (final WeightedString shortcutTarget : wordProperty.mShortcutTargets) {
assertTrue(shortcutList.contains(shortcutTarget.mWord));
assertEquals(UNIGRAM_FREQ, shortcutTarget.getProbability());
shortcutList.remove(shortcutTarget.mWord);
}
assertTrue(shortcutList.isEmpty());
}
}
}
public void testVer2DictIteration() {
final FormatOptions formatOptions = BinaryDictUtils.VERSION2_OPTIONS;
final ArrayList<String> words = sWords;
final HashMap<String, List<String>> shortcuts = sShortcuts;
final SparseArray<List<Integer>> bigrams = sEmptyBigrams;
final String dictName = "testGetWordProperty";
final String dictVersion = Long.toString(System.currentTimeMillis());
final FusionDictionary dict = new FusionDictionary(new PtNodeArray(),
BinaryDictUtils.makeDictionaryOptions(dictName, dictVersion, formatOptions));
addUnigrams(words.size(), dict, words, shortcuts);
addBigrams(dict, words, bigrams);
final File file = BinaryDictUtils.getDictFile(dictName, dictVersion, formatOptions,
getContext().getCacheDir());
timeWritingDictToFile(file, dict, formatOptions);
Log.d(TAG, file.getAbsolutePath());
final BinaryDictionary binaryDictionary = new BinaryDictionary(file.getAbsolutePath(),
0 /* offset */, file.length(), true /* useFullEditDistance */,
Locale.ENGLISH, dictName, false /* isUpdatable */);
final HashSet<String> wordSet = new HashSet<>(words);
final HashSet<Pair<String, String>> bigramSet = new HashSet<>();
for (int i = 0; i < words.size(); i++) {
final List<Integer> bigramList = bigrams.get(i);
if (bigramList != null) {
for (final Integer word1Index : bigramList) {
final String word1 = words.get(word1Index);
bigramSet.add(new Pair<>(words.get(i), word1));
}
}
}
int token = 0;
do { final BinaryDictionary.GetNextWordPropertyResult result =
binaryDictionary.getNextWordProperty(token);
final WordProperty wordProperty = result.mWordProperty;
final String word0 = wordProperty.mWord;
assertEquals(UNIGRAM_FREQ, wordProperty.mProbabilityInfo.mProbability);
wordSet.remove(word0);
if (shortcuts.containsKey(word0)) {
assertEquals(shortcuts.get(word0).size(), wordProperty.mShortcutTargets.size());
final List<String> shortcutList = shortcuts.get(word0);
assertNotNull(wordProperty.mShortcutTargets);
for (final WeightedString shortcutTarget : wordProperty.mShortcutTargets) {
assertTrue(shortcutList.contains(shortcutTarget.mWord));
assertEquals(UNIGRAM_FREQ, shortcutTarget.getProbability());
shortcutList.remove(shortcutTarget.mWord);
}
assertTrue(shortcutList.isEmpty());
}
if (wordProperty.mHasNgrams) {
for (final WeightedString bigramTarget : wordProperty.getBigrams()) {
final String word1 = bigramTarget.mWord;
final Pair<String, String> bigram = new Pair<>(word0, word1);
assertTrue(bigramSet.contains(bigram));
bigramSet.remove(bigram);
}
}
token = result.mNextToken;
} while (token != 0);
assertTrue(wordSet.isEmpty());
assertTrue(bigramSet.isEmpty());
}
}