LatinIME/tools/dicttool/tests/com/android/inputmethod/latin/makedict/FusionDictionaryTest.java

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/*
* Copyright (C) 2013 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 com.android.inputmethod.latin.makedict.FusionDictionary;
import com.android.inputmethod.latin.makedict.FusionDictionary.PtNode;
import com.android.inputmethod.latin.makedict.FusionDictionary.DictionaryOptions;
import com.android.inputmethod.latin.makedict.FusionDictionary.PtNodeArray;
import com.android.inputmethod.latin.makedict.WordProperty;
import junit.framework.TestCase;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Random;
/**
* Unit tests for FusionDictionary.
*/
public class FusionDictionaryTest extends TestCase {
private static final ArrayList<String> sWords = new ArrayList<String>();
private static final int MAX_UNIGRAMS = 1000;
private void prepare(final long seed) {
System.out.println("Seed is " + seed);
final Random random = new Random(seed);
sWords.clear();
generateWords(MAX_UNIGRAMS, random);
}
/**
* Generates a random word.
*/
private String generateWord(final Random random) {
StringBuilder builder = new StringBuilder("a");
int count = random.nextInt() % 30;
while (count > 0) {
final long r = Math.abs(random.nextInt());
if (r < 0) continue;
// Don't insert 0~20, but insert any other code point.
// Code points are in the range 0~0x10FFFF.
if (builder.length() < 7)
builder.appendCodePoint((int)(20 +r % (0x10FFFF - 20)));
--count;
}
if (builder.length() == 1) return generateWord(random);
return builder.toString();
}
private void generateWords(final int number, final Random random) {
while (sWords.size() < number) {
sWords.add(generateWord(random));
}
}
private void checkDictionary(final FusionDictionary dict, final ArrayList<String> words,
int limit) {
assertNotNull(dict);
for (final String word : words) {
if (--limit < 0) return;
final PtNode ptNode = FusionDictionary.findWordInTree(dict.mRootNodeArray, word);
assertNotNull(ptNode);
}
}
private String dumpWord(final String word) {
final StringBuilder sb = new StringBuilder("");
for (int i = 0; i < word.length(); i = word.offsetByCodePoints(i, 1)) {
sb.append(word.codePointAt(i));
sb.append(" ");
}
return sb.toString();
}
private void dumpDict(final FusionDictionary dict) {
for (WordProperty wordProperty : dict) {
System.out.println("Word " + dumpWord(wordProperty.mWord));
}
}
// Test the flattened array contains the expected number of nodes, and
// that it does not contain any duplicates.
public void testFusion() {
final FusionDictionary dict = new FusionDictionary(new PtNodeArray(),
new DictionaryOptions(new HashMap<String, String>()));
final long time = System.currentTimeMillis();
prepare(time);
for (int i = 0; i < sWords.size(); ++i) {
System.out.println("Adding in pos " + i + " : " + dumpWord(sWords.get(i)));
dict.add(sWords.get(i), new ProbabilityInfo(180), null, false);
dumpDict(dict);
checkDictionary(dict, sWords, i);
}
}
}