124 lines
5.9 KiB
Java
124 lines
5.9 KiB
Java
/*
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* Copyright (C) 2012 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.dicttool;
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import com.android.inputmethod.latin.Dictionary;
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import com.android.inputmethod.latin.makedict.BinaryDictIOUtils;
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import com.android.inputmethod.latin.makedict.DictDecoder;
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import com.android.inputmethod.latin.makedict.DictEncoder;
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import com.android.inputmethod.latin.makedict.DictionaryHeader;
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import com.android.inputmethod.latin.makedict.FormatSpec;
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import com.android.inputmethod.latin.makedict.FormatSpec.DictionaryOptions;
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import com.android.inputmethod.latin.makedict.FormatSpec.FormatOptions;
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import com.android.inputmethod.latin.makedict.FusionDictionary;
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import com.android.inputmethod.latin.makedict.FusionDictionary.PtNodeArray;
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import com.android.inputmethod.latin.makedict.ProbabilityInfo;
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import com.android.inputmethod.latin.makedict.UnsupportedFormatException;
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import com.android.inputmethod.latin.makedict.Ver2DictEncoder;
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import junit.framework.TestCase;
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import java.io.File;
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import java.io.BufferedOutputStream;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.util.HashMap;
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/**
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* Unit tests for BinaryDictOffdeviceUtils
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*/
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public class BinaryDictOffdeviceUtilsTests extends TestCase {
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private static final int TEST_FREQ = 37; // Some arbitrary value unlikely to happen by chance
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public void testGetRawDictWorks() throws IOException, UnsupportedFormatException {
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final String VERSION = "1";
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final String LOCALE = "test";
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final String ID = "main:test";
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// Create a thrice-compressed dictionary file.
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final DictionaryOptions testOptions = new DictionaryOptions(new HashMap<String, String>());
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testOptions.mAttributes.put(DictionaryHeader.DICTIONARY_VERSION_KEY, VERSION);
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testOptions.mAttributes.put(DictionaryHeader.DICTIONARY_LOCALE_KEY, LOCALE);
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testOptions.mAttributes.put(DictionaryHeader.DICTIONARY_ID_KEY, ID);
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final FusionDictionary dict = new FusionDictionary(new PtNodeArray(), testOptions);
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dict.add("foo", new ProbabilityInfo(TEST_FREQ), null, false /* isNotAWord */);
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dict.add("fta", new ProbabilityInfo(1), null, false /* isNotAWord */);
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dict.add("ftb", new ProbabilityInfo(1), null, false /* isNotAWord */);
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dict.add("bar", new ProbabilityInfo(1), null, false /* isNotAWord */);
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dict.add("fool", new ProbabilityInfo(1), null, false /* isNotAWord */);
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final File dst = File.createTempFile("testGetRawDict", ".tmp");
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dst.deleteOnExit();
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final OutputStream out = Compress.getCompressedStream(
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Compress.getCompressedStream(
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Compress.getCompressedStream(
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new BufferedOutputStream(new FileOutputStream(dst)))));
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final DictEncoder dictEncoder = new Ver2DictEncoder(out);
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dictEncoder.writeDictionary(dict, new FormatOptions(2, false));
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// Test for an actually compressed dictionary and its contents
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final BinaryDictOffdeviceUtils.DecoderChainSpec decodeSpec =
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BinaryDictOffdeviceUtils.getRawDictionaryOrNull(dst);
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for (final String step : decodeSpec.mDecoderSpec) {
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assertEquals("Wrong decode spec", BinaryDictOffdeviceUtils.COMPRESSION, step);
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}
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assertEquals("Wrong decode spec", 3, decodeSpec.mDecoderSpec.size());
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final DictDecoder dictDecoder = BinaryDictIOUtils.getDictDecoder(decodeSpec.mFile, 0,
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decodeSpec.mFile.length());
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final FusionDictionary resultDict =
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dictDecoder.readDictionaryBinary(false /* deleteDictIfBroken */);
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assertEquals("Wrong version attribute", VERSION, resultDict.mOptions.mAttributes.get(
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DictionaryHeader.DICTIONARY_VERSION_KEY));
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assertEquals("Wrong locale attribute", LOCALE, resultDict.mOptions.mAttributes.get(
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DictionaryHeader.DICTIONARY_LOCALE_KEY));
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assertEquals("Wrong id attribute", ID, resultDict.mOptions.mAttributes.get(
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DictionaryHeader.DICTIONARY_ID_KEY));
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assertEquals("Dictionary can't be read back correctly",
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FusionDictionary.findWordInTree(resultDict.mRootNodeArray, "foo").getProbability(),
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TEST_FREQ);
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}
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public void testGetRawDictFails() throws IOException {
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// Randomly create some 4k file containing garbage
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final File dst = File.createTempFile("testGetRawDict", ".tmp");
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dst.deleteOnExit();
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final OutputStream out = new BufferedOutputStream(new FileOutputStream(dst));
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for (int i = 0; i < 1024; ++i) {
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out.write(0x12345678);
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}
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out.close();
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// Test that a random data file actually fails
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assertNull("Wrongly identified data file",
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BinaryDictOffdeviceUtils.getRawDictionaryOrNull(dst));
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final File gzDst = File.createTempFile("testGetRawDict", ".tmp");
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gzDst.deleteOnExit();
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final OutputStream gzOut =
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Compress.getCompressedStream(new BufferedOutputStream(new FileOutputStream(gzDst)));
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for (int i = 0; i < 1024; ++i) {
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gzOut.write(0x12345678);
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}
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gzOut.close();
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// Test that a compressed random data file actually fails
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assertNull("Wrongly identified data file",
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BinaryDictOffdeviceUtils.getRawDictionaryOrNull(gzDst));
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}
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}
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