LatinIME/tests/src/com/android/inputmethod/latin/personalization/UserHistoryDictionaryTests....

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/*
* 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.personalization;
import static org.junit.Assert.assertTrue;
import android.content.Context;
import android.support.test.InstrumentationRegistry;
import android.support.test.filters.LargeTest;
import android.support.test.runner.AndroidJUnit4;
import android.util.Log;
import com.android.inputmethod.latin.ExpandableBinaryDictionary;
import com.android.inputmethod.latin.utils.BinaryDictionaryUtils;
import java.io.File;
import java.util.Locale;
import java.util.Random;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
/**
* Unit tests for UserHistoryDictionary
*/
@LargeTest
@RunWith(AndroidJUnit4.class)
public class UserHistoryDictionaryTests {
private static final String TAG = UserHistoryDictionaryTests.class.getSimpleName();
private static final int WAIT_FOR_WRITING_FILE_IN_MILLISECONDS = 3000;
private static final String TEST_ACCOUNT = "account@example.com";
private int mCurrentTime = 0;
private Context getContext() {
return InstrumentationRegistry.getTargetContext();
}
private static void printAllFiles(final File dir) {
Log.d(TAG, dir.getAbsolutePath());
for (final File file : dir.listFiles()) {
Log.d(TAG, " " + file.getName());
}
}
private static void assertDictionaryExists(final UserHistoryDictionary dict,
final File dictFile) {
Log.d(TAG, "waiting for writing ...");
dict.waitAllTasksForTests();
if (!dictFile.exists()) {
try {
Log.d(TAG, dictFile + " is not existing. Wait "
+ WAIT_FOR_WRITING_FILE_IN_MILLISECONDS + " ms for writing.");
printAllFiles(dictFile.getParentFile());
Thread.sleep(WAIT_FOR_WRITING_FILE_IN_MILLISECONDS);
} catch (final InterruptedException e) {
Log.e(TAG, "Interrupted during waiting for writing the dict file.");
}
}
assertTrue("Following dictionary file doesn't exist: " + dictFile, dictFile.exists());
}
@Before
public void setUp() throws Exception {
resetCurrentTimeForTestMode();
UserHistoryDictionaryTestsHelper.removeAllTestDictFiles(
UserHistoryDictionaryTestsHelper.TEST_LOCALE_PREFIX, getContext());
}
@After
public void tearDown() throws Exception {
UserHistoryDictionaryTestsHelper.removeAllTestDictFiles(
UserHistoryDictionaryTestsHelper.TEST_LOCALE_PREFIX, getContext());
stopTestModeInNativeCode();
}
private void resetCurrentTimeForTestMode() {
mCurrentTime = 0;
setCurrentTimeForTestMode(mCurrentTime);
}
private static int setCurrentTimeForTestMode(final int currentTime) {
return BinaryDictionaryUtils.setCurrentTimeForTest(currentTime);
}
private static int stopTestModeInNativeCode() {
return BinaryDictionaryUtils.setCurrentTimeForTest(-1);
}
/**
* Clear all entries in the user history dictionary.
* @param dict the user history dictionary.
*/
private static void clearHistory(final UserHistoryDictionary dict) {
dict.waitAllTasksForTests();
dict.clear();
dict.close();
dict.waitAllTasksForTests();
}
private void doTestRandomWords(final String testAccount) {
Log.d(TAG, "This test can be used for profiling.");
Log.d(TAG, "Usage: please set UserHistoryDictionary.PROFILE_SAVE_RESTORE to true.");
final Locale dummyLocale = UserHistoryDictionaryTestsHelper.getDummyLocale("random_words");
final String dictName = UserHistoryDictionary.getUserHistoryDictName(
UserHistoryDictionary.NAME, dummyLocale,
null /* dictFile */,
testAccount /* account */);
final File dictFile = ExpandableBinaryDictionary.getDictFile(
getContext(), dictName, null /* dictFile */);
final UserHistoryDictionary dict = PersonalizationHelper.getUserHistoryDictionary(
getContext(), dummyLocale, testAccount);
clearHistory(dict);
final int numberOfWords = 1000;
final Random random = new Random(123456);
assertTrue(UserHistoryDictionaryTestsHelper.addAndWriteRandomWords(
dict, numberOfWords, random, true /* checksContents */, mCurrentTime));
assertDictionaryExists(dict, dictFile);
}
@Test
public void testRandomWords_NullAccount() {
doTestRandomWords(null /* testAccount */);
}
@Test
public void testRandomWords() {
doTestRandomWords(TEST_ACCOUNT);
}
@Test
public void testStressTestForSwitchingLanguagesAndAddingWords() {
doTestStressTestForSwitchingLanguagesAndAddingWords(TEST_ACCOUNT);
}
@Test
public void testStressTestForSwitchingLanguagesAndAddingWords_NullAccount() {
doTestStressTestForSwitchingLanguagesAndAddingWords(null /* testAccount */);
}
private void doTestStressTestForSwitchingLanguagesAndAddingWords(final String testAccount) {
final int numberOfLanguages = 2;
final int numberOfLanguageSwitching = 80;
final int numberOfWordsInsertedForEachLanguageSwitch = 100;
final File dictFiles[] = new File[numberOfLanguages];
final UserHistoryDictionary dicts[] = new UserHistoryDictionary[numberOfLanguages];
try {
final Random random = new Random(123456);
// Create filename suffixes for this test.
for (int i = 0; i < numberOfLanguages; i++) {
final Locale dummyLocale =
UserHistoryDictionaryTestsHelper.getDummyLocale("switching_languages" + i);
final String dictName = UserHistoryDictionary.getUserHistoryDictName(
UserHistoryDictionary.NAME, dummyLocale, null /* dictFile */,
testAccount /* account */);
dictFiles[i] = ExpandableBinaryDictionary.getDictFile(
getContext(), dictName, null /* dictFile */);
dicts[i] = PersonalizationHelper.getUserHistoryDictionary(getContext(),
dummyLocale, testAccount);
clearHistory(dicts[i]);
}
final long start = System.currentTimeMillis();
for (int i = 0; i < numberOfLanguageSwitching; i++) {
final int index = i % numberOfLanguages;
// Switch to dicts[index].
assertTrue(UserHistoryDictionaryTestsHelper.addAndWriteRandomWords(dicts[index],
numberOfWordsInsertedForEachLanguageSwitch,
random,
false /* checksContents */,
mCurrentTime));
}
final long end = System.currentTimeMillis();
Log.d(TAG, "testStressTestForSwitchingLanguageAndAddingWords took "
+ (end - start) + " ms");
} finally {
for (int i = 0; i < numberOfLanguages; i++) {
assertDictionaryExists(dicts[i], dictFiles[i]);
}
}
}
@Test
public void testAddManyWords() {
doTestAddManyWords(TEST_ACCOUNT);
}
@Test
public void testAddManyWords_NullAccount() {
doTestAddManyWords(null /* testAccount */);
}
private void doTestAddManyWords(final String testAccount) {
final Locale dummyLocale =
UserHistoryDictionaryTestsHelper.getDummyLocale("many_random_words");
final String dictName = UserHistoryDictionary.getUserHistoryDictName(
UserHistoryDictionary.NAME, dummyLocale, null /* dictFile */, testAccount);
final File dictFile = ExpandableBinaryDictionary.getDictFile(
getContext(), dictName, null /* dictFile */);
final int numberOfWords = 10000;
final Random random = new Random(123456);
final UserHistoryDictionary dict = PersonalizationHelper.getUserHistoryDictionary(
getContext(), dummyLocale, testAccount);
clearHistory(dict);
assertTrue(UserHistoryDictionaryTestsHelper.addAndWriteRandomWords(dict,
numberOfWords, random, true /* checksContents */, mCurrentTime));
assertDictionaryExists(dict, dictFile);
}
}