126 lines
4.5 KiB
Java
126 lines
4.5 KiB
Java
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy of
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* 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations under
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* 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.util.Log;
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import com.android.inputmethod.latin.tests.R;
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import java.io.InputStreamReader;
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import java.io.InputStream;
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import java.io.BufferedReader;
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import java.util.StringTokenizer;
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public class SuggestPerformanceTests extends AndroidTestCase {
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private static final String TAG = "SuggestPerformanceTests";
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private String mTestText;
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private SuggestHelper sh;
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@Override
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protected void setUp() {
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// TODO Figure out a way to directly using the dictionary rather than copying it over
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// For testing with real dictionary, TEMPORARILY COPY main dictionary into test directory.
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// DO NOT SUBMIT real dictionary under test directory.
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//int[] resId = new int[] { R.raw.main0, R.raw.main1, R.raw.main2 };
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int[] resId = new int[] { R.raw.test };
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sh = new SuggestHelper(TAG, getTestContext(), resId);
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loadString();
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}
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private void loadString() {
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try {
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InputStream is = getTestContext().getResources().openRawResource(R.raw.testtext);
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BufferedReader reader = new BufferedReader(new InputStreamReader(is));
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StringBuilder sb = new StringBuilder();
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String line = reader.readLine();
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while (line != null) {
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sb.append(line + " ");
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line = reader.readLine();
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}
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mTestText = sb.toString();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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/************************** Helper functions ************************/
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private int lookForSuggestion(String prevWord, String currentWord) {
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for (int i = 1; i < currentWord.length(); i++) {
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if (i == 1) {
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if (sh.isDefaultNextSuggestion(prevWord, currentWord.substring(0, i),
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currentWord)) {
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return i;
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}
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} else {
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if (sh.isDefaultNextCorrection(prevWord, currentWord.substring(0, i),
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currentWord)) {
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return i;
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}
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}
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}
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return currentWord.length();
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}
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private double runText(boolean withBigrams) {
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StringTokenizer st = new StringTokenizer(mTestText);
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String prevWord = null;
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int typeCount = 0;
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int characterCount = 0; // without space
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int wordCount = 0;
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while (st.hasMoreTokens()) {
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String currentWord = st.nextToken();
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boolean endCheck = false;
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if (currentWord.matches("[\\w]*[\\.|?|!|*|@|&|/|:|;]")) {
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currentWord = currentWord.substring(0, currentWord.length() - 1);
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endCheck = true;
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}
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if (withBigrams && prevWord != null) {
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typeCount += lookForSuggestion(prevWord, currentWord);
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} else {
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typeCount += lookForSuggestion(null, currentWord);
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}
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characterCount += currentWord.length();
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if (!endCheck) prevWord = currentWord;
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wordCount++;
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}
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double result = (double) (characterCount - typeCount) / characterCount * 100;
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if (withBigrams) {
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Log.i(TAG, "with bigrams -> " + result + " % saved!");
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} else {
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Log.i(TAG, "without bigrams -> " + result + " % saved!");
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}
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Log.i(TAG, "\ttotal number of words: " + wordCount);
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Log.i(TAG, "\ttotal number of characters: " + mTestText.length());
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Log.i(TAG, "\ttotal number of characters without space: " + characterCount);
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Log.i(TAG, "\ttotal number of characters typed: " + typeCount);
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return result;
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}
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/************************** Performance Tests ************************/
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/**
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* Compare the Suggest with and without bigram
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* Check the log for detail
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*/
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public void testSuggestPerformance() {
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assertTrue(runText(false) <= runText(true));
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}
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}
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