1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.inputmethod.latin.personalization;
18
19import java.io.File;
20import java.util.ArrayList;
21import java.util.HashMap;
22import java.util.Locale;
23import java.util.Map;
24
25import com.android.inputmethod.latin.Dictionary;
26import com.android.inputmethod.latin.DictionaryFacilitator;
27import com.android.inputmethod.latin.ExpandableBinaryDictionary;
28
29import android.test.AndroidTestCase;
30import android.test.suitebuilder.annotation.LargeTest;
31
32/**
33 * Unit tests for contextual dictionary
34 */
35@LargeTest
36public class ContextualDictionaryTests extends AndroidTestCase {
37    private static final String TAG = ContextualDictionaryTests.class.getSimpleName();
38
39    private static final Locale LOCALE_EN_US = new Locale("en", "US");
40
41    private DictionaryFacilitator getDictionaryFacilitator() {
42        final ArrayList<String> dictTypes = new ArrayList<>();
43        dictTypes.add(Dictionary.TYPE_CONTEXTUAL);
44        final DictionaryFacilitator dictionaryFacilitator = new DictionaryFacilitator();
45        dictionaryFacilitator.resetDictionariesForTesting(getContext(), LOCALE_EN_US, dictTypes,
46                new HashMap<String, File>(), new HashMap<String, Map<String, String>>());
47        return dictionaryFacilitator;
48    }
49
50    public void testAddPhrase() {
51        final DictionaryFacilitator dictionaryFacilitator = getDictionaryFacilitator();
52        final String[] phrase = new String[] {"a", "b", "c", "d"};
53        final int probability = 100;
54        final int bigramProbabilityForWords = 150;
55        final int bigramProbabilityForPhrases = 200;
56        dictionaryFacilitator.addPhraseToContextualDictionary(
57                phrase, probability, bigramProbabilityForWords, bigramProbabilityForPhrases);
58        final ExpandableBinaryDictionary contextualDictionary =
59                dictionaryFacilitator.getSubDictForTesting(Dictionary.TYPE_CONTEXTUAL);
60        contextualDictionary.waitAllTasksForTests();
61        // Word
62        assertTrue(contextualDictionary.isInDictionary("a"));
63        assertTrue(contextualDictionary.isInDictionary("b"));
64        assertTrue(contextualDictionary.isInDictionary("c"));
65        assertTrue(contextualDictionary.isInDictionary("d"));
66        // Phrase
67        assertTrue(contextualDictionary.isInDictionary("a b c d"));
68        assertTrue(contextualDictionary.isInDictionary("b c d"));
69        assertTrue(contextualDictionary.isInDictionary("c d"));
70        assertFalse(contextualDictionary.isInDictionary("a b c"));
71        assertFalse(contextualDictionary.isInDictionary("abcd"));
72        // TODO: Add tests for probability.
73        // TODO: Add tests for n-grams.
74    }
75}
76