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Make BinaryDictionaryTests use current time as a seed.

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Bug: 10197478
Change-Id: Ib79cd3a81b01b16259df29b36e1df6b8f0affca8
This commit is contained in:
Keisuke Kuroyanagi 2013-10-04 16:48:22 +09:00
parent 67c855ea6f
commit bcb196e3b5
1 changed files with 60 additions and 54 deletions
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114
tests/src/com/android/inputmethod/latin/BinaryDictionaryTests.java
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@ -18,6 +18,7 @@ package com.android.inputmethod.latin;
import android.test.AndroidTestCase;
import android.test.suitebuilder.annotation.LargeTest;
import android.text.TextUtils;
import android.util.Pair;
import com.android.inputmethod.latin.makedict.CodePointUtils;
@ -126,7 +127,7 @@ public class BinaryDictionaryTests extends AndroidTestCase {
public void testRandomlyAddUnigramWord() {
final int wordCount = 1000;
final int codePointSetSize = 50;
final int seed = 123456789;
final long seed = System.currentTimeMillis();
File dictFile = null;
try {
@ -223,7 +224,8 @@ public class BinaryDictionaryTests extends AndroidTestCase {
final int wordCount = 100;
final int bigramCount = 1000;
final int codePointSetSize = 50;
final int seed = 11111;
final long seed = System.currentTimeMillis();
final Random random = new Random(seed);
File dictFile = null;
try {
@ -234,43 +236,42 @@ public class BinaryDictionaryTests extends AndroidTestCase {
BinaryDictionary binaryDictionary = new BinaryDictionary(dictFile.getAbsolutePath(),
0 /* offset */, dictFile.length(), true /* useFullEditDistance */,
Locale.getDefault(), TEST_LOCALE, true /* isUpdatable */);
final ArrayList<String> words = new ArrayList<String>();
// Test a word that isn't contained within the dictionary.
final Random random = new Random(seed);
final ArrayList<Pair<String, String>> bigramWords = new ArrayList<Pair<String,String>>();
final int[] codePointSet = CodePointUtils.generateCodePointSet(codePointSetSize, random);
final int[] unigramProbabilities = new int[wordCount];
final HashMap<String, Integer> unigramProbabilities = new HashMap<String, Integer>();
final HashMap<Pair<String, String>, Integer> bigramProbabilities =
new HashMap<Pair<String, String>, Integer>();
for (int i = 0; i < wordCount; ++i) {
final String word = CodePointUtils.generateWord(random, codePointSet);
words.add(word);
final int unigramProbability = random.nextInt(0xFF);
unigramProbabilities[i] = unigramProbability;
unigramProbabilities.put(word, unigramProbability);
binaryDictionary.addUnigramWord(word, unigramProbability);
}
final int[][] probabilities = new int[wordCount][wordCount];
for (int i = 0; i < wordCount; ++i) {
for (int j = 0; j < wordCount; ++j) {
probabilities[i][j] = Dictionary.NOT_A_PROBABILITY;
}
}
for (int i = 0; i < bigramCount; i++) {
final int word0Index = random.nextInt(wordCount);
final int word1Index = random.nextInt(wordCount);
final String word0 = words.get(word0Index);
final String word1 = words.get(word1Index);
final String word0 = words.get(random.nextInt(wordCount));
final String word1 = words.get(random.nextInt(wordCount));
if (TextUtils.equals(word0, word1)) {
continue;
}
final Pair<String, String> bigram = new Pair<String, String>(word0, word1);
bigramWords.add(bigram);
final int bigramProbability = random.nextInt(0xF);
probabilities[word0Index][word1Index] = binaryDictionary.calculateProbability(
unigramProbabilities[word1Index], bigramProbability);
bigramProbabilities.put(bigram, bigramProbability);
binaryDictionary.addBigramWords(word0, word1, bigramProbability);
}
for (int i = 0; i < words.size(); i++) {
for (int j = 0; j < words.size(); j++) {
assertEquals(probabilities[i][j],
binaryDictionary.getBigramProbability(words.get(i), words.get(j)));
}
for (final Pair<String, String> bigram : bigramWords) {
final int unigramProbability = unigramProbabilities.get(bigram.second);
final int bigramProbability = bigramProbabilities.get(bigram);
final int probability = binaryDictionary.calculateProbability(unigramProbability,
bigramProbability);
assertEquals(probability,
binaryDictionary.getBigramProbability(bigram.first, bigram.second));
}
dictFile.delete();
@ -419,8 +420,8 @@ public class BinaryDictionaryTests extends AndroidTestCase {
final int wordCount = 100;
final int bigramCount = 1000;
final int codePointSetSize = 30;
// TODO: Use various seeds such as a current timestamp to make this test more random.
final int seed = 314159265;
final long seed = System.currentTimeMillis();
final Random random = new Random(seed);
File dictFile = null;
try {
@ -432,35 +433,32 @@ public class BinaryDictionaryTests extends AndroidTestCase {
BinaryDictionary binaryDictionary = new BinaryDictionary(dictFile.getAbsolutePath(),
0 /* offset */, dictFile.length(), true /* useFullEditDistance */,
Locale.getDefault(), TEST_LOCALE, true /* isUpdatable */);
final ArrayList<String> words = new ArrayList<String>();
// Test a word that isn't contained within the dictionary.
final Random random = new Random(seed);
final ArrayList<Pair<String, String>> bigramWords = new ArrayList<Pair<String,String>>();
final int[] codePointSet = CodePointUtils.generateCodePointSet(codePointSetSize, random);
final int[] unigramProbabilities = new int[wordCount];
final HashMap<String, Integer> unigramProbabilities = new HashMap<String, Integer>();
final HashMap<Pair<String, String>, Integer> bigramProbabilities =
new HashMap<Pair<String, String>, Integer>();
for (int i = 0; i < wordCount; ++i) {
final String word = CodePointUtils.generateWord(random, codePointSet);
words.add(word);
final int unigramProbability = random.nextInt(0xFF);
unigramProbabilities[i] = unigramProbability;
unigramProbabilities.put(word, unigramProbability);
binaryDictionary.addUnigramWord(word, unigramProbability);
}
final int[][] probabilities = new int[wordCount][wordCount];
for (int i = 0; i < wordCount; ++i) {
for (int j = 0; j < wordCount; ++j) {
probabilities[i][j] = Dictionary.NOT_A_PROBABILITY;
}
}
for (int i = 0; i < bigramCount; i++) {
final int word0Index = random.nextInt(wordCount);
final int word1Index = random.nextInt(wordCount);
final String word0 = words.get(word0Index);
final String word1 = words.get(word1Index);
final String word0 = words.get(random.nextInt(wordCount));
final String word1 = words.get(random.nextInt(wordCount));
if (TextUtils.equals(word0, word1)) {
continue;
}
final Pair<String, String> bigram = new Pair<String, String>(word0, word1);
bigramWords.add(bigram);
final int bigramProbability = random.nextInt(0xF);
probabilities[word0Index][word1Index] = binaryDictionary.calculateProbability(
unigramProbabilities[word1Index], bigramProbability);
bigramProbabilities.put(bigram, bigramProbability);
binaryDictionary.addBigramWords(word0, word1, bigramProbability);
}
@ -470,12 +468,15 @@ public class BinaryDictionaryTests extends AndroidTestCase {
0 /* offset */, dictFile.length(), true /* useFullEditDistance */,
Locale.getDefault(), TEST_LOCALE, true /* isUpdatable */);
for (int i = 0; i < words.size(); i++) {
for (int j = 0; j < words.size(); j++) {
assertEquals(probabilities[i][j],
binaryDictionary.getBigramProbability(words.get(i), words.get(j)));
}
for (final Pair<String, String> bigram : bigramWords) {
final int unigramProbability = unigramProbabilities.get(bigram.second);
final int bigramProbability = bigramProbabilities.get(bigram);
final int probability = binaryDictionary.calculateProbability(unigramProbability,
bigramProbability);
assertEquals(probability,
binaryDictionary.getBigramProbability(bigram.first, bigram.second));
}
dictFile.delete();
}
@ -487,8 +488,8 @@ public class BinaryDictionaryTests extends AndroidTestCase {
final float addBigramProb = 0.8f;
final float removeBigramProb = 0.2f;
final int codePointSetSize = 30;
final int seed = 141421356;
final long seed = System.currentTimeMillis();
final Random random = new Random(seed);
File dictFile = null;
@ -539,6 +540,9 @@ public class BinaryDictionaryTests extends AndroidTestCase {
}
final String word0 = words.get(word0Index);
final String word1 = words.get(word1Index);
if (TextUtils.equals(word0, word1)) {
continue;
}
final int bigramProbability = random.nextInt(0xF);
final Pair<String, String> bigram = new Pair<String, String>(word0, word1);
bigramWords.add(bigram);
@ -586,8 +590,8 @@ public class BinaryDictionaryTests extends AndroidTestCase {
public void testAddManyUnigramsAndFlushWithGC() {
final int flashWithGCIterationCount = 3;
final int codePointSetSize = 50;
final int seed = 22360679;
final long seed = System.currentTimeMillis();
final Random random = new Random(seed);
File dictFile = null;
@ -632,8 +636,7 @@ public class BinaryDictionaryTests extends AndroidTestCase {
final int codePointSetSize = 50;
final int unigramCountPerIteration = 1000;
final int bigramCountPerIteration = 2000;
final int seed = 1123581321;
final long seed = System.currentTimeMillis();
final Random random = new Random(seed);
File dictFile = null;
@ -661,6 +664,9 @@ public class BinaryDictionaryTests extends AndroidTestCase {
for (int j = 0; j < bigramCountPerIteration; j++) {
final String word0 = words.get(random.nextInt(words.size()));
final String word1 = words.get(random.nextInt(words.size()));
if (TextUtils.equals(word0, word1)) {
continue;
}
bigrams.add(new Pair<String, String>(word0, word1));
final int bigramProbability = random.nextInt(0xF);
binaryDictionary.addBigramWords(word0, word1, bigramProbability);