LatinIME/tests/src/com/android/inputmethod/latin/makedict/BinaryDictReaderTests.java

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/*
* Copyright (C) 2013 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.makedict;
import com.android.inputmethod.latin.makedict.BinaryDictInputOutput.FusionDictionaryBufferInterface;
import com.android.inputmethod.latin.makedict.BinaryDictReader.FusionDictionaryBufferFactory;
import com.android.inputmethod.latin.makedict.BinaryDictReader.
FusionDictionaryBufferFromByteArrayFactory;
import com.android.inputmethod.latin.makedict.BinaryDictReader.
FusionDictionaryBufferFromByteBufferFactory;
import com.android.inputmethod.latin.makedict.BinaryDictReader.
FusionDictionaryBufferFromWritableByteBufferFactory;
import android.test.AndroidTestCase;
import android.util.Log;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
/**
* Unit tests for BinaryDictReader
*/
public class BinaryDictReaderTests extends AndroidTestCase {
private static final String TAG = BinaryDictReaderTests.class.getSimpleName();
private final byte[] data = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
// Utilities for testing
public void writeDataToFile(final File file) {
FileOutputStream outStream = null;
try {
outStream = new FileOutputStream(file);
outStream.write(data);
} catch (IOException e) {
fail ("Can't write data to the test file");
} finally {
if (outStream != null) {
try {
outStream.close();
} catch (IOException e) {
Log.e(TAG, "Failed to close the output stream", e);
}
}
}
}
@SuppressWarnings("null")
public void runTestOpenBuffer(final String testName,
final FusionDictionaryBufferFactory factory) {
File testFile = null;
try {
testFile = File.createTempFile(testName, ".tmp", getContext().getCacheDir());
} catch (IOException e) {
Log.e(TAG, "IOException while the creating temporary file", e);
}
assertNotNull(testFile);
final BinaryDictReader reader = new BinaryDictReader(testFile);
try {
reader.openBuffer(factory);
} catch (Exception e) {
Log.e(TAG, "Failed to open the buffer", e);
}
writeDataToFile(testFile);
try {
reader.openBuffer(factory);
} catch (Exception e) {
Log.e(TAG, "Raised the exception while opening buffer", e);
}
assertEquals(testFile.length(), reader.getBuffer().capacity());
}
public void testOpenBufferWithByteBuffer() {
runTestOpenBuffer("testOpenBufferWithByteBuffer",
new FusionDictionaryBufferFromByteBufferFactory());
}
public void testOpenBufferWithByteArray() {
runTestOpenBuffer("testOpenBufferWithByteArray",
new FusionDictionaryBufferFromByteArrayFactory());
}
public void testOpenBufferWithWritableByteBuffer() {
runTestOpenBuffer("testOpenBufferWithWritableByteBuffer",
new FusionDictionaryBufferFromWritableByteBufferFactory());
}
@SuppressWarnings("null")
public void runTestGetBuffer(final String testName,
final FusionDictionaryBufferFactory factory) {
File testFile = null;
try {
testFile = File.createTempFile(testName, ".tmp", getContext().getCacheDir());
} catch (IOException e) {
Log.e(TAG, "IOException while the creating temporary file", e);
}
final BinaryDictReader reader = new BinaryDictReader(testFile);
// the default return value of getBuffer() must be null.
assertNull("the default return value of getBuffer() is not null", reader.getBuffer());
writeDataToFile(testFile);
assertTrue(testFile.exists());
Log.d(TAG, "file length = " + testFile.length());
FusionDictionaryBufferInterface buffer = null;
try {
buffer = reader.openAndGetBuffer(factory);
} catch (IOException e) {
Log.e(TAG, "Failed to open and get the buffer", e);
}
assertNotNull("the buffer must not be null", buffer);
for (int i = 0; i < data.length; ++i) {
assertEquals(data[i], buffer.readUnsignedByte());
}
}
public void testGetBufferWithByteBuffer() {
runTestGetBuffer("testGetBufferWithByteBuffer",
new FusionDictionaryBufferFromByteBufferFactory());
}
public void testGetBufferWithByteArray() {
runTestGetBuffer("testGetBufferWithByteArray",
new FusionDictionaryBufferFromByteArrayFactory());
}
public void testGetBufferWithWritableByteBuffer() {
runTestGetBuffer("testGetBufferWithWritableByteBuffer",
new FusionDictionaryBufferFromWritableByteBufferFactory());
}
}