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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;
import android.test.AndroidTestCase;
public class ResizableIntArrayTests extends AndroidTestCase {
private static final int DEFAULT_CAPACITY = 48;
public void testNewInstance() {
final ResizableIntArray src = new ResizableIntArray(DEFAULT_CAPACITY);
assertEquals("new instance length", 0, src.getLength());
assertNotNull("new instance array", src.getPrimitiveArray());
}
public void testReset() {
final ResizableIntArray src = new ResizableIntArray(DEFAULT_CAPACITY);
final int[] array = src.getPrimitiveArray();
src.reset(DEFAULT_CAPACITY);
assertEquals("length after reset", 0, src.getLength());
assertNotSame("array after reset", array, src.getPrimitiveArray());
}
public void testAdd() {
final ResizableIntArray src = new ResizableIntArray(DEFAULT_CAPACITY);
final int limit = src.getPrimitiveArray().length * 2 + 10;
for (int i = 0; i < limit; i++) {
src.add(i);
assertEquals("length after add " + i, i + 1, src.getLength());
}
for (int i = 0; i < limit; i++) {
assertEquals("value at " + i, i, src.getPrimitiveArray()[i]);
}
}
public void testAddAt() {
final ResizableIntArray src = new ResizableIntArray(DEFAULT_CAPACITY);
final int limit = 1000, step = 100;
for (int i = 0; i < limit; i += step) {
src.add(i, i);
assertEquals("length after add at " + i, i + 1, src.getLength());
}
for (int i = 0; i < limit; i += step) {
assertEquals("value at " + i, i, src.getPrimitiveArray()[i]);
}
}
public void testSet() {
final ResizableIntArray src = new ResizableIntArray(DEFAULT_CAPACITY);
final int limit = src.getPrimitiveArray().length * 2 + 10;
for (int i = 0; i < limit; i++) {
src.add(i);
}
final ResizableIntArray dst = new ResizableIntArray(DEFAULT_CAPACITY);
dst.set(src);
assertEquals("length after set", dst.getLength(), src.getLength());
assertSame("array after set", dst.getPrimitiveArray(), src.getPrimitiveArray());
}
public void testCopy() {
final ResizableIntArray src = new ResizableIntArray(DEFAULT_CAPACITY);
final int limit = 100;
for (int i = 0; i < limit; i++) {
src.add(i);
}
final ResizableIntArray dst = new ResizableIntArray(DEFAULT_CAPACITY);
dst.copy(src);
assertEquals("length after copy", dst.getLength(), src.getLength());
assertNotSame("array after copy", dst.getPrimitiveArray(), src.getPrimitiveArray());
final int length = dst.getLength();
assertArrayEquals("values after copy",
dst.getPrimitiveArray(), 0, src.getPrimitiveArray(), 0, length);
}
public void testAppend() {
final ResizableIntArray src = new ResizableIntArray(DEFAULT_CAPACITY);
final int srcLen = 100;
for (int i = 0; i < srcLen; i++) {
src.add(i);
}
final int dstLen = 50;
final ResizableIntArray dst = new ResizableIntArray(DEFAULT_CAPACITY);
for (int i = 0; i < dstLen; i++) {
final int value = -i - 1;
dst.add(value);
}
final ResizableIntArray dstCopy = new ResizableIntArray(dst.getLength());
dstCopy.copy(dst);
dst.append(src, 0, 0);
assertEquals("length after append zero", dstLen, dst.getLength());
assertArrayEquals("values after append zero",
dstCopy.getPrimitiveArray(), 0, dst.getPrimitiveArray(), 0, dstLen);
dst.append(src, 0, srcLen);
assertEquals("length after append", dstLen + srcLen, dst.getLength());
assertTrue("primitive length after append",
dst.getPrimitiveArray().length >= dstLen + srcLen);
assertArrayEquals("original values after append",
dstCopy.getPrimitiveArray(), 0, dst.getPrimitiveArray(), 0, dstLen);
assertArrayEquals("appended values after append",
src.getPrimitiveArray(), 0, dst.getPrimitiveArray(), dstLen, srcLen);
}
private static void assertArrayEquals(String message, int[] expecteds, int expectedPos,
int[] actuals, int actualPos, int length) {
if (expecteds == null && actuals == null) {
return;
}
if (expecteds == null || actuals == null) {
fail(message + ": expecteds=" + expecteds + " actuals=" + actuals);
}
for (int i = 0; i < length; i++) {
assertEquals(message + ": element at " + i,
expecteds[i + expectedPos], actuals[i + actualPos]);
}
}
}
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