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      1 /*
      2  * Copyright (C) 2012 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 
     17 package com.android.inputmethod.latin;
     18 
     19 import android.test.AndroidTestCase;
     20 import android.test.suitebuilder.annotation.SmallTest;
     21 
     22 import com.android.inputmethod.latin.utils.ResizableIntArray;
     23 
     24 import java.util.Arrays;
     25 
     26 @SmallTest
     27 public class InputPointersTests extends AndroidTestCase {
     28     private static final int DEFAULT_CAPACITY = 48;
     29 
     30     public void testNewInstance() {
     31         final InputPointers src = new InputPointers(DEFAULT_CAPACITY);
     32         assertEquals("new instance size", 0, src.getPointerSize());
     33         assertNotNull("new instance xCoordinates", src.getXCoordinates());
     34         assertNotNull("new instance yCoordinates", src.getYCoordinates());
     35         assertNotNull("new instance pointerIds", src.getPointerIds());
     36         assertNotNull("new instance times", src.getTimes());
     37     }
     38 
     39     public void testReset() {
     40         final InputPointers src = new InputPointers(DEFAULT_CAPACITY);
     41         final int[] xCoordinates = src.getXCoordinates();
     42         final int[] yCoordinates = src.getXCoordinates();
     43         final int[] pointerIds = src.getXCoordinates();
     44         final int[] times = src.getXCoordinates();
     45 
     46         src.reset();
     47         assertEquals("size after reset", 0, src.getPointerSize());
     48         assertNotSame("xCoordinates after reset", xCoordinates, src.getXCoordinates());
     49         assertNotSame("yCoordinates after reset", yCoordinates, src.getYCoordinates());
     50         assertNotSame("pointerIds after reset", pointerIds, src.getPointerIds());
     51         assertNotSame("times after reset", times, src.getTimes());
     52     }
     53 
     54     public void testAdd() {
     55         final InputPointers src = new InputPointers(DEFAULT_CAPACITY);
     56         final int limit = src.getXCoordinates().length * 2 + 10;
     57         for (int i = 0; i < limit; i++) {
     58             final int x = i;
     59             final int y = i * 2;
     60             final int pointerId = i * 3;
     61             final int time = i * 4;
     62             src.addPointer(x, y, pointerId, time);
     63             assertEquals("size after add " + i, i + 1, src.getPointerSize());
     64         }
     65         for (int i = 0; i < limit; i++) {
     66             final int x = i;
     67             final int y = i * 2;
     68             final int pointerId = i * 3;
     69             final int time = i * 4;
     70             assertEquals("xCoordinates at " + i, x, src.getXCoordinates()[i]);
     71             assertEquals("yCoordinates at " + i, y, src.getYCoordinates()[i]);
     72             assertEquals("pointerIds at " + i, pointerId, src.getPointerIds()[i]);
     73             assertEquals("times at " + i, time, src.getTimes()[i]);
     74         }
     75     }
     76 
     77     public void testAddAt() {
     78         final InputPointers src = new InputPointers(DEFAULT_CAPACITY);
     79         final int limit = 1000, step = 100;
     80         for (int i = 0; i < limit; i += step) {
     81             final int x = i;
     82             final int y = i * 2;
     83             final int pointerId = i * 3;
     84             final int time = i * 4;
     85             src.addPointerAt(i, x, y, pointerId, time);
     86             assertEquals("size after add at " + i, i + 1, src.getPointerSize());
     87         }
     88         for (int i = 0; i < limit; i += step) {
     89             final int x = i;
     90             final int y = i * 2;
     91             final int pointerId = i * 3;
     92             final int time = i * 4;
     93             assertEquals("xCoordinates at " + i, x, src.getXCoordinates()[i]);
     94             assertEquals("yCoordinates at " + i, y, src.getYCoordinates()[i]);
     95             assertEquals("pointerIds at " + i, pointerId, src.getPointerIds()[i]);
     96             assertEquals("times at " + i, time, src.getTimes()[i]);
     97         }
     98     }
     99 
    100     public void testSet() {
    101         final InputPointers src = new InputPointers(DEFAULT_CAPACITY);
    102         final int limit = src.getXCoordinates().length * 2 + 10;
    103         for (int i = 0; i < limit; i++) {
    104             final int x = i;
    105             final int y = i * 2;
    106             final int pointerId = i * 3;
    107             final int time = i * 4;
    108             src.addPointer(x, y, pointerId, time);
    109         }
    110         final InputPointers dst = new InputPointers(DEFAULT_CAPACITY);
    111         dst.set(src);
    112         assertEquals("size after set", dst.getPointerSize(), src.getPointerSize());
    113         assertSame("xCoordinates after set", dst.getXCoordinates(), src.getXCoordinates());
    114         assertSame("yCoordinates after set", dst.getYCoordinates(), src.getYCoordinates());
    115         assertSame("pointerIds after set", dst.getPointerIds(), src.getPointerIds());
    116         assertSame("times after set", dst.getTimes(), src.getTimes());
    117     }
    118 
    119     public void testCopy() {
    120         final InputPointers src = new InputPointers(DEFAULT_CAPACITY);
    121         final int limit = 100;
    122         for (int i = 0; i < limit; i++) {
    123             final int x = i;
    124             final int y = i * 2;
    125             final int pointerId = i * 3;
    126             final int time = i * 4;
    127             src.addPointer(x, y, pointerId, time);
    128         }
    129         final InputPointers dst = new InputPointers(DEFAULT_CAPACITY);
    130         dst.copy(src);
    131         assertEquals("size after copy", dst.getPointerSize(), src.getPointerSize());
    132         assertNotSame("xCoordinates after copy", dst.getXCoordinates(), src.getXCoordinates());
    133         assertNotSame("yCoordinates after copy", dst.getYCoordinates(), src.getYCoordinates());
    134         assertNotSame("pointerIds after copy", dst.getPointerIds(), src.getPointerIds());
    135         assertNotSame("times after copy", dst.getTimes(), src.getTimes());
    136         final int size = dst.getPointerSize();
    137         assertIntArrayEquals("xCoordinates values after copy",
    138                 dst.getXCoordinates(), 0, src.getXCoordinates(), 0, size);
    139         assertIntArrayEquals("yCoordinates values after copy",
    140                 dst.getYCoordinates(), 0, src.getYCoordinates(), 0, size);
    141         assertIntArrayEquals("pointerIds values after copy",
    142                 dst.getPointerIds(), 0, src.getPointerIds(), 0, size);
    143         assertIntArrayEquals("times values after copy",
    144                 dst.getTimes(), 0, src.getTimes(), 0, size);
    145     }
    146 
    147     public void testAppend() {
    148         final int dstLength = 50;
    149         final InputPointers dst = new InputPointers(DEFAULT_CAPACITY);
    150         for (int i = 0; i < dstLength; i++) {
    151             final int x = i * 4;
    152             final int y = i * 3;
    153             final int pointerId = i * 2;
    154             final int time = i;
    155             dst.addPointer(x, y, pointerId, time);
    156         }
    157         final InputPointers dstCopy = new InputPointers(DEFAULT_CAPACITY);
    158         dstCopy.copy(dst);
    159 
    160         final ResizableIntArray srcXCoords = new ResizableIntArray(DEFAULT_CAPACITY);
    161         final ResizableIntArray srcYCoords = new ResizableIntArray(DEFAULT_CAPACITY);
    162         final ResizableIntArray srcPointerIds = new ResizableIntArray(DEFAULT_CAPACITY);
    163         final ResizableIntArray srcTimes = new ResizableIntArray(DEFAULT_CAPACITY);
    164         final int srcLength = 100;
    165         final int srcPointerId = 10;
    166         for (int i = 0; i < srcLength; i++) {
    167             final int x = i;
    168             final int y = i * 2;
    169             // The time value must be larger than <code>dst</code>.
    170             final int time = i * 4 + dstLength;
    171             srcXCoords.add(x);
    172             srcYCoords.add(y);
    173             srcPointerIds.add(srcPointerId);
    174             srcTimes.add(time);
    175         }
    176 
    177         final int startPos = 0;
    178         dst.append(srcPointerId, srcTimes, srcXCoords, srcYCoords,
    179                 startPos, 0 /* length */);
    180         assertEquals("size after append zero", dstLength, dst.getPointerSize());
    181         assertIntArrayEquals("xCoordinates after append zero",
    182                 dstCopy.getXCoordinates(), startPos, dst.getXCoordinates(), startPos, dstLength);
    183         assertIntArrayEquals("yCoordinates after append zero",
    184                 dstCopy.getYCoordinates(), startPos, dst.getYCoordinates(), startPos, dstLength);
    185         assertIntArrayEquals("pointerIds after append zero",
    186                 dstCopy.getPointerIds(), startPos, dst.getPointerIds(), startPos, dstLength);
    187         assertIntArrayEquals("times after append zero",
    188                 dstCopy.getTimes(), startPos, dst.getTimes(), startPos, dstLength);
    189 
    190         dst.append(srcPointerId, srcTimes, srcXCoords, srcYCoords,
    191                 startPos, srcLength);
    192         assertEquals("size after append", dstLength + srcLength, dst.getPointerSize());
    193         assertTrue("primitive length after append",
    194                 dst.getPointerIds().length >= dstLength + srcLength);
    195         assertIntArrayEquals("original xCoordinates values after append",
    196                 dstCopy.getXCoordinates(), startPos, dst.getXCoordinates(), startPos, dstLength);
    197         assertIntArrayEquals("original yCoordinates values after append",
    198                 dstCopy.getYCoordinates(), startPos, dst.getYCoordinates(), startPos, dstLength);
    199         assertIntArrayEquals("original pointerIds values after append",
    200                 dstCopy.getPointerIds(), startPos, dst.getPointerIds(), startPos, dstLength);
    201         assertIntArrayEquals("original times values after append",
    202                 dstCopy.getTimes(), startPos, dst.getTimes(), startPos, dstLength);
    203         assertIntArrayEquals("appended xCoordinates values after append",
    204                 srcXCoords.getPrimitiveArray(), startPos, dst.getXCoordinates(),
    205                 dstLength, srcLength);
    206         assertIntArrayEquals("appended yCoordinates values after append",
    207                 srcYCoords.getPrimitiveArray(), startPos, dst.getYCoordinates(),
    208                 dstLength, srcLength);
    209         assertIntArrayEquals("appended pointerIds values after append",
    210                 srcPointerIds.getPrimitiveArray(), startPos, dst.getPointerIds(),
    211                 dstLength, srcLength);
    212         assertIntArrayEquals("appended times values after append",
    213                 srcTimes.getPrimitiveArray(), startPos, dst.getTimes(), dstLength, srcLength);
    214     }
    215 
    216     public void testAppendResizableIntArray() {
    217         final int dstLength = 50;
    218         final InputPointers dst = new InputPointers(DEFAULT_CAPACITY);
    219         for (int i = 0; i < dstLength; i++) {
    220             final int x = i * 4;
    221             final int y = i * 3;
    222             final int pointerId = i * 2;
    223             final int time = i;
    224             dst.addPointer(x, y, pointerId, time);
    225         }
    226         final InputPointers dstCopy = new InputPointers(DEFAULT_CAPACITY);
    227         dstCopy.copy(dst);
    228 
    229         final int srcLength = 100;
    230         final int srcPointerId = 1;
    231         final int[] srcPointerIds = new int[srcLength];
    232         Arrays.fill(srcPointerIds, srcPointerId);
    233         final ResizableIntArray srcTimes = new ResizableIntArray(DEFAULT_CAPACITY);
    234         final ResizableIntArray srcXCoords = new ResizableIntArray(DEFAULT_CAPACITY);
    235         final ResizableIntArray srcYCoords= new ResizableIntArray(DEFAULT_CAPACITY);
    236         for (int i = 0; i < srcLength; i++) {
    237             // The time value must be larger than <code>dst</code>.
    238             final int time = i * 2 + dstLength;
    239             final int x = i * 3;
    240             final int y = i * 4;
    241             srcTimes.add(time);
    242             srcXCoords.add(x);
    243             srcYCoords.add(y);
    244         }
    245 
    246         dst.append(srcPointerId, srcTimes, srcXCoords, srcYCoords, 0, 0);
    247         assertEquals("size after append zero", dstLength, dst.getPointerSize());
    248         assertIntArrayEquals("xCoordinates after append zero",
    249                 dstCopy.getXCoordinates(), 0, dst.getXCoordinates(), 0, dstLength);
    250         assertIntArrayEquals("yCoordinates after append zero",
    251                 dstCopy.getYCoordinates(), 0, dst.getYCoordinates(), 0, dstLength);
    252         assertIntArrayEquals("pointerIds after append zero",
    253                 dstCopy.getPointerIds(), 0, dst.getPointerIds(), 0, dstLength);
    254         assertIntArrayEquals("times after append zero",
    255                 dstCopy.getTimes(), 0, dst.getTimes(), 0, dstLength);
    256 
    257         dst.append(srcPointerId, srcTimes, srcXCoords, srcYCoords, 0, srcLength);
    258         assertEquals("size after append", dstLength + srcLength, dst.getPointerSize());
    259         assertTrue("primitive length after append",
    260                 dst.getPointerIds().length >= dstLength + srcLength);
    261         assertIntArrayEquals("original xCoordinates values after append",
    262                 dstCopy.getXCoordinates(), 0, dst.getXCoordinates(), 0, dstLength);
    263         assertIntArrayEquals("original yCoordinates values after append",
    264                 dstCopy.getYCoordinates(), 0, dst.getYCoordinates(), 0, dstLength);
    265         assertIntArrayEquals("original pointerIds values after append",
    266                 dstCopy.getPointerIds(), 0, dst.getPointerIds(), 0, dstLength);
    267         assertIntArrayEquals("original times values after append",
    268                 dstCopy.getTimes(), 0, dst.getTimes(), 0, dstLength);
    269         assertIntArrayEquals("appended xCoordinates values after append",
    270                 srcXCoords.getPrimitiveArray(), 0, dst.getXCoordinates(), dstLength, srcLength);
    271         assertIntArrayEquals("appended yCoordinates values after append",
    272                 srcYCoords.getPrimitiveArray(), 0, dst.getYCoordinates(), dstLength, srcLength);
    273         assertIntArrayEquals("appended pointerIds values after append",
    274                 srcPointerIds, 0, dst.getPointerIds(), dstLength, srcLength);
    275         assertIntArrayEquals("appended times values after append",
    276                 srcTimes.getPrimitiveArray(), 0, dst.getTimes(), dstLength, srcLength);
    277     }
    278 
    279     // TODO: Consolidate this method with
    280     // {@link ResizableIntArrayTests#assertIntArrayEquals(String,int[],int,int[],int,int)}.
    281     private static void assertIntArrayEquals(final String message, final int[] expecteds,
    282             final int expectedPos, final int[] actuals, final int actualPos, final int length) {
    283         if (expecteds == actuals) {
    284             return;
    285         }
    286         if (expecteds == null || actuals == null) {
    287             assertEquals(message, Arrays.toString(expecteds), Arrays.toString(actuals));
    288             return;
    289         }
    290         if (expecteds.length < expectedPos + length || actuals.length < actualPos + length) {
    291             fail(message + ": insufficient length: expecteds=" + Arrays.toString(expecteds)
    292                     + " actuals=" + Arrays.toString(actuals));
    293             return;
    294         }
    295         for (int i = 0; i < length; i++) {
    296             assertEquals(message + " [" + i + "]",
    297                     expecteds[i + expectedPos], actuals[i + actualPos]);
    298         }
    299     }
    300 
    301     public void testShift() {
    302         final InputPointers src = new InputPointers(DEFAULT_CAPACITY);
    303         final int limit = 100;
    304         final int shiftAmount = 20;
    305         for (int i = 0; i < limit; i++) {
    306             final int x = i;
    307             final int y = i * 2;
    308             final int pointerId = i * 3;
    309             final int time = i * 4;
    310             src.addPointer(x, y, pointerId, time);
    311         }
    312         src.shift(shiftAmount);
    313         assertEquals("length after shift", src.getPointerSize(), limit - shiftAmount);
    314         for (int i = 0; i < limit - shiftAmount; ++i) {
    315             final int oldIndex = i + shiftAmount;
    316             final int x = oldIndex;
    317             final int y = oldIndex * 2;
    318             final int pointerId = oldIndex * 3;
    319             final int time = oldIndex * 4;
    320             assertEquals("xCoordinates at " + i, x, src.getXCoordinates()[i]);
    321             assertEquals("yCoordinates at " + i, y, src.getYCoordinates()[i]);
    322             assertEquals("pointerIds at " + i, pointerId, src.getPointerIds()[i]);
    323             assertEquals("times at " + i, time, src.getTimes()[i]);
    324         }
    325     }
    326 }
    327