Move InputPointers and ResizableIntArray to common

Bug: 18108776
Change-Id: Ie5c0430aa41a8d6c58bf510a10173223d7dfe9fe

1 files changed, 324 insertions, 0 deletions

diff --git a/tests/src/com/android/inputmethod/latin/common/InputPointersTests.java b/tests/src/com/android/inputmethod/latin/common/InputPointersTests.java
new file mode 100644
index 000000000..6b3490de8
--- /dev/null
+++ b/tests/src/com/android/inputmethod/latin/common/InputPointersTests.java
@@ -0,0 +1,324 @@
+/*
+ * 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.common;
+
+import android.test.AndroidTestCase;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import java.util.Arrays;
+
+@SmallTest
+public class InputPointersTests extends AndroidTestCase {
+    private static final int DEFAULT_CAPACITY = 48;
+
+    public void testNewInstance() {
+        final InputPointers src = new InputPointers(DEFAULT_CAPACITY);
+        assertEquals("new instance size", 0, src.getPointerSize());
+        assertNotNull("new instance xCoordinates", src.getXCoordinates());
+        assertNotNull("new instance yCoordinates", src.getYCoordinates());
+        assertNotNull("new instance pointerIds", src.getPointerIds());
+        assertNotNull("new instance times", src.getTimes());
+    }
+
+    public void testReset() {
+        final InputPointers src = new InputPointers(DEFAULT_CAPACITY);
+        final int[] xCoordinates = src.getXCoordinates();
+        final int[] yCoordinates = src.getXCoordinates();
+        final int[] pointerIds = src.getXCoordinates();
+        final int[] times = src.getXCoordinates();
+
+        src.reset();
+        assertEquals("size after reset", 0, src.getPointerSize());
+        assertNotSame("xCoordinates after reset", xCoordinates, src.getXCoordinates());
+        assertNotSame("yCoordinates after reset", yCoordinates, src.getYCoordinates());
+        assertNotSame("pointerIds after reset", pointerIds, src.getPointerIds());
+        assertNotSame("times after reset", times, src.getTimes());
+    }
+
+    public void testAdd() {
+        final InputPointers src = new InputPointers(DEFAULT_CAPACITY);
+        final int limit = src.getXCoordinates().length * 2 + 10;
+        for (int i = 0; i < limit; i++) {
+            final int x = i;
+            final int y = i * 2;
+            final int pointerId = i * 3;
+            final int time = i * 4;
+            src.addPointer(x, y, pointerId, time);
+            assertEquals("size after add " + i, i + 1, src.getPointerSize());
+        }
+        for (int i = 0; i < limit; i++) {
+            final int x = i;
+            final int y = i * 2;
+            final int pointerId = i * 3;
+            final int time = i * 4;
+            assertEquals("xCoordinates at " + i, x, src.getXCoordinates()[i]);
+            assertEquals("yCoordinates at " + i, y, src.getYCoordinates()[i]);
+            assertEquals("pointerIds at " + i, pointerId, src.getPointerIds()[i]);
+            assertEquals("times at " + i, time, src.getTimes()[i]);
+        }
+    }
+
+    public void testAddAt() {
+        final InputPointers src = new InputPointers(DEFAULT_CAPACITY);
+        final int limit = 1000, step = 100;
+        for (int i = 0; i < limit; i += step) {
+            final int x = i;
+            final int y = i * 2;
+            final int pointerId = i * 3;
+            final int time = i * 4;
+            src.addPointerAt(i, x, y, pointerId, time);
+            assertEquals("size after add at " + i, i + 1, src.getPointerSize());
+        }
+        for (int i = 0; i < limit; i += step) {
+            final int x = i;
+            final int y = i * 2;
+            final int pointerId = i * 3;
+            final int time = i * 4;
+            assertEquals("xCoordinates at " + i, x, src.getXCoordinates()[i]);
+            assertEquals("yCoordinates at " + i, y, src.getYCoordinates()[i]);
+            assertEquals("pointerIds at " + i, pointerId, src.getPointerIds()[i]);
+            assertEquals("times at " + i, time, src.getTimes()[i]);
+        }
+    }
+
+    public void testSet() {
+        final InputPointers src = new InputPointers(DEFAULT_CAPACITY);
+        final int limit = src.getXCoordinates().length * 2 + 10;
+        for (int i = 0; i < limit; i++) {
+            final int x = i;
+            final int y = i * 2;
+            final int pointerId = i * 3;
+            final int time = i * 4;
+            src.addPointer(x, y, pointerId, time);
+        }
+        final InputPointers dst = new InputPointers(DEFAULT_CAPACITY);
+        dst.set(src);
+        assertEquals("size after set", dst.getPointerSize(), src.getPointerSize());
+        assertSame("xCoordinates after set", dst.getXCoordinates(), src.getXCoordinates());
+        assertSame("yCoordinates after set", dst.getYCoordinates(), src.getYCoordinates());
+        assertSame("pointerIds after set", dst.getPointerIds(), src.getPointerIds());
+        assertSame("times after set", dst.getTimes(), src.getTimes());
+    }
+
+    public void testCopy() {
+        final InputPointers src = new InputPointers(DEFAULT_CAPACITY);
+        final int limit = 100;
+        for (int i = 0; i < limit; i++) {
+            final int x = i;
+            final int y = i * 2;
+            final int pointerId = i * 3;
+            final int time = i * 4;
+            src.addPointer(x, y, pointerId, time);
+        }
+        final InputPointers dst = new InputPointers(DEFAULT_CAPACITY);
+        dst.copy(src);
+        assertEquals("size after copy", dst.getPointerSize(), src.getPointerSize());
+        assertNotSame("xCoordinates after copy", dst.getXCoordinates(), src.getXCoordinates());
+        assertNotSame("yCoordinates after copy", dst.getYCoordinates(), src.getYCoordinates());
+        assertNotSame("pointerIds after copy", dst.getPointerIds(), src.getPointerIds());
+        assertNotSame("times after copy", dst.getTimes(), src.getTimes());
+        final int size = dst.getPointerSize();
+        assertIntArrayEquals("xCoordinates values after copy",
+                dst.getXCoordinates(), 0, src.getXCoordinates(), 0, size);
+        assertIntArrayEquals("yCoordinates values after copy",
+                dst.getYCoordinates(), 0, src.getYCoordinates(), 0, size);
+        assertIntArrayEquals("pointerIds values after copy",
+                dst.getPointerIds(), 0, src.getPointerIds(), 0, size);
+        assertIntArrayEquals("times values after copy",
+                dst.getTimes(), 0, src.getTimes(), 0, size);
+    }
+
+    public void testAppend() {
+        final int dstLength = 50;
+        final InputPointers dst = new InputPointers(DEFAULT_CAPACITY);
+        for (int i = 0; i < dstLength; i++) {
+            final int x = i * 4;
+            final int y = i * 3;
+            final int pointerId = i * 2;
+            final int time = i;
+            dst.addPointer(x, y, pointerId, time);
+        }
+        final InputPointers dstCopy = new InputPointers(DEFAULT_CAPACITY);
+        dstCopy.copy(dst);
+
+        final ResizableIntArray srcXCoords = new ResizableIntArray(DEFAULT_CAPACITY);
+        final ResizableIntArray srcYCoords = new ResizableIntArray(DEFAULT_CAPACITY);
+        final ResizableIntArray srcPointerIds = new ResizableIntArray(DEFAULT_CAPACITY);
+        final ResizableIntArray srcTimes = new ResizableIntArray(DEFAULT_CAPACITY);
+        final int srcLength = 100;
+        final int srcPointerId = 10;
+        for (int i = 0; i < srcLength; i++) {
+            final int x = i;
+            final int y = i * 2;
+            // The time value must be larger than <code>dst</code>.
+            final int time = i * 4 + dstLength;
+            srcXCoords.add(x);
+            srcYCoords.add(y);
+            srcPointerIds.add(srcPointerId);
+            srcTimes.add(time);
+        }
+
+        final int startPos = 0;
+        dst.append(srcPointerId, srcTimes, srcXCoords, srcYCoords,
+                startPos, 0 /* length */);
+        assertEquals("size after append zero", dstLength, dst.getPointerSize());
+        assertIntArrayEquals("xCoordinates after append zero",
+                dstCopy.getXCoordinates(), startPos, dst.getXCoordinates(), startPos, dstLength);
+        assertIntArrayEquals("yCoordinates after append zero",
+                dstCopy.getYCoordinates(), startPos, dst.getYCoordinates(), startPos, dstLength);
+        assertIntArrayEquals("pointerIds after append zero",
+                dstCopy.getPointerIds(), startPos, dst.getPointerIds(), startPos, dstLength);
+        assertIntArrayEquals("times after append zero",
+                dstCopy.getTimes(), startPos, dst.getTimes(), startPos, dstLength);
+
+        dst.append(srcPointerId, srcTimes, srcXCoords, srcYCoords,
+                startPos, srcLength);
+        assertEquals("size after append", dstLength + srcLength, dst.getPointerSize());
+        assertTrue("primitive length after append",
+                dst.getPointerIds().length >= dstLength + srcLength);
+        assertIntArrayEquals("original xCoordinates values after append",
+                dstCopy.getXCoordinates(), startPos, dst.getXCoordinates(), startPos, dstLength);
+        assertIntArrayEquals("original yCoordinates values after append",
+                dstCopy.getYCoordinates(), startPos, dst.getYCoordinates(), startPos, dstLength);
+        assertIntArrayEquals("original pointerIds values after append",
+                dstCopy.getPointerIds(), startPos, dst.getPointerIds(), startPos, dstLength);
+        assertIntArrayEquals("original times values after append",
+                dstCopy.getTimes(), startPos, dst.getTimes(), startPos, dstLength);
+        assertIntArrayEquals("appended xCoordinates values after append",
+                srcXCoords.getPrimitiveArray(), startPos, dst.getXCoordinates(),
+                dstLength, srcLength);
+        assertIntArrayEquals("appended yCoordinates values after append",
+                srcYCoords.getPrimitiveArray(), startPos, dst.getYCoordinates(),
+                dstLength, srcLength);
+        assertIntArrayEquals("appended pointerIds values after append",
+                srcPointerIds.getPrimitiveArray(), startPos, dst.getPointerIds(),
+                dstLength, srcLength);
+        assertIntArrayEquals("appended times values after append",
+                srcTimes.getPrimitiveArray(), startPos, dst.getTimes(), dstLength, srcLength);
+    }
+
+    public void testAppendResizableIntArray() {
+        final int dstLength = 50;
+        final InputPointers dst = new InputPointers(DEFAULT_CAPACITY);
+        for (int i = 0; i < dstLength; i++) {
+            final int x = i * 4;
+            final int y = i * 3;
+            final int pointerId = i * 2;
+            final int time = i;
+            dst.addPointer(x, y, pointerId, time);
+        }
+        final InputPointers dstCopy = new InputPointers(DEFAULT_CAPACITY);
+        dstCopy.copy(dst);
+
+        final int srcLength = 100;
+        final int srcPointerId = 1;
+        final int[] srcPointerIds = new int[srcLength];
+        Arrays.fill(srcPointerIds, srcPointerId);
+        final ResizableIntArray srcTimes = new ResizableIntArray(DEFAULT_CAPACITY);
+        final ResizableIntArray srcXCoords = new ResizableIntArray(DEFAULT_CAPACITY);
+        final ResizableIntArray srcYCoords= new ResizableIntArray(DEFAULT_CAPACITY);
+        for (int i = 0; i < srcLength; i++) {
+            // The time value must be larger than <code>dst</code>.
+            final int time = i * 2 + dstLength;
+            final int x = i * 3;
+            final int y = i * 4;
+            srcTimes.add(time);
+            srcXCoords.add(x);
+            srcYCoords.add(y);
+        }
+
+        dst.append(srcPointerId, srcTimes, srcXCoords, srcYCoords, 0, 0);
+        assertEquals("size after append zero", dstLength, dst.getPointerSize());
+        assertIntArrayEquals("xCoordinates after append zero",
+                dstCopy.getXCoordinates(), 0, dst.getXCoordinates(), 0, dstLength);
+        assertIntArrayEquals("yCoordinates after append zero",
+                dstCopy.getYCoordinates(), 0, dst.getYCoordinates(), 0, dstLength);
+        assertIntArrayEquals("pointerIds after append zero",
+                dstCopy.getPointerIds(), 0, dst.getPointerIds(), 0, dstLength);
+        assertIntArrayEquals("times after append zero",
+                dstCopy.getTimes(), 0, dst.getTimes(), 0, dstLength);
+
+        dst.append(srcPointerId, srcTimes, srcXCoords, srcYCoords, 0, srcLength);
+        assertEquals("size after append", dstLength + srcLength, dst.getPointerSize());
+        assertTrue("primitive length after append",
+                dst.getPointerIds().length >= dstLength + srcLength);
+        assertIntArrayEquals("original xCoordinates values after append",
+                dstCopy.getXCoordinates(), 0, dst.getXCoordinates(), 0, dstLength);
+        assertIntArrayEquals("original yCoordinates values after append",
+                dstCopy.getYCoordinates(), 0, dst.getYCoordinates(), 0, dstLength);
+        assertIntArrayEquals("original pointerIds values after append",
+                dstCopy.getPointerIds(), 0, dst.getPointerIds(), 0, dstLength);
+        assertIntArrayEquals("original times values after append",
+                dstCopy.getTimes(), 0, dst.getTimes(), 0, dstLength);
+        assertIntArrayEquals("appended xCoordinates values after append",
+                srcXCoords.getPrimitiveArray(), 0, dst.getXCoordinates(), dstLength, srcLength);
+        assertIntArrayEquals("appended yCoordinates values after append",
+                srcYCoords.getPrimitiveArray(), 0, dst.getYCoordinates(), dstLength, srcLength);
+        assertIntArrayEquals("appended pointerIds values after append",
+                srcPointerIds, 0, dst.getPointerIds(), dstLength, srcLength);
+        assertIntArrayEquals("appended times values after append",
+                srcTimes.getPrimitiveArray(), 0, dst.getTimes(), dstLength, srcLength);
+    }
+
+    // TODO: Consolidate this method with
+    // {@link ResizableIntArrayTests#assertIntArrayEquals(String,int[],int,int[],int,int)}.
+    private static void assertIntArrayEquals(final String message, final int[] expecteds,
+            final int expectedPos, final int[] actuals, final int actualPos, final int length) {
+        if (expecteds == actuals) {
+            return;
+        }
+        if (expecteds == null || actuals == null) {
+            assertEquals(message, Arrays.toString(expecteds), Arrays.toString(actuals));
+            return;
+        }
+        if (expecteds.length < expectedPos + length || actuals.length < actualPos + length) {
+            fail(message + ": insufficient length: expecteds=" + Arrays.toString(expecteds)
+                    + " actuals=" + Arrays.toString(actuals));
+            return;
+        }
+        for (int i = 0; i < length; i++) {
+            assertEquals(message + " [" + i + "]",
+                    expecteds[i + expectedPos], actuals[i + actualPos]);
+        }
+    }
+
+    public void testShift() {
+        final InputPointers src = new InputPointers(DEFAULT_CAPACITY);
+        final int limit = 100;
+        final int shiftAmount = 20;
+        for (int i = 0; i < limit; i++) {
+            final int x = i;
+            final int y = i * 2;
+            final int pointerId = i * 3;
+            final int time = i * 4;
+            src.addPointer(x, y, pointerId, time);
+        }
+        src.shift(shiftAmount);
+        assertEquals("length after shift", src.getPointerSize(), limit - shiftAmount);
+        for (int i = 0; i < limit - shiftAmount; ++i) {
+            final int oldIndex = i + shiftAmount;
+            final int x = oldIndex;
+            final int y = oldIndex * 2;
+            final int pointerId = oldIndex * 3;
+            final int time = oldIndex * 4;
+            assertEquals("xCoordinates at " + i, x, src.getXCoordinates()[i]);
+            assertEquals("yCoordinates at " + i, y, src.getYCoordinates()[i]);
+            assertEquals("pointerIds at " + i, pointerId, src.getPointerIds()[i]);
+            assertEquals("times at " + i, time, src.getTimes()[i]);
+        }
+    }
+}