| /* |
| * Copyright (C) 2010 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.monkeyrunner.adb; |
| |
| import com.google.common.collect.Lists; |
| |
| import com.android.monkeyrunner.adb.LinearInterpolator.Point; |
| |
| import junit.framework.TestCase; |
| |
| import java.util.List; |
| |
| /** |
| * Unit tests for the LinerInterpolator class.S |
| */ |
| public class LinearInterpolatorTest extends TestCase { |
| private static class Collector implements LinearInterpolator.Callback { |
| private final List<LinearInterpolator.Point> points = Lists.newArrayList(); |
| |
| public List<LinearInterpolator.Point> getPoints() { |
| return points; |
| } |
| |
| public void end(Point input) { |
| points.add(input); |
| } |
| |
| public void start(Point input) { |
| points.add(input); |
| } |
| |
| public void step(Point input) { |
| points.add(input); |
| } |
| } |
| |
| List<Integer> STEP_POINTS = Lists.newArrayList(0, 100, 200, 300, 400, 500, 600, 700, 800, 900, |
| 1000); |
| List<Integer> REVERSE_STEP_POINTS = Lists.newArrayList(1000, 900, 800, 700, 600, 500, 400, 300, |
| 200, 100, 0); |
| |
| public void testLerpRight() { |
| LinearInterpolator lerp = new LinearInterpolator(10); |
| Collector collector = new Collector(); |
| lerp.interpolate(new LinearInterpolator.Point(0, 100), |
| new LinearInterpolator.Point(1000, 100), |
| collector); |
| |
| List<LinearInterpolator.Point> points = collector.getPoints(); |
| assertEquals(11, points.size()); |
| for (int x = 0; x < points.size(); x++) { |
| assertEquals(new Point(STEP_POINTS.get(x), 100), points.get(x)); |
| } |
| } |
| |
| public void testLerpLeft() { |
| LinearInterpolator lerp = new LinearInterpolator(10); |
| Collector collector = new Collector(); |
| lerp.interpolate(new LinearInterpolator.Point(1000, 100), |
| new LinearInterpolator.Point(0, 100), |
| collector); |
| |
| List<LinearInterpolator.Point> points = collector.getPoints(); |
| assertEquals(11, points.size()); |
| for (int x = 0; x < points.size(); x++) { |
| assertEquals(new Point(REVERSE_STEP_POINTS.get(x), 100), points.get(x)); |
| } |
| } |
| |
| public void testLerpUp() { |
| LinearInterpolator lerp = new LinearInterpolator(10); |
| Collector collector = new Collector(); |
| lerp.interpolate(new LinearInterpolator.Point(100, 1000), |
| new LinearInterpolator.Point(100, 0), |
| collector); |
| |
| List<LinearInterpolator.Point> points = collector.getPoints(); |
| assertEquals(11, points.size()); |
| for (int x = 0; x < points.size(); x++) { |
| assertEquals(new Point(100, REVERSE_STEP_POINTS.get(x)), points.get(x)); |
| } |
| } |
| |
| public void testLerpDown() { |
| LinearInterpolator lerp = new LinearInterpolator(10); |
| Collector collector = new Collector(); |
| lerp.interpolate(new LinearInterpolator.Point(100, 0), |
| new LinearInterpolator.Point(100, 1000), |
| collector); |
| |
| List<LinearInterpolator.Point> points = collector.getPoints(); |
| assertEquals(11, points.size()); |
| for (int x = 0; x < points.size(); x++) { |
| assertEquals(new Point(100, STEP_POINTS.get(x)), points.get(x)); |
| } |
| } |
| |
| public void testLerpNW() { |
| LinearInterpolator lerp = new LinearInterpolator(10); |
| Collector collector = new Collector(); |
| lerp.interpolate(new LinearInterpolator.Point(0, 0), |
| new LinearInterpolator.Point(1000, 1000), |
| collector); |
| |
| List<LinearInterpolator.Point> points = collector.getPoints(); |
| assertEquals(11, points.size()); |
| for (int x = 0; x < points.size(); x++) { |
| assertEquals(new Point(STEP_POINTS.get(x), STEP_POINTS.get(x)), points.get(x)); |
| } |
| } |
| |
| public void testLerpNE() { |
| LinearInterpolator lerp = new LinearInterpolator(10); |
| Collector collector = new Collector(); |
| lerp.interpolate(new LinearInterpolator.Point(1000, 1000), |
| new LinearInterpolator.Point(0, 0), |
| collector); |
| |
| List<LinearInterpolator.Point> points = collector.getPoints(); |
| assertEquals(11, points.size()); |
| for (int x = 0; x < points.size(); x++) { |
| assertEquals(new Point(REVERSE_STEP_POINTS.get(x), REVERSE_STEP_POINTS.get(x)), points.get(x)); |
| } |
| } |
| } |