1 /* 2 * Copyright (C) 2013 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.keyboard.internal; 18 19 import com.android.inputmethod.keyboard.internal.MatrixUtils.MatrixOperationFailedException; 20 21 import android.test.AndroidTestCase; 22 import android.test.suitebuilder.annotation.SmallTest; 23 24 @SmallTest 25 public class SmoothingUtilsTests extends AndroidTestCase { 26 // "run tests" -c com.android.inputmethod.keyboard.internal.SmoothingUtilsTests 27 private static final boolean DEBUG = false; 28 testGet3DParamaters()29 public void testGet3DParamaters() { 30 final float[] xs = new float[] {0, 1, 2, 3, 4}; 31 final float[] ys = new float[] {1, 4, 15, 40, 85}; // y = x^3 + x^2 + x + 1 32 final float[][] retval = new float[4][1]; 33 try { 34 SmoothingUtils.get3DParameters(xs, ys, retval); 35 if (DEBUG) { 36 MatrixUtils.dump("3d", retval); 37 } 38 for (int i = 0; i < 4; ++i) { 39 MatrixUtilsTests.assertEqualsFloat(retval[i][0], 1.0f, 0.001f); 40 } 41 } catch (MatrixOperationFailedException e) { 42 assertTrue(false); 43 } 44 } 45 } 46