1 /* 2 * Copyright (C) 2007 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 android.util; 18 19 import junit.framework.TestCase; 20 import android.test.suitebuilder.annotation.SmallTest; 21 22 public class FloatMathTest extends TestCase { 23 24 @SmallTest testSqrt()25 public void testSqrt() { 26 assertEquals(7, FloatMath.sqrt(49), 0); 27 assertEquals(10, FloatMath.sqrt(100), 0); 28 assertEquals(0, FloatMath.sqrt(0), 0); 29 assertEquals(1, FloatMath.sqrt(1), 0); 30 } 31 32 @SmallTest testFloor()33 public void testFloor() { 34 assertEquals(78, FloatMath.floor(78.89f), 0); 35 assertEquals(-79, FloatMath.floor(-78.89f), 0); 36 } 37 38 @SmallTest testCeil()39 public void testCeil() { 40 assertEquals(79, FloatMath.ceil(78.89f), 0); 41 assertEquals(-78, FloatMath.ceil(-78.89f), 0); 42 } 43 44 @SmallTest testSin()45 public void testSin() { 46 assertEquals(0.0, FloatMath.sin(0), 0); 47 assertEquals(0.8414709848078965f, FloatMath.sin(1), 0); 48 } 49 50 @SmallTest testCos()51 public void testCos() { 52 assertEquals(1.0f, FloatMath.cos(0), 0); 53 assertEquals(0.5403023058681398f, FloatMath.cos(1), 0); 54 } 55 } 56