1 /* 2 * Copyright (C) 2016 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 androidx.core.math; 18 19 import static org.junit.Assert.assertEquals; 20 21 import android.support.test.filters.SmallTest; 22 import android.support.test.runner.AndroidJUnit4; 23 24 import org.junit.Test; 25 import org.junit.runner.RunWith; 26 27 @RunWith(AndroidJUnit4.class) 28 @SmallTest 29 public class MathUtilsTest { 30 31 @Test 32 public void testClamp() { 33 // Int 34 assertEquals(0, MathUtils.clamp(-4, 0, 7)); 35 assertEquals(3, MathUtils.clamp(3, -2, 7)); 36 assertEquals(0, MathUtils.clamp(0, 0, 7)); 37 assertEquals(7, MathUtils.clamp(7, 0, 7)); 38 assertEquals(7, MathUtils.clamp(8, -2, 7)); 39 40 // Double 41 assertEquals(0.0, MathUtils.clamp(-0.4, 0.0, 7.0), 0.0); 42 assertEquals(3.0, MathUtils.clamp(3.0, 0.0, 7.0), 0.0); 43 assertEquals(0.1, MathUtils.clamp(0.1, 0.0, 7.0), 0.0); 44 assertEquals(7.0, MathUtils.clamp(7.0, 0.0, 7.0), 0.0); 45 assertEquals(-0.6, MathUtils.clamp(-0.7, -0.6, 7.0), 0.0); 46 47 // Float 48 assertEquals(0.0f, MathUtils.clamp(-0.4f, 0.0f, 7.0f), 0.0f); 49 assertEquals(3.0f, MathUtils.clamp(3.0f, 0.0f, 7.0f), 0.0f); 50 assertEquals(0.1f, MathUtils.clamp(0.1f, 0.0f, 7.0f), 0.0f); 51 assertEquals(7.0f, MathUtils.clamp(7.0f, 0.0f, 7.0f), 0.0f); 52 assertEquals(-0.6f, MathUtils.clamp(-0.7f, -0.6f, 7.0f), 0.0f); 53 } 54 } 55
