1 /* 2 * Copyright (C) 2024 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 package com.android.nfc; 17 18 import static org.junit.Assert.assertArrayEquals; 19 import static org.junit.Assert.assertEquals; 20 import static org.junit.Assert.assertFalse; 21 import static org.junit.Assert.assertTrue; 22 23 import org.junit.Test; 24 25 import java.util.List; 26 27 public class ArrayUtilsTest { 28 @Test testIsEmptyEmptyArray()29 public void testIsEmptyEmptyArray() { 30 assertTrue(ArrayUtils.isEmpty((int[]) null)); 31 assertTrue(ArrayUtils.isEmpty(new int[0])); 32 } 33 34 @Test testIsEmptyNonEmptyArray()35 public void testIsEmptyNonEmptyArray() { 36 assertFalse(ArrayUtils.isEmpty(new int[] {1, 2, 3})); 37 } 38 39 @Test testIsEmptyByteArrayNonEmptyArray()40 public void testIsEmptyByteArrayNonEmptyArray() { 41 assertFalse(ArrayUtils.isEmpty(new byte[] {1, 2, 3})); 42 } 43 44 @Test testIsEmptyByteArrayNullArray()45 public void testIsEmptyByteArrayNullArray() { 46 assertTrue(ArrayUtils.isEmpty((byte[]) null)); 47 } 48 49 @Test testToPrimitiveSingleElementList()50 public void testToPrimitiveSingleElementList() { 51 List<byte[]> list = List.of(new byte[] {1, 2, 3}); 52 byte[] result = ArrayUtils.toPrimitive(list); 53 assertArrayEquals(new byte[] {1, 2, 3}, result); 54 } 55 56 @Test testToPrimitiveEmptyList()57 public void testToPrimitiveEmptyList() { 58 List<byte[]> list = List.of(); 59 byte[] result = ArrayUtils.toPrimitive(list); 60 assertArrayEquals(new byte[0], result); 61 } 62 63 @Test testToIndexOfNotNullArray()64 public void testToIndexOfNotNullArray() { 65 assertEquals(2, ArrayUtils.indexOf(new Integer[] {2, 0, -1, 5, 1}, -1)); 66 } 67 68 @Test testToIndexOfNullArray()69 public void testToIndexOfNullArray() { 70 assertEquals(-1, ArrayUtils.indexOf(null, 8)); 71 } 72 73 @Test testToIndexOfValueNotFound()74 public void testToIndexOfValueNotFound() { 75 assertEquals(-1, ArrayUtils.indexOf(new Character[] {'a', 'e', 'i', 'o', 'u'}, 'k')); 76 } 77 }