1 /* 2 * Copyright (C) 2008 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 dot.junit.opcodes.ushr_int; 18 19 import dot.junit.DxTestCase; 20 import dot.junit.DxUtil; 21 import dot.junit.opcodes.ushr_int.d.T_ushr_int_1; 22 import dot.junit.opcodes.ushr_int.d.T_ushr_int_5; 23 24 public class Test_ushr_int extends DxTestCase { 25 /** 26 * @title 15 >> 1 27 */ testN1()28 public void testN1() { 29 T_ushr_int_1 t = new T_ushr_int_1(); 30 assertEquals(7, t.run(15, 1)); 31 } 32 33 /** 34 * @title 33 >> 2 35 */ testN2()36 public void testN2() { 37 T_ushr_int_1 t = new T_ushr_int_1(); 38 assertEquals(8, t.run(33, 2)); 39 } 40 41 /** 42 * @title -15 >> 1 43 */ testN3()44 public void testN3() { 45 T_ushr_int_1 t = new T_ushr_int_1(); 46 assertEquals(0x7FFFFFF8, t.run(-15, 1)); 47 } 48 49 /** 50 * @title Arguments = 1 & -1 51 */ testN4()52 public void testN4() { 53 T_ushr_int_1 t = new T_ushr_int_1(); 54 assertEquals(0, t.run(1, -1)); 55 } 56 57 /** 58 * @title Verify that shift distance is actually in range 0 to 32. 59 */ testN5()60 public void testN5() { 61 T_ushr_int_1 t = new T_ushr_int_1(); 62 assertEquals(16, t.run(33, 33)); 63 } 64 65 /** 66 * @title Types of arguments - int, float. Dalvik doens't distinguish 32-bits types internally, 67 * so this (int >>> float) makes no sense but shall not crash the VM. 68 */ testN6()69 public void testN6() { 70 T_ushr_int_5 t = new T_ushr_int_5(); 71 try { 72 t.run(1, 3.14f); 73 } catch (Throwable e) { 74 } 75 } 76 77 78 /** 79 * @title Arguments = 0 & -1 80 */ testB1()81 public void testB1() { 82 T_ushr_int_1 t = new T_ushr_int_1(); 83 assertEquals(0, t.run(0, -1)); 84 } 85 86 /** 87 * @title Arguments = Integer.MAX_VALUE & 1 88 */ testB2()89 public void testB2() { 90 T_ushr_int_1 t = new T_ushr_int_1(); 91 assertEquals(0x3FFFFFFF, t.run(Integer.MAX_VALUE, 1)); 92 } 93 94 /** 95 * @title Arguments = Integer.MIN_VALUE & 1 96 */ testB3()97 public void testB3() { 98 T_ushr_int_1 t = new T_ushr_int_1(); 99 assertEquals(0x40000000, t.run(Integer.MIN_VALUE, 1)); 100 } 101 102 /** 103 * @title Arguments = 1 & 0 104 */ testB4()105 public void testB4() { 106 T_ushr_int_1 t = new T_ushr_int_1(); 107 assertEquals(1, t.run(1, 0)); 108 } 109 110 111 112 /** 113 * @constraint B1 114 * @title types of arguments - double, int 115 */ testVFE1()116 public void testVFE1() { 117 try { 118 Class.forName("dot.junit.opcodes.ushr_int.d.T_ushr_int_2"); 119 fail("expected a verification exception"); 120 } catch (Throwable t) { 121 DxUtil.checkVerifyException(t); 122 } 123 } 124 125 /** 126 * @constraint B1 127 * @title types of arguments - int, long 128 */ testVFE2()129 public void testVFE2() { 130 try { 131 Class.forName("dot.junit.opcodes.ushr_int.d.T_ushr_int_3"); 132 fail("expected a verification exception"); 133 } catch (Throwable t) { 134 DxUtil.checkVerifyException(t); 135 } 136 } 137 138 /** 139 * @constraint B1 140 * @title types of arguments - reference, int 141 */ testVFE3()142 public void testVFE3() { 143 try { 144 Class.forName("dot.junit.opcodes.ushr_int.d.T_ushr_int_4"); 145 fail("expected a verification exception"); 146 } catch (Throwable t) { 147 DxUtil.checkVerifyException(t); 148 } 149 } 150 151 /** 152 * @constraint A23 153 * @title number of registers 154 */ testVFE4()155 public void testVFE4() { 156 try { 157 Class.forName("dot.junit.opcodes.ushr_int.d.T_ushr_int_6"); 158 fail("expected a verification exception"); 159 } catch (Throwable t) { 160 DxUtil.checkVerifyException(t); 161 } 162 } 163 164 } 165