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.div_int_2addr; 18 19 import dot.junit.DxTestCase; 20 import dot.junit.DxUtil; 21 import dot.junit.opcodes.div_int_2addr.d.T_div_int_2addr_1; 22 import dot.junit.opcodes.div_int_2addr.d.T_div_int_2addr_5; 23 24 public class Test_div_int_2addr extends DxTestCase { 25 /** 26 * @title Arguments = 8, 4 27 */ 28 public void testN1() { 29 T_div_int_2addr_1 t = new T_div_int_2addr_1(); 30 assertEquals(2, t.run(8, 4)); 31 } 32 33 /** 34 * @title Rounding 35 */ 36 public void testN2() { 37 T_div_int_2addr_1 t = new T_div_int_2addr_1(); 38 assertEquals(268435455, t.run(1073741823, 4)); 39 } 40 41 /** 42 * @title Dividend = 0 43 */ 44 public void testN3() { 45 T_div_int_2addr_1 t = new T_div_int_2addr_1(); 46 assertEquals(0, t.run(0, 4)); 47 } 48 49 /** 50 * @title Dividend is negative 51 */ 52 public void testN4() { 53 T_div_int_2addr_1 t = new T_div_int_2addr_1(); 54 assertEquals(-3, t.run(-10, 3)); 55 } 56 57 /** 58 * @title Divisor is negative 59 */ 60 public void testN5() { 61 T_div_int_2addr_1 t = new T_div_int_2addr_1(); 62 assertEquals(-357913941, t.run(1073741824, -3)); 63 } 64 65 /** 66 * @title Both Dividend and divisor are negative 67 */ 68 public void testN6() { 69 T_div_int_2addr_1 t = new T_div_int_2addr_1(); 70 assertEquals(5965, t.run(-17895697, -3000)); 71 } 72 73 /** 74 * @title Arguments = Integer.MIN_VALUE, -1 75 */ 76 public void testB1() { 77 T_div_int_2addr_1 t = new T_div_int_2addr_1(); 78 // result is MIN_VALUE because overflow occurs in this case 79 assertEquals(Integer.MIN_VALUE, t.run(Integer.MIN_VALUE, -1)); 80 } 81 82 /** 83 * @title Arguments = Integer.MIN_VALUE, 1 84 */ 85 public void testB2() { 86 T_div_int_2addr_1 t = new T_div_int_2addr_1(); 87 assertEquals(Integer.MIN_VALUE, t.run(Integer.MIN_VALUE, 1)); 88 } 89 90 /** 91 * @title Arguments = Integer.MAX_VALUE, 1 92 */ 93 public void testB3() { 94 T_div_int_2addr_1 t = new T_div_int_2addr_1(); 95 assertEquals(Integer.MAX_VALUE, t.run(Integer.MAX_VALUE, 1)); 96 } 97 98 /** 99 * @title Arguments = Integer.MIN_VALUE, Integer.MAX_VALUE 100 */ 101 public void testB4() { 102 T_div_int_2addr_1 t = new T_div_int_2addr_1(); 103 assertEquals(-1, t.run(Integer.MIN_VALUE, Integer.MAX_VALUE)); 104 } 105 106 /** 107 * @title Arguments = 1, Integer.MAX_VALUE 108 */ 109 public void testB5() { 110 T_div_int_2addr_1 t = new T_div_int_2addr_1(); 111 assertEquals(0, t.run(1, Integer.MAX_VALUE)); 112 } 113 114 /** 115 * @title Arguments = 1, Integer.MIN_VALUE 116 */ 117 public void testB6() { 118 T_div_int_2addr_1 t = new T_div_int_2addr_1(); 119 assertEquals(0, t.run(1, Integer.MIN_VALUE)); 120 } 121 122 /** 123 * @title Divisor is 0 124 */ 125 public void testE1() { 126 T_div_int_2addr_1 t = new T_div_int_2addr_1(); 127 try { 128 t.run(1, 0); 129 fail("expected ArithmeticException"); 130 } catch (ArithmeticException ae) { 131 // expected 132 } 133 } 134 135 136 137 /** 138 * @constraint B1 139 * @title types of arguments - int, double 140 */ 141 public void testVFE1() { 142 try { 143 Class.forName("dot.junit.opcodes.div_int_2addr.d.T_div_int_2addr_2"); 144 fail("expected a verification exception"); 145 } catch (Throwable t) { 146 DxUtil.checkVerifyException(t); 147 } 148 } 149 150 /** 151 * @constraint B1 152 * @title types of arguments - long, int 153 */ 154 public void testVFE2() { 155 try { 156 Class.forName("dot.junit.opcodes.div_int_2addr.d.T_div_int_2addr_3"); 157 fail("expected a verification exception"); 158 } catch (Throwable t) { 159 DxUtil.checkVerifyException(t); 160 } 161 } 162 163 /** 164 * @constraint B1 165 * @title types of arguments - reference, int 166 */ 167 public void testVFE3() { 168 try { 169 Class.forName("dot.junit.opcodes.div_int_2addr.d.T_div_int_2addr_4"); 170 fail("expected a verification exception"); 171 } catch (Throwable t) { 172 DxUtil.checkVerifyException(t); 173 } 174 } 175 176 /** 177 * @constraint A23 178 * @title number of registers 179 */ 180 public void testVFE4() { 181 try { 182 Class.forName("dot.junit.opcodes.div_int_2addr.d.T_div_int_2addr_6"); 183 fail("expected a verification exception"); 184 } catch (Throwable t) { 185 DxUtil.checkVerifyException(t); 186 } 187 } 188 189 /** 190 * @constraint B1 191 * @title Types of arguments - int, float. The verifier checks that ints 192 * and floats are not used interchangeably. 193 */ 194 public void testVFE5() { 195 try { 196 Class.forName("dot.junit.opcodes.div_int_2addr.d.T_div_int_2addr_5"); 197 fail("expected a verification exception"); 198 } catch (Throwable t) { 199 DxUtil.checkVerifyException(t); 200 } 201 } 202 } 203
