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      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      */
     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      */
     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      */
     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      */
     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      */
     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     /**
     67      * @title Arguments = 0 & -1
     68      */
     69     public void testB1() {
     70         T_ushr_int_1 t = new T_ushr_int_1();
     71         assertEquals(0, t.run(0, -1));
     72     }
     73 
     74     /**
     75      * @title Arguments = Integer.MAX_VALUE & 1
     76      */
     77     public void testB2() {
     78         T_ushr_int_1 t = new T_ushr_int_1();
     79         assertEquals(0x3FFFFFFF, t.run(Integer.MAX_VALUE, 1));
     80     }
     81 
     82     /**
     83      * @title Arguments = Integer.MIN_VALUE & 1
     84      */
     85     public void testB3() {
     86         T_ushr_int_1 t = new T_ushr_int_1();
     87         assertEquals(0x40000000, t.run(Integer.MIN_VALUE, 1));
     88     }
     89 
     90     /**
     91      * @title Arguments = 1 & 0
     92      */
     93     public void testB4() {
     94         T_ushr_int_1 t = new T_ushr_int_1();
     95         assertEquals(1, t.run(1, 0));
     96     }
     97 
     98 
     99 
    100     /**
    101      * @constraint B1
    102      * @title types of arguments - double, int
    103      */
    104     public void testVFE1() {
    105         load("dot.junit.opcodes.ushr_int.d.T_ushr_int_2", VerifyError.class);
    106     }
    107 
    108     /**
    109      * @constraint B1
    110      * @title types of arguments - int, long
    111      */
    112     public void testVFE2() {
    113         load("dot.junit.opcodes.ushr_int.d.T_ushr_int_3", VerifyError.class);
    114     }
    115 
    116     /**
    117      * @constraint B1
    118      * @title types of arguments - reference, int
    119      */
    120     public void testVFE3() {
    121         load("dot.junit.opcodes.ushr_int.d.T_ushr_int_4", VerifyError.class);
    122     }
    123 
    124     /**
    125      * @constraint A23
    126      * @title number of registers
    127      */
    128     public void testVFE4() {
    129         load("dot.junit.opcodes.ushr_int.d.T_ushr_int_6", VerifyError.class);
    130     }
    131 
    132     /**
    133      * @constraint B1
    134      * @title Types of arguments - int, float. The verifier checks that ints
    135      * and floats are not used interchangeably.
    136      */
    137     public void testVFE5() {
    138         load("dot.junit.opcodes.ushr_int.d.T_ushr_int_5", VerifyError.class);
    139     }
    140 
    141 }
    142