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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 dxc.junit.opcodes.ishr;
     18 
     19 import dxc.junit.DxTestCase;
     20 import dxc.junit.DxUtil;
     21 import dxc.junit.opcodes.ishr.jm.T_ishr_1;
     22 
     23 public class Test_ishr extends DxTestCase {
     24 
     25     /**
     26      * @title  15 >> 1
     27      */
     28     public void testN1() {
     29         T_ishr_1 t = new T_ishr_1();
     30         assertEquals(7, t.run(15, 1));
     31     }
     32 
     33     /**
     34      * @title  33 >> 2
     35      */
     36     public void testN2() {
     37         T_ishr_1 t = new T_ishr_1();
     38         assertEquals(8, t.run(33, 2));
     39     }
     40 
     41     /**
     42      * @title  -15 >> 1
     43      */
     44     public void testN3() {
     45         T_ishr_1 t = new T_ishr_1();
     46         assertEquals(-8, t.run(-15, 1));
     47     }
     48 
     49     /**
     50      * @title  Arguments = 1 & -1
     51      */
     52     public void testN4() {
     53         T_ishr_1 t = new T_ishr_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_ishr_1 t = new T_ishr_1();
     62         assertEquals(16, t.run(33, 33));
     63     }
     64 
     65     /**
     66      * @title  Arguments = 0 & -1
     67      */
     68     public void testB1() {
     69         T_ishr_1 t = new T_ishr_1();
     70         assertEquals(0, t.run(0, -1));
     71     }
     72 
     73     /**
     74      * @title  Arguments = Integer.MAX_VALUE & 1
     75      */
     76     public void testB2() {
     77         T_ishr_1 t = new T_ishr_1();
     78         assertEquals(0x3FFFFFFF, t.run(Integer.MAX_VALUE, 1));
     79     }
     80 
     81     /**
     82      * @title  Arguments = Integer.MIN_VALUE & 1
     83      */
     84     public void testB3() {
     85         T_ishr_1 t = new T_ishr_1();
     86         assertEquals(0xc0000000, t.run(Integer.MIN_VALUE, 1));
     87     }
     88 
     89     /**
     90      * @title  Arguments = 1 & 0
     91      */
     92     public void testB4() {
     93         T_ishr_1 t = new T_ishr_1();
     94         assertEquals(1, t.run(1, 0));
     95     }
     96 
     97     /**
     98      * @constraint 4.8.2.1
     99      * @title number of arguments
    100      */
    101     public void testVFE1() {
    102         try {
    103             Class.forName("dxc.junit.opcodes.ishr.jm.T_ishr_2");
    104             fail("expected a verification exception");
    105         } catch (Throwable t) {
    106             DxUtil.checkVerifyException(t);
    107         }
    108     }
    109 
    110     /**
    111      * @constraint 4.8.2.1
    112      * @title types of arguments - double & int
    113      */
    114     public void testVFE2() {
    115         try {
    116             Class.forName("dxc.junit.opcodes.ishr.jm.T_ishr_3");
    117             fail("expected a verification exception");
    118         } catch (Throwable t) {
    119             DxUtil.checkVerifyException(t);
    120         }
    121     }
    122 
    123     /**
    124      * @constraint 4.8.2.1
    125      * @title types of arguments - long & int
    126      */
    127     public void testVFE3() {
    128         try {
    129             Class.forName("dxc.junit.opcodes.ishr.jm.T_ishr_4");
    130             fail("expected a verification exception");
    131         } catch (Throwable t) {
    132             DxUtil.checkVerifyException(t);
    133         }
    134     }
    135 
    136     /**
    137      * @constraint 4.8.2.1
    138      * @title types of arguments - reference & int
    139      */
    140     public void testVFE4() {
    141         try {
    142             Class.forName("dxc.junit.opcodes.ishr.jm.T_ishr_5");
    143             fail("expected a verification exception");
    144         } catch (Throwable t) {
    145             DxUtil.checkVerifyException(t);
    146         }
    147     }
    148 
    149 }
    150