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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.goto_32;
     18 
     19 import dot.junit.DxTestCase;
     20 import dot.junit.DxUtil;
     21 import dot.junit.opcodes.goto_32.d.T_goto_32_1;
     22 
     23 public class Test_goto_32 extends DxTestCase {
     24        /**
     25         * @title check forward and backward goto. This test also tests constraint C17 allowing to have
     26         * backward goto as a last opcode in the method.
     27         */
     28        public void testN1() {
     29            T_goto_32_1 t = new T_goto_32_1();
     30            assertEquals(0, t.run(20));
     31        }
     32 
     33        /**
     34         * @constraint A6
     35         * @title branch target is inside instruction
     36         */
     37        public void testVFE1() {
     38            try {
     39                Class.forName("dot.junit.opcodes.goto_32.d.T_goto_32_2");
     40                fail("expected a verification exception");
     41            } catch (Throwable t) {
     42                DxUtil.checkVerifyException(t);
     43            }
     44        }
     45 
     46        /**
     47         * @constraint A6
     48         * @title branch target shall be inside the method
     49         */
     50        public void testVFE2() {
     51            try {
     52                Class.forName("dot.junit.opcodes.goto_32.d.T_goto_32_3");
     53                fail("expected a verification exception");
     54            } catch (Throwable t) {
     55                DxUtil.checkVerifyException(t);
     56            }
     57        }
     58 
     59        /**
     60         *
     61         * @constraint n/a
     62         * @title zero offset - no exception expected
     63         */
     64        public void testVFE3() {
     65            try {
     66                Class.forName("dot.junit.opcodes.goto_32.d.T_goto_32_4");
     67                // no exception is expected
     68            } catch (Throwable t) {
     69                fail("not expected" + t);
     70            }
     71        }
     72 
     73 }
     74