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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.opc_goto;
     18 
     19 import dot.junit.DxTestCase;
     20 import dot.junit.DxUtil;
     21 import dot.junit.opcodes.opc_goto.d.T_opc_goto_1;
     22 
     23 public class Test_opc_goto extends DxTestCase {
     24    /**
     25     * @title 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_opc_goto_1 t = new T_opc_goto_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.opc_goto.d.T_opc_goto_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.opc_goto.d.T_opc_goto_3");
     53            fail("expected a verification exception");
     54        } catch (Throwable t) {
     55            DxUtil.checkVerifyException(t);
     56        }
     57    }
     58 
     59    /**
     60     * @constraint n/a
     61     * @title zero offset
     62     */
     63    public void testVFE3() {
     64        try {
     65            Class.forName("dot.junit.opcodes.opc_goto.d.T_opc_goto_4");
     66            fail("expected a verification exception");
     67        } catch (Throwable t) {
     68            DxUtil.checkVerifyException(t);
     69        }
     70    }
     71 
     72 }
     73