1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * https://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.bcel.generic;
20
21 import static org.junit.jupiter.api.Assertions.assertNotNull;
22 import static org.junit.jupiter.api.Assertions.assertThrows;
23
24 import org.junit.jupiter.api.Test;
25
26 class BranchHandleTest {
27
28 @Test
29 void testGetBHnull() {
30 assertThrows(ClassGenException.class, () -> BranchHandle.getBranchHandle(null));
31 }
32
33 @Test
34 void testsetInstructionBI() {
35 final BranchHandle bh = BranchHandle.getBranchHandle(new GOTO(null)); // have to start with a valid BI
36 assertNotNull(bh);
37 bh.setInstruction(new GOTO(null));
38 assertNotNull(bh);
39 }
40
41 @Test
42 void testsetInstructionnotBI() {
43 final BranchHandle bh = BranchHandle.getBranchHandle(new GOTO(null)); // have to start with a valid BI
44 assertNotNull(bh);
45 assertThrows(ClassGenException.class, () -> bh.setInstruction(new NOP()));
46 }
47
48 // Test that setInstruction only allows BranchInstructions
49 @Test
50 void testsetInstructionNull() {
51 final BranchHandle bh = BranchHandle.getBranchHandle(new GOTO(null)); // have to start with a valid BI
52 assertNotNull(bh);
53 assertThrows(ClassGenException.class, () -> bh.setInstruction(null));
54 }
55 }