1/*******************************************************************************
2 * Copyright (c) 2009, 2017 Mountainminds GmbH & Co. KG and Contributors
3 * All rights reserved. This program and the accompanying materials
4 * are made available under the terms of the Eclipse Public License v1.0
5 * which accompanies this distribution, and is available at
6 * http://www.eclipse.org/legal/epl-v10.html
7 *
8 * Contributors:
9 *    Marc R. Hoffmann - initial API and implementation
10 *
11 *******************************************************************************/
12package org.jacoco.core.internal.instr;
13
14import static org.junit.Assert.assertNull;
15
16import org.junit.Before;
17import org.junit.Test;
18import org.objectweb.asm.ClassVisitor;
19import org.objectweb.asm.MethodVisitor;
20
21/**
22 * Unit tests for {@link ClassInstrumenter}.
23 */
24public class ClassInstrumenterTest implements IProbeArrayStrategy {
25
26	private ClassInstrumenter instrumenter;
27
28	@Before
29	public void setup() {
30		instrumenter = new ClassInstrumenter(this, new ClassVisitor(
31				InstrSupport.ASM_API_VERSION) {
32		});
33	}
34
35	@Test(expected = IllegalStateException.class)
36	public void testInstrumentInstrumentedClass1() {
37		instrumenter.visitField(InstrSupport.DATAFIELD_ACC,
38				InstrSupport.DATAFIELD_NAME, InstrSupport.DATAFIELD_DESC, null,
39				null);
40	}
41
42	@Test(expected = IllegalStateException.class)
43	public void testInstrumentInstrumentedClass2() {
44		instrumenter.visitMethod(InstrSupport.INITMETHOD_ACC,
45				InstrSupport.INITMETHOD_NAME, InstrSupport.INITMETHOD_DESC,
46				null, null);
47	}
48
49	@Test
50	public void testNoMethodVisitor() {
51		instrumenter = new ClassInstrumenter(this, new ClassVisitor(
52				InstrSupport.ASM_API_VERSION) {
53			@Override
54			public MethodVisitor visitMethod(int access, String name,
55					String desc, String signature, String[] exceptions) {
56				return null;
57			}
58		});
59		assertNull(instrumenter.visitMethod(0, "foo", "()V", null, null));
60	}
61
62	// === IProbeArrayStrategy ===
63
64	public int storeInstance(MethodVisitor mv, boolean clinit, int variable) {
65		return 0;
66	}
67
68	public void addMembers(ClassVisitor cv, int probeCount) {
69	}
70
71}
72