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/*******************************************************************************
* Copyright (c) 2009, 2022 Mountainminds GmbH & Co. KG and Contributors
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Evgeny Mandrikov - initial API and implementation
*
*******************************************************************************/
package org.jacoco.core.internal.analysis.filter;
import org.jacoco.core.internal.instr.InstrSupport;
import org.junit.Test;
import org.objectweb.asm.Label;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.Type;
import org.objectweb.asm.tree.MethodNode;
/**
* Unit tests for {@link AssertFilter}.
*/
public class AssertFilterTest extends FilterTestBase {
private final AssertFilter filter = new AssertFilter();
/**
* <code><pre>
* class Example {
* void example(boolean b) {
* ...
* assert b : "message";
* ...
* }
* }
* </pre></code>
*/
@Test
public void should_filter_static_initializer() {
context.className = "Example";
final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION,
Opcodes.ACC_STATIC, "<clinit>", "()V", null, null);
m.visitLdcInsn(Type.getType("LExample;"));
final Range range = new Range();
range.fromInclusive = m.instructions.getLast();
m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Class",
"desiredAssertionStatus", "()Z", false);
final Label label1 = new Label();
final Label label2 = new Label();
m.visitJumpInsn(Opcodes.IFNE, label1);
m.visitInsn(Opcodes.ICONST_1);
m.visitJumpInsn(Opcodes.GOTO, label2);
m.visitLabel(label1);
m.visitInsn(Opcodes.ICONST_0);
m.visitLabel(label2);
m.visitFieldInsn(Opcodes.PUTSTATIC, "Example", "$assertionsDisabled",
"Z");
range.toInclusive = m.instructions.getLast();
m.visitInsn(Opcodes.RETURN);
filter.filter(m, context, output);
assertIgnored(range);
}
/**
* <code><pre>
* class Example {
* static final f;
*
* static {
* f = !Example.class.desiredAssertionStatus();
* }
* }
* </pre></code>
*/
@Test
public void should_not_filter_static_initializer_when_field_name_does_not_match() {
context.className = "Example";
final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION,
Opcodes.ACC_STATIC, "<clinit>", "()V", null, null);
m.visitLdcInsn(Type.getType("LExample;"));
m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Class",
"desiredAssertionStatus", "()Z", false);
final Label label1 = new Label();
final Label label2 = new Label();
m.visitJumpInsn(Opcodes.IFNE, label1);
m.visitInsn(Opcodes.ICONST_1);
m.visitJumpInsn(Opcodes.GOTO, label2);
m.visitLabel(label1);
m.visitInsn(Opcodes.ICONST_0);
m.visitLabel(label2);
m.visitFieldInsn(Opcodes.PUTSTATIC, "Foo", "f", "Z");
m.visitInsn(Opcodes.RETURN);
filter.filter(m, context, output);
assertIgnored();
}
/**
* <code><pre>
* class Example {
* void example(boolean b) {
* ...
* assert b : "message";
* ...
* }
* }
* </pre></code>
*/
@Test
public void should_filter_assert() {
context.className = "Example";
final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION, 0,
"example", "()V", null, null);
m.visitInsn(Opcodes.NOP);
m.visitFieldInsn(Opcodes.GETSTATIC, "Example", "$assertionsDisabled",
"Z");
final Label label = new Label();
m.visitJumpInsn(Opcodes.IFNE, label);
final Range range = new Range(m.instructions.getLast(),
m.instructions.getLast());
m.visitVarInsn(Opcodes.ILOAD, 1);
m.visitJumpInsn(Opcodes.IFNE, label);
m.visitTypeInsn(Opcodes.NEW, "java/lang/AssertionError");
m.visitInsn(Opcodes.DUP);
m.visitLdcInsn("message");
m.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/AssertionError",
"<init>", "(Ljava/lang/Object;)V", false);
m.visitInsn(Opcodes.ATHROW);
m.visitLabel(label);
m.visitInsn(Opcodes.NOP);
filter.filter(m, context, output);
assertIgnored(range);
}
}
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