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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:
* Marc R. Hoffmann - initial API and implementation
*
*******************************************************************************/
package org.jacoco.core.test.perf;
import org.jacoco.core.instr.Instrumenter;
import org.jacoco.core.runtime.IRuntime;
import org.jacoco.core.runtime.LoggerRuntime;
import org.jacoco.core.test.TargetLoader;
/**
* Scenario to measure the overhead in terms of additional byte code size
* through instrumentation.
*/
public class InstrumentationSizeSzenario implements IPerfScenario {
private final Class<?> target;
public InstrumentationSizeSzenario(Class<?> target) {
this.target = target;
}
public void run(IPerfOutput output) throws Exception {
final IRuntime runtime = new LoggerRuntime();
final Instrumenter instr = new Instrumenter(runtime);
final byte[] original = TargetLoader.getClassDataAsBytes(target);
final byte[] instrumented = instr.instrument(original, "");
output.writeByteResult("instrumented class", instrumented.length,
original.length);
}
}
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