| /******************************************************************************* |
| * Copyright (c) 2009, 2015 Mountainminds GmbH & Co. KG and Contributors |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Marc R. Hoffmann - initial API and implementation |
| * |
| *******************************************************************************/ |
| package org.jacoco.examples; |
| |
| import static org.hamcrest.core.Is.is; |
| import static org.junit.Assert.assertThat; |
| import static org.junit.Assert.fail; |
| import static org.junit.matchers.JUnitMatchers.containsString; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.PrintStream; |
| import java.io.UnsupportedEncodingException; |
| |
| import org.hamcrest.Matcher; |
| import org.junit.rules.ExternalResource; |
| |
| /** |
| * In-Memory buffer to assert console output. |
| */ |
| public class ConsoleOutput extends ExternalResource { |
| |
| private final ByteArrayOutputStream buffer; |
| |
| public final PrintStream stream; |
| |
| public ConsoleOutput() { |
| this.buffer = new ByteArrayOutputStream(); |
| try { |
| this.stream = new PrintStream(buffer, true, "UTF-8"); |
| } catch (UnsupportedEncodingException e) { |
| throw new AssertionError(e.getMessage()); |
| } |
| } |
| |
| @Override |
| protected void after() { |
| buffer.reset(); |
| } |
| |
| public static Matcher<String> containsLine(String line) { |
| return containsString(String.format("%s%n", line)); |
| } |
| |
| public static Matcher<String> isEmpty() { |
| return is(""); |
| } |
| |
| public String getContents() { |
| try { |
| return new String(buffer.toByteArray(), "UTF-8"); |
| } catch (UnsupportedEncodingException e) { |
| fail(e.getMessage()); |
| return ""; |
| } |
| } |
| |
| public void expect(Matcher<String> matcher) { |
| assertThat(getContents(), matcher); |
| } |
| |
| } |