content: /*******************************************************************************
   * Copyright (c) 2009, 2019 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.cli.internal;
  
  import org.junit.Test;
  
  /**
   * Unit tests for {@link Main}.
   */
  public class MainTest extends CommandTestBase {
  
  	@Test
  	public void should_print_usage_when_no_arguments_given() throws Exception {
  		execute();
  
  		assertFailure();
  		assertNoOutput(out);
  		assertContains("\"<command>\"", err);
  		assertContains("Usage: java -jar jacococli.jar --help | <command>",
  				err);
  		assertContains("Command line interface for JaCoCo.", err);
  	}
  
  	@Test
  	public void should_print_error_message_when_invalid_command_is_given()
  			throws Exception {
  		execute("foo");
  
  		assertFailure();
  		assertNoOutput(out);
  		assertContains("\"foo\" is not a valid value for \"<command>\"", err);
  		assertContains("Usage: java -jar jacococli.jar --help | <command>",
  				err);
  	}
  
  	@Test
  	public void should_print_general_usage_when_help_option_is_given()
  			throws Exception {
  		execute("--help");
  
  		assertOk();
  		assertNoOutput(err);
  		assertContains("Usage: java -jar jacococli.jar --help | <command>",
  				out);
  		assertContains("<command> : dump|instrument|merge|report", out);
  	}
  
  	@Test
  	public void should_print_command_usage_when_command_and_help_option_is_given()
  			throws Exception {
  		execute("dump", "--help");
  
  		assertOk();
  		assertNoOutput(err);
  		assertContains("Usage: java -jar jacococli.jar dump", out);
  		assertContains(
  				"Request execution data from a JaCoCo agent running in 'tcpserver' output mode.",
  				out);
  	}
  
  	@Test
  	public void should_not_print_any_output_when_quiet_option_is_given()
  			throws Exception {
  		execute("version", "--quiet");
  
  		assertOk();
  		assertNoOutput(out);
  		assertNoOutput(err);
  	}
  
  }
  