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+/*%0A * Copyright 2017 Viktor Csomor%0A *%0A * Licensed under the Apache License, Version 2.0 (the %22License%22);%0A * you may not use this file except in compliance with the License.%0A * You may obtain a copy of the License at%0A *%0A *     http://www.apache.org/licenses/LICENSE-2.0%0A *%0A * Unless required by applicable law or agreed to in writing, software%0A * distributed under the License is distributed on an %22AS IS%22 BASIS,%0A * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.%0A * See the License for the specific language governing permissions and%0A * limitations under the License.%0A */%0Apackage net.viktorc.pp4j.impl;%0A%0Aimport org.junit.Assert;%0Aimport org.junit.Test;%0A%0A/**%0A * A unit test class for %7B@link SimpleCommand%7D.%0A *%0A * @author Viktor Csomor%0A */%0Apublic class SimpleCommandTest extends TestCase %7B%0A%0A  @Test%0A  public void testGeneratesOutputFalseWhenNoCompletionPredicatesDefined() %7B%0A    SimpleCommand command = new SimpleCommand(null);%0A    Assert.assertFalse(command.generatesOutput());%0A  %7D%0A%0A  @Test%0A  public void testGeneratesOutputTrueWhenCompletionPredicatesDefined() %7B%0A    SimpleCommand command = new SimpleCommand(null, (c, o) -%3E true, (c, o) -%3E false);%0A    Assert.assertTrue(command.generatesOutput());%0A  %7D%0A%0A  @Test%0A  public void testThrowsExceptionWhenPredicateNull() %7B%0A    exceptionRule.expect(IllegalArgumentException.class);%0A    new SimpleCommand(null, (c, o) -%3E true, null);%0A  %7D%0A%0A%7D%0A

Add basic simple command unit test