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.core.internal.analysis;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertNull;
  import static org.junit.Assert.assertSame;
  
  import org.junit.Before;
  import org.junit.Test;
  
  /**
   * Unit tests for {@link StringPool}.
   */
  public class StringPoolTest {
  
  	private StringPool pool;
  
  	@Before
  	public void setup() {
  		pool = new StringPool();
  	}
  
  	@Test
  	public void testGetStringNull() {
  		assertNull(pool.get((String) null));
  	}
  
  	@Test
  	public void testGetString() {
  		final String a = pool.get(new String("JaCoCo"));
  		final String b = pool.get(new String("JaCoCo"));
  
  		assertEquals("JaCoCo", a);
  		assertEquals("JaCoCo", b);
  		assertSame(a, b);
  	}
  
  	@Test
  	public void testGetArrayNull() {
  		assertNull(pool.get((String[]) null));
  	}
  
  	@Test
  	public void testGetEmptyArray() {
  		final String[] arr1 = pool.get(new String[0]);
  		final String[] arr2 = pool.get(new String[0]);
  
  		assertEquals(0, arr1.length);
  		assertSame(arr1, arr2);
  	}
  
  	@Test
  	public void testGetArray() {
  		final String[] arr1 = pool.get(new String[] { new String("JaCoCo") });
  		final String[] arr2 = pool.get(new String[] { new String("JaCoCo") });
  
  		assertEquals(1, arr1.length);
  		assertEquals("JaCoCo", arr1[0]);
  		assertSame(arr1[0], arr2[0]);
  	}
  
  }
  