Hibernate example source code file (PropertiesHelperTest.java)

This example Hibernate source code file (PropertiesHelperTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Hibernate tags/keywords

baseunittestcase, before, exception, i, i, integer, integer, numberformatexception, properties, properties, propertieshelpertest, string, test, test, util

The Hibernate PropertiesHelperTest.java source code

package org.hibernate.test.util;
import java.util.Properties;

import org.hibernate.internal.util.config.ConfigurationHelper;

import org.junit.Before;
import org.junit.Test;

import org.hibernate.testing.junit4.BaseUnitTestCase;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

/**
 * @author Steve Ebersole
 */
public class PropertiesHelperTest extends BaseUnitTestCase {
	private Properties props;

	@Before
	public void setUp() throws Exception {
		props = new Properties();

		props.setProperty( "my.nonexistent.prop", "${}" );

		props.setProperty( "my.string.prop", "${test.my.sys.string.prop}" );
		System.setProperty( "test.my.sys.string.prop", "string" );

		props.setProperty( "my.boolean.prop", "${test.my.sys.boolean.prop}" );
		System.setProperty( "test.my.sys.boolean.prop", "true" );

		props.setProperty( "my.int.prop", "${test.my.sys.int.prop}" );
		System.setProperty( "test.my.sys.int.prop", "1" );

		props.setProperty( "my.integer.prop", "${test.my.sys.integer.prop}" );
		System.setProperty( "test.my.sys.integer.prop", "1" );

		props.setProperty( "partial.prop1", "${somedir}/middle/dir/${somefile}" );
		props.setProperty( "partial.prop2", "basedir/${somedir}/myfile.txt" );
		System.setProperty( "somedir", "tmp" );
		System.setProperty( "somefile", "tmp.txt" );

		props.setProperty( "parse.error", "steve" );
	}

	@Test
	public void testPlaceholderReplacement() {
		ConfigurationHelper.resolvePlaceHolders( props );

		String str = ConfigurationHelper.getString( "my.nonexistent.prop", props, "did.not.exist" );
		assertEquals( "did.not.exist", str );
		str = ConfigurationHelper.getString( "my.nonexistent.prop", props, null );
		assertNull( str );
		str = ConfigurationHelper.getString( "my.string.prop", props, "na" );
		assertEquals( "replacement did not occur", "string", str );
		str = ConfigurationHelper.getString( "my.string.prop", props, "did.not.exist" );
		assertEquals( "replacement did not occur", "string", str );

		boolean bool = ConfigurationHelper.getBoolean( "my.nonexistent.prop", props );
		assertFalse( "non-exists as boolean", bool );
		bool = ConfigurationHelper.getBoolean( "my.nonexistent.prop", props, false );
		assertFalse( "non-exists as boolean", bool );
		bool = ConfigurationHelper.getBoolean( "my.nonexistent.prop", props, true );
		assertTrue( "non-exists as boolean", bool );
		bool = ConfigurationHelper.getBoolean( "my.boolean.prop", props );
		assertTrue( "boolean replacement did not occur", bool );
		bool = ConfigurationHelper.getBoolean( "my.boolean.prop", props, false );
		assertTrue( "boolean replacement did not occur", bool );

		int i = ConfigurationHelper.getInt( "my.nonexistent.prop", props, -1 );
		assertEquals( -1, i );
		i = ConfigurationHelper.getInt( "my.int.prop", props, 100 );
		assertEquals( 1, i );

		Integer I = ConfigurationHelper.getInteger( "my.nonexistent.prop", props );
		assertNull( I );
		I = ConfigurationHelper.getInteger( "my.integer.prop", props );
		assertEquals( I, new Integer( 1 ) );

		str = props.getProperty( "partial.prop1" );
		assertEquals( "partial replacement (ends)", "tmp/middle/dir/tmp.txt", str );

		str = props.getProperty( "partial.prop2" );
		assertEquals( "partial replacement (midst)", "basedir/tmp/myfile.txt", str );
	}

	@Test
	public void testParseExceptions() {
		boolean b = ConfigurationHelper.getBoolean( "parse.error", props );
		assertFalse( "parse exception case - boolean", b );

		try {
			ConfigurationHelper.getInt( "parse.error", props, 20 );
			fail( "parse exception case - int" );
		}
		catch( NumberFormatException expected ) {
		}

		try {
			ConfigurationHelper.getInteger( "parse.error", props );
			fail( "parse exception case - Integer" );
		}
		catch( NumberFormatException expected ) {
		}
	}
}