src/test/java/org/apache/commons/configuration2/TestBaseNullConfiguration.java - commons-configuration - Git at Google

 /*
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.
  * The ASF licenses this file to You under the Apache License, Version 2.0
  * (the "License"); you may not use this file except in compliance with
  * the License.  You may obtain a copy of the License at
  *
  *     http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 package org.apache.commons.configuration2;

 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertNull;
 import static org.junit.jupiter.api.Assertions.assertThrows;

 import java.math.BigDecimal;
 import java.math.BigInteger;
 import java.util.Arrays;
 import java.util.Iterator;
 import java.util.List;
 import java.util.NoSuchElementException;
 import java.util.Properties;

 import org.apache.commons.configuration2.convert.DefaultListDelimiterHandler;
 import org.apache.commons.configuration2.ex.ConversionException;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;

 /**
  * Tests some basic functions of the BaseConfiguration class. Missing keys might return null.
  */
 public class TestBaseNullConfiguration {
     protected BaseConfiguration config;

     @BeforeEach
     public void setUp() throws Exception {
         config = new BaseConfiguration();
         config.setListDelimiterHandler(new DefaultListDelimiterHandler(','));
         config.setThrowExceptionOnMissing(false);
     }

     @Test
     public void testCommaSeparatedString() {
         final String prop = "hey, that's a test";
         config.setProperty("prop.string", prop);
         final List<Object> list = config.getList("prop.string");
         assertEquals(Arrays.asList("hey", "that's a test"), list);
     }

     @Test
     public void testCommaSeparatedStringEscaped() {
         final String prop2 = "hey\\, that's a test";
         config.clearProperty("prop.string");
         config.setProperty("prop.string", prop2);
         assertEquals("hey, that's a test", config.getString("prop.string"));
     }

     @Test
     public void testGetBigDecimal() {
         config.setProperty("numberBigD", "123.456");
         final BigDecimal number = new BigDecimal("123.456");
         final BigDecimal defaultValue = new BigDecimal("654.321");

         assertEquals(number, config.getBigDecimal("numberBigD"));
         assertEquals(number, config.getBigDecimal("numberBigD", defaultValue));
         assertEquals(defaultValue, config.getBigDecimal("numberNotInConfig", defaultValue));
     }

     @Test
     public void testGetBigDecimalIncompatibleType() {
         config.setProperty("test.empty", "");
         assertThrows(ConversionException.class, () -> config.getBigDecimal("test.empty"));
     }

     @Test
     public void testGetBigDecimalUnknown() {
         assertNull(config.getBigDecimal("numberNotInConfig"));
     }

     @Test
     public void testGetBigInteger() {
         config.setProperty("numberBigI", "1234567890");
         final BigInteger number = new BigInteger("1234567890");
         final BigInteger defaultValue = new BigInteger("654321");

         assertEquals(number, config.getBigInteger("numberBigI"));
         assertEquals(number, config.getBigInteger("numberBigI", defaultValue));
         assertEquals(defaultValue, config.getBigInteger("numberNotInConfig", defaultValue));
     }

     @Test
     public void testGetBigIntegerIncompatibleType() {
         config.setProperty("test.empty", "");
         assertThrows(ConversionException.class, () -> config.getBigInteger("test.empty"));
     }

     @Test
     public void testGetBigIntegerUnknown() {
         assertNull(config.getBigInteger("numberNotInConfig"));
     }

     @Test
     public void testGetBoolean() {
         config.setProperty("boolA", Boolean.TRUE);
         final boolean boolT = true, boolF = false;
         assertEquals(boolT, config.getBoolean("boolA"));
         assertEquals(boolT, config.getBoolean("boolA", boolF));
         assertEquals(boolF, config.getBoolean("boolNotInConfig", boolF));
         assertEquals(Boolean.valueOf(boolT), config.getBoolean("boolA", Boolean.valueOf(boolF)));
     }

     @Test
     public void testGetBooleanIncompatibleType() {
         config.setProperty("test.empty", "");
         assertThrows(ConversionException.class, () -> config.getBoolean("test.empty"));
     }

     @Test
     public void testGetBooleanUnknown() {
         assertThrows(NoSuchElementException.class, () -> config.getBoolean("numberNotInConfig"));
     }

     @Test
     public void testGetByte() {
         config.setProperty("number", "1");
         final byte oneB = 1;
         final byte twoB = 2;
         assertEquals(oneB, config.getByte("number"));
         assertEquals(oneB, config.getByte("number", twoB));
         assertEquals(twoB, config.getByte("numberNotInConfig", twoB));
         assertEquals(Byte.valueOf(oneB), config.getByte("number", Byte.valueOf("2")));
     }

     @Test
     public void testGetByteIncompatibleType() {
         config.setProperty("test.empty", "");
         assertThrows(ConversionException.class, () -> config.getByte("test.empty"));
     }

     @Test
     public void testGetByteUnknown() {
         assertThrows(NoSuchElementException.class, () -> config.getByte("numberNotInConfig"));
     }

     @Test
     public void testGetDouble() {
         config.setProperty("numberD", "1.0");
         final double oneD = 1;
         final double twoD = 2;
         assertEquals(oneD, config.getDouble("numberD"), 0);
         assertEquals(oneD, config.getDouble("numberD", twoD), 0);
         assertEquals(twoD, config.getDouble("numberNotInConfig", twoD), 0);
         assertEquals(Double.valueOf(oneD), config.getDouble("numberD", Double.valueOf("2")));
     }

     @Test
     public void testGetDoubleIncompatibleType() {
         config.setProperty("test.empty", "");
         assertThrows(ConversionException.class, () -> config.getDouble("test.empty"));
     }

     @Test
     public void testGetDoubleUnknown() {
         assertThrows(NoSuchElementException.class, () -> config.getDouble("numberNotInConfig"));
     }

     @Test
     public void testGetFloat() {
         config.setProperty("numberF", "1.0");
         final float oneF = 1;
         final float twoF = 2;
         assertEquals(oneF, config.getFloat("numberF"), 0);
         assertEquals(oneF, config.getFloat("numberF", twoF), 0);
         assertEquals(twoF, config.getFloat("numberNotInConfig", twoF), 0);
         assertEquals(Float.valueOf(oneF), config.getFloat("numberF", Float.valueOf("2")));
     }

     @Test
     public void testGetFloatIncompatibleType() {
         config.setProperty("test.empty", "");
         assertThrows(ConversionException.class, () -> config.getFloat("test.empty"));
     }

     @Test
     public void testGetFloatUnknown() {
         assertThrows(NoSuchElementException.class, () -> config.getFloat("numberNotInConfig"));
     }

     @Test
     public void testGetList() {
         config.addProperty("number", "1");
         config.addProperty("number", "2");
         final List<Object> list = config.getList("number");
         assertEquals(Arrays.asList("1", "2"), list);
     }

     @Test
     public void testGetListAsScalar() {
         config.addProperty("number", "1");
         config.addProperty("number", "2");
         assertEquals("1", config.getString("number"));
     }

     @Test
     public void testGetLong() {
         config.setProperty("numberL", "1");
         final long oneL = 1;
         final long twoL = 2;
         assertEquals(oneL, config.getLong("numberL"));
         assertEquals(oneL, config.getLong("numberL", twoL));
         assertEquals(twoL, config.getLong("numberNotInConfig", twoL));
         assertEquals(Long.valueOf(oneL), config.getLong("numberL", Long.valueOf("2")));
     }

     @Test
     public void testGetLongIncompatibleTypes() {
         config.setProperty("test.empty", "");
         assertThrows(ConversionException.class, () -> config.getLong("test.empty"));
     }

     @Test
     public void testGetLongUnknown() {
         assertThrows(NoSuchElementException.class, () -> config.getLong("numberNotInConfig"));
     }

     @Test
     public void testGetProperty() {
         /* should be empty and return null */
         assertNull(config.getProperty("foo"));

         /* add a real value, and get it two different ways */
         config.setProperty("number", "1");
         assertEquals("1", config.getProperty("number"));
         assertEquals("1", config.getString("number"));
     }

     @Test
     public void testGetShort() {
         config.setProperty("numberS", "1");
         final short oneS = 1;
         final short twoS = 2;
         assertEquals(oneS, config.getShort("numberS"));
         assertEquals(oneS, config.getShort("numberS", twoS));
         assertEquals(twoS, config.getShort("numberNotInConfig", twoS));
         assertEquals(Short.valueOf(oneS), config.getShort("numberS", Short.valueOf("2")));
     }

     @Test
     public void testGetShortIncompatibleType() {
         config.setProperty("test.empty", "");
         assertThrows(ConversionException.class, () -> config.getShort("test.empty"));
     }

     @Test
     public void testGetShortUnknown() {
         assertThrows(NoSuchElementException.class, () -> config.getShort("numberNotInConfig"));
     }

     @Test
     public void testGetString() {
         config.setProperty("testString", "The quick brown fox");
         final String string = "The quick brown fox";
         final String defaultValue = "jumps over the lazy dog";

         assertEquals(string, config.getString("testString"));
         assertEquals(string, config.getString("testString", defaultValue));
         assertEquals(defaultValue, config.getString("stringNotInConfig", defaultValue));
     }

     @Test
     public void testGetStringUnknown() {
         assertNull(config.getString("stringNotInConfig"));
     }

     @Test
     public void testInterpolation() throws Exception {
         config.setProperty("applicationRoot", "/home/applicationRoot");
         config.setProperty("db", "${applicationRoot}/db/hypersonic");
         final String unInterpolatedValue = "${applicationRoot2}/db/hypersonic";
         config.setProperty("dbFailedInterpolate", unInterpolatedValue);
         final String dbProp = "/home/applicationRoot/db/hypersonic";

         // construct a new config, using config as the defaults config for it.
         final BaseConfiguration superProp = config;

         assertEquals(dbProp, superProp.getString("db"));
         assertEquals(unInterpolatedValue, superProp.getString("dbFailedInterpolate"));

         superProp.setProperty("arrayInt", "${applicationRoot}/1");
         final String[] arrayInt = superProp.getStringArray("arrayInt");
         assertEquals("/home/applicationRoot/1", arrayInt[0]);
     }

     @Test
     public void testInterpolationLoop() throws Exception {
         config.setProperty("test.a", "${test.b}");
         config.setProperty("test.b", "${test.a}");
         assertThrows(IllegalStateException.class, () -> config.getString("test.a"));
     }

     @Test
     public void testMultipleInterpolation() throws Exception {
         config.setProperty("test.base-level", "/base-level");
         config.setProperty("test.first-level", "${test.base-level}/first-level");
         config.setProperty("test.second-level", "${test.first-level}/second-level");
         config.setProperty("test.third-level", "${test.second-level}/third-level");

         final String expectedValue = "/base-level/first-level/second-level/third-level";

         assertEquals(expectedValue, config.getString("test.third-level"));
     }

     @Test
     public void testPropertyAccess() {
         config.clearProperty("prop.properties");
         config.setProperty("prop.properties", "");
         assertEquals(new Properties(), config.getProperties("prop.properties"));
         config.clearProperty("prop.properties");
         config.setProperty("prop.properties", "foo=bar, baz=moo, seal=clubber");

         final Properties p = new Properties();
         p.setProperty("foo", "bar");
         p.setProperty("baz", "moo");
         p.setProperty("seal", "clubber");
         assertEquals(p, config.getProperties("prop.properties"));
     }

     @Test
     public void testSubset() {
         /*
          * test subset : assure we don't reprocess the data elements when generating the subset
          */

         final String prop = "hey, that's a test";
         final String prop2 = "hey\\, that's a test";
         config.setProperty("prop.string", prop2);
         config.setProperty("property.string", "hello");

         Configuration subEprop = config.subset("prop");

         assertEquals(prop, subEprop.getString("string"));
         assertEquals(1, subEprop.getList("string").size());

         Iterator<String> it = subEprop.getKeys();
         it.next();
         assertFalse(it.hasNext());

         subEprop = config.subset("prop.");
         it = subEprop.getKeys();
         assertFalse(it.hasNext());
     }

     @Test
     public void testThrowExceptionOnMissing() {
         assertFalse(config.isThrowExceptionOnMissing());
     }
 }
	/*
	* Licensed to the Apache Software Foundation (ASF) under one or more
	* contributor license agreements. See the NOTICE file distributed with
	* this work for additional information regarding copyright ownership.
	* The ASF licenses this file to You under the Apache License, Version 2.0
	* (the "License"); you may not use this file except in compliance with
	* the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	package org.apache.commons.configuration2;

	import static org.junit.jupiter.api.Assertions.assertEquals;
	import static org.junit.jupiter.api.Assertions.assertFalse;
	import static org.junit.jupiter.api.Assertions.assertNull;
	import static org.junit.jupiter.api.Assertions.assertThrows;

	import java.math.BigDecimal;
	import java.math.BigInteger;
	import java.util.Arrays;
	import java.util.Iterator;
	import java.util.List;
	import java.util.NoSuchElementException;
	import java.util.Properties;

	import org.apache.commons.configuration2.convert.DefaultListDelimiterHandler;
	import org.apache.commons.configuration2.ex.ConversionException;
	import org.junit.jupiter.api.BeforeEach;
	import org.junit.jupiter.api.Test;

	/**
	* Tests some basic functions of the BaseConfiguration class. Missing keys might return null.
	*/
	public class TestBaseNullConfiguration {
	protected BaseConfiguration config;

	@BeforeEach
	public void setUp() throws Exception {
	config = new BaseConfiguration();
	config.setListDelimiterHandler(new DefaultListDelimiterHandler(','));
	config.setThrowExceptionOnMissing(false);
	}

	@Test
	public void testCommaSeparatedString() {
	final String prop = "hey, that's a test";
	config.setProperty("prop.string", prop);
	final List<Object> list = config.getList("prop.string");
	assertEquals(Arrays.asList("hey", "that's a test"), list);
	}

	@Test
	public void testCommaSeparatedStringEscaped() {
	final String prop2 = "hey\\, that's a test";
	config.clearProperty("prop.string");
	config.setProperty("prop.string", prop2);
	assertEquals("hey, that's a test", config.getString("prop.string"));
	}

	@Test
	public void testGetBigDecimal() {
	config.setProperty("numberBigD", "123.456");
	final BigDecimal number = new BigDecimal("123.456");
	final BigDecimal defaultValue = new BigDecimal("654.321");

	assertEquals(number, config.getBigDecimal("numberBigD"));
	assertEquals(number, config.getBigDecimal("numberBigD", defaultValue));
	assertEquals(defaultValue, config.getBigDecimal("numberNotInConfig", defaultValue));
	}

	@Test
	public void testGetBigDecimalIncompatibleType() {
	config.setProperty("test.empty", "");
	assertThrows(ConversionException.class, () -> config.getBigDecimal("test.empty"));
	}

	@Test
	public void testGetBigDecimalUnknown() {
	assertNull(config.getBigDecimal("numberNotInConfig"));
	}

	@Test
	public void testGetBigInteger() {
	config.setProperty("numberBigI", "1234567890");
	final BigInteger number = new BigInteger("1234567890");
	final BigInteger defaultValue = new BigInteger("654321");

	assertEquals(number, config.getBigInteger("numberBigI"));
	assertEquals(number, config.getBigInteger("numberBigI", defaultValue));
	assertEquals(defaultValue, config.getBigInteger("numberNotInConfig", defaultValue));
	}

	@Test
	public void testGetBigIntegerIncompatibleType() {
	config.setProperty("test.empty", "");
	assertThrows(ConversionException.class, () -> config.getBigInteger("test.empty"));
	}

	@Test
	public void testGetBigIntegerUnknown() {
	assertNull(config.getBigInteger("numberNotInConfig"));
	}

	@Test
	public void testGetBoolean() {
	config.setProperty("boolA", Boolean.TRUE);
	final boolean boolT = true, boolF = false;
	assertEquals(boolT, config.getBoolean("boolA"));
	assertEquals(boolT, config.getBoolean("boolA", boolF));
	assertEquals(boolF, config.getBoolean("boolNotInConfig", boolF));
	assertEquals(Boolean.valueOf(boolT), config.getBoolean("boolA", Boolean.valueOf(boolF)));
	}

	@Test
	public void testGetBooleanIncompatibleType() {
	config.setProperty("test.empty", "");
	assertThrows(ConversionException.class, () -> config.getBoolean("test.empty"));
	}

	@Test
	public void testGetBooleanUnknown() {
	assertThrows(NoSuchElementException.class, () -> config.getBoolean("numberNotInConfig"));
	}

	@Test
	public void testGetByte() {
	config.setProperty("number", "1");
	final byte oneB = 1;
	final byte twoB = 2;
	assertEquals(oneB, config.getByte("number"));
	assertEquals(oneB, config.getByte("number", twoB));
	assertEquals(twoB, config.getByte("numberNotInConfig", twoB));
	assertEquals(Byte.valueOf(oneB), config.getByte("number", Byte.valueOf("2")));
	}

	@Test
	public void testGetByteIncompatibleType() {
	config.setProperty("test.empty", "");
	assertThrows(ConversionException.class, () -> config.getByte("test.empty"));
	}

	@Test
	public void testGetByteUnknown() {
	assertThrows(NoSuchElementException.class, () -> config.getByte("numberNotInConfig"));
	}

	@Test
	public void testGetDouble() {
	config.setProperty("numberD", "1.0");
	final double oneD = 1;
	final double twoD = 2;
	assertEquals(oneD, config.getDouble("numberD"), 0);
	assertEquals(oneD, config.getDouble("numberD", twoD), 0);
	assertEquals(twoD, config.getDouble("numberNotInConfig", twoD), 0);
	assertEquals(Double.valueOf(oneD), config.getDouble("numberD", Double.valueOf("2")));
	}

	@Test
	public void testGetDoubleIncompatibleType() {
	config.setProperty("test.empty", "");
	assertThrows(ConversionException.class, () -> config.getDouble("test.empty"));
	}

	@Test
	public void testGetDoubleUnknown() {
	assertThrows(NoSuchElementException.class, () -> config.getDouble("numberNotInConfig"));
	}

	@Test
	public void testGetFloat() {
	config.setProperty("numberF", "1.0");
	final float oneF = 1;
	final float twoF = 2;
	assertEquals(oneF, config.getFloat("numberF"), 0);
	assertEquals(oneF, config.getFloat("numberF", twoF), 0);
	assertEquals(twoF, config.getFloat("numberNotInConfig", twoF), 0);
	assertEquals(Float.valueOf(oneF), config.getFloat("numberF", Float.valueOf("2")));
	}

	@Test
	public void testGetFloatIncompatibleType() {
	config.setProperty("test.empty", "");
	assertThrows(ConversionException.class, () -> config.getFloat("test.empty"));
	}

	@Test
	public void testGetFloatUnknown() {
	assertThrows(NoSuchElementException.class, () -> config.getFloat("numberNotInConfig"));
	}

	@Test
	public void testGetList() {
	config.addProperty("number", "1");
	config.addProperty("number", "2");
	final List<Object> list = config.getList("number");
	assertEquals(Arrays.asList("1", "2"), list);
	}

	@Test
	public void testGetListAsScalar() {
	config.addProperty("number", "1");
	config.addProperty("number", "2");
	assertEquals("1", config.getString("number"));
	}

	@Test
	public void testGetLong() {
	config.setProperty("numberL", "1");
	final long oneL = 1;
	final long twoL = 2;
	assertEquals(oneL, config.getLong("numberL"));
	assertEquals(oneL, config.getLong("numberL", twoL));
	assertEquals(twoL, config.getLong("numberNotInConfig", twoL));
	assertEquals(Long.valueOf(oneL), config.getLong("numberL", Long.valueOf("2")));
	}

	@Test
	public void testGetLongIncompatibleTypes() {
	config.setProperty("test.empty", "");
	assertThrows(ConversionException.class, () -> config.getLong("test.empty"));
	}

	@Test
	public void testGetLongUnknown() {
	assertThrows(NoSuchElementException.class, () -> config.getLong("numberNotInConfig"));
	}

	@Test
	public void testGetProperty() {
	/* should be empty and return null */
	assertNull(config.getProperty("foo"));

	/* add a real value, and get it two different ways */
	config.setProperty("number", "1");
	assertEquals("1", config.getProperty("number"));
	assertEquals("1", config.getString("number"));
	}

	@Test
	public void testGetShort() {
	config.setProperty("numberS", "1");
	final short oneS = 1;
	final short twoS = 2;
	assertEquals(oneS, config.getShort("numberS"));
	assertEquals(oneS, config.getShort("numberS", twoS));
	assertEquals(twoS, config.getShort("numberNotInConfig", twoS));
	assertEquals(Short.valueOf(oneS), config.getShort("numberS", Short.valueOf("2")));
	}

	@Test
	public void testGetShortIncompatibleType() {
	config.setProperty("test.empty", "");
	assertThrows(ConversionException.class, () -> config.getShort("test.empty"));
	}

	@Test
	public void testGetShortUnknown() {
	assertThrows(NoSuchElementException.class, () -> config.getShort("numberNotInConfig"));
	}

	@Test
	public void testGetString() {
	config.setProperty("testString", "The quick brown fox");
	final String string = "The quick brown fox";
	final String defaultValue = "jumps over the lazy dog";

	assertEquals(string, config.getString("testString"));
	assertEquals(string, config.getString("testString", defaultValue));
	assertEquals(defaultValue, config.getString("stringNotInConfig", defaultValue));
	}

	@Test
	public void testGetStringUnknown() {
	assertNull(config.getString("stringNotInConfig"));
	}

	@Test
	public void testInterpolation() throws Exception {
	config.setProperty("applicationRoot", "/home/applicationRoot");
	config.setProperty("db", "${applicationRoot}/db/hypersonic");
	final String unInterpolatedValue = "${applicationRoot2}/db/hypersonic";
	config.setProperty("dbFailedInterpolate", unInterpolatedValue);
	final String dbProp = "/home/applicationRoot/db/hypersonic";

	// construct a new config, using config as the defaults config for it.
	final BaseConfiguration superProp = config;

	assertEquals(dbProp, superProp.getString("db"));
	assertEquals(unInterpolatedValue, superProp.getString("dbFailedInterpolate"));

	superProp.setProperty("arrayInt", "${applicationRoot}/1");
	final String[] arrayInt = superProp.getStringArray("arrayInt");
	assertEquals("/home/applicationRoot/1", arrayInt[0]);
	}

	@Test
	public void testInterpolationLoop() throws Exception {
	config.setProperty("test.a", "${test.b}");
	config.setProperty("test.b", "${test.a}");
	assertThrows(IllegalStateException.class, () -> config.getString("test.a"));
	}

	@Test
	public void testMultipleInterpolation() throws Exception {
	config.setProperty("test.base-level", "/base-level");
	config.setProperty("test.first-level", "${test.base-level}/first-level");
	config.setProperty("test.second-level", "${test.first-level}/second-level");
	config.setProperty("test.third-level", "${test.second-level}/third-level");

	final String expectedValue = "/base-level/first-level/second-level/third-level";

	assertEquals(expectedValue, config.getString("test.third-level"));
	}

	@Test
	public void testPropertyAccess() {
	config.clearProperty("prop.properties");
	config.setProperty("prop.properties", "");
	assertEquals(new Properties(), config.getProperties("prop.properties"));
	config.clearProperty("prop.properties");
	config.setProperty("prop.properties", "foo=bar, baz=moo, seal=clubber");

	final Properties p = new Properties();
	p.setProperty("foo", "bar");
	p.setProperty("baz", "moo");
	p.setProperty("seal", "clubber");
	assertEquals(p, config.getProperties("prop.properties"));
	}

	@Test
	public void testSubset() {
	/*
	* test subset : assure we don't reprocess the data elements when generating the subset
	*/

	final String prop = "hey, that's a test";
	final String prop2 = "hey\\, that's a test";
	config.setProperty("prop.string", prop2);
	config.setProperty("property.string", "hello");

	Configuration subEprop = config.subset("prop");

	assertEquals(prop, subEprop.getString("string"));
	assertEquals(1, subEprop.getList("string").size());

	Iterator<String> it = subEprop.getKeys();
	it.next();
	assertFalse(it.hasNext());

	subEprop = config.subset("prop.");
	it = subEprop.getKeys();
	assertFalse(it.hasNext());
	}

	@Test
	public void testThrowExceptionOnMissing() {
	assertFalse(config.isThrowExceptionOnMissing());
	}
	}