| /* |
| * 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.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertNull; |
| import static org.junit.Assert.assertSame; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| import java.util.ArrayList; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.NoSuchElementException; |
| import java.util.Set; |
| |
| import org.apache.commons.configuration2.builder.FileBasedBuilderParametersImpl; |
| import org.apache.commons.configuration2.builder.combined.CombinedConfigurationBuilder; |
| import org.apache.commons.configuration2.convert.DefaultListDelimiterHandler; |
| import org.apache.commons.configuration2.convert.ListDelimiterHandler; |
| import org.apache.commons.configuration2.interpol.ConfigurationInterpolator; |
| import org.apache.commons.configuration2.interpol.Lookup; |
| import org.easymock.EasyMock; |
| import org.junit.Test; |
| |
| /** |
| * Test case for the {@link SubsetConfiguration} class. |
| * |
| * @author Emmanuel Bourg |
| * @version $Id$ |
| */ |
| public class TestSubsetConfiguration |
| { |
| static final String TEST_DIR = ConfigurationAssert.TEST_DIR_NAME; |
| static final String TEST_FILE = "testDigesterConfiguration2.xml"; |
| |
| /** |
| * Tries to create an instance without a parent configuration. |
| */ |
| @Test(expected = IllegalArgumentException.class) |
| public void testInitNoParent() { |
| new SubsetConfiguration(null, ""); |
| } |
| |
| @Test |
| public void testGetProperty() |
| { |
| Configuration conf = new BaseConfiguration(); |
| conf.setProperty("test.key1", "value1"); |
| conf.setProperty("testing.key2", "value1"); |
| |
| Configuration subset = new SubsetConfiguration(conf, "test", "."); |
| assertFalse("the subset is empty", subset.isEmpty()); |
| assertTrue("'key1' not found in the subset", subset.containsKey("key1")); |
| assertFalse("'ng.key2' found in the subset", subset.containsKey("ng.key2")); |
| } |
| |
| @Test |
| public void testSetProperty() |
| { |
| Configuration conf = new BaseConfiguration(); |
| Configuration subset = new SubsetConfiguration(conf, "test", "."); |
| |
| // set a property in the subset and check the parent |
| subset.setProperty("key1", "value1"); |
| assertEquals("key1 in the subset configuration", "value1", subset.getProperty("key1")); |
| assertEquals("test.key1 in the parent configuration", "value1", conf.getProperty("test.key1")); |
| |
| // set a property in the parent and check in the subset |
| conf.setProperty("test.key2", "value2"); |
| assertEquals("test.key2 in the parent configuration", "value2", conf.getProperty("test.key2")); |
| assertEquals("key2 in the subset configuration", "value2", subset.getProperty("key2")); |
| } |
| |
| @Test |
| public void testGetParentKey() |
| { |
| Configuration conf = new BaseConfiguration(); |
| // subset with delimiter |
| SubsetConfiguration subset = new SubsetConfiguration(conf, "prefix", "."); |
| assertEquals("parent key for \"key\"", "prefix.key", subset.getParentKey("key")); |
| assertEquals("parent key for \"\"", "prefix", subset.getParentKey("")); |
| |
| // subset without delimiter |
| subset = new SubsetConfiguration(conf, "prefix", null); |
| assertEquals("parent key for \"key\"", "prefixkey", subset.getParentKey("key")); |
| assertEquals("parent key for \"\"", "prefix", subset.getParentKey("")); |
| } |
| |
| @Test |
| public void testGetChildKey() |
| { |
| Configuration conf = new BaseConfiguration(); |
| // subset with delimiter |
| SubsetConfiguration subset = new SubsetConfiguration(conf, "prefix", "."); |
| assertEquals("parent key for \"prefixkey\"", "key", subset.getChildKey("prefix.key")); |
| assertEquals("parent key for \"prefix\"", "", subset.getChildKey("prefix")); |
| |
| // subset without delimiter |
| subset = new SubsetConfiguration(conf, "prefix", null); |
| assertEquals("parent key for \"prefixkey\"", "key", subset.getChildKey("prefixkey")); |
| assertEquals("parent key for \"prefix\"", "", subset.getChildKey("prefix")); |
| } |
| |
| @Test |
| public void testGetKeys() |
| { |
| Configuration conf = new BaseConfiguration(); |
| conf.setProperty("test", "value0"); |
| conf.setProperty("test.key1", "value1"); |
| conf.setProperty("testing.key2", "value1"); |
| |
| Configuration subset = new SubsetConfiguration(conf, "test", "."); |
| |
| Iterator<String> it = subset.getKeys(); |
| assertEquals("1st key", "", it.next()); |
| assertEquals("2nd key", "key1", it.next()); |
| assertFalse("too many elements", it.hasNext()); |
| } |
| |
| @Test |
| public void testGetKeysWithPrefix() |
| { |
| Configuration conf = new BaseConfiguration(); |
| conf.setProperty("test.abc", "value0"); |
| conf.setProperty("test.abc.key1", "value1"); |
| conf.setProperty("test.abcdef.key2", "value1"); |
| |
| Configuration subset = new SubsetConfiguration(conf, "test", "."); |
| |
| Iterator<String> it = subset.getKeys("abc"); |
| assertEquals("1st key", "abc", it.next()); |
| assertEquals("2nd key", "abc.key1", it.next()); |
| assertFalse("too many elements", it.hasNext()); |
| } |
| |
| @Test |
| public void testGetList() |
| { |
| BaseConfiguration conf = new BaseConfiguration(); |
| conf.setListDelimiterHandler(new DefaultListDelimiterHandler(',')); |
| conf.setProperty("test.abc", "value0,value1"); |
| conf.addProperty("test.abc", "value3"); |
| |
| Configuration subset = new SubsetConfiguration(conf, "test", "."); |
| List<Object> list = subset.getList("abc", new ArrayList<Object>()); |
| assertEquals(3, list.size()); |
| } |
| |
| @Test |
| public void testGetParent() |
| { |
| Configuration conf = new BaseConfiguration(); |
| SubsetConfiguration subset = new SubsetConfiguration(conf, "prefix", "."); |
| |
| assertEquals("parent", conf, subset.getParent()); |
| } |
| |
| @Test |
| public void testGetPrefix() |
| { |
| Configuration conf = new BaseConfiguration(); |
| SubsetConfiguration subset = new SubsetConfiguration(conf, "prefix", "."); |
| |
| assertEquals("prefix", "prefix", subset.getPrefix()); |
| } |
| |
| @Test |
| public void testSetPrefix() |
| { |
| Configuration conf = new BaseConfiguration(); |
| SubsetConfiguration subset = new SubsetConfiguration(conf, null, "."); |
| subset.setPrefix("prefix"); |
| |
| assertEquals("prefix", "prefix", subset.getPrefix()); |
| } |
| |
| @Test |
| public void testThrowExceptionOnMissing() |
| { |
| BaseConfiguration config = new BaseConfiguration(); |
| config.setThrowExceptionOnMissing(true); |
| |
| SubsetConfiguration subset = new SubsetConfiguration(config, "prefix"); |
| |
| try |
| { |
| subset.getString("foo"); |
| fail("NoSuchElementException expected"); |
| } |
| catch (NoSuchElementException e) |
| { |
| // expected |
| } |
| |
| config.setThrowExceptionOnMissing(false); |
| assertNull(subset.getString("foo")); |
| |
| |
| subset.setThrowExceptionOnMissing(true); |
| try |
| { |
| config.getString("foo"); |
| fail("NoSuchElementException expected"); |
| } |
| catch (NoSuchElementException e) |
| { |
| // expected |
| } |
| } |
| |
| @Test |
| public void testNested() throws Exception |
| { |
| CombinedConfigurationBuilder builder = |
| new CombinedConfigurationBuilder(); |
| builder.configure(new FileBasedBuilderParametersImpl() |
| .setFile(ConfigurationAssert.getTestFile(TEST_FILE))); |
| Configuration config = builder.getConfiguration(); |
| Configuration subConf = config.subset("tables.table(0)"); |
| assertTrue(subConf.getKeys().hasNext()); |
| Configuration subSubConf = subConf.subset("fields.field(1)"); |
| Iterator<String> itKeys = subSubConf.getKeys(); |
| Set<String> keys = new HashSet<String>(); |
| keys.add("name"); |
| keys.add("type"); |
| while(itKeys.hasNext()) |
| { |
| String k = itKeys.next(); |
| assertTrue(keys.contains(k)); |
| keys.remove(k); |
| } |
| assertTrue(keys.isEmpty()); |
| } |
| |
| @Test |
| public void testClear() |
| { |
| Configuration config = new BaseConfiguration(); |
| config.setProperty("test.key1", "value1"); |
| config.setProperty("testing.key2", "value1"); |
| |
| Configuration subset = config.subset("test"); |
| subset.clear(); |
| |
| assertTrue("the subset is not empty", subset.isEmpty()); |
| assertFalse("the parent configuration is empty", config.isEmpty()); |
| } |
| |
| /** |
| * Tests whether a list delimiter handler is used correctly. |
| */ |
| @Test |
| public void testListDelimiterHandling() |
| { |
| BaseConfiguration config = new BaseConfiguration(); |
| Configuration subset = config.subset("prefix"); |
| config.setListDelimiterHandler(new DefaultListDelimiterHandler('/')); |
| subset.addProperty("list", "a/b/c"); |
| assertEquals("Wrong size of list", 3, config.getList("prefix.list") |
| .size()); |
| |
| ((AbstractConfiguration) subset) |
| .setListDelimiterHandler(new DefaultListDelimiterHandler(';')); |
| subset.addProperty("list2", "a;b;c"); |
| assertEquals("Wrong size of list2", 3, config.getList("prefix.list2") |
| .size()); |
| } |
| |
| /** |
| * Tests whether the list delimiter handler is also set for the parent |
| * configuration. |
| */ |
| @Test |
| public void testSetListDelimiterHandlerInParent() |
| { |
| BaseConfiguration config = new BaseConfiguration(); |
| AbstractConfiguration subset = |
| (AbstractConfiguration) config.subset("prefix"); |
| ListDelimiterHandler listHandler = new DefaultListDelimiterHandler(','); |
| subset.setListDelimiterHandler(listHandler); |
| assertSame("Handler not passed to parent", listHandler, |
| config.getListDelimiterHandler()); |
| } |
| |
| /** |
| * Tests whether the list delimiter handler from the parent configuration is |
| * used. |
| */ |
| @Test |
| public void testGetListDelimiterHandlerFromParent() |
| { |
| BaseConfiguration config = new BaseConfiguration(); |
| AbstractConfiguration subset = |
| (AbstractConfiguration) config.subset("prefix"); |
| ListDelimiterHandler listHandler = new DefaultListDelimiterHandler(','); |
| config.setListDelimiterHandler(listHandler); |
| assertSame("Not list handler from parent", listHandler, |
| subset.getListDelimiterHandler()); |
| } |
| |
| /** |
| * Tests the case that the parent configuration is not derived from |
| * AbstractConfiguration and thus does not support a list delimiter handler. |
| */ |
| @Test |
| public void testSetListDelimiterHandlerParentNotSupported() |
| { |
| Configuration config = EasyMock.createNiceMock(Configuration.class); |
| EasyMock.replay(config); |
| SubsetConfiguration subset = new SubsetConfiguration(config, "prefix"); |
| ListDelimiterHandler listHandler = new DefaultListDelimiterHandler(','); |
| subset.setListDelimiterHandler(listHandler); |
| assertSame("List delimiter handler not set", listHandler, |
| subset.getListDelimiterHandler()); |
| } |
| |
| /** |
| * Tests manipulating the interpolator. |
| */ |
| @Test |
| public void testInterpolator() |
| { |
| BaseConfiguration config = new BaseConfiguration(); |
| AbstractConfiguration subset = (AbstractConfiguration) config |
| .subset("prefix"); |
| InterpolationTestHelper.testGetInterpolator(subset); |
| } |
| |
| @Test |
| public void testLocalLookupsInInterpolatorAreInherited() { |
| BaseConfiguration config = new BaseConfiguration(); |
| ConfigurationInterpolator interpolator = config.getInterpolator(); |
| interpolator.registerLookup("brackets", new Lookup(){ |
| |
| @Override |
| public String lookup(String key) { |
| return "(" + key +")"; |
| } |
| |
| }); |
| config.setProperty("prefix.var", "${brackets:x}"); |
| AbstractConfiguration subset = (AbstractConfiguration) config |
| .subset("prefix"); |
| assertEquals("Local lookup was not inherited", "(x)", subset |
| .getString("var", "")); |
| } |
| |
| @Test |
| public void testInterpolationForKeysOfTheParent() { |
| BaseConfiguration config = new BaseConfiguration(); |
| config.setProperty("test", "junit"); |
| config.setProperty("prefix.key", "${test}"); |
| AbstractConfiguration subset = (AbstractConfiguration) config |
| .subset("prefix"); |
| assertEquals("Interpolation does not resolve parent keys", "junit", |
| subset.getString("key", "")); |
| } |
| } |