/*******************************************************************************
* Copyright 2015 Analog Devices, Inc.
*
* Licensed 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 com.analog.lyric.options.tests;
import static com.analog.lyric.util.test.ExceptionTester.*;
import static org.junit.Assert.*;
import org.junit.Test;
import com.analog.lyric.options.IOptionHolder;
import com.analog.lyric.options.OptionLookupIterator;
import com.analog.lyric.options.StringOptionKey;
/**
*
* @since 0.08
* @author Christopher Barber
*/
public class TestOptionLookupIterator
{
public static final StringOptionKey key = new StringOptionKey(TestOptionLookupIterator.class, "key", "default");
@Test
public void test()
{
IOptionHolder root = new ExampleOptionHolder();
IOptionHolder child = new ExampleOptionHolder(root);
assertSame(root, child.getOptionParent());
OptionLookupIterator<String> iter = OptionLookupIterator.create(child, key);
assertSame(key, iter.key());
OptionLookupIterator<String> iter2 = OptionLookupIterator.create(child, key);
assertNotSame(iter, iter2);
assertSame(key, iter2.key());
iter2.release();
assertTrue(iter.hasNext());
assertNull(iter.lastSource());
assertEquals("default", iter.next());
assertNull(iter.lastSource());
assertFalse(iter.hasNext());
iter.release();
expectThrow(NullPointerException.class, iter, "key");
root.setOption(key, "root");
child.setOption(key, "child");
iter2 = OptionLookupIterator.create(child, key);
assertSame(iter, iter2);
assertNull(iter2.lastSource());
assertSame(key, iter2.key());
assertTrue(iter2.hasNext());
assertEquals("child", iter2.next());
assertSame(child, iter2.lastSource());
assertTrue(iter2.hasNext());
assertEquals("root", iter2.next());
assertSame(root, iter2.lastSource());
assertTrue(iter2.hasNext());
assertEquals("default", iter2.next());
assertNull(iter2.lastSource());
assertNull(iter2.next());
}
}