/*
* Copyright 2002-2006 the original author or authors.
*
* 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 org.springframework.beans.factory.parsing;
import junit.framework.TestCase;
import org.springframework.beans.factory.parsing.ParseState;
/**
* @author Rob Harrop
* @since 2.0
*/
public class ParseStateTests extends TestCase {
public void testSimple() throws Exception {
MockEntry entry = new MockEntry();
ParseState parseState = new ParseState();
parseState.push(entry);
assertEquals("Incorrect peek value.", entry, parseState.peek());
parseState.pop();
assertNull("Should get null on peek()", parseState.peek());
}
public void testNesting() throws Exception {
MockEntry one = new MockEntry();
MockEntry two = new MockEntry();
MockEntry three = new MockEntry();
ParseState parseState = new ParseState();
parseState.push(one);
assertEquals(one, parseState.peek());
parseState.push(two);
assertEquals(two, parseState.peek());
parseState.push(three);
assertEquals(three, parseState.peek());
parseState.pop();
assertEquals(two, parseState.peek());
parseState.pop();
assertEquals(one, parseState.peek());
}
public void testSnapshot() throws Exception {
MockEntry entry = new MockEntry();
ParseState original = new ParseState();
original.push(entry);
ParseState snapshot = original.snapshot();
original.push(new MockEntry());
assertEquals("Snapshot should not have been modified.", entry, snapshot.peek());
}
private static class MockEntry implements ParseState.Entry {
}
}