/*
 * 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.ode.bpel.elang.xquery10.compiler;

import java.util.Arrays;
import java.util.Collection;
import java.util.LinkedHashSet;

import junit.framework.TestCase;

public class XQuery10ExpressionCompilerImplTest extends TestCase {
    
    public void testGetVariableNames() throws Exception {
        String xq = "let $status := string($SomeVariable/ns:somePath)\n" + 
        		"                     return\n" + 
        		"                     if ($status = 'ABC' ) then\n" + 
        		"                        '123'\n" + 
        		"                     else $status (: workaround :)";

        assertMatches(xq);
    }

    public void testGetVariableNames_endsWithVariableName() throws Exception {
        String xq = "let $status := string($SomeVariable/ns:somePath)\n" + 
                "                     return\n" + 
                "                     if ($status = 'ABC' ) then\n" + 
                "                        '123'\n" + 
                "                     else $status";

        assertMatches(xq);
    }

    private void assertMatches(String xq) {
        Collection<String> varNames = XQuery10ExpressionCompilerImpl.getVariableNames(xq);
        Collection<String> expected = new LinkedHashSet(Arrays.asList("status", "SomeVariable"));
        
        assertEquals(2, varNames.size());
        assertEquals(expected, varNames);
    }

}
