TestFunctionImpl.java

/*
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 * See the COPYRIGHT.txt file distributed with this work for information
 * regarding copyright ownership.  Some portions may be licensed
 * to Red Hat, Inc. under one or more contributor license agreements.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
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package org.teiid.dqp.internal.datamgr;

import java.util.List;

import junit.framework.TestCase;

import org.teiid.language.Expression;
import org.teiid.language.Function;
import org.teiid.query.sql.symbol.Constant;


public class TestFunctionImpl extends TestCase {

    /**
     * Constructor for TestFunctionImpl.
     * @param name
     */
    public TestFunctionImpl(String name) {
        super(name);
    }

    public static org.teiid.query.sql.symbol.Function helpExample(String name) {
        Constant c1 = new Constant(new Integer(100));
        Constant c2 = new Constant(new Integer(200));
        org.teiid.query.sql.symbol.Function f = new org.teiid.query.sql.symbol.Function(name, new org.teiid.query.sql.symbol.Expression[] {c1, c2});
        f.setType(Integer.class);
        return f;
    }
    
    public static Function example(String name) throws Exception {
        return (Function) TstLanguageBridgeFactory.factory.translate(helpExample(name));
    }

    public void testGetName() throws Exception {
        assertEquals("testName", example("testName").getName()); //$NON-NLS-1$ //$NON-NLS-2$
    }

    public void testGetParameters() throws Exception {
        List<Expression> params = example("testFunction").getParameters(); //$NON-NLS-1$
        assertNotNull(params);
        assertEquals(2, params.size());
        for (int i = 0; i < params.size(); i++) {
            assertNotNull(params.get(i));
        }
    }

    public void testGetType() throws Exception {
        assertEquals(Integer.class, example("test").getType()); //$NON-NLS-1$
    }

}