TestAliasSymbol.java

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package org.teiid.query.sql.lang;

import static org.junit.Assert.*;

import org.junit.Test;
import org.teiid.query.sql.symbol.AliasSymbol;
import org.teiid.query.sql.symbol.Constant;
import org.teiid.query.sql.symbol.ExpressionSymbol;


public class TestAliasSymbol {

    @Test public void testAliasEquals() {
        AliasSymbol a1 = new AliasSymbol("X", new ExpressionSymbol("x", new Constant(1))); //$NON-NLS-1$ //$NON-NLS-2$
        AliasSymbol a2 = new AliasSymbol("X", new ExpressionSymbol("x", new Constant(2))); //$NON-NLS-1$ //$NON-NLS-2$
        AliasSymbol a3 = new AliasSymbol("x", new ExpressionSymbol("x", new Constant(1))); //$NON-NLS-1$ //$NON-NLS-2$
        
        assertFalse(a1.equals(a3)); //just a different case for the alias
        
        assertFalse(a1.equals(a2)); //different express 
    }
    
    @Test public void testClone() {
        AliasSymbol a1 = new AliasSymbol("X", new ExpressionSymbol("x", new Constant(1))); //$NON-NLS-1$ //$NON-NLS-2$
        a1.setOutputName("foo"); //$NON-NLS-1$
        AliasSymbol clone = (AliasSymbol)a1.clone();
        assertEquals(a1, clone);
        assertEquals(a1.getOutputName(), clone.getOutputName());
    }
    
}