openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/jdbc/mapping/TestPrecisionMapping.java

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 * distributed with this work for additional information
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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 *
 * http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.openjpa.persistence.jdbc.mapping;

import java.sql.Types;

import org.apache.openjpa.jdbc.meta.ClassMapping;
import org.apache.openjpa.jdbc.meta.FieldMapping;
import org.apache.openjpa.jdbc.schema.Column;
import org.apache.openjpa.persistence.test.SingleEMFTestCase;

public class TestPrecisionMapping extends SingleEMFTestCase {
    
    private static final String[] _DOUBLE_FIELDS =
            { "primDbl", "dbl" };
    private static final String _BIG_DECIMAL_FIELD = "bigDecimal";
    
    public void setUp() { 
        setUp(PrecisionTestEntity.class);
    }
    
    public void testUnspecified() {
        testDoubleMapping("", Types.DOUBLE,0,0);
        testBigDecimalMapping("", Types.NUMERIC, 0, 0);
    }
    
    public void testPrecisionOnly() { 
        // testDoubleMapping("Precis", Types.NUMERIC, 10, 0);
        testBigDecimalMapping("Precis", Types.NUMERIC, 10, 0);
    }
    
    public void testScaleOnly() { 
        // testDoubleMapping("Scale", Types.NUMERIC, 0 , 10);
        testBigDecimalMapping("Scale", Types.NUMERIC, 0, 10);
    }
    
    public void testPrecisionAndScale() { 
//        testDoubleMapping("PrecisScale", Types.NUMERIC,10,10);
        testBigDecimalMapping("PrecisScale", Types.NUMERIC, 10, 10);
    }
    
    private void testBigDecimalMapping(String fieldSuffix, int expectedType,
            int expectedPrecision, int expectedScale) {
        ClassMapping mapping = getMapping(PrecisionTestEntity.class);
        FieldMapping fm =
                mapping.getFieldMapping(_BIG_DECIMAL_FIELD + fieldSuffix);

        Column[] cols = fm.getColumns();
        assertEquals(1, cols.length);
        assertEquals(expectedType, cols[0].getType());
        assertEquals(expectedPrecision, cols[0].getSize());
        assertEquals(expectedScale, cols[0].getDecimalDigits());
    }
    
    private void testDoubleMapping(String fieldSuffix, int expectedType,
            int expectedPrecision, int expectedScale) {
        ClassMapping mapping = getMapping(PrecisionTestEntity.class);
        FieldMapping fm; 
        
        for(String s : _DOUBLE_FIELDS) {
            fm = mapping.getFieldMapping(s + fieldSuffix);
            
            Column[] cols = fm.getColumns();
            assertEquals(1, cols.length);
            assertEquals(expectedType ,cols[0].getType()); 
            assertEquals(expectedPrecision, cols[0].getSize());
            assertEquals(expectedScale, cols[0].getDecimalDigits());
        }
    }
    
}