Package org.apache.commons.beanutils

Examples of org.apache.commons.beanutils.Converter


    /**
     * Test Conversion to Character
     */
    public void testConvertToCharacter() {
        Converter converter = new CharacterConverter();
        assertEquals("Character Test", new Character('N'), converter.convert(Character.class, new Character('N')));
        assertEquals("String Test",    new Character('F'), converter.convert(Character.class, "FOO"));
        assertEquals("Integer Test",   new Character('3'), converter.convert(Character.class, new Integer(321)));
        try {
            converter.convert(Character.class, null);
            fail("Expected a ConversionException for null value");
        } catch (Exception e) {
            // expected result
        }
    }
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    /**
     * Test Conversion to Character (with default)
     */
    public void testDefault() {
        Converter converter = new CharacterConverter("C");
        assertEquals("Default Test",   new Character('C'), converter.convert(Character.class, null));
    }
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    /**
     * Test Invalid Amounts (too big/small)
     */
    public void testInvalidAmount() {
        Converter converter = makeConverter();
        Class clazz = Byte.class;

        Long min         = new Long(Byte.MIN_VALUE);
        Long max         = new Long(Byte.MAX_VALUE);
        Long minMinusOne = new Long(min.longValue() - 1);
        Long maxPlusOne  = new Long(max.longValue() + 1);

        // Minimum
        assertEquals("Minimum", new Byte(Byte.MIN_VALUE), converter.convert(clazz, min));

        // Maximum
        assertEquals("Maximum", new Byte(Byte.MAX_VALUE), converter.convert(clazz, max));

        // Too Small
        try {
            assertEquals("Minimum - 1", null, converter.convert(clazz, minMinusOne));
            fail("Less than minimum, expected ConversionException");
        } catch (Exception e) {
            // expected result
        }

        // Too Large
        try {
            assertEquals("Maximum + 1", null, converter.convert(clazz, maxPlusOne));
            fail("More than maximum, expected ConversionException");
        } catch (Exception e) {
            // expected result
        }
    }
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    /**
     * Test Invalid Amounts (too big/small)
     */
    public void testInvalidAmount() {
        Converter converter = makeConverter();
        Class clazz = Float.class;

        Double max     = new Double(Float.MAX_VALUE);
        Double tooBig  = new Double(Double.MAX_VALUE);

        // Maximum
        assertEquals("Maximum", new Float(Float.MAX_VALUE), converter.convert(clazz, max));

        // Too Large
        try {
            assertEquals("Too Big", null, converter.convert(clazz, tooBig));
            fail("More than maximum, expected ConversionException");
        } catch (Exception e) {
            // expected result
        }
    }
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    /**
     * Test Invalid Amounts (too big/small)
     */
    public void testInvalidAmount() {
        Converter converter = makeConverter();
        Class clazz = Short.class;

        Long min         = new Long(Short.MIN_VALUE);
        Long max         = new Long(Short.MAX_VALUE);
        Long minMinusOne = new Long(min.longValue() - 1);
        Long maxPlusOne  = new Long(max.longValue() + 1);

        // Minimum
        assertEquals("Minimum", new Short(Short.MIN_VALUE), converter.convert(clazz, min));

        // Maximum
        assertEquals("Maximum", new Short(Short.MAX_VALUE), converter.convert(clazz, max));

        // Too Small
        try {
            assertEquals("Minimum - 1", null, converter.convert(clazz, minMinusOne));
            fail("Less than minimum, expected ConversionException");
        } catch (Exception e) {
            // expected result
        }

        // Too Large
        try {
            assertEquals("Maximum + 1", null, converter.convert(clazz, maxPlusOne));
            fail("More than maximum, expected ConversionException");
        } catch (Exception e) {
            // expected result
        }
    }
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    /**
     * Test Invalid Amounts (too big/small)
     */
    public void testInvalidAmount() {
        Converter converter = makeConverter();
        Class clazz = Integer.class;

        Long min         = new Long(Integer.MIN_VALUE);
        Long max         = new Long(Integer.MAX_VALUE);
        Long minMinusOne = new Long(min.longValue() - 1);
        Long maxPlusOne  = new Long(max.longValue() + 1);

        // Minimum
        assertEquals("Minimum", new Integer(Integer.MIN_VALUE), converter.convert(clazz, min));

        // Maximum
        assertEquals("Maximum", new Integer(Integer.MAX_VALUE), converter.convert(clazz, max));

        // Too Small
        try {
            assertEquals("Minimum - 1", null, converter.convert(clazz, minMinusOne));
            fail("Less than minimum, expected ConversionException");
        } catch (Exception e) {
            // expected result
        }

        // Too Large
        try {
            assertEquals("Maximum + 1", null, converter.convert(clazz, maxPlusOne));
            fail("More than maximum, expected ConversionException");
        } catch (Exception e) {
            // expected result
        }
    }
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    /**
     * Test Conversion to String
     */
    public void testConvertToString() {
        Converter converter = new ClassConverter();

        assertEquals("Class Test", "java.lang.Integer", converter.convert(String.class, Integer.class));
        assertEquals("Value Test", "foo", converter.convert(String.class, "foo"));
        assertEquals("Value Test", "bar", converter.convert(String.class, new StringBuffer("bar")));
        assertEquals("Null Test",   null, converter.convert(String.class, null));
    }
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    /**
     * Test Conversion to Class
     */
    public void testConvertToClass() {
        Converter converter = new ClassConverter();

        assertEquals("Class Test",        Integer.class, converter.convert(Class.class, Integer.class));
        assertEquals("String Test",       Integer.class, converter.convert(Class.class, "java.lang.Integer"));
        assertEquals("StringBuffer Test", Integer.class, converter.convert(Class.class, new StringBuffer("java.lang.Integer")));

        // Invalid Test
        try {
            converter.convert(Class.class, new Integer(6));
            fail("Expected invalid value to fail");
        } catch (ConversionException e) {
            // expected result
        }

        // Test Null
        try {
            converter.convert(Class.class, null);
            fail("Expected null value to fail");
        } catch (ConversionException e) {
            // expected result
        }
    }
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    /**
     * Test Invalid Conversion with default
     */
    public void testConvertToClassDefault() {

        Converter converter = new ClassConverter(Object.class);

        assertEquals("Invalid Test", Object.class, converter.convert(Class.class, new Integer(6)));
        assertEquals("Null Test",    Object.class, converter.convert(Class.class, null));
    }
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    /**
     * Test Invalid Conversion with default "null"
     */
    public void testConvertToClassDefaultNull() {

        Converter converter = new ClassConverter(null);

        assertEquals("Invalid Test", null, converter.convert(Class.class, new Integer(6)));
        assertEquals("Null Test",    null, converter.convert(Class.class, null));
    }
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