public void testConversion() {
MutableDoubleConverter mutableDoubleConverter = (MutableDoubleConverter) TypeConverterManager.lookup(MutableDouble.class);
assertNull(mutableDoubleConverter.convert(null));
assertEquals(new MutableDouble(1.73), mutableDoubleConverter.convert(new MutableDouble(1.73)));
assertEquals(new MutableDouble(1), mutableDoubleConverter.convert(Integer.valueOf(1)));
assertEquals(new MutableDouble(1.73), mutableDoubleConverter.convert(Double.valueOf(1.73D)));
assertEquals(new MutableDouble(1.73), mutableDoubleConverter.convert("1.73"));
assertEquals(new MutableDouble(1.73), mutableDoubleConverter.convert(" 1.73 "));
assertEquals(new MutableDouble(1.73), mutableDoubleConverter.convert(new BigDecimal("1.73")));