assertEquals( BaseSingleFieldConstraint.TYPE_EXPR_BUILDER_VALUE, constraint.getConstraintValueType() );
assertEquals( "", constraint.getValue() );
assertEquals( 2, constraint.getExpressionValue().getParts().size() );
assertTrue( constraint.getExpressionValue().getParts().get( 0 ) instanceof ExpressionVariable );
ExpressionVariable expressionVariable = (ExpressionVariable) constraint.getExpressionValue().getParts().get( 0 );
assertEquals( "a", expressionVariable.getName() );
assertEquals( "Applicant", expressionVariable.getClassType() );
assertEquals( "this", expressionVariable.getGenericType() );
assertEquals( constraint.getExpressionValue().getParts().get( 1 ), expressionVariable.getNext() );
assertTrue( constraint.getExpressionValue().getParts().get( 1 ) instanceof ExpressionField );
ExpressionField expressionField = (ExpressionField) constraint.getExpressionValue().getParts().get( 1 );
assertEquals( "age", expressionField.getName() );
assertEquals( "java.lang.Integer", expressionField.getClassType() );