1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/samples/visitor/21-clientprovider/src-test/org/apidesign/test/visitor/PrintTest.java	Sat Jun 14 09:59:16 2008 +0200
     1.3 @@ -0,0 +1,49 @@
     1.4 +package org.apidesign.test.visitor;
     1.5 +
     1.6 +import static junit.framework.Assert.*;
     1.7 +import org.apidesign.visitor.notevolutionready.Language.Expression;
     1.8 +import org.apidesign.visitor.notevolutionready.Language.Number;
     1.9 +import org.apidesign.visitor.notevolutionready.Language.Plus;
    1.10 +import org.apidesign.visitor.notevolutionready.Language.Visitor;
    1.11 +import org.junit.Test;
    1.12 +
    1.13 +public class PrintTest {
    1.14 +
    1.15 +    // BEGIN: visitor.notevolutionready.print
    1.16 +    public static class PrintVisitor implements Visitor {
    1.17 +        StringBuffer sb = new StringBuffer();
    1.18 +        
    1.19 +        public void visitPlus(Plus s) {
    1.20 +            s.getFirst().visit(this);
    1.21 +            sb.append(" + ");
    1.22 +            s.getSecond().visit(this);
    1.23 +        }
    1.24 +
    1.25 +        public void visitNumber(Number n) {
    1.26 +            sb.append (n.getValue());
    1.27 +        }
    1.28 +    }
    1.29 +    
    1.30 +    @Test public void printOnePlusOne() {
    1.31 +        Number one = new Number(1);
    1.32 +        Expression plus = new Plus(one, one);
    1.33 +        
    1.34 +        PrintVisitor print = new PrintVisitor();
    1.35 +        plus.visit(print);
    1.36 +        
    1.37 +        assertEquals("1 + 1", print.sb.toString());
    1.38 +    }
    1.39 +    // END: visitor.notevolutionready.print
    1.40 +
    1.41 +    @Test public void printOnePlusTwoPlusThree() {
    1.42 +        Number one = new Number(1);
    1.43 +        Number two = new Number(2);
    1.44 +        Number three = new Number(3);
    1.45 +        Expression plus = new Plus(one, new Plus(two, three));
    1.46 +        
    1.47 +        PrintVisitor print = new PrintVisitor();
    1.48 +        plus.visit(print);
    1.49 +        
    1.50 +        assertEquals("1 + 2 + 3", print.sb.toString());
    1.51 +    }
    1.52 +}