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Groovy example source code file (DependencyTest.java)

This example Groovy source code file (DependencyTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Groovy tags/keywords

a1, a1, a2, a2, a3, c1, c1, c2, c2, c3, compilationunit, dependencytracker, io, override, set, util

The Groovy DependencyTest.java source code

package org.codehaus.groovy.tools.gse;

import java.io.StringBufferInputStream;
import java.util.Set;

import org.codehaus.groovy.ast.ClassNode;
import org.codehaus.groovy.classgen.GeneratorContext;
import org.codehaus.groovy.control.CompilationFailedException;
import org.codehaus.groovy.control.CompilationUnit;
import org.codehaus.groovy.control.Phases;
import org.codehaus.groovy.control.SourceUnit;

import groovy.util.GroovyTestCase;

@SuppressWarnings("deprecation")
public class DependencyTest extends GroovyTestCase {
    private CompilationUnit cu;
    StringSetMap cache;
    
    @Override
    protected void setUp() throws Exception {
        super.setUp();
        cu = new CompilationUnit();
        cache = new StringSetMap();
        cu.addPhaseOperation(new CompilationUnit.PrimaryClassNodeOperation() {
            @Override
            public void call(final SourceUnit source, GeneratorContext context, ClassNode classNode) 
                throws CompilationFailedException 
            {   
                DependencyTracker dt = new DependencyTracker(source,cache);
                dt.visitClass(classNode);
            }
        }, Phases.CLASS_GENERATION);
    }
    
    public void testDep(){
        cu.addSource("testDep.gtest", new StringBufferInputStream(
                "class C1 {}\n" +
                "class C2 {}\n" +
                "class C3 {}\n" +
                "class A1 {C1 x}\n" +
                "class A2 extends C2{}\n" +
                "class A3 {C1 foo(C2 x){new C3()}}\n"
        ));
        cu.compile(Phases.CLASS_GENERATION);
        assertEquals(cache.get("C1").size(),1);
        assertEquals(cache.get("C2").size(),1);
        assertEquals(cache.get("C3").size(),1);
        
        Set<String> dep = cache.get("A1");
        assertEquals(dep.size(),2);
        assertTrue(dep.contains("C1"));
        
        dep = cache.get("A2");
        assertEquals(dep.size(),2);
        assertTrue(dep.contains("C2"));
        
        dep = cache.get("A3");
        assertEquals(dep.size(),4);
        assertTrue(dep.contains("C1"));
        assertTrue(dep.contains("C2"));
        assertTrue(dep.contains("C3"));
    }
    
    public void testTransitiveDep(){
        cu.addSource("testTransitiveDep.gtest", new StringBufferInputStream(
                "class A1 {}\n" +
                "class A2 extends A1{}\n" +
                "class A3 extends A2{}\n"
        ));
        cu.compile(Phases.CLASS_GENERATION);
        cache.makeTransitiveHull();
         
        Set<String> dep = cache.get("A1");
        assertEquals(dep.size(),1);
        
        dep = cache.get("A2");
        assertEquals(dep.size(),2);
        assertTrue(dep.contains("A1"));
        
        dep = cache.get("A3");
        assertEquals(dep.size(),3);
        assertTrue(dep.contains("A1"));
        assertTrue(dep.contains("A2"));
    }
    

}

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