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Groovy example source code file (ClosureInStaticMethodTest.groovy)

This example Groovy source code file (ClosureInStaticMethodTest.groovy) 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

closureinstaticmethodtest, closureinstaticmethodtest, groovytestcase, groovytestcase

The Groovy ClosureInStaticMethodTest.groovy source code

package groovy

/** 
 * @author <a href="mailto:james@coredevelopers.net">James Strachan
 * @version $Revision: 4996 $
 */
class ClosureInStaticMethodTest extends GroovyTestCase {

    void testClosureInStaticMethod() {
        def closure = closureInStaticMethod()
        assertClosure(closure)    
    }

    void testMethodClosureInStaticMethod() {
        def closure = methodClosureInStaticMethod()
        assertClosure(closure)    
    }
    
    static def closureInStaticMethod() {
        return { println(it) }
    }

    static def methodClosureInStaticMethod() {
        System.out.&println
    }
    
    static def assertClosure(Closure block) {
        assert block != null
        block.call("hello!")
    }
    
    void testClosureInStaticMethodCallingStaticMethod() {
       assert doThing(1) == 10
       assert this.doThing(1) == 10
       assert ClosureInStaticMethodTest.doThing(1) == 10
    }
    
    
    static doThing(count) {
      def ret = count
      if (count > 2) return ret
      count.times {
        ret += doThing(count+it+1)
      }
      return ret
    }
}

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