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Groovy example source code file (InvokeNormalMethodsFirstTest.groovy)

This example Groovy source code file (InvokeNormalMethodsFirstTest.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

groovy, groovy, groovytestcase, guillaume, guillaume, invokenormalmethodsfirsttest, object, object, printer, printer, string, wacky

The Groovy InvokeNormalMethodsFirstTest.groovy source code

package groovy

/**
 * Invoke normal methods first: if no statically typed method exist, use invokeMethod().
 *
 * @author Guillaume Laforge
 */
class InvokeNormalMethodsFirstTest extends GroovyTestCase {

    void testPrintln() {
        println "call global println function"
    }

    void testStaticMethodOnJdkObject() {
        def myString = " static method "
        def newString = myString.trim()

        assert newString == "static method"
    }

    void testCallClosure() {
        def clos = { msg -> msg + " is Groovy" }
        def str = clos("Guillaume")

        assert str == "Guillaume is Groovy"
    }

    void testCallNormalMethodFromAGroovyDefinedClass() {
        def p = new Printer()
        def str = "Guillaume"
        def result = p.returnSelf(str)

        assert result == str
    }

    void testCallNormalMethodFirstFromWackyObject() {
        def w = new Wacky()
        def str = "Groovy"
        def staticResult = w.returnSelf(str)
        def invokeResult = w.nonExistingMethod(str)

        assert staticResult == str
        assert invokeResult == "invokerMethod call"
    }
}

class Printer {
    String returnSelf(msg) {
        return msg
    }
}

class Wacky {
    String returnSelf(msg) {
        return msg
    }

    Object invokeMethod(String name, Object args) {
        return "invokerMethod call"
    }
}

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