Groovy example source code file (VariableScopingBug.groovy)

This example Groovy source code file (VariableScopingBug.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

groovyshell, groovyshell, sometest, sometest, testsupport, testsupport, variablescopingbug, variablescopingbug

The Groovy VariableScopingBug.groovy source code

package groovy.bugs

/**
 * @version $Revision: 4996 $
 */
class VariableScopingBug extends TestSupport {
    
    void testBug() {
        // undeclared variable x

        shouldFail {
            def shell = new GroovyShell()
            shell.evaluate("""
                class SomeTest {
                    void run() {
                        for (z in 0..2) {
                            def x = [1, 2, 3]
                        }

                        for (t in 0..3) {
                            for (y in x) {
                                println x
                            }
                        }
                    }
               }
               new SomeTest().run()""")
           }
    }

    void testVariableReuse() {
        def shell = new GroovyShell()
        shell.evaluate("""
            for (z in 0..2) {
                def x = [1, 2, 3]
            }

            for (t in 0..3) {
                def x = 123
                println x
            }""")
    }
}