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Groovy example source code file (ClosureMissingMethodTest.groovy)

This example Groovy source code file (ClosureMissingMethodTest.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

closuremissingmethodtest, closuremissingmethodtest, groovyshell, groovyshell, groovytestcase, metaclass, metaclass, missingmethodexception, missingmethodexception

The Groovy ClosureMissingMethodTest.groovy source code

/*
 * Copyright 2003-2009 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package groovy

/**
 * @author Danno Ferrin
 * @version $Revision: ???? $
 */
class ClosureMissingMethodTest extends GroovyTestCase {

  void testInScript() {
      GroovyShell shell = new GroovyShell()
      shell.evaluate("""
          int count = 0

          foo = {
            println "inside foo"
            count++
            bar()
          }
          baz = {
            println "inside baz"
            foo()
          }

          try {
              baz()
              fail()
          } catch (org.codehaus.groovy.runtime.InvokerInvocationException iie) {
              assert iie.cause.method == 'bar'
              assert count == 1
          } catch (MissingMethodException mme) {
              assert mme.method == 'bar'
              assert count == 1
          }
      """);
  }

  void testInMethod() {
      int count = 0

      def foo = {
          println "inside foo"
          count++
          bar()
      }
      def baz = {
          println "inside baz"
          foo()
      }

      try {
          baz()
          fail()
      } catch (MissingMethodException mme) {
          assert mme.method == 'bar'
          assert count == 1
      }
  }

  void testWithMetaClassInScript() {
      GroovyShell shell = new GroovyShell()
      shell.evaluate("""
          int count = 0

          foo = {
            println "inside foo"
            count++
            bar()
          }
          baz = {
            println "inside baz"
            foo()
          }
          mc = new ExpandoMetaClass(baz.getClass())
          mc.initialize()
          baz.metaClass = mc

          try {
              baz()
              fail()
          } catch (org.codehaus.groovy.runtime.InvokerInvocationException iie) {
              assert iie.cause.method == 'bar'
              assert count == 1
          } catch (MissingMethodException mme) {
              assert mme.method == 'bar'
              assert count == 1
          }
      """);
  }

  void testWithMetaClassInMethod() {
      int count = 0

      def foo = {
          println "inside foo"
          count++
          bar()
      }
      def baz = {
          println "inside baz"
          foo()
      }
      MetaClass mc = new ExpandoMetaClass(baz.getClass())
      mc.initialize()
      baz.metaClass = mc

      try {
          baz()
          fail()
      } catch (MissingMethodException mme) {
          assert mme.method == 'bar'
          assert count == 1
      }
  }
}

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