/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you 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 org.apache.groovy.contracts.tests.post

import org.apache.groovy.contracts.tests.basic.BaseTestClass
import org.junit.Test

import static org.junit.Assert.assertEquals

class ResultVariablePostconditionTests extends BaseTestClass {


    def sourceCode = '''
@Contracted
package tests

import groovy.contracts.*

class ResultVariable {

  @Ensures({ result -> result == other })
  def return_given_argument(def other)  {
    return other
  }
}
'''

    @Test
    void string_return_value() {

        def instance = create_instance_of(sourceCode)

        assertEquals 'test', instance.return_given_argument('test')
    }

    @Test
    void null_return_value() {

        def instance = create_instance_of(sourceCode)

        assertEquals null, instance.return_given_argument(null)
    }
}
