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Member "groovy-4.0.12/subprojects/groovy-contracts/src/test/groovy/org/apache/groovy/contracts/tests/interfaces/AbstractClassInheritanceTests.groovy" (31 Jan 1980, 2750 Bytes) of package /linux/misc/apache-groovy-src-4.0.12.zip:

    1 /*
    2  *  Licensed to the Apache Software Foundation (ASF) under one
    3  *  or more contributor license agreements.  See the NOTICE file
    4  *  distributed with this work for additional information
    5  *  regarding copyright ownership.  The ASF licenses this file
    6  *  to you under the Apache License, Version 2.0 (the
    7  *  "License"); you may not use this file except in compliance
    8  *  with the License.  You may obtain a copy of the License at
    9  *
   10  *    http://www.apache.org/licenses/LICENSE-2.0
   11  *
   12  *  Unless required by applicable law or agreed to in writing,
   13  *  software distributed under the License is distributed on an
   14  *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   15  *  KIND, either express or implied.  See the License for the
   16  *  specific language governing permissions and limitations
   17  *  under the License.
   18  */
   19 package org.apache.groovy.contracts.tests.interfaces
   20 
   21 import org.apache.groovy.contracts.PreconditionViolation
   22 import org.apache.groovy.contracts.tests.basic.BaseTestClass
   23 import org.junit.Test
   24 
   25 class AbstractClassInheritanceTests extends BaseTestClass {
   26 
   27     def source_stackable = '''
   28 @Contracted
   29 package tests
   30 
   31 import groovy.contracts.*
   32 
   33 abstract class Stackable {
   34 
   35   @Requires({ item != null })
   36   abstract void push(def item)
   37 
   38   @Requires({ item1 != null && item2 != null })
   39   abstract void multi_push(def item1, def item2)
   40 }
   41 '''
   42 
   43     def source_stack = '''
   44 @Contracted
   45 package tests
   46 
   47 import groovy.contracts.*
   48 
   49 @Invariant({ list != null && anotherName != null })
   50 class Stack extends Stackable  {
   51 
   52   protected def list
   53   def anotherName = ""
   54   def protected name = ""
   55 
   56   public Stack()  {
   57     this.list = []
   58   }
   59 
   60   public Stack(def list)  {
   61     this.list = list
   62   }
   63 
   64   @Ensures({ list[-1] == item })
   65   void push(def item)  {
   66     list.add item
   67   }
   68 
   69   void multi_push(def item1, def item2)  {
   70     push item1
   71     push item2
   72   }
   73 
   74 //  @Requires({ list.size() > 0 })
   75 //  @Ensures({ result != null })
   76 //  def Object pop()  {
   77 //    list[-1]
   78 //  }
   79 
   80   @Ensures({ result -> result == list.size() })
   81   def int size()  {
   82     return list.size()
   83   }
   84 
   85   @Ensures({ result -> comp1 != null && comp2 != null && result > 0 })
   86   def int size(def comp1, comp2)  {
   87       return comp1 + comp2
   88   }
   89 
   90   @Ensures({ result -> result == 'tostring'})
   91   @Override
   92   def String toString()  {
   93     return 'tostring'
   94   }
   95 
   96   void modifyClassInvariant()  {
   97     anotherName = null
   98   }
   99 }
  100 '''
  101 
  102     @Test
  103     void creation() {
  104         add_class_to_classpath(source_stackable)
  105         create_instance_of(source_stack)
  106     }
  107 
  108     @Test
  109     void push_precondition() {
  110         add_class_to_classpath(source_stackable)
  111 
  112         def stack = create_instance_of(source_stack)
  113 
  114         shouldFail PreconditionViolation.class, {
  115             stack.push null
  116         }
  117     }
  118 }