| /* |
| * 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 groovy |
| |
| import groovy.test.GroovyTestCase |
| |
| class MinusEqualsTest extends GroovyTestCase { |
| |
| void testIntegerMinusEquals() { |
| def x = 4 |
| def y = 2 |
| x -= y |
| |
| assert x == 2 |
| |
| y -= 1 |
| |
| assert y == 1 |
| } |
| |
| void testCharacterMinusEquals() { |
| Character x = 4 |
| Character y = 2 |
| x -= y |
| |
| assert x == 2 |
| |
| y -= 1 |
| |
| assert y == 1 |
| } |
| |
| void testNumberMinusEquals() { |
| def x = 4.2 |
| def y = 2 |
| x -= y |
| |
| assert x == 2.2 |
| |
| y -= 0.1 |
| |
| assert y == 1.9 |
| } |
| |
| void testStringMinusEquals() { |
| def foo = "nice cheese" |
| foo -= "cheese" |
| |
| assert foo == "nice " |
| } |
| |
| |
| void testSortedSetMinusEquals() { |
| def sortedSet = new TreeSet() |
| sortedSet.add('one') |
| sortedSet.add('two') |
| sortedSet.add('three') |
| sortedSet.add('four') |
| sortedSet -= 'one' |
| sortedSet -= ['two', 'three'] |
| assertTrue 'sortedSet should have been a SortedSet', |
| sortedSet instanceof SortedSet |
| assertEquals 'sortedSet had the wrong number of elements', 1, sortedSet.size() |
| assertTrue 'sortedSet should have contained the word four', sortedSet.contains('four') |
| } |
| } |