src/test/groovy/operator/UnaryMinusOperatorTest.groovy

/*
 *  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.operator

import groovy.test.GroovyTestCase

class UnaryMinusOperatorTest extends GroovyTestCase {

    void testUnaryMinus() {
        def value = -1
        
        assert value == -1
        
        def x = value + 2
        assert x == 1
        
        def y = -value
        assert y == 1
    }   
    
    void testBug() {
        def a = 1
        def b = -a
        
        assert b == -1
    }
    
    void testShellBug() {
        assertScript("""
def a = 1
def b = -a
assert b == -1            
""")
    }
}