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ScalaTest is a free, open-source testing toolkit for Scala and Java
programmers.
The newest version!
/*
* Copyright 2001-2013 Artima, Inc.
*
* 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 org
import scala.util.control.NonFatal
package object scalautils {
/**
* Type alias for String
.
*/
type ErrorMessage = String
/**
* Returns the result of evaluating the given block f
, wrapped in a Good
, or
* if an exception is thrown, the Throwable
, wrapped in a Bad
.
*
*
* Here are some examples:
*
*
* * scala> import org.scalautils._
* import org.scalautils._
*
* scala> attempt { 2 / 1 }
* res0: org.scalautils.Or[Int,Throwable] = Good(2)
*
* scala> attempt { 2 / 0 }
* res1: org.scalautils.Or[Int,Throwable] = Bad(java.lang.ArithmeticException: / by zero)
*
*
* @param f the block to attempt to evaluate
* @return the result of evaluating the block, wrapped in a Good
, or the
* thrown exception, wrapped in a Bad
*/
def attempt[R](f: => R): R Or Throwable =
try Good(f)
catch {
case e: Throwable if NonFatal(e) => Bad(e)
}
}