org.scalatest.words.ArrayWrapper.scala Maven / Gradle / Ivy
/*
* 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.scalatest.words
import org.scalatest.FailureMessages
import org.scalactic.Prettifier
/**
* This wrapper gives better toString (Array(x, x, x)) as compared to Scala default one (WrappedArray(x, x, x)).
*/
private[scalatest] class ArrayWrapper[T](underlying: Array[T]) extends Traversable[T] {
def foreach[U](f: (T) => U): Unit = {
var index = 0
while (index < underlying.length) {
index += 1
f(underlying(index - 1))
}
}
// Need to prettify the array's toString, because by the time it gets to decorateToStringValue, the array
// has been wrapped in this Traversable and so it won't get prettified anymore by FailureMessages.decorateToStringValue.
override def toString: String = FailureMessages.decorateToStringValue(Prettifier.default, underlying)
}