org.scalautils.TripleEquals.scala Maven / Gradle / Ivy

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ScalaTest is a free, open-source testing toolkit for Scala and Java programmers.

There is a newer version: 2.0.M6-SNAP4

/*
 * Copyright 2001-2012 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.scalautils

// Gives you unconstrained equality
trait TripleEquals extends EqualityConstraints {

  implicit override def defaultEquality[A]: Equality[A] = new DefaultEquality[A]

  implicit override def convertToEqualizer[T](left: T): Equalizer[T] = new Equalizer(left)
  override def convertToCheckingEqualizer[T](left: T): CheckingEqualizer[T] = new CheckingEqualizer(left)

  override def convertToLegacyEqualizer[T](left: T): LegacyEqualizer[T] = new LegacyEqualizer(left)
  override def convertToLegacyCheckingEqualizer[T](left: T): LegacyCheckingEqualizer[T] = new LegacyCheckingEqualizer(left)


  // implicit override def unconstrainedEquality[A, B](implicit equalityOfA: Equality[A]): EqualityConstraint[A, B] = new BasicEqualityConstraint[A, B](equalityOfA)

  override def lowPriorityTypeCheckedEqualityConstraint[A, B](implicit equalityOfA: Equality[A], ev: A <:< B): EqualityConstraint[A, B] = new BasicEqualityConstraint[A, B](equalityOfA)
  override def typeCheckedEqualityConstraint[A, B](implicit equalityOfA: Equality[A], ev: B <:< A): EqualityConstraint[A, B] = new BasicEqualityConstraint[A, B](equalityOfA)

  override def lowPriorityConversionCheckedEqualityConstraint[A, B](implicit equalityOfB: Equality[B], cnv: A => B): EqualityConstraint[A, B] = new AToBEqualityConstraint[A, B](equalityOfB, cnv)
  override def conversionCheckedEqualityConstraint[A, B](implicit equalityOfA: Equality[A], cnv: B => A): EqualityConstraint[A, B] = new BToAEqualityConstraint[A, B](equalityOfA, cnv)
}

object TripleEquals extends TripleEquals