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org.scalatest.AsyncTestSuiteMixin.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


/**
 * Trait defining abstract "lifecycle" methods that are implemented in AsyncTestSuite
 * and can be overridden in stackable modification traits.
 *
 * 

* The main use case for this trait is to override withFixture in a mixin trait. * Here's an example: *

* *
 * trait Builder extends AsyncTestSuiteMixin { this: AsyncTestSuite =>
 * 
 *   final val builder = new ThreadSafeStringBuilder
 * 
 *   abstract override def withFixture(test: NoArgAsyncTest) = {
 *     builder.append("ScalaTest is ")
 *     complete {
 *       super.withFixture(test) // To be stackable, must call super.withFixture
 *     } lastly {
 *       builder.clear()
 *     }
 *   }
 * }
 * 
*/ trait AsyncTestSuiteMixin extends SuiteMixin { this: AsyncTestSuite => /** * Run the passed test function in the context of a fixture established by this method. * *

* This method should set up the fixture needed by the tests of the * current suite, invoke the test function, and if needed, register a callback * on the resulting FutureOutcome to perform any clean * up needed after the test completes. Because the NoArgAsyncTest function * passed to this method takes no parameters, preparing the fixture will require * side effects, such as reassigning instance vars in this Suite or initializing * a globally accessible external database. If you want to avoid reassigning instance vars * you can use FixtureAsyncTestSuite. *

* * @param test the no-arg async test function to run with a fixture */ protected def withFixture(test: NoArgAsyncTest): FutureOutcome }




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