org.scalatest

BeforeAndAfterAll

trait BeforeAndAfterAll extends AbstractSuite

Trait that can be mixed into suites that need methods invoked before and after executing the suite. This trait allows code to be executed before and/or after all the tests and nested suites of a suite are run. This trait overrides run (the main run method that takes seven parameters, an optional test name, reporter, stopper, filter, configMap, optional distributor, and tracker) and calls the beforeAll method, then calls super.run. After the super.run invocation completes, whether it returns normally or completes abruptly with an exception, this trait's run method will invoke afterAll.

Trait BeforeAndAfterEach defines two overloaded variants each of beforeAll and afterAll, one which takes a configMap and another that takes no arguments. This traits implemention of the variant that takes the configMap simply invokes the variant that takes no parameters, which does nothing. Thus you can override whichever variant you want. If you need something from the configMap before all tests and nested suites are run, override beforeAll(Map[String, Any]). Otherwise, override beforeAll().

For example, the following MasterSuite mixes in BeforeAndAfterAll and in beforeAll, creates and writes to a temp file, taking the name of the temp file from the configMap. This same configMap is then passed to the run methods of the nested suites, OneSuite, TwoSuite, RedSuite, and BlueSuite, so those suites can access the filename and, therefore, the file's contents. After all of the nested suites have executed, afterAll is invoked, which again grabs the file name from the configMap and deletes the file:

import org.scalatest.SuperSuite
import org.scalatest.BeforeAndAfterEach
import java.io.FileReader
import java.io.FileWriter
import java.io.File

class MasterSuite extends Suite with BeforeAndAfterAll {

private val FileNameKeyInGoodies = "tempFileName"

// Set up the temp file needed by the test, taking // a file name from the configMap override def beforeAll(configMap: Map[String, Any]) {

require( configMap.isDefinedAt(FileNameKeyInGoodies), "must place a temp file name in the configMap under the key: " + FileNameKeyInGoodies )

val fileName = configMap(tempFileName))

val writer = new FileWriter(fileName) try { writer.write("Hello, suite of tests!") } finally { writer.close() } }

override def nestedSuites = List(new OneSuite, new TwoSuite, new RedSuite, new BlueSuite)

// Delete the temp file override def afterAll(configMap: Map[String, Any]) { // No need to require that configMap contains the key again because it won't get // here if it didn't contain the key in beforeAll val fileName = configMap(tempFileName)) val file = new File(fileName) file.delete() } }

Because the BeforeAndAfterAll trait invokes super.run to run the suite, you may need to mix this trait in last to get the desired behavior. For example, this won't work, because BeforeAndAfterAll is "super" to FunSuite:

class MySuite extends BeforeAndAfterAll with FunSuite

You'd need to turn it around, so that FunSuite is "super" to BeforeAndAfterAll, like this:

class MySuite extends FunSuite with BeforeAndAfterAll

Note: This trait does not currently ensure that the code in afterAll is executed after all the tests and nested suites are executed if a Distributor is passed. The plan is to do that eventually, but in the meantime, be aware that afterAll is guaranteed to be run after all the tests and nested suites only when they are run sequentially.

known subclasses: BeforeAndAfter

Inherits

  1. AbstractSuite
  2. AnyRef
  3. Any

Value Members

  1. def equals(arg0: Any): Boolean

    This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence

    This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence.

    The default implementations of this method is an equivalence relation:

    • It is reflexive: for any instance x of type Any, x.equals(x) should return true.
    • It is symmetric: for any instances x and y of type Any, x.equals(y) should return true if and only if y.equals(x) returns true.
    • It is transitive: for any instances x, y, and z of type AnyRef if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.

    If you override this method, you should verify that your implementation remains an equivalence relation. Additionally, when overriding this method it is often necessary to override hashCode to ensure that objects that are "equal" (o1.equals(o2) returns true) hash to the same Int (o1.hashCode.equals(o2.hashCode)).

    arg0

    the object to compare against this object for equality.

    returns

    true if the receiver object is equivalent to the argument; false otherwise.

    definition classes: AnyRef ⇐ Any
  2. def expectedTestCount(filter: Filter): Int

    The total number of tests that are expected to run when this Suite's run method is invoked

    The total number of tests that are expected to run when this Suite's run method is invoked.

    filter

    a Filter with which to filter tests to count based on their tags

    attributes: abstract
    definition classes: AbstractSuite
  3. def hashCode(): Int

    Returns a hash code value for the object

    Returns a hash code value for the object.

    The default hashing algorithm is platform dependent.

    Note that it is allowed for two objects to have identical hash codes (o1.hashCode.equals(o2.hashCode)) yet not be equal (o1.equals(o2) returns false). A degenerate implementation could always return 0. However, it is required that if two objects are equal (o1.equals(o2) returns true) that they have identical hash codes (o1.hashCode.equals(o2.hashCode)). Therefore, when overriding this method, be sure to verify that the behavior is consistent with the equals method.

    definition classes: AnyRef ⇐ Any
  4. def nestedSuites: List[Suite]

    A List of this Suite object's nested Suites

    A List of this Suite object's nested Suites. If this Suite contains no nested Suites, this method returns an empty List.

    attributes: abstract
    definition classes: AbstractSuite
  5. def run(testName: Option[String], reporter: Reporter, stopper: Stopper, filter: Filter, configMap: Map[String, Any], distributor: Option[Distributor], tracker: Tracker): Unit

    Execute a suite surrounded by calls to beforeAll and afterAll

    Execute a suite surrounded by calls to beforeAll and afterAll.

    This trait's implementation of this method ("this method") invokes beforeAll(Map[String, Any]) before executing any tests or nested suites and afterAll(Map[String, Any]) after executing all tests and nested suites. It runs the suite by invoking super.run, passing along the seven parameters passed to it.

    If any invocation of beforeAll completes abruptly with an exception, this method will complete abruptly with the same exception. If any call to super.run completes abruptly with an exception, this method will complete abruptly with the same exception, however, before doing so, it will invoke afterAll. If afterAll also completes abruptly with an exception, this method will nevertheless complete abruptly with the exception previously thrown by super.run. If super.run returns normally, but afterAll completes abruptly with an exception, this method will complete abruptly with the same exception.

    testName

    an optional name of one test to execute. If None, all relevant tests should be executed. I.e., None acts like a wildcard that means execute all relevant tests in this Suite.

    reporter

    the Reporter to which results will be reported

    stopper

    the Stopper that will be consulted to determine whether to stop execution early.

    filter

    a Filter with which to filter tests based on their tags

    configMap

    a Map of key-value pairs that can be used by the executing Suite of tests.

    distributor

    an optional Distributor, into which to put nested Suites to be executed by another entity, such as concurrently by a pool of threads. If None, nested Suites will be executed sequentially.

    tracker

    a Tracker tracking Ordinals being fired by the current thread.

  6. def tags: Map[String, Set[String]]

    A Map whose keys are String tag names with which tests in this Suite are marked, and whose values are the Set of test names marked with each tag

    A Map whose keys are String tag names with which tests in this Suite are marked, and whose values are the Set of test names marked with each tag. If this Suite contains no tags, this method returns an empty Map.

    Subclasses may implement this method to define and/or discover tags in a custom manner, but overriding method implementations should never return an empty Set as a value. If a tag has no tests, its name should not appear as a key in the returned Map.

    attributes: abstract
    definition classes: AbstractSuite
  7. def testNames: Set[String]

    An Set of test names

    An Set of test names. If this Suite contains no tests, this method returns an empty Set.

    Although subclass and subtrait implementations of this method may return a Set whose iterator produces String test names in a well-defined order, the contract of this method does not required a defined order. Subclasses are free to implement this method and return test names in either a defined or undefined order.

    attributes: abstract
    definition classes: AbstractSuite
  8. def toString(): String

    Returns a string representation of the object

    Returns a string representation of the object.

    The default representation is platform dependent.

    definition classes: AnyRef ⇐ Any