org.scalatest.BeforeAndAfterAll

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 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 BeforeAndAfterAll defines two overloaded variants each of beforeAll and afterAll, one that takes a configMap and another that takes no arguments. This trait's 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 ExampleSpec 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, OneSpec, TwoSpec, RedSpec, and BlueSpec, 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. Each of these five test classes extend trait TempFileExistsSpec, which defines a test that ensures the temp file exists. (Note: if you're unfamiliar with the withFixture(OneArgTest) approach to shared fixtures, check out the documentation for trait fixture.FlatSpec.)

package org.scalatest.examples.beforeandafterall

import org.scalatest._
import java.io._

trait TempFileExistsSpec extends fixture.FlatSpec {

  type FixtureParam = File
  override def withFixture(test: OneArgTest) {
    val fileName = test.configMap("tempFileName").asInstanceOf[String]
    val file = new File(fileName)
    withFixture(test.toNoArgTest(file)) // loan the fixture to the test
  }

  "The temp file" should ("exist in " + suiteName) in { file =>
    assert(file.exists)
  }
}

class OneSpec extends TempFileExistsSpec
class TwoSpec extends TempFileExistsSpec
class RedSpec extends TempFileExistsSpec
class BlueSpec extends TempFileExistsSpec

class ExampleSpec extends Specs(
  new OneSpec,
  new TwoSpec,
  new RedSpec,
  new BlueSpec
) with TempFileExistsSpec with BeforeAndAfterAll {

  private val tempFileName = "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(tempFileName),
      "must place a temp file name in the configMap under the key: " + tempFileName
    )

    val fileName = configMap(tempFileName).asInstanceOf[String]

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

  // 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").asInstanceOf[String]
    val file = new File(fileName)
    file.delete()
  }
}

Running the above class in the interpreter will give an error if you don't supply a mapping for "tempFileName" in the config map:

scala> new ExampleSpec execute
ExampleSpec:
Exception encountered when invoking run on a suite. *** ABORTED ***
  java.lang.IllegalArgumentException: requirement failed: must place a temp file name in the configMap under the key: tempFileName
  ...
*** RUN ABORTED ***
  java.lang.IllegalArgumentException: requirement failed: must place a temp file name in the configMap under the key: tempFileName
  ...

If you do supply a mapping for "tempFileName" in the config map, you'll see that the temp file is available to all the tests:

scala> new ExampleSpec execute (configMap = Map("tempFileName" -> "tmp.txt"))
ExampleSpec:
OneSpec:
The temp file
- should exist in OneSpec
TwoSpec:
The temp file
- should exist in TwoSpec
RedSpec:
The temp file
- should exist in RedSpec
BlueSpec:
The temp file
- should exist in BlueSpec
The temp file
- should exist in ExampleSpec

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 (in fact, in a soon-to-be-released 2.0 milestone), 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.

Self Type: BeforeAndAfterAll with Suite

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Abstract Value Members

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
SuiteMixin
def nestedSuites : IndexedSeq[Suite]

An immutable IndexedSeq of this SuiteMixin object's nested Suites.
An immutable IndexedSeq of this SuiteMixin object's nested Suites. If this SuiteMixin contains no nested Suites, this method returns an empty IndexedSeq.

Attributes
abstract
Definition Classes
SuiteMixin
def rerunner : Option[String]

The fully qualified name of the class that can be used to rerun this suite.
The fully qualified name of the class that can be used to rerun this suite.

Attributes
abstract
Definition Classes
SuiteMixin
def runNestedSuites (args: Args): Status

Runs zero to many of this suite's nested suites.
Runs zero to many of this suite's nested suites.
args
the Args for this run
returns
a Status object that indicates when all nested suites started by this method have completed, and whether or not a failure occurred.

Attributes
protected abstract
Definition Classes
SuiteMixin
def runTest (testName: String, args: Args): Status

Runs a test.
Runs a test.
testName
the name of one test to execute.
args
the Args for this run
returns
a Status object that indicates when the test started by this method has completed, and whether or not it failed .

Attributes
protected abstract
Definition Classes
SuiteMixin
def runTests (testName: Option[String], args: Args): Status

Runs zero to many of this suite's tests.
Runs zero to many of this suite's tests.
testName
an optional name of one test to run. If None, all relevant tests should be run. I.e., None acts like a wildcard that means run all relevant tests in this Suite.
args
the Args for this run
returns
a Status object that indicates when all tests started by this method have completed, and whether or not a failure occurred.

Attributes
protected abstract
Definition Classes
SuiteMixin
val styleName : String

This suite's style name.
This suite's style name.
This lifecycle method provides a string that is used to determine whether this suite object's style is one of the chosen styles for the project.

Attributes
abstract
Definition Classes
SuiteMixin
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
SuiteMixin
def testNames : Set[String]

A Set of test names.
A 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
SuiteMixin
def withFixture (test: NoArgTest): Unit

Runs the passed test function with a fixture established by this method.
Runs the passed test function with 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, perform any clean up needed after the test completes. Because the NoArgTest function passed to this method takes no parameters, preparing the fixture will require side effects, such as initializing an external database.
test
the no-arg test function to run with a fixture

Attributes
protected abstract
Definition Classes
SuiteMixin

Concrete Value Members

def != (arg0: AnyRef): Boolean

Attributes
final
Definition Classes
AnyRef
def != (arg0: Any): Boolean

Attributes
final
Definition Classes
Any
def ## (): Int

Attributes
final
Definition Classes
AnyRef → Any
def == (arg0: AnyRef): Boolean

Attributes
final
Definition Classes
AnyRef
def == (arg0: Any): Boolean

Attributes
final
Definition Classes
Any
def afterAll (configMap: Map[String, Any]): Unit

Defines a method (that takes a configMap) to be run after all of this suite's tests and nested suites have been run.
Defines a method (that takes a configMap) to be run after all of this suite's tests and nested suites have been run.
This trait's implementation of run invokes this method after executing all tests and nested suites (passing in the configMap passed to it), thus this method can be used to tear down a test fixture needed by the entire suite. This trait's implementation of this method invokes the overloaded form of afterAll that takes no configMap.

Attributes
protected
def afterAll (): Unit

Defines a method to be run after all of this suite's tests and nested suites have been run.
Defines a method to be run after all of this suite's tests and nested suites have been run.
This trait's implementation of run invokes the overloaded form of this method that takes a configMap after executing all tests and nested suites. This trait's implementation of that afterAll(Map[String, Any]) method simply invokes this afterAll() method. Thus this method can be used to tear down a test fixture needed by the entire suite, when you don't need anything from the configMap. This trait's implementation of this method does nothing.

Attributes
protected
def asInstanceOf [T0] : T0

Attributes
final
Definition Classes
Any
def beforeAll (configMap: Map[String, Any]): Unit

Defines a method (that takes a configMap) to be run before any of this suite's tests or nested suites are run.
Defines a method (that takes a configMap) to be run before any of this suite's tests or nested suites are run.
This trait's implementation of run invokes this method before executing any tests or nested suites (passing in the configMap passed to it), thus this method can be used to set up a test fixture needed by the entire suite. This trait's implementation of this method invokes the overloaded form of beforeAll that takes no configMap.

Attributes
protected
def beforeAll (): Unit

Defines a method to be run before any of this suite's tests or nested suites are run.
Defines a method to be run before any of this suite's tests or nested suites are run.
This trait's implementation of run invokes the overloaded form of this method that takes a configMap before executing any tests or nested suites. This trait's implementation of that beforeAll(Map[String, Any]) method simply invokes this beforeAll() method. Thus this method can be used to set up a test fixture needed by the entire suite, when you don't need anything from the configMap. This trait's implementation of this method does nothing.

Attributes
protected
def clone (): AnyRef

Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
@throws()
def eq (arg0: AnyRef): Boolean

Attributes
final
Definition Classes
AnyRef
def equals (arg0: Any): Boolean

Definition Classes
AnyRef → Any
def finalize (): Unit

Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
@throws()
def getClass (): java.lang.Class[_]

Attributes
final
Definition Classes
AnyRef
def hashCode (): Int

Definition Classes
AnyRef → Any
def isInstanceOf [T0] : Boolean

Attributes
final
Definition Classes
Any
def ne (arg0: AnyRef): Boolean

Attributes
final
Definition Classes
AnyRef
def notify (): Unit

Attributes
final
Definition Classes
AnyRef
def notifyAll (): Unit

Attributes
final
Definition Classes
AnyRef
def run (testName: Option[String], args: Args): Status

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 <cod>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 run. If None, all relevant tests should be run. I.e., None acts like a wildcard that means run all relevant tests in this Suite.
args
the Args for this run
returns
a Status object that indicates when the test started by this method has completed, and whether or not it failed .

Definition Classes
BeforeAndAfterAll → SuiteMixin
def synchronized [T0] (arg0: ⇒ T0): T0

Attributes
final
Definition Classes
AnyRef
def toString (): String

Definition Classes
AnyRef → Any
def wait (): Unit

Attributes
final
Definition Classes
AnyRef
Annotations
@throws()
def wait (arg0: Long, arg1: Int): Unit

Attributes
final
Definition Classes
AnyRef
Annotations
@throws()
def wait (arg0: Long): Unit

Attributes
final
Definition Classes
AnyRef
Annotations
@throws()

BeforeAndAfterAll

trait BeforeAndAfterAll extends SuiteMixin

Abstract Value Members

def expectedTestCount (filter: Filter): Int

def nestedSuites : IndexedSeq[Suite]

def rerunner : Option[String]

def runNestedSuites (args: Args): Status

def runTest (testName: String, args: Args): Status

def runTests (testName: Option[String], args: Args): Status

val styleName : String

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

def testNames : Set[String]

def withFixture (test: NoArgTest): Unit

Concrete Value Members

def != (arg0: AnyRef): Boolean

def != (arg0: Any): Boolean

def ## (): Int

def == (arg0: AnyRef): Boolean

def == (arg0: Any): Boolean

def afterAll (configMap: Map[String, Any]): Unit

def afterAll (): Unit

def asInstanceOf [T0] : T0

def beforeAll (configMap: Map[String, Any]): Unit

def beforeAll (): Unit

def clone (): AnyRef

def eq (arg0: AnyRef): Boolean

def equals (arg0: Any): Boolean

def finalize (): Unit

def getClass (): java.lang.Class[_]

def hashCode (): Int

def isInstanceOf [T0] : Boolean

def ne (arg0: AnyRef): Boolean

def notify (): Unit

def notifyAll (): Unit

def run (testName: Option[String], args: Args): Status

def synchronized [T0] (arg0: ⇒ T0): T0

def toString (): String

def wait (): Unit

def wait (arg0: Long, arg1: Int): Unit

def wait (arg0: Long): Unit

Inherited from SuiteMixin

Inherited from AnyRef

Inherited from Any