FunSpecLike
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package path
Helper class used by code generated by the assert macro.
Helper class used by code generated by the assert macro.
Class that, via an instance referenced from the it field,
supports test (and shared test) registration in FunSpecs.
Class that, via an instance referenced from the it field,
supports test (and shared test) registration in FunSpecs.
This class supports syntax such as the following test registration:
it("should be empty")
^
and the following shared test registration:
it should behave like nonFullStack(stackWithOneItem) ^
For more information and examples, see the main documentation for path.FunSpec.
A test function taking no arguments and returning an Outcome.
A test function taking no arguments and returning an Outcome.
For more detail and examples, see the relevant section in the
documentation for trait fixture.FlatSpec.
Class that, via an instance referenced from the they field,
supports test (and shared test) registration in FunSpecs.
Class that, via an instance referenced from the they field,
supports test (and shared test) registration in FunSpecs.
This class supports syntax such as the following test registration:
they("should be empty")
^
and the following shared test registration:
they should behave like nonFullStack(stackWithOneItem) ^
For more information and examples, see the main documentation for path.FunSpec.
Returns an Alerter that during test execution will forward strings passed to its
apply method to the current reporter.
Returns an Alerter that during test execution will forward strings passed to its
apply method to the current reporter. If invoked in a constructor, it
will register the passed string for forwarding later during test execution. If invoked while this
path.FunSpec is being executed, such as from inside a test function, it will forward the information to
the current reporter immediately. If invoked at any other time, it will
print to the standard output. This method can be called safely by any thread.
Assert that a boolean condition, described in String
message, is true.
Assert that a boolean condition, described in String
message, is true.
If the condition is true, this method returns normally.
Else, it throws TestFailedException with a helpful error message
appended with the String obtained by invoking toString on the
specified clue as the exception's detail message.
This method is implemented in terms of a Scala macro that will generate a more helpful error message for expressions of this form:
At this time, any other form of expression will just get a TestFailedException with message saying the given
expression was false. In the future, we will enhance this macro to give helpful error messages in more situations.
In ScalaTest 2.0, however, this behavior was sufficient to allow the === that returns Boolean
to be the default in tests. This makes === consistent between tests and production
code.
the boolean condition to assert
An objects whose toString method returns a message to include in a failure report.
NullArgumentException if message is null.
TestFailedException if the condition is false.
Assert that a boolean condition is true.
Assert that a boolean condition is true.
If the condition is true, this method returns normally.
Else, it throws TestFailedException.
This method is implemented in terms of a Scala macro that will generate a more helpful error message for expressions of this form:
At this time, any other form of expression will get a TestFailedException with message saying the given
expression was false. In the future, we will enhance this macro to give helpful error messages in more situations.
In ScalaTest 2.0, however, this behavior was sufficient to allow the === that returns Boolean
to be the default in tests. This makes === consistent between tests and production
code.
the boolean condition to assert
TestFailedException if the condition is false.
Asserts that a given string snippet of code passes both the Scala parser and type checker.
Asserts that a given string snippet of code passes both the Scala parser and type checker.
You can use this to make sure a snippet of code compiles:
assertCompiles("val a: Int = 1")
Although assertCompiles is implemented with a macro that determines at compile time whether
the snippet of code represented by the passed string compiles, errors (i.e.,
snippets of code that do not compile) are reported as test failures at runtime.
the snippet of code that should compile
Asserts that a given string snippet of code does not pass either the Scala parser or type checker.
Asserts that a given string snippet of code does not pass either the Scala parser or type checker.
Often when creating libraries you may wish to ensure that certain arrangements of code that
represent potential “user errors” do not compile, so that your library is more error resistant.
ScalaTest's Assertions trait includes the following syntax for that purpose:
assertDoesNotCompile("val a: String = \"a string")
Although assertDoesNotCompile is implemented with a macro that determines at compile time whether
the snippet of code represented by the passed string doesn't compile, errors (i.e.,
snippets of code that do compile) are reported as test failures at runtime.
Note that the difference between assertTypeError and assertDoesNotCompile is
that assertDoesNotCompile will succeed if the given code does not compile for any reason,
whereas assertTypeError will only succeed if the given code does not compile because of
a type error. If the given code does not compile because of a syntax error, for example, assertDoesNotCompile
will return normally but assertTypeError will throw a TestFailedException.
the snippet of code that should not type check
Assert that the value passed as expected equals the value passed as actual.
Assert that the value passed as expected equals the value passed as actual.
If the actual value equals the expected value
(as determined by ==), assertResult returns
normally. Else, assertResult throws a
TestFailedException whose detail message includes the expected and actual values.
the expected value
the actual value, which should equal the passed expected value
TestFailedException if the passed actual value does not equal the passed expected value.
Assert that the value passed as expected equals the value passed as actual.
Assert that the value passed as expected equals the value passed as actual.
If the actual equals the expected
(as determined by ==), assertResult returns
normally. Else, if actual is not equal to expected, assertResult throws a
TestFailedException whose detail message includes the expected and actual values, as well as the String
obtained by invoking toString on the passed clue.
the expected value
An object whose toString method returns a message to include in a failure report.
the actual value, which should equal the passed expected value
TestFailedException if the passed actual value does not equal the passed expected value.
Asserts that a given string snippet of code does not pass the Scala type checker, failing if the given snippet does not pass the Scala parser.
Asserts that a given string snippet of code does not pass the Scala type checker, failing if the given snippet does not pass the Scala parser.
Often when creating libraries you may wish to ensure that certain arrangements of code that
represent potential “user errors” do not compile, so that your library is more error resistant.
ScalaTest's Assertions trait includes the following syntax for that purpose:
assertTypeError("val a: String = 1")
Although assertTypeError is implemented with a macro that determines at compile time whether
the snippet of code represented by the passed string type checks, errors (i.e.,
snippets of code that do type check) are reported as test failures at runtime.
Note that the difference between assertTypeError and assertDoesNotCompile is
that assertDoesNotCompile will succeed if the given code does not compile for any reason,
whereas assertTypeError will only succeed if the given code does not compile because of
a type error. If the given code does not compile because of a syntax error, for example, assertDoesNotCompile
will return normally but assertTypeError will throw a TestFailedException.
the snippet of code that should not type check
Helper instance used by code generated by macro assertion.
Helper instance used by code generated by macro assertion.
Assume that a boolean condition, described in String
message, is true.
Assume that a boolean condition, described in String
message, is true.
If the condition is true, this method returns normally.
Else, it throws TestCanceledException with a helpful error message
appended with String obtained by invoking toString on the
specified clue as the exception's detail message.
This method is implemented in terms of a Scala macro that will generate a more helpful error message for expressions of this form:
At this time, any other form of expression will just get a TestCanceledException with message saying the given
expression was false. In the future, we will enhance this macro to give helpful error messages in more situations.
In ScalaTest 2.0, however, this behavior was sufficient to allow the === that returns Boolean
to be the default in tests. This makes === consistent between tests and production
code.
the boolean condition to assume
An objects whose toString method returns a message to include in a failure report.
NullArgumentException if message is null.
TestCanceledException if the condition is false.
Assume that a boolean condition is true.
Assume that a boolean condition is true.
If the condition is true, this method returns normally.
Else, it throws TestCanceledException.
This method is implemented in terms of a Scala macro that will generate a more helpful error message for expressions of this form:
At this time, any other form of expression will just get a TestCanceledException with message saying the given
expression was false. In the future, we will enhance this macro to give helpful error messages in more situations.
In ScalaTest 2.0, however, this behavior was sufficient to allow the === that returns Boolean
to be the default in tests. This makes === consistent between tests and production
code.
the boolean condition to assume
TestCanceledException if the condition is false.
Supports shared test registration in path.FunSpecs.
Supports shared test registration in path.FunSpecs.
This field supports syntax such as the following:
it should behave like nonFullStack(stackWithOneItem)
^
For more information and examples of the use of <cod>behave, see the
Shared tests section in the main documentation for sister
trait org.scalatest.FunSpec.
Throws TestCanceledException, with the passed
Throwable cause, to indicate a test failed.
Throws TestCanceledException, with the passed
Throwable cause, to indicate a test failed.
The getMessage method of the thrown TestCanceledException
will return cause.toString.
a Throwable that indicates the cause of the cancellation.
NullArgumentException if cause is null
Throws TestCanceledException, with the passed
String message as the exception's detail
message and Throwable cause, to indicate a test failed.
Throws TestCanceledException, with the passed
String message as the exception's detail
message and Throwable cause, to indicate a test failed.
A message describing the failure.
A Throwable that indicates the cause of the failure.
NullArgumentException if message or cause is null
Throws TestCanceledException, with the passed
String message as the exception's detail
message, to indicate a test was canceled.
Throws TestCanceledException, with the passed
String message as the exception's detail
message, to indicate a test was canceled.
A message describing the cancellation.
NullArgumentException if message is null
Throws TestCanceledException to indicate a test was canceled.
Throws TestCanceledException to indicate a test was canceled.
Describe a “subject” being specified and tested by the passed function value.
Describe a “subject” being specified and tested by the passed function value. The
passed function value may contain more describers (defined with describe) and/or tests
(defined with it).
This class's implementation of this method will decide whether to
register the description text and invoke the passed function
based on whether or not this is part of the current "test path." For the details on this process, see
the How it executes section of the main documentation for trait
org.scalatest.path.FunSpec.
Executes this Suite, printing results to the standard output.
Executes this Suite, printing results to the standard output.
This method, which simply invokes the other overloaded form of execute with default parameter values,
is intended for use only as a mini-DSL for the Scala interpreter. It allows you to execute a Suite in the
interpreter with a minimum of finger typing:
scala> new SetSpec execute An empty Set - should have size 0 - should produce NoSuchElementException when head is invoked !!! IGNORED !!!
If you do ever want to invoke execute outside the Scala interpreter, it is best style to invoke it with
empty parens to indicate it has a side effect, like this:
// Use empty parens form in regular code (outside the Scala interpreter) (new ExampleSuite).execute()
Executes one or more tests in this Suite, printing results to the standard output.
Executes one or more tests in this Suite, printing results to the standard output.
This method invokes run on itself, passing in values that can be configured via the parameters to this
method, all of which have default values. This behavior is convenient when working with ScalaTest in the Scala interpreter.
Here's a summary of this method's parameters and how you can use them:
The testName parameter
If you leave testName at its default value (of null), this method will pass None to
the testName parameter of run, and as a result all the tests in this suite will be executed. If you
specify a testName, this method will pass Some(testName) to run, and only that test
will be run. Thus to run all tests in a suite from the Scala interpreter, you can write:
scala> new ExampleSuite execute
(The above syntax actually invokes the overloaded parameterless form of execute, which calls this form with its default parameter values.)
To run just the test named "my favorite test" in a suite from the Scala interpreter, you would write:
scala> new ExampleSuite execute ("my favorite test")
Or:
scala> new ExampleSuite execute (testName = "my favorite test")
The configMap parameter
If you provide a value for the configMap parameter, this method will pass it to run. If not, the default value
of an empty Map will be passed. For more information on how to use a config map to configure your test suites, see
the config map section in the main documentation for this trait. Here's an example in which you configure
a run with the name of an input file:
scala> new ExampleSuite execute (configMap = Map("inputFileName" -> "in.txt")
The color parameter
If you leave the color parameter unspecified, this method will configure the reporter it passes to run to print
to the standard output in color (via ansi escape characters). If you don't want color output, specify false for color, like this:
scala> new ExampleSuite execute (color = false)
The durations parameter
If you leave the durations parameter unspecified, this method will configure the reporter it passes to run to
not print durations for tests and suites to the standard output. If you want durations printed, specify true for durations,
like this:
scala> new ExampleSuite execute (durations = true)
The shortstacks and fullstacks parameters
If you leave both the shortstacks and fullstacks parameters unspecified, this method will configure the reporter
it passes to run to not print stack traces for failed tests if it has a stack depth that identifies the offending
line of test code. If you prefer a short stack trace (10 to 15 stack frames) to be printed with any test failure, specify true for
shortstacks:
scala> new ExampleSuite execute (shortstacks = true)
For full stack traces, set fullstacks to true:
scala> new ExampleSuite execute (fullstacks = true)
If you specify true for both shortstacks and fullstacks, you'll get full stack traces.
The stats parameter
If you leave the stats parameter unspecified, this method will not fire RunStarting and either RunCompleted
or RunAborted events to the reporter it passes to run.
If you specify true for stats, this method will fire the run events to the reporter, and the reporter will print the
expected test count before the run, and various statistics after, including the number of suites completed and number of tests that
succeeded, failed, were ignored or marked pending. Here's how you get the stats:
scala> new ExampleSuite execute (stats = true)
To summarize, this method will pass to run:
testName - None if this method's testName parameter is left at its default value of null, else Some(testName).reporter - a reporter that prints to the standard outputstopper - a Stopper whose apply method always returns falsefilter - a Filter constructed with None for tagsToInclude and Set()
for tagsToExcludeconfigMap - the configMap passed to this methoddistributor - Nonetracker - a new TrackerNote: In ScalaTest, the terms "execute" and "run" basically mean the same thing and
can be used interchangably. The reason this method isn't named run is that it takes advantage of
default arguments, and you can't mix overloaded methods and default arguments in Scala. (If named run,
this method would have the same name but different arguments than the main run method that
takes seven arguments. Thus it would overload and couldn't be used with default argument values.)
Design note: This method has two "features" that may seem unidiomatic. First, the default value of testName is null.
Normally in Scala the type of testName would be Option[String] and the default value would
be None, as it is in this trait's run method. The null value is used here for two reasons. First, in
ScalaTest 1.5, execute was changed from four overloaded methods to one method with default values, taking advantage of
the default and named parameters feature introduced in Scala 2.8.
To not break existing source code, testName needed to have type String, as it did in two of the overloaded
execute methods prior to 1.5. The other reason is that execute has always been designed to be called primarily
from an interpeter environment, such as the Scala REPL (Read-Evaluate-Print-Loop). In an interpreter environment, minimizing keystrokes is king.
A String type with a null default value lets users type suite.execute("my test name") rather than
suite.execute(Some("my test name")), saving several keystrokes.
The second non-idiomatic feature is that shortstacks and fullstacks are all lower case rather than
camel case. This is done to be consistent with the Shell, which also uses those forms. The reason
lower case is used in the Shell is to save keystrokes in an interpreter environment. Most Unix commands, for
example, are all lower case, making them easier and quicker to type. In the ScalaTest
Shell, methods like shortstacks, fullstacks, and nostats, etc., are
designed to be all lower case so they feel more like shell commands than methods.
the name of one test to run.
a Map of key-value pairs that can be used by the executing Suite of tests.
a boolean that configures whether output is printed in color
a boolean that configures whether test and suite durations are printed to the standard output
a boolean that configures whether short stack traces should be printed for test failures
a boolean that configures whether full stack traces should be printed for test failures
a boolean that configures whether test and suite statistics are printed to the standard output
IllegalArgumentException if testName is defined, but no test with the specified test name
exists in this Suite
NullArgumentException if the passed configMap parameter is null.
The total number of tests that are expected to run when this path.FunSpec's run method
is invoked.
The total number of tests that are expected to run when this path.FunSpec's run method
is invoked.
This trait's implementation of this method will first ensure that the results of all tests, each run its its own instance executing only the path to the test, are registered. For details on this process see the How it executes section in the main documentation for this trait.
This trait's implementation of this method returns the size of the testNames List, minus
the number of tests marked as ignored as well as any tests excluded by the passed Filter.
This trait's implementation of this method is marked as final. For insight onto why, see the Shared fixtures section in the main documentation for this trait.
a Filter with which to filter tests to count based on their tags
Throws TestFailedException, with the passed
Throwable cause, to indicate a test failed.
Throws TestFailedException, with the passed
Throwable cause, to indicate a test failed.
The getMessage method of the thrown TestFailedException
will return cause.toString.
a Throwable that indicates the cause of the failure.
NullArgumentException if cause is null
Throws TestFailedException, with the passed
String message as the exception's detail
message and Throwable cause, to indicate a test failed.
Throws TestFailedException, with the passed
String message as the exception's detail
message and Throwable cause, to indicate a test failed.
A message describing the failure.
A Throwable that indicates the cause of the failure.
NullArgumentException if message or cause is null
Throws TestFailedException, with the passed
String message as the exception's detail
message, to indicate a test failed.
Throws TestFailedException, with the passed
String message as the exception's detail
message, to indicate a test failed.
A message describing the failure.
NullArgumentException if message is null
Throws TestFailedException to indicate a test failed.
Throws TestFailedException to indicate a test failed.
Supports registration of a test to ignore.
Supports registration of a test to ignore.
For more information and examples of this method's use, see the
Ignored tests section in the main documentation for sister
trait org.scalatest.FunSpec. Note that a separate instance will be created for an ignored test,
and the path to the ignored test will be executed in that instance, but the test function itself will not
be executed. Instead, a TestIgnored event will be fired.
the specification text, which will be combined with the descText of any surrounding describers to form the test name
the optional list of tags for this test
the test function
DuplicateTestNameException if a test with the same name has been registered previously
NullArgumentException if specText or any passed test tag is null
TestRegistrationClosedException if invoked after run has been invoked on this suite
Returns an Informer that during test execution will forward strings (and other objects) passed to its
apply method to the current reporter.
Returns an Informer that during test execution will forward strings (and other objects) passed to its
apply method to the current reporter. If invoked in a constructor (including within a test, since
those are invoked during construction in a path.FunSpec, it
will register the passed string for forwarding later when run is invoked. If invoked from inside a test function,
it will record the information and forward it to the current reporter only after the test completed, as recordedEvents
of the test completed event, such as TestSucceeded. If invoked at any other time, it will print to the standard output.
This method can be called safely by any thread.
Intercept and return an exception that's expected to be thrown by the passed function value.
Intercept and return an exception that's expected to
be thrown by the passed function value. The thrown exception must be an instance of the
type specified by the type parameter of this method. This method invokes the passed
function. If the function throws an exception that's an instance of the specified type,
this method returns that exception. Else, whether the passed function returns normally
or completes abruptly with a different exception, this method throws TestFailedException.
Note that the type specified as this method's type parameter may represent any subtype of
AnyRef, not just Throwable or one of its subclasses. In
Scala, exceptions can be caught based on traits they implement, so it may at times make sense
to specify a trait that the intercepted exception's class must mix in. If a class instance is
passed for a type that could not possibly be used to catch an exception (such as String,
for example), this method will complete abruptly with a TestFailedException.
the function value that should throw the expected exception
an implicit ClassTag representing the type of the specified
type parameter.
the intercepted exception, if it is of the expected type
TestFailedException if the passed function does not complete abruptly with an exception
that's an instance of the specified type
passed expected value.
Supports test (and shared test) registration in FunSpecs.
Supports test (and shared test) registration in FunSpecs.
This field supports syntax such as the following:
it("should be empty")
^
class="stExamples" it should behave like nonFullStack(stackWithOneItem) ^
For more information and examples of the use of the it field, see the main documentation for this trait.
Returns a Documenter that during test execution will forward strings (and other objects) passed to its
apply method to the current reporter.
Returns a Documenter that during test execution will forward strings (and other objects) passed to its
apply method to the current reporter. If invoked in a constructor (including within a test, since
those are invoked during construction in a path.FunSpec, it
will register the passed string for forwarding later when run is invoked. If invoked from inside a test function,
it will record the information and forward it to the current reporter only after the test completed, as recordedEvents
of the test completed event, such as TestSucceeded. If invoked at any other time, it will print to the standard output.
This method can be called safely by any thread.
Returns an empty list.
Returns an empty list.
This lifecycle method is unused by this trait. If invoked, it will return an empty list, because
nested suites are not allowed in a path.FunSpec. Because
a path.FunSpec executes tests eagerly at construction time, registering the results of
those test runs and reporting them later, the order of nested suites versus test runs would be different
in a org.scalatest.path.FunSpec than in an org.scalatest.FunSpec. In an
org.scalatest.FunSpec, nested suites are executed then tests are executed. In an
org.scalatest.path.FunSpec it would be the opposite. To make the code easy to reason about,
therefore, this is just not allowed. If you want to add nested suites to a path.FunSpec, you can
instead wrap them all in a Suites or
Specs object and put them in whatever order
you wish.
This trait's implementation of this method is marked as final. For insight onto why, see the Shared fixtures section in the main documentation for this trait.
Construct a new instance of this Suite.
Construct a new instance of this Suite.
This trait's implementation of runTests invokes this method to create
a new instance of this Suite for each test. This trait's implementation
of this method uses reflection to call this.getClass.newInstance. This
approach will succeed only if this Suite's class has a public, no-arg
constructor. In most cases this is likely to be true, because to be instantiated
by ScalaTest's Runner a Suite needs a public, no-arg
constructor. However, this will not be true of any Suite defined as
an inner class of another class or trait, because every constructor of an inner
class type takes a reference to the enclosing instance. In such cases, and in
cases where a Suite class is explicitly defined without a public,
no-arg constructor, you will need to override this method to construct a new
instance of the Suite in some other way.
Here's an example of how you could override newInstance to construct
a new instance of an inner class:
import org.scalatest.Suite
class Outer {
class InnerSuite extends Suite with OneInstancePerTest {
def testOne() {}
def testTwo() {}
override def newInstance = new InnerSuite
}
}
Returns a Notifier that during test execution will forward strings passed to its
apply method to the current reporter.
Returns a Notifier that during test execution will forward strings passed to its
apply method to the current reporter. If invoked in a constructor, it
will register the passed string for forwarding later during test execution. If invoked while this
path.FunSpec is being executed, such as from inside a test function, it will forward the information to
the current reporter immediately. If invoked at any other time, it will
print to the standard output. This method can be called safely by any thread.
Throws TestPendingException to indicate a test is pending.
Throws TestPendingException to indicate a test is pending.
A pending test is one that has been given a name but is not yet implemented. The purpose of pending tests is to facilitate a style of testing in which documentation of behavior is sketched out before tests are written to verify that behavior (and often, the before the behavior of the system being tested is itself implemented). Such sketches form a kind of specification of what tests and functionality to implement later.
To support this style of testing, a test can be given a name that specifies one
bit of behavior required by the system being tested. The test can also include some code that
sends more information about the behavior to the reporter when the tests run. At the end of the test,
it can call method pending, which will cause it to complete abruptly with TestPendingException.
Because tests in ScalaTest can be designated as pending with TestPendingException, both the test name and any information
sent to the reporter when running the test can appear in the report of a test run. (In other words,
the code of a pending test is executed just like any other test.) However, because the test completes abruptly
with TestPendingException, the test will be reported as pending, to indicate
the actual test, and possibly the functionality it is intended to test, has not yet been implemented.
Note: This method always completes abruptly with a TestPendingException. Thus it always has a side
effect. Methods with side effects are usually invoked with parentheses, as in pending(). This
method is defined as a parameterless method, in flagrant contradiction to recommended Scala style, because it
forms a kind of DSL for pending tests. It enables tests in suites such as FunSuite or FunSpec
to be denoted by placing "(pending)" after the test name, as in:
test("that style rules are not laws") (pending)
Readers of the code see "pending" in parentheses, which looks like a little note attached to the test name to indicate
it is pending. Whereas "(pending()) looks more like a method call, "(pending)" lets readers
stay at a higher level, forgetting how it is implemented and just focusing on the intent of the programmer who wrote the code.
Execute the passed block of code, and if it completes abruptly, throw TestPendingException, else
throw TestFailedException.
Execute the passed block of code, and if it completes abruptly, throw TestPendingException, else
throw TestFailedException.
This method can be used to temporarily change a failing test into a pending test in such a way that it will
automatically turn back into a failing test once the problem originally causing the test to fail has been fixed.
At that point, you need only remove the pendingUntilFixed call. In other words, a
pendingUntilFixed surrounding a block of code that isn't broken is treated as a test failure.
The motivation for this behavior is to encourage people to remove pendingUntilFixed calls when
there are no longer needed.
This method facilitates a style of testing in which tests are written before the code they test. Sometimes you may
encounter a test failure that requires more functionality than you want to tackle without writing more tests. In this
case you can mark the bit of test code causing the failure with pendingUntilFixed. You can then write more
tests and functionality that eventually will get your production code to a point where the original test won't fail anymore.
At this point the code block marked with pendingUntilFixed will no longer throw an exception (because the
problem has been fixed). This will in turn cause pendingUntilFixed to throw TestFailedException
with a detail message explaining you need to go back and remove the pendingUntilFixed call as the problem orginally
causing your test code to fail has been fixed.
a block of code, which if it completes abruptly, should trigger a TestPendingException
TestPendingException if the passed block of code completes abruptly with an Exception or AssertionError
The fully qualified class name of the rerunner to rerun this suite.
The fully qualified class name of the rerunner to rerun this suite. This implementation will look at this.getClass and see if it is either an accessible Suite, or it has a WrapWith annotation. If so, it returns the fully qualified class name wrapped in a Some, or else it returns None.
Runs this path.FunSpec, reporting test results that were registered when the tests
were run, each during the construction of its own instance.
Runs this path.FunSpec, reporting test results that were registered when the tests
were run, each during the construction of its own instance.
This trait's implementation of this method will first ensure that the results of all tests, each run its its own instance executing only the path to the test, are registered. For details on this process see the How it executes section in the main documentation for this trait.
If testName is None, this trait's implementation of this method
will report the registered results for all tests except any excluded by the passed Filter.
If testName is defined, it will report the results of only that named test. Because a
path.FunSpec is not allowed to contain nested suites, this trait's implementation of
this method does not call runNestedSuites.
This trait's implementation of this method is marked as final. For insight onto why, see the Shared fixtures section in the main documentation for this trait.
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.
the Args for this run
a Status object that indicates when all tests and nested suites started by this method have completed, and whether or not a failure occurred.
IllegalArgumentException if testName is defined, but no test with the specified test name
exists in this Suite
NullArgumentException if any passed parameter is null.
This lifecycle method is unused by this trait, and is implemented to do nothing.
This lifecycle method is unused by this trait, and is implemented to do nothing. If invoked, it will just return immediately.
Nested suites are not allowed in a path.FunSpec. Because
a path.FunSpec executes tests eagerly at construction time, registering the results of
those test runs and reporting them later, the order of nested suites versus test runs would be different
in a org.scalatest.path.FunSpec than in an org.scalatest.FunSpec. In an
org.scalatest.FunSpec, nested suites are executed then tests are executed. In an
org.scalatest.path.FunSpec it would be the opposite. To make the code easy to reason about,
therefore, this is just not allowed. If you want to add nested suites to a path.FunSpec, you can
instead wrap them all in a Suites or
Specs object and put them in whatever order
you wish.
This trait's implementation of this method is marked as final. For insight onto why, see the Shared fixtures section in the main documentation for this trait.
the Args for this run
a Status object that indicates when all nested suites started by this method have completed, and whether or not a failure occurred.
Runs a test.
Runs a test.
This trait's implementation of this method will first ensure that the results of all tests, each run its its own instance executing only the path to the test, are registered. For details on this process see the How it executes section in the main documentation for this trait.
This trait's implementation reports the test results registered with the name specified by
testName. Each test's name is a concatenation of the text of all describers surrounding a test,
from outside in, and the test's spec text, with one space placed between each item. (See the documentation
for testNames for an example.)
This trait's implementation of this method is marked as final. For insight onto why, see the Shared fixtures section in the main documentation for this trait.
the name of one test to execute.
the Args for this run
a Status object that indicates when the test started by this method has completed, and whether or not it failed .@param reporter the Reporter to which results will be reported
NullArgumentException if any of testName, reporter, stopper, or configMap
is null.
This lifecycle method is unused by this trait, and will complete abruptly with
UnsupportedOperationException if invoked.
This lifecycle method is unused by this trait, and will complete abruptly with
UnsupportedOperationException if invoked.
This trait's implementation of this method is marked as final. For insight onto why, see the Shared fixtures section in the main documentation for this trait.
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.
the Args for this run
a Status object that indicates when all tests started by this method have completed, and whether or not a failure occurred.
Suite style name.
Suite style name.
A string ID for this Suite that is intended to be unique among all suites reported during a run.
A string ID for this Suite that is intended to be unique among all suites reported during a run.
This trait's
implementation of this method returns the fully qualified name of this object's class.
Each suite reported during a run will commonly be an instance of a different Suite class,
and in such cases, this default implementation of this method will suffice. However, in special cases
you may need to override this method to ensure it is unique for each reported suite. For example, if you write
a Suite subclass that reads in a file whose name is passed to its constructor and dynamically
creates a suite of tests based on the information in that file, you will likely need to override this method
in your Suite subclass, perhaps by appending the pathname of the file to the fully qualified class name.
That way if you run a suite of tests based on a directory full of these files, you'll have unique suite IDs for
each reported suite.
The suite ID is intended to be unique, because ScalaTest does not enforce that it is unique. If it is not unique, then you may not be able to uniquely identify a particular test of a particular suite. This ability is used, for example, to dynamically tag tests as having failed in the previous run when rerunning only failed tests.
this Suite object's ID.
A user-friendly suite name for this Suite.
A user-friendly suite name for this Suite.
This trait's
implementation of this method returns the simple name of this object's class. This
trait's implementation of runNestedSuites calls this method to obtain a
name for Reports to pass to the suiteStarting, suiteCompleted,
and suiteAborted methods of the Reporter.
this Suite object's suite name.
A Map whose keys are String tag names to which tests in this path.FreeSpec
belong, and values the Set of test names that belong to each tag.
A Map whose keys are String tag names to which tests in this path.FreeSpec
belong, and values the Set of test names that belong to each tag. If this path.FreeSpec
contains no tags, this method returns an empty Map.
This trait's implementation of this method will first ensure that the results of all tests, each run its its own instance executing only the path to the test, are registered. For details on this process see the How it executes section in the main documentation for this trait.
This trait's implementation returns tags that were passed as strings contained in Tag objects passed
to methods it and ignore.
In addition, this trait's implementation will also auto-tag tests with class level annotations. For example, if you annotate @Ignore at the class level, all test methods in the class will be auto-annotated with @Ignore.
This trait's implementation of this method is marked as final. For insight onto why, see the Shared fixtures section in the main documentation for this trait.
Provides a TestData instance for the passed test name, given the passed config map.
Provides a TestData instance for the passed test name, given the passed config map.
This method is used to obtain a TestData instance to pass to withFixture(NoArgTest)
and withFixture(OneArgTest) and the beforeEach and afterEach methods
of trait BeforeAndAfterEach.
the name of the test for which to return a TestData instance
the config map to include in the returned TestData
a TestData instance for the specified test, which includes the specified config map
An immutable Set of test names.
An immutable Set of test names. If this FunSpec contains no tests, this method returns an
empty Set.
This trait's implementation of this method will first ensure that the results of all tests, each run its its own instance executing only the path to the test, are registered. For details on this process see the How it executes section in the main documentation for this trait.
This trait's implementation of this method will return a set that contains the names of all registered tests. The set's
iterator will return those names in the order in which the tests were registered. Each test's name is composed
of the concatenation of the text of each surrounding describer, in order from outside in, and the text of the
example itself, with all components separated by a space. For example, consider this FunSpec:
import org.scalatest.path
class StackSpec extends path.FunSpec {
describe("A Stack") {
describe("when not empty") {
"must allow me to pop" in {}
}
describe("when not full") {
"must allow me to push" in {}
}
}
}
Invoking testNames on this FunSpec will yield a set that contains the following
two test name strings:
"A Stack when not empty must allow me to pop" "A Stack when not full must allow me to push"
This trait's implementation of this method is marked as final. For insight onto why, see the Shared fixtures section in the main documentation for this trait.
Supports test (and shared test) registration in FunSpecs.
Supports test (and shared test) registration in FunSpecs.
This field supports syntax such as the following:
it("should be empty")
^
class="stExamples" it should behave like nonFullStack(stackWithOneItem) ^
For more information and examples of the use of the it field, see the main documentation for this trait.
Trap and return any thrown exception that would normally cause a ScalaTest test to fail, or create and return a new RuntimeException
indicating no exception is thrown.
Trap and return any thrown exception that would normally cause a ScalaTest test to fail, or create and return a new RuntimeException
indicating no exception is thrown.
This method is intended to be used in the Scala interpreter to eliminate large stack traces when trying out ScalaTest assertions and
matcher expressions. It is not intended to be used in regular test code. If you want to ensure that a bit of code throws an expected
exception, use intercept, not trap. Here's an example interpreter session without trap:
scala> import org.scalatest._ import org.scalatest._ scala> import Matchers._ import Matchers._ scala> val x = 12 a: Int = 12 scala> x shouldEqual 13 org.scalatest.exceptions.TestFailedException: 12 did not equal 13 at org.scalatest.Assertions$class.newAssertionFailedException(Assertions.scala:449) at org.scalatest.Assertions$.newAssertionFailedException(Assertions.scala:1203) at org.scalatest.Assertions$AssertionsHelper.macroAssertTrue(Assertions.scala:417) at .<init>(<console>:15) at .<clinit>(<console>) at .<init>(<console>:7) at .<clinit>(<console>) at $print(<console>) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.call(IMain.scala:731) at scala.tools.nsc.interpreter.IMain$Request.loadAndRun(IMain.scala:980) at scala.tools.nsc.interpreter.IMain.loadAndRunReq$1(IMain.scala:570) at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:601) at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:565) at scala.tools.nsc.interpreter.ILoop.reallyInterpret$1(ILoop.scala:745) at scala.tools.nsc.interpreter.ILoop.interpretStartingWith(ILoop.scala:790) at scala.tools.nsc.interpreter.ILoop.command(ILoop.scala:702) at scala.tools.nsc.interpreter.ILoop.processLine$1(ILoop.scala:566) at scala.tools.nsc.interpreter.ILoop.innerLoop$1(ILoop.scala:573) at scala.tools.nsc.interpreter.ILoop.loop(ILoop.scala:576) at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply$mcZ$sp(ILoop.scala:867) at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:822) at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:822) at scala.tools.nsc.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:135) at scala.tools.nsc.interpreter.ILoop.process(ILoop.scala:822) at scala.tools.nsc.MainGenericRunner.runTarget$1(MainGenericRunner.scala:83) at scala.tools.nsc.MainGenericRunner.process(MainGenericRunner.scala:96) at scala.tools.nsc.MainGenericRunner$.main(MainGenericRunner.scala:105) at scala.tools.nsc.MainGenericRunner.main(MainGenericRunner.scala)
That's a pretty tall stack trace. Here's what it looks like when you use trap:
scala> trap { x shouldEqual 13 }
res1: Throwable = org.scalatest.exceptions.TestFailedException: 12 did not equal 13
Much less clutter. Bear in mind, however, that if no exception is thrown by the
passed block of code, the trap method will create a new NormalResult
(a subclass of Throwable made for this purpose only) and return that. If the result was the Unit value, it
will simply say that no exception was thrown:
scala> trap { x shouldEqual 12 }
res2: Throwable = No exception was thrown.
If the passed block of code results in a value other than Unit, the NormalResult's toString will print the value:
scala> trap { "Dude!" }
res3: Throwable = No exception was thrown. Instead, result was: "Dude!"
Although you can access the result value from the NormalResult, its type is Any and therefore not
very convenient to use. It is not intended that trap be used in test code. The sole intended use case for trap is decluttering
Scala interpreter sessions by eliminating stack traces when executing assertion and matcher expressions.
Executes the block of code passed as the second parameter, and, if it
completes abruptly with a ModifiableMessage exception,
prepends the "clue" string passed as the first parameter to the beginning of the detail message
of that thrown exception, then rethrows it.
Executes the block of code passed as the second parameter, and, if it
completes abruptly with a ModifiableMessage exception,
prepends the "clue" string passed as the first parameter to the beginning of the detail message
of that thrown exception, then rethrows it. If clue does not end in a white space
character, one space will be added
between it and the existing detail message (unless the detail message is
not defined).
This method allows you to add more information about what went wrong that will be reported when a test fails. Here's an example:
withClue("(Employee's name was: " + employee.name + ")") {
intercept[IllegalArgumentException] {
employee.getTask(-1)
}
}
If an invocation of intercept completed abruptly with an exception, the resulting message would be something like:
(Employee's name was Bob Jones) Expected IllegalArgumentException to be thrown, but no exception was thrown
NullArgumentException if the passed clue is null
This lifecycle method is unused by this trait, and will complete abruptly with
UnsupportedOperationException if invoked.
This lifecycle method is unused by this trait, and will complete abruptly with
UnsupportedOperationException if invoked.
This trait's implementation of this method is marked as final. For insight onto why, see the Shared fixtures section in the main documentation for this trait.
the no-arg test function to run with a fixture
Implementation trait for class
path.FunSpec, which is a sister class toorg.scalatest.FunSpecthat isolates tests by running each test in its own instance of the test class, and for each test, only executing the path leading to that test.path.FunSpecis a class, not a trait, to minimize compile time given there is a slight compiler overhead to mixing in traits compared to extending classes. If you need to mix the behavior ofpath.FunSpecinto some other class, you can use this trait instead, because classpath.FunSpecdoes nothing more than extend this trait and add a nicetoStringimplementation.See the documentation of the class for a detailed overview of
path.FunSpec.