abstract class StackDepthException extends RuntimeException with StackDepth
Exception class that encapsulates information about the stack depth at which the line of code that failed resides, so that information can be presented to the user that makes it quick to find the failing line of code. (In other words, the user need not scan through the stack trace to find the correct filename and line number of the problem code.) Having a stack depth is more useful in a testing environment in which test failures are implemented as thrown exceptions, as is the case in ScalaTest's built-in suite traits.
- Source
- StackDepthException.scala
- Exceptions thrown
NullArgumentException
if eithermessageFun
,cause
orfailedCodeStackDepthFun
isnull
, orSome(null)
.
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Instance Constructors
- new StackDepthException(message: Option[String], cause: Option[Throwable], failedCodeStackDepth: Int)
Constructs a
StackDepthException
with an optional pre-determinedmessage
, optionalcause
, and andfailedCodeStackDepth
.Constructs a
StackDepthException
with an optional pre-determinedmessage
, optionalcause
, and andfailedCodeStackDepth
. (This was the primary constructor form prior to ScalaTest 1.5.)- message
an optional detail message for this
StackDepthException
.- cause
an optional cause, the
Throwable
that caused thisStackDepthException
to be thrown.- failedCodeStackDepth
the depth in the stack trace of this exception at which the line of test code that failed resides.
- Exceptions thrown
NullArgumentException
if eithermessage
ofcause
isnull
, orSome(null)
.
- new StackDepthException(message: Option[String], cause: Option[Throwable], failedCodeStackDepthFun: (StackDepthException) => Int)
Constructs a
StackDepthException
with an optional pre-determinedmessage
, optional cause, and afailedCodeStackDepth
function.Constructs a
StackDepthException
with an optional pre-determinedmessage
, optional cause, and afailedCodeStackDepth
function.- message
an optional detail message for this
StackDepthException
.- cause
an optional cause, the
Throwable
that caused thisStackDepthException
to be thrown.- failedCodeStackDepthFun
a function that return the depth in the stack trace of this exception at which the line of test code that failed resides.
- Exceptions thrown
NullArgumentException
if eithermessage
orcause
isnull
orSome(null)
, orfailedCodeStackDepthFun
isnull
.
- new StackDepthException(messageFun: (StackDepthException) => Option[String], cause: Option[Throwable], failedCodeStackDepthFun: (StackDepthException) => Int)
Constructs a
StackDepthException
with message function, optional cause, and afailedCodeStackDepth
function.Constructs a
StackDepthException
with message function, optional cause, and afailedCodeStackDepth
function.- messageFun
a function that produces an optional detail message for this
StackDepthException
.- cause
an optional cause, the
Throwable
that caused thisStackDepthException
to be thrown.- failedCodeStackDepthFun
a function that return the depth in the stack trace of this exception at which the line of test code that failed resides. .
- new StackDepthException(message: Option[String], cause: Option[Throwable], position: Position)
Constructs a
StackDepthException
with an optional pre-determinedmessage
, optional cause, and a source position.Constructs a
StackDepthException
with an optional pre-determinedmessage
, optional cause, and a source position.- message
an optional detail message for this
StackDepthException
.- cause
an optional cause, the
Throwable
that caused thisStackDepthException
to be thrown.- position
a source position. .
- new StackDepthException(messageFun: (StackDepthException) => Option[String], cause: Option[Throwable], posOrStackDepthFun: Either[Position, (StackDepthException) => Int])
- messageFun
a function that produces an optional detail message for this
StackDepthException
.- cause
an optional cause, the
Throwable
that caused thisStackDepthException
to be thrown.- posOrStackDepthFun
either a source position or a function that produces the depth in the stack trace of this exception at which the line of test code that failed resides.
- Exceptions thrown
NullArgumentException
if eithermessageFun
,cause
orfailedCodeStackDepthFun
isnull
, orSome(null)
.
Abstract Value Members
- abstract def severedAtStackDepth: Throwable with StackDepth
Returns an exception of the same class with
failedExceptionStackDepth
set to 0 and all frames above this stack depth severed off.Returns an exception of the same class with
failedExceptionStackDepth
set to 0 and all frames above this stack depth severed off. This can be useful when working with tools (such as IDEs) that do not directly support ScalaTest. (Tools that directly support ScalaTest can use the stack depth information delivered in the StackDepth exceptions.)- Definition Classes
- StackDepth
Concrete Value Members
- final def !=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def ##(): Int
- Definition Classes
- AnyRef → Any
- final def ==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def addSuppressed(arg0: Throwable): Unit
- Definition Classes
- Throwable
- final def asInstanceOf[T0]: T0
- Definition Classes
- Any
- def canEqual(other: Any): Boolean
Indicates whether this object can be equal to the passed object.
- val cause: Option[Throwable]
An optional cause, the
Throwable
that caused thisStackDepth
exception to be thrown.An optional cause, the
Throwable
that caused thisStackDepth
exception to be thrown.- Definition Classes
- StackDepthException → StackDepth
- def clone(): AnyRef
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.CloneNotSupportedException]) @native()
- final def eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- def equals(other: Any): Boolean
Indicates whether this object is equal to the passed object.
Indicates whether this object is equal to the passed object. If the passed object is a
StackDepthException
, equality requires equalmessage
,cause
, andfailedCodeStackDepth
fields, as well as equal return values ofgetStackTrace
.- Definition Classes
- StackDepthException → AnyRef → Any
- def failedCodeFileName: Option[String]
A string that provides the filename of the line of code that failed, suitable for presenting to a user, which is taken from this exception's
StackTraceElement
at the depth specified byfailedCodeStackDepth
.A string that provides the filename of the line of code that failed, suitable for presenting to a user, which is taken from this exception's
StackTraceElement
at the depth specified byfailedCodeStackDepth
.This is a
def
instead of aval
because exceptions are mutable: their stack trace can be changed after the exception is created. This is done, for example, by theSeveredStackTraces
trait.- returns
a string containing the filename that caused the failed test
- Definition Classes
- StackDepth
- def failedCodeFileNameAndLineNumberString: Option[String]
A string that provides the filename and line number of the line of code that failed, suitable for presenting to a user of the failing line.
A string that provides the filename and line number of the line of code that failed, suitable for presenting to a user of the failing line. It calls
failedCodeFileName
andfailedCodeLineNumber
to get the failing filename and line number.failedCodeFileName
andfailedCodeLineNumber
will fall back to exception stack trace whenPosition
is not avaiable, this is the reason it is adef
instead of aval
, because exceptions are mutable: their stack trace can be changed after the exception is created. This is done, for example, by theSeveredStackTraces
trait.- returns
a user-presentable string containing the filename and line number that caused the failed test
- Definition Classes
- StackDepth
- lazy val failedCodeFilePathname: Option[String]
A string that provides the full pathname of the source file containing the line of code that failed, suitable for presenting to a user.
A string that provides the full pathname of the source file containing the line of code that failed, suitable for presenting to a user.
- returns
a string containing the full pathname of the source file containing the line of code that caused this exception
- Definition Classes
- StackDepthException → StackDepth
- lazy val failedCodeFilePathnameAndLineNumberString: Option[String]
A string that provides the absolute filename and line number of the line of code that failed, suitable for presenting to a user of the failing line.
A string that provides the absolute filename and line number of the line of code that failed, suitable for presenting to a user of the failing line. It calls
failedCodeFilePathname
andfailedCodeLineNumber
to get the failing absolute filename and line number.- returns
a user-presentable string containing the absolute filename and line number that caused the failed test
- Definition Classes
- StackDepth
- def failedCodeLineNumber: Option[Int]
A string that provides the line number of the line of code that failed, suitable for presenting to a user, which is taken from this exception's
StackTraceElement
at the depth specified byfailedCodeStackDepth
.A string that provides the line number of the line of code that failed, suitable for presenting to a user, which is taken from this exception's
StackTraceElement
at the depth specified byfailedCodeStackDepth
.This is a
def
instead of aval
because exceptions are mutable: their stack trace can be changed after the exception is created. This is done, for example, by theSeveredStackTraces
trait.- returns
a string containing the line number that caused the failed test
- Definition Classes
- StackDepth
- lazy val failedCodeStackDepth: Int
The depth in the stack trace of this exception at which the line of test code that failed resides.
The depth in the stack trace of this exception at which the line of test code that failed resides.
One reason this is lazy is to delay any searching of the stack trace until it is actually needed. It will usually be needed, but not always. For example, exceptions thrown during a shrink phase of a failed property will often be
StackDepthException
s, but whosefailedCodeStackDepth
will never be used. Another reason is to remove the need to create a different exception before creating this one just for the purpose of searching through its stack trace for the proper stack depth. Still one more reason is to allow the message to contain information about the stack depth, such as the failed file name and line number.- Definition Classes
- StackDepthException → StackDepth
- def fillInStackTrace(): Throwable
- Definition Classes
- Throwable
- def finalize(): Unit
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.Throwable])
- def getCause(): Throwable
- Definition Classes
- Throwable
- final def getClass(): Class[_ <: AnyRef]
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
- def getLocalizedMessage(): String
- Definition Classes
- Throwable
- def getMessage(): String
Returns the detail message string of this
StackDepthException
.Returns the detail message string of this
StackDepthException
.- returns
the detail message string of this
StackDepthException
instance (which may benull
).
- Definition Classes
- StackDepthException → Throwable
- def getStackTrace(): Array[StackTraceElement]
- Definition Classes
- Throwable
- final def getSuppressed(): Array[Throwable]
- Definition Classes
- Throwable
- def hashCode(): Int
Returns a hash code value for this object.
Returns a hash code value for this object.
- Definition Classes
- StackDepthException → AnyRef → Any
- final def initCause(throwable: Throwable): Throwable
- Definition Classes
- StackDepthException → Throwable
- final def isInstanceOf[T0]: Boolean
- Definition Classes
- Any
- lazy val message: Option[String]
An optional detail message for this
StackDepth
exception.An optional detail message for this
StackDepth
exception.One reason this is lazy is to delay any searching of the stack trace until it is actually needed. It will usually be needed, but not always. For example, exceptions thrown during a shrink phase of a failed property will often be
StackDepthException
s, but whosemessage
will never be used. Another related reason is to remove the need to create a different exception before creating this one just for the purpose of searching through its stack trace for the proper stack depth. Still one more reason is to allow the message to contain information about the stack depth, such as the failed file name and line number.- Definition Classes
- StackDepthException → StackDepth
- val messageFun: (StackDepthException) => Option[String]
- final def ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- final def notify(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
- final def notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
- val position: Option[Position]
An optional source position describing the line of test code that caused this exception.
An optional source position describing the line of test code that caused this exception.
- Definition Classes
- StackDepthException → StackDepth
- def printStackTrace(arg0: PrintWriter): Unit
- Definition Classes
- Throwable
- def printStackTrace(arg0: PrintStream): Unit
- Definition Classes
- Throwable
- def printStackTrace(): Unit
- Definition Classes
- Throwable
- def setStackTrace(arg0: Array[StackTraceElement]): Unit
- Definition Classes
- Throwable
- final def synchronized[T0](arg0: => T0): T0
- Definition Classes
- AnyRef
- def toString(): String
- Definition Classes
- Throwable → AnyRef → Any
- final def wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long, arg1: Int): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException]) @native()