org.scalatest.Inspectors.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
import scala.collection.GenTraversable
import scala.annotation.tailrec
import scala.collection.GenSeq
import Suite.indentLines
import FailureMessages.decorateToStringValue
import enablers.Collecting
import scala.language.higherKinds
import enablers.InspectorAsserting
import org.scalactic._
/**
* Provides nestable inspector methods (or just inspectors) that enable assertions to be made about collections.
*
*
* For example, the forAll method enables you to state that something should be true about all elements of a collection, such
* as that all elements should be positive:
*
*
*
* scala> import org.scalatest._
* import org.scalatest._
*
* scala> import Assertions._
* import Assertions._
*
* scala> import Inspectors._
* import Inspectors._
*
* scala> val xs = List(1, 2, 3, 4, 5)
* xs: List[Int] = List(1, 2, 3, 4, 5)
*
* scala> forAll (xs) { x => assert(x > 0) }
*
*
*
* Or, with matchers:
*
*
*
* scala> import Matchers._
* import Matchers._
*
* scala> forAll (xs) { x => x should be > 0 }
*
*
*
* To make assertions about nested collections, you can nest the inspector method invocations.
* For example, given the following list of lists of Int:
*
*
*
* scala> val yss =
* | List(
* | List(1, 2, 3),
* | List(1, 2, 3),
* | List(1, 2, 3)
* | )
* yss: List[List[Int]] = List(List(1, 2, 3), List(1, 2, 3), List(1, 2, 3))
*
*
*
* You can assert that all Int elements in all nested lists are positive by nesting two forAll method invocations, like this:
*
*
*
* scala> forAll (yss) { ys =>
* | forAll (ys) { y => y should be > 0 }
* | }
*
*
*
* The full list of inspector methods are:
*
*
*
* forAll - succeeds if the assertion holds true for every elementforAtLeast - succeeds if the assertion holds true for at least the specified number of elementsforAtMost - succeeds if the assertion holds true for at most the specified number of elementsforBetween - succeeds if the assertion holds true for between the specified minimum and maximum number of elements, inclusiveforEvery - same as forAll, but lists all failing elements if it fails (whereas forAll just reports the first failing element)forExactly - succeeds if the assertion holds true for exactly the specified number of elements
*
*
* The error messages produced by inspector methods are designed to make sense no matter how deeply you nest the method invocations.
* Here's an example of a nested inspection that fails and the resulting error message:
*
*
*
* scala> forAll (yss) { ys =>
* | forAll (ys) { y => y should be < 2 }
* | }
* org.scalatest.exceptions.TestFailedException: forAll failed, because:
* at index 0, forAll failed, because:
* at index 1, 2 was not less than 2 (<console>:20)
* in List(1, 2, 3) (<console>:20)
* in List(List(1, 2, 3), List(1, 2, 3), List(1, 2, 3))
* at org.scalatest.InspectorsHelper$.forAll(Inspectors.scala:146)
* ...
*
*
*
* One way the error message is designed to help you understand the error is by using indentation that mimics the indentation of the
* source code (optimistically assuming the source will be nicely indented). The error message above indicates the outer forAll failed
* because its initial List (i.e., at index 0) failed
* the assertion, which was that all elements of that initial List[Int] at index 0 should be less than 2. This assertion failed because index 1 of
* that inner list contained the value 2, which was indeed “not less than 2.” The error message for the inner list is an indented line inside the error message
* for the outer list. The actual contents of each list are displayed at the end in inspector error messages, also indented appropriately. The actual contents
* are placed at the end so that for very large collections, the contents will not drown out and make it difficult to find the messages that describe
* actual causes of the failure.
*
*
*
* The forAll and forEvery methods are similar in that both succeed only if the assertion holds for all elements of the collection.
* They differ in that forAll will only report the first element encountered that failed the assertion, but forEvery will report all
* elements that fail the assertion. The tradeoff is that while forEvery gives more information, it may take longer to run because it must inspect every element
* of the collection. The forAll method can simply stop inspecting once it encounters the first failing element. Here's an example that
* shows the difference in the forAll and forEvery error messages:
*
*
*
* scala> forAll (xs) { x => x should be < 3 }
* org.scalatest.exceptions.TestFailedException: forAll failed, because:
* at index 2, 3 was not less than 3 (<console>:18)
* in List(1, 2, 3, 4, 5)
* at org.scalatest.InspectorsHelper$.forAll(Inspectors.scala:146)
* ...
*
* scala> forEvery (xs) { x => x should be < 3 }
* org.scalatest.exceptions.TestFailedException: forEvery failed, because:
* at index 2, 3 was not less than 3 (<console>:18),
* at index 3, 4 was not less than 3 (<console>:18),
* at index 4, 5 was not less than 3 (<console>:18)
* in List(1, 2, 3, 4, 5)
* at org.scalatest.InspectorsHelper$.forEvery(Inspectors.scala:226)
* ...
*
*
*
* Note that if you're using matchers, you can alternatively use inspector shorthands for writing non-nested
* inspections. Here's an example:
*
*
*
* scala> all (xs) should be > 3
* org.scalatest.exceptions.TestFailedException: 'all' inspection failed, because:
* at index 0, 1 was not greater than 3
* in List(1, 2, 3, 4, 5)
* at org.scalatest.InspectorsHelper$.forAll(Inspectors.scala:146)
*
*
*
* You can use Inspectors on any scala.collection.GenTraversable, java.util.Collection,
* java.util.Map (with Entry), Array, or String.
* Here are some examples:
*
*
*
* scala> import org.scalatest._
* import org.scalatest._
*
* scala> import Inspectors._
* import Inspectors._
*
* scala> import Matchers._
* import Matchers._
*
* scala> forAll (Array(1, 2, 3)) { e => e should be < 5 }
*
* scala> import collection.JavaConverters._
* import collection.JavaConverters._
*
* scala> val js = List(1, 2, 3).asJava
* js: java.util.List[Int] = [1, 2, 3]
*
* scala> forAll (js) { j => j should be < 5 }
*
* scala> val jmap = Map("a" -> 1, "b" -> 2).asJava
* jmap: java.util.Map[String,Int] = {a=1, b=2}
*
* scala> forAtLeast(1, jmap) { e => e shouldBe Entry("b", 2) }
*
* scala> forAtLeast(2, "hello, world!") { c => c shouldBe 'o' }
*
*/
trait Inspectors {
/**
* Ensure that all elements in a given collection pass the given inspection function, where "pass" means returning normally from the function (i.e.,
* without throwing an exception).
*
*
* The difference between forAll and forEvery is that
* forAll will stop on the first failure, while forEvery will continue to inspect all elements after the
* first failure (and report all failures).
*
*
* @param xs the collection of elements
* @param fun the inspection function
* @param collecting the implicit Collecting that can transform xs into a scala.collection.GenTraversable
* @tparam E the type of element in the collection
* @tparam C the type of collection
*
*/
def forAll[E, C[_], ASSERTION](xs: C[E])(fun: E => ASSERTION)(implicit collecting: Collecting[E, C[E]], asserting: InspectorAsserting[ASSERTION], prettifier: Prettifier, pos: source.Position): asserting.Result = {
asserting.forAll(collecting.genTraversableFrom(xs), xs, false, prettifier, pos)(fun)
}
// SKIP-SCALATESTJS-START
/**
* Ensure that all elements in a given java.util.Map pass the given inspection function, where "pass" means returning normally from the function (i.e.,
* without throwing an exception).
*
*
* The difference between forAll and forEvery is that
* forAll will stop on the first failure, while forEvery will continue to inspect all java.util.Map elements after the
* first failure (and report all failures).
*
*
* @param xs the java.util.Map
* @param fun the inspection function
* @param collecting the implicit Collecting that can transform xs into a scala.collection.GenTraversable
* @tparam K the type of key in the Java Map
* @tparam V the type of value in the Java Map
* @tparam JMAP subtype of java.util.Map
*
*/
def forAll[K, V, JMAP[k, v] <: java.util.Map[k, v], ASSERTION](xs: JMAP[K, V])(fun: org.scalatest.Entry[K, V] => ASSERTION)(implicit collecting: Collecting[org.scalatest.Entry[K, V], JMAP[K, V]], asserting: InspectorAsserting[ASSERTION], prettifier: Prettifier, pos: source.Position): asserting.Result = {
asserting.forAll(collecting.genTraversableFrom(xs), xs, false, prettifier, pos)(fun)
}
// SKIP-SCALATESTJS-END
/**
* Ensure that all characters in a given String pass the given inspection function, where "pass" means returning normally from the function (i.e.,
* without throwing an exception).
*
*
* The difference between forAll and forEvery is that
* forAll will stop on the first failure, while forEvery will continue to inspect all characters in the String after the
* first failure (and report all failures).
*
*
* @param xs the String
* @param fun the inspection function
* @param collecting the implicit Collecting that can transform xs into a scala.collection.GenTraversable
*
*/
def forAll[ASSERTION](xs: String)(fun: Char => ASSERTION)(implicit collecting: Collecting[Char, String], asserting: InspectorAsserting[ASSERTION], prettifier: Prettifier, pos: source.Position): asserting.Result = {
asserting.forAll(collecting.genTraversableFrom(xs), xs, false, prettifier, pos)(fun)
}
/**
* Ensure that at least min number of elements of a given collection pass the given inspection function.
*
* @param min the minimum number of elements that must pass the inspection function
* @param xs the collection of elements
* @param fun the inspection function
* @param collecting the implicit Collecting that can transform xs into a scala.collection.GenTraversable
* @tparam E the type of element in the collection
* @tparam C the type of collection
*
*/
def forAtLeast[E, C[_], ASSERTION](min: Int, xs: C[E])(fun: E => ASSERTION)(implicit collecting: Collecting[E, C[E]], asserting: InspectorAsserting[ASSERTION], prettifier: Prettifier, pos: source.Position): asserting.Result = {
asserting.forAtLeast(min, collecting.genTraversableFrom(xs), xs, false, prettifier, pos)(fun)
}
// SKIP-SCALATESTJS-START
/**
* Ensure that at least min number of elements in a given java.util.Map pass the given inspection function.
*
* @param min the minimum number of elements that must pass the inspection function
* @param xs the java.util.Map
* @param fun the inspection function
* @param collecting the implicit Collecting that can transform xs into a scala.collection.GenTraversable
* @tparam K the type of key in the java.util.Map
* @tparam V the type of value in the java.util.Map
* @tparam JMAP subtype of java.util.Map
*
*/
def forAtLeast[K, V, JMAP[k, v] <: java.util.Map[k, v], ASSERTION](min: Int, xs: JMAP[K, V])(fun: org.scalatest.Entry[K, V] => ASSERTION)(implicit collecting: Collecting[org.scalatest.Entry[K, V],JMAP[K, V]], asserting: InspectorAsserting[ASSERTION], prettifier: Prettifier, pos: source.Position): asserting.Result = {
asserting.forAtLeast(min, collecting.genTraversableFrom(xs), xs, false, prettifier, pos)(fun)
}
// SKIP-SCALATESTJS-END
/**
* Ensure that at least min number of characters in a given String pass the given inspection function.
*
* @param min the minimum number of characters in String that must pass the inspection function
* @param xs the String
* @param fun the inspection function
* @param collecting the implicit Collecting that can transform xs into a scala.collection.GenTraversable
*
*/
def forAtLeast[ASSERTION](min: Int, xs: String)(fun: Char => ASSERTION)(implicit collecting: Collecting[Char, String], asserting: InspectorAsserting[ASSERTION], prettifier: Prettifier, pos: source.Position): asserting.Result = {
asserting.forAtLeast(min, collecting.genTraversableFrom(xs), xs, false, prettifier, pos)(fun)
}
private def shouldIncludeIndex[T, R](xs: GenTraversable[T]) = xs.isInstanceOf[GenSeq[T]]
/**
* Ensure that at most max number of elements of a given collection pass the given inspection function.
*
* @param max the maximum number of elements that must pass the inspection function
* @param xs the collection of elements
* @param fun the inspection function
* @param collecting the implicit Collecting that can transform xs into a scala.collection.GenTraversable
* @tparam E the type of element in the collection
* @tparam C the type of collection
*/
def forAtMost[E, C[_], ASSERTION](max: Int, xs: C[E])(fun: E => ASSERTION)(implicit collecting: Collecting[E, C[E]], asserting: InspectorAsserting[ASSERTION], prettifier: Prettifier, pos: source.Position): asserting.Result = {
asserting.forAtMost(max, collecting.genTraversableFrom(xs), xs, false, prettifier, pos)(fun)
}
// SKIP-SCALATESTJS-START
/**
* Ensure that at most max number of elements in a given java.util.Map pass the given inspection function.
*
* @param max the maximum number of elements in the java.util.Map that must pass the inspection function
* @param xs the java.util.Map
* @param fun the inspection function
* @param collecting the implicit Collecting that can transform xs into a scala.collection.GenTraversable
* @tparam K the type of key in the java.util.Map
* @tparam V the type of value in the java.util.Map
* @tparam JMAP subtype of java.util.Map
*/
def forAtMost[K, V, JMAP[k, v] <: java.util.Map[k, v], ASSERTION](max: Int, xs: JMAP[K, V])(fun: org.scalatest.Entry[K, V] => ASSERTION)(implicit collecting: Collecting[org.scalatest.Entry[K, V], JMAP[K, V]], asserting: InspectorAsserting[ASSERTION], prettifier: Prettifier, pos: source.Position): asserting.Result = {
asserting.forAtMost(max, collecting.genTraversableFrom(xs), xs, false, prettifier, pos)(fun)
}
// SKIP-SCALATESTJS-END
/**
* Ensure that at most max number of characters in a given String pass the given inspection function.
*
* @param max the maximum number of characters in String that must pass the inspection function
* @param xs the String
* @param fun the inspection function
* @param collecting the implicit Collecting that can transform xs into a scala.collection.GenTraversable
*/
def forAtMost[ASSERTION](max: Int, xs: String)(fun: Char => ASSERTION)(implicit collecting: Collecting[Char, String], asserting: InspectorAsserting[ASSERTION], prettifier: Prettifier, pos: source.Position): asserting.Result = {
asserting.forAtMost(max, collecting.genTraversableFrom(xs), xs, false, prettifier, pos)(fun)
}
/**
* Ensure that exactly succeededCount number of elements of a given collection pass the given inspection function.
*
* @param succeededCount the number of elements that must pass the inspection function
* @param xs the collection of elements
* @param fun the inspection function
* @param collecting the implicit Collecting that can transform xs into a scala.collection.GenTraversable
* @tparam E the type of element in the collection
* @tparam C the type of collection
*/
def forExactly[E, C[_], ASSERTION](succeededCount: Int, xs: C[E])(fun: E => ASSERTION)(implicit collecting: Collecting[E, C[E]], asserting: InspectorAsserting[ASSERTION], prettifier: Prettifier, pos: source.Position): asserting.Result = {
asserting.forExactly(succeededCount, collecting.genTraversableFrom(xs), xs, false, prettifier, pos)(fun)
}
// SKIP-SCALATESTJS-START
/**
* Ensure that exactly succeededCount number of elements in a given java.util.Map pass the given inspection function.
*
* @param succeededCount the number of elements in the java.util.Map that must pass the inspection function
* @param xs the java.util.Map
* @param fun the inspection function
* @param collecting the implicit Collecting that can transform xs into a scala.collection.GenTraversable
* @tparam K the type of key in the java.util.Map
* @tparam V the type of value in the java.util.Map
* @tparam JMAP subtype of java.util.Map
*/
def forExactly[K, V, JMAP[k, v] <: java.util.Map[k, v], ASSERTION](succeededCount: Int, xs: JMAP[K, V])(fun: org.scalatest.Entry[K, V] => ASSERTION)(implicit collecting: Collecting[org.scalatest.Entry[K, V], JMAP[K, V]], asserting: InspectorAsserting[ASSERTION], prettifier: Prettifier, pos: source.Position): asserting.Result = {
asserting.forExactly(succeededCount, collecting.genTraversableFrom(xs), xs, false, prettifier, pos)(fun)
}
// SKIP-SCALATESTJS-END
/**
* Ensure that exactly succeededCount number of characters in a given String pass the given inspection function.
*
* @param succeededCount the number of characters in the String that must pass the inspection function
* @param xs the String
* @param fun the inspection function
* @param collecting the implicit Collecting that can transform xs into a scala.collection.GenTraversable
*/
def forExactly[ASSERTION](succeededCount: Int, xs: String)(fun: Char => ASSERTION)(implicit collecting: Collecting[Char, String], asserting: InspectorAsserting[ASSERTION], prettifier: Prettifier, pos: source.Position): asserting.Result = {
asserting.forExactly(succeededCount, collecting.genTraversableFrom(xs), xs, false, prettifier, pos)(fun)
}
private[scalatest] def forNo[E, C[_], ASSERTION](xs: C[E])(fun: E => ASSERTION)(implicit collecting: Collecting[E, C[E]], asserting: InspectorAsserting[ASSERTION], prettifier: Prettifier, pos: source.Position): asserting.Result = {
asserting.forNo(collecting.genTraversableFrom(xs), xs, false, prettifier, pos)(fun)
}
// SKIP-SCALATESTJS-START
private[scalatest] def forNo[K, V, JMAP[k, v] <: java.util.Map[k, v], ASSERTION](xs: JMAP[K, V])(fun: org.scalatest.Entry[K, V] => ASSERTION)(implicit collecting: Collecting[org.scalatest.Entry[K, V], JMAP[K, V]], asserting: InspectorAsserting[ASSERTION], prettifier: Prettifier, pos: source.Position): asserting.Result = {
asserting.forNo(collecting.genTraversableFrom(xs), xs, false, prettifier, pos)(fun)
}
// SKIP-SCALATESTJS-END
private[scalatest] def forNo[ASSERTION](xs: String)(fun: Char => ASSERTION)(implicit collecting: Collecting[Char, String], asserting: InspectorAsserting[ASSERTION], prettifier: Prettifier, pos: source.Position): asserting.Result = {
asserting.forNo(collecting.genTraversableFrom(xs), xs, false, prettifier, pos)(fun)
}
/**
* Ensure the number of elements of a given collection that pass the given inspection function is between from and upTo.
*
* @param from the minimum number of elements that must pass the inspection number
* @param upTo the maximum number of elements that must pass the inspection number
* @param xs the collection of elements
* @param fun the inspection function
* @param collecting the implicit Collecting that can transform xs into a scala.collection.GenTraversable
* @tparam E the type of element in the collection
* @tparam C the type of collection
*/
def forBetween[E, C[_], ASSERTION](from: Int, upTo: Int, xs: C[E])(fun: E => ASSERTION)(implicit collecting: Collecting[E, C[E]], asserting: InspectorAsserting[ASSERTION], prettifier: Prettifier, pos: source.Position): asserting.Result = {
asserting.forBetween(from, upTo, collecting.genTraversableFrom(xs), xs, false, prettifier, pos)(fun)
}
// SKIP-SCALATESTJS-START
/**
* Ensure the number of elements in a given java.util.Map that pass the given inspection function is between from and upTo.
*
* @param from the minimum number of elements in the java.util.Map that must pass the inspection number
* @param upTo the maximum number of elements in the java.util.Map that must pass the inspection number
* @param xs the java.util.Map
* @param fun the inspection function
* @param collecting the implicit Collecting that can transform xs into a scala.collection.GenTraversable
* @tparam K the type of key in the java.util.Map
* @tparam V the type of value in the java.util.Map
* @tparam JMAP subtype of java.util.Map
*/
def forBetween[K, V, JMAP[k, v] <: java.util.Map[k, v], ASSERTION](from: Int, upTo: Int, xs: JMAP[K, V])(fun: org.scalatest.Entry[K, V] => ASSERTION)(implicit collecting: Collecting[org.scalatest.Entry[K, V], JMAP[K, V]], asserting: InspectorAsserting[ASSERTION], prettifier: Prettifier, pos: source.Position): asserting.Result = {
asserting.forBetween(from, upTo, collecting.genTraversableFrom(xs), xs, false, prettifier, pos)(fun)
}
// SKIP-SCALATESTJS-END
/**
* Ensure the number of characters of a given String that pass the given inspection function is between from and upTo.
*
* @param from the minimum number of characters in the String that must pass the inspection number
* @param upTo the maximum number of characters in the String that must pass the inspection number
* @param xs the String
* @param fun the inspection function
* @param collecting the implicit Collecting that can transform xs into a scala.collection.GenTraversable
*/
def forBetween[ASSERTION](from: Int, upTo: Int, xs: String)(fun: Char => ASSERTION)(implicit collecting: Collecting[Char, String], asserting: InspectorAsserting[ASSERTION], prettifier: Prettifier, pos: source.Position): asserting.Result = {
asserting.forBetween(from, upTo, collecting.genTraversableFrom(xs), xs, false, prettifier, pos)(fun)
}
/**
* Ensure that every element in a given collection passes the given inspection function, where "pass" means returning normally from the function (i.e.,
* without throwing an exception).
*
*
* The difference between forEvery and forAll is that
* forEvery will continue to inspect all elements after first failure, and report all failures,
* whereas forAll will stop on (and only report) the first failure.
*
*
* @param xs the collection of elements
* @param fun the inspection function
* @param collecting the implicit Collecting that can transform xs into a scala.collection.GenTraversable
* @tparam E the type of element in the collection
* @tparam C the type of collection
*/
def forEvery[E, C[_], ASSERTION](xs: C[E])(fun: E => ASSERTION)(implicit collecting: Collecting[E, C[E]], asserting: InspectorAsserting[ASSERTION], prettifier: Prettifier, pos: source.Position): asserting.Result = {
asserting.forEvery(collecting.genTraversableFrom(xs), xs, false, prettifier, pos)(fun)
}
// SKIP-SCALATESTJS-START
/**
* Ensure that every element in a given java.util.Map passes the given inspection function, where "pass" means returning normally
* from the function (i.e., without throwing an exception).
*
*
* The difference between forEvery and forAll is that
* forEvery will continue to inspect all elements in the java.util.Map after first failure, and report all failures,
* whereas forAll will stop on (and only report) the first failure.
*
*
* @param xs the java.util.Map
* @param fun the inspection function
* @param collecting the implicit Collecting that can transform xs into a scala.collection.GenTraversable
* @tparam K the type of key in the java.util.Map
* @tparam V the type of value in the java.util.Map
* @tparam JMAP subtype of java.util.Map
*/
def forEvery[K, V, JMAP[k, v] <: java.util.Map[k, v], ASSERTION](xs: JMAP[K, V])(fun: org.scalatest.Entry[K, V] => ASSERTION)(implicit collecting: Collecting[org.scalatest.Entry[K, V], JMAP[K, V]], asserting: InspectorAsserting[ASSERTION], prettifier: Prettifier, pos: source.Position): asserting.Result = {
asserting.forEvery(collecting.genTraversableFrom(xs), xs, false, prettifier, pos)(fun)
}
// SKIP-SCALATESTJS-END
/**
* Ensure that every character in a given String passes the given inspection function, where "pass" means returning normally from the function (i.e.,
* without throwing an exception).
*
*
* The difference between forEvery and forAll is that
* forEvery will continue to inspect all characters in the String after first failure, and report all failures,
* whereas forAll will stop on (and only report) the first failure.
*
*
* @param xs the String
* @param fun the inspection function
* @param collecting the implicit Collecting that can transform xs into a scala.collection.GenTraversable
*/
def forEvery[ASSERTION](xs: String)(fun: Char => ASSERTION)(implicit collecting: Collecting[Char, String], asserting: InspectorAsserting[ASSERTION], prettifier: Prettifier, pos: source.Position): asserting.Result = {
asserting.forEvery(collecting.genTraversableFrom(xs), xs, false, prettifier, pos)(fun)
}
}
/**
* Companion object that facilitates the importing of Inspectors members as
* an alternative to mixing it in. One use case is to import Inspectors's members so you can use
* them in the Scala interpreter.
*/
object Inspectors extends Inspectors
private[scalatest] object InspectorsHelper {
def indentErrorMessages(messages: IndexedSeq[String]) = indentLines(1, messages)
def shouldPropagate(throwable: Throwable): Boolean =
throwable match {
case _: exceptions.NotAllowedException |
_: exceptions.TestPendingException |
_: exceptions.TestCanceledException => true
case _ if Suite.anExceptionThatShouldCauseAnAbort(throwable) => true
case _ => false
}
}