object EvalSection extends AnyFlatSpec with Matchers with Section
Eval is a data type for controlling synchronous evaluation. Its implementation is designed to provide stack-safety at all times using a technique called trampolining. There are two different factors that play into evaluation: memoization and laziness. Memoized evaluation evaluates an expression only once and then remembers (memoizes) that value. Lazy evaluation refers to when the expression is evaluated. We talk about eager evaluation if the expression is immediately evaluated when defined and about lazy evaluation if the expression is evaluated when it’s first used. For example, in Scala, a lazy val is both lazy and memoized, a method definition def is lazy, but not memoized, since the body will be evaluated on every call. A normal val evaluates eagerly and also memoizes the result. Eval is able to express all of these evaluation strategies and allows us to chain computations using its Monad instance.
- Alphabetic
- By Inheritance
- EvalSection
- Section
- Matchers
- Explicitly
- MatcherWords
- Tolerance
- AnyFlatSpec
- AnyFlatSpecLike
- Documenting
- Alerting
- Notifying
- Informing
- CanVerb
- MustVerb
- ShouldVerb
- TestRegistration
- TestSuite
- Suite
- Serializable
- Assertions
- TripleEquals
- TripleEqualsSupport
- AnyRef
- Any
- Hide All
- Show All
- Public
- Protected
Type Members
- final class AWord extends AnyRef
- Definition Classes
- Matchers
- final class AnWord extends AnyRef
- Definition Classes
- Matchers
- sealed class AnyShouldWrapper[T] extends AnyRef
- Definition Classes
- Matchers
- final class BehaviorWord extends AnyRef
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike
- class CheckingEqualizer[L] extends AnyRef
- Definition Classes
- TripleEqualsSupport
- sealed class Collected extends Serializable
- Attributes
- protected
- Definition Classes
- Matchers
- class DecidedByEquality[A] extends Equality[A]
- Definition Classes
- Explicitly
- class DecidedWord extends AnyRef
- Definition Classes
- Explicitly
- class DeterminedByEquivalence[T] extends Equivalence[T]
- Definition Classes
- Explicitly
- class DeterminedWord extends AnyRef
- Definition Classes
- Explicitly
- class Equalizer[L] extends AnyRef
- Definition Classes
- TripleEqualsSupport
- final class HavePropertyMatcherGenerator extends AnyRef
- Definition Classes
- Matchers
- final class IgnoreVerbString extends AnyRef
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike
- final class IgnoreVerbStringTaggedAs extends AnyRef
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike
- final class IgnoreWord extends AnyRef
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike
- final class InAndIgnoreMethods extends AnyRef
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike
- final class InAndIgnoreMethodsAfterTaggedAs extends AnyRef
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike
- final class ItVerbString extends AnyRef
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike
- final class ItVerbStringTaggedAs extends AnyRef
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike
- final class ItWord extends AnyRef
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike
- final class KeyWord extends AnyRef
- Definition Classes
- Matchers
- trait NoArgTest extends () => Outcome with TestData
- Attributes
- protected
- Definition Classes
- TestSuite
- final class PlusOrMinusWrapper[T] extends AnyRef
- Definition Classes
- Tolerance
- final class RegexWord extends AnyRef
- Definition Classes
- Matchers
- final class RegexWrapper extends AnyRef
- Definition Classes
- Matchers
- class ResultOfBeWordForAny[T] extends AnyRef
- Definition Classes
- Matchers
- sealed class ResultOfBeWordForCollectedAny[T] extends AnyRef
- Definition Classes
- Matchers
- final class ResultOfBeWordForCollectedArray[T] extends ResultOfBeWordForCollectedAny[Array[T]]
- Definition Classes
- Matchers
- final class ResultOfCollectedAny[T] extends AnyRef
- Definition Classes
- Matchers
- final class ResultOfContainWordForCollectedAny[T] extends AnyRef
- Definition Classes
- Matchers
- final class ResultOfEndWithWordForCollectedString extends AnyRef
- Definition Classes
- Matchers
- final class ResultOfEndWithWordForString extends AnyRef
- Definition Classes
- Matchers
- final class ResultOfFullyMatchWordForCollectedString extends AnyRef
- Definition Classes
- Matchers
- final class ResultOfFullyMatchWordForString extends AnyRef
- Definition Classes
- Matchers
- final class ResultOfHaveWordForCollectedExtent[A] extends AnyRef
- Definition Classes
- Matchers
- final class ResultOfHaveWordForExtent[A] extends AnyRef
- Definition Classes
- Matchers
- final class ResultOfIncludeWordForCollectedString extends AnyRef
- Definition Classes
- Matchers
- final class ResultOfIncludeWordForString extends AnyRef
- Definition Classes
- Matchers
- final class ResultOfNotWordForCollectedAny[T] extends AnyRef
- Definition Classes
- Matchers
- final class ResultOfStartWithWordForCollectedString extends AnyRef
- Definition Classes
- Matchers
- final class ResultOfStartWithWordForString extends AnyRef
- Definition Classes
- Matchers
- trait StringCanWrapperForVerb extends AnyRef
- Definition Classes
- CanVerb
- trait StringMustWrapperForVerb extends AnyRef
- Definition Classes
- MustVerb
- final class StringShouldWrapper extends AnyShouldWrapper[String] with org.scalatest.matchers.should.Matchers.StringShouldWrapperForVerb
- Definition Classes
- Matchers
- trait StringShouldWrapperForVerb extends AnyRef
- Definition Classes
- ShouldVerb
- class TheAfterWord extends AnyRef
- Definition Classes
- Explicitly
- final class TheSameInstanceAsPhrase extends AnyRef
- Definition Classes
- Matchers
- final class TheyVerbString extends AnyRef
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike
- final class TheyVerbStringTaggedAs extends AnyRef
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike
- final class TheyWord extends AnyRef
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike
- final class ValueWord extends AnyRef
- Definition Classes
- Matchers
Value Members
- final def !=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- def !==[T](right: Spread[T]): TripleEqualsInvocationOnSpread[T]
- Definition Classes
- TripleEqualsSupport
- def !==(right: Null): TripleEqualsInvocation[Null]
- Definition Classes
- TripleEqualsSupport
- def !==[T](right: T): TripleEqualsInvocation[T]
- Definition Classes
- TripleEqualsSupport
- final def ##: Int
- Definition Classes
- AnyRef → Any
- def <[T](right: T)(implicit arg0: Ordering[T]): ResultOfLessThanComparison[T]
- Definition Classes
- Matchers
- def <=[T](right: T)(implicit arg0: Ordering[T]): ResultOfLessThanOrEqualToComparison[T]
- Definition Classes
- Matchers
- final def ==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- def ===[T](right: Spread[T]): TripleEqualsInvocationOnSpread[T]
- Definition Classes
- TripleEqualsSupport
- def ===(right: Null): TripleEqualsInvocation[Null]
- Definition Classes
- TripleEqualsSupport
- def ===[T](right: T): TripleEqualsInvocation[T]
- Definition Classes
- TripleEqualsSupport
- def >[T](right: T)(implicit arg0: Ordering[T]): ResultOfGreaterThanComparison[T]
- Definition Classes
- Matchers
- def >=[T](right: T)(implicit arg0: Ordering[T]): ResultOfGreaterThanOrEqualToComparison[T]
- Definition Classes
- Matchers
- def a[T](implicit arg0: ClassTag[T]): ResultOfATypeInvocation[T]
- Definition Classes
- Matchers
- val a: AWord
- Definition Classes
- Matchers
- val after: TheAfterWord
- Definition Classes
- Explicitly
- def alert: Alerter
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike → Alerting
- def all(xs: String)(implicit collecting: Collecting[Char, String], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[Char]
- Definition Classes
- Matchers
- def all[K, V, JMAP[k, v] <: Map[k, v]](xs: JMAP[K, V])(implicit collecting: Collecting[Entry[K, V], JMAP[K, V]], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[Entry[K, V]]
- Definition Classes
- Matchers
- def all[K, V, MAP[k, v] <: GenMap[k, v]](xs: MAP[K, V])(implicit collecting: Collecting[(K, V), GenTraversable[(K, V)]], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[(K, V)]
- Definition Classes
- Matchers
- def all[E, C[_]](xs: C[E])(implicit collecting: Collecting[E, C[E]], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[E]
- Definition Classes
- Matchers
- def allElementsOf[R](elements: GenTraversable[R]): ResultOfAllElementsOfApplication
- Definition Classes
- Matchers
- def allOf(firstEle: Any, secondEle: Any, remainingEles: Any*)(implicit pos: Position): ResultOfAllOfApplication
- Definition Classes
- Matchers
- def alwaysEval(resultList: List[Int], counterAfterListEval: Int, latestCounter: Int): Assertion
If we want lazy evaluation, but without memoization akin to Function0, we can use Eval.always Here we can see, that the expression is evaluated every time we call .value.
Eval.always
If we want lazy evaluation, but without memoization akin to Function0, we can use Eval.always Here we can see, that the expression is evaluated every time we call .value.
val alwaysEval = Eval.always(println("Always evaluated")) //Always evaluated alwaysEval.eval //Always evaluated alwaysEval.eval //Always evaluated alwaysEval.eval
- def an[T](implicit arg0: ClassTag[T]): ResultOfAnTypeInvocation[T]
- Definition Classes
- Matchers
- val an: AnWord
- Definition Classes
- Matchers
- final def asInstanceOf[T0]: T0
- Definition Classes
- Any
- macro def assert(condition: Boolean, clue: Any)(implicit prettifier: Prettifier, pos: Position): Assertion
- Definition Classes
- Assertions
- macro def assert(condition: Boolean)(implicit prettifier: Prettifier, pos: Position): Assertion
- Definition Classes
- Assertions
- macro def assertCompiles(code: String)(implicit pos: Position): Assertion
- Definition Classes
- Assertions
- macro def assertDoesNotCompile(code: String)(implicit pos: Position): Assertion
- Definition Classes
- Assertions
- def assertResult(expected: Any)(actual: Any)(implicit prettifier: Prettifier, pos: Position): Assertion
- Definition Classes
- Assertions
- def assertResult(expected: Any, clue: Any)(actual: Any)(implicit prettifier: Prettifier, pos: Position): Assertion
- Definition Classes
- Assertions
- def assertThrows[T <: AnyRef](f: => Any)(implicit classTag: ClassTag[T], pos: Position): Assertion
- Definition Classes
- Assertions
- macro def assertTypeError(code: String)(implicit pos: Position): Assertion
- Definition Classes
- Assertions
- macro def assume(condition: Boolean, clue: Any)(implicit prettifier: Prettifier, pos: Position): Assertion
- Definition Classes
- Assertions
- macro def assume(condition: Boolean)(implicit prettifier: Prettifier, pos: Position): Assertion
- Definition Classes
- Assertions
- def atLeast(num: Int, xs: String)(implicit collecting: Collecting[Char, String], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[Char]
- Definition Classes
- Matchers
- def atLeast[K, V, JMAP[k, v] <: Map[k, v]](num: Int, xs: JMAP[K, V])(implicit collecting: Collecting[Entry[K, V], JMAP[K, V]], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[Entry[K, V]]
- Definition Classes
- Matchers
- def atLeast[K, V, MAP[k, v] <: GenMap[k, v]](num: Int, xs: MAP[K, V])(implicit collecting: Collecting[(K, V), GenTraversable[(K, V)]], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[(K, V)]
- Definition Classes
- Matchers
- def atLeast[E, C[_]](num: Int, xs: C[E])(implicit collecting: Collecting[E, C[E]], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[E]
- Definition Classes
- Matchers
- def atLeastOneElementOf(elements: GenTraversable[Any]): ResultOfAtLeastOneElementOfApplication
- Definition Classes
- Matchers
- def atLeastOneOf(firstEle: Any, secondEle: Any, remainingEles: Any*)(implicit pos: Position): ResultOfAtLeastOneOfApplication
- Definition Classes
- Matchers
- def atMost(num: Int, xs: String)(implicit collecting: Collecting[Char, String], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[Char]
- Definition Classes
- Matchers
- def atMost[K, V, JMAP[k, v] <: Map[k, v]](num: Int, xs: JMAP[K, V])(implicit collecting: Collecting[Entry[K, V], JMAP[K, V]], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[Entry[K, V]]
- Definition Classes
- Matchers
- def atMost[K, V, MAP[k, v] <: GenMap[k, v]](num: Int, xs: MAP[K, V])(implicit collecting: Collecting[(K, V), GenTraversable[(K, V)]], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[(K, V)]
- Definition Classes
- Matchers
- def atMost[E, C[_]](num: Int, xs: C[E])(implicit collecting: Collecting[E, C[E]], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[E]
- Definition Classes
- Matchers
- def atMostOneElementOf[R](elements: GenTraversable[R]): ResultOfAtMostOneElementOfApplication
- Definition Classes
- Matchers
- def atMostOneOf(firstEle: Any, secondEle: Any, remainingEles: Any*)(implicit pos: Position): ResultOfAtMostOneOfApplication
- Definition Classes
- Matchers
- val be: BeWord
- Definition Classes
- MatcherWords
- val behave: BehaveWord
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike
- val behavior: BehaviorWord
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike
- def between(from: Int, upTo: Int, xs: String)(implicit collecting: Collecting[Char, String], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[Char]
- Definition Classes
- Matchers
- def between[K, V, JMAP[k, v] <: Map[k, v]](from: Int, upTo: Int, xs: JMAP[K, V])(implicit collecting: Collecting[Entry[K, V], JMAP[K, V]], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[Entry[K, V]]
- Definition Classes
- Matchers
- def between[E, C[_]](from: Int, upTo: Int, xs: C[E])(implicit collecting: Collecting[E, C[E]], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[E]
- Definition Classes
- Matchers
- def cancel(cause: Throwable)(implicit pos: Position): Nothing
- Definition Classes
- Assertions
- def cancel(message: String, cause: Throwable)(implicit pos: Position): Nothing
- Definition Classes
- Assertions
- def cancel(message: String)(implicit pos: Position): Nothing
- Definition Classes
- Assertions
- def cancel()(implicit pos: Position): Nothing
- Definition Classes
- Assertions
- def clone(): AnyRef
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.CloneNotSupportedException]) @native()
- val compile: CompileWord
- Definition Classes
- MatcherWords
- val contain: ContainWord
- Definition Classes
- MatcherWords
- def convertEquivalenceToAToBConstraint[A, B](equivalenceOfB: Equivalence[B])(implicit ev: <:<[A, B]): CanEqual[A, B]
- Definition Classes
- TripleEquals → TripleEqualsSupport
- def convertEquivalenceToBToAConstraint[A, B](equivalenceOfA: Equivalence[A])(implicit ev: <:<[B, A]): CanEqual[A, B]
- Definition Classes
- TripleEquals → TripleEqualsSupport
- implicit def convertNumericToPlusOrMinusWrapper[T](pivot: T)(implicit arg0: Numeric[T]): PlusOrMinusWrapper[T]
- Definition Classes
- Tolerance
- implicit def convertSymbolToHavePropertyMatcherGenerator(symbol: Symbol)(implicit prettifier: Prettifier, pos: Position): HavePropertyMatcherGenerator
- Definition Classes
- Matchers
- implicit def convertToAnyShouldWrapper[T](o: T)(implicit pos: Position, prettifier: Prettifier): AnyShouldWrapper[T]
- Definition Classes
- Matchers
- def convertToCheckingEqualizer[T](left: T): CheckingEqualizer[T]
- Definition Classes
- TripleEquals → TripleEqualsSupport
- implicit def convertToEqualizer[T](left: T): Equalizer[T]
- Definition Classes
- TripleEquals → TripleEqualsSupport
- implicit def convertToInAndIgnoreMethods(resultOfStringPassedToVerb: ResultOfStringPassedToVerb): InAndIgnoreMethods
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike
- implicit def convertToInAndIgnoreMethodsAfterTaggedAs(resultOfTaggedAsInvocation: ResultOfTaggedAsInvocation): InAndIgnoreMethodsAfterTaggedAs
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike
- implicit def convertToRegexWrapper(o: Regex): RegexWrapper
- Definition Classes
- Matchers
- implicit def convertToStringCanWrapper(o: String)(implicit position: Position): StringCanWrapperForVerb
- Definition Classes
- CanVerb
- implicit def convertToStringMustWrapperForVerb(o: String)(implicit position: Position): StringMustWrapperForVerb
- Definition Classes
- MustVerb
- implicit def convertToStringShouldWrapper(o: String)(implicit pos: Position, prettifier: Prettifier): StringShouldWrapper
- Definition Classes
- Matchers
- implicit def convertToStringShouldWrapperForVerb(o: String)(implicit position: Position): StringShouldWrapperForVerb
- Definition Classes
- ShouldVerb
- val decided: DecidedWord
- Definition Classes
- Explicitly
- def defaultEquality[A]: Equality[A]
- Definition Classes
- TripleEqualsSupport
- def deferEval(resultList: List[Int]): Assertion
Defer a computation which produces an Eval[A] value This is useful when you want to delay execution of an expression which produces an Eval[A] value.
Eval.defer
Defer a computation which produces an Eval[A] value This is useful when you want to delay execution of an expression which produces an Eval[A] value. Like .flatMap, it is stack-safe. Because Eval guarantees stack-safety, we can chain a lot of computations together using flatMap without fear of blowing up the stack.
- val defined: DefinedWord
- Definition Classes
- MatcherWords
- def definedAt[T](right: T): ResultOfDefinedAt[T]
- Definition Classes
- Matchers
- val determined: DeterminedWord
- Definition Classes
- Explicitly
- val empty: EmptyWord
- Definition Classes
- MatcherWords
- val endWith: EndWithWord
- Definition Classes
- MatcherWords
- final def eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- def equal(o: Null): Matcher[AnyRef]
- Definition Classes
- Matchers
- def equal[T](spread: Spread[T]): Matcher[T]
- Definition Classes
- Matchers
- def equal(right: Any): MatcherFactory1[Any, Equality]
- Definition Classes
- MatcherWords
- def equals(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef → Any
- def every(xs: String)(implicit collecting: Collecting[Char, String], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[Char]
- Definition Classes
- Matchers
- def every[K, V, JMAP[k, v] <: Map[k, v]](xs: JMAP[K, V])(implicit collecting: Collecting[Entry[K, V], JMAP[K, V]], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[Entry[K, V]]
- Definition Classes
- Matchers
- def every[K, V, MAP[k, v] <: Map[k, v]](xs: MAP[K, V])(implicit collecting: Collecting[(K, V), GenTraversable[(K, V)]], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[(K, V)]
- Definition Classes
- Matchers
- def every[E, C[_]](xs: C[E])(implicit collecting: Collecting[E, C[E]], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[E]
- Definition Classes
- Matchers
- def exactly(num: Int, xs: String)(implicit collecting: Collecting[Char, String], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[Char]
- Definition Classes
- Matchers
- def exactly[K, V, JMAP[k, v] <: Map[k, v]](num: Int, xs: JMAP[K, V])(implicit collecting: Collecting[Entry[K, V], JMAP[K, V]], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[Entry[K, V]]
- Definition Classes
- Matchers
- def exactly[K, V, MAP[k, v] <: GenMap[k, v]](num: Int, xs: MAP[K, V])(implicit collecting: Collecting[(K, V), GenTraversable[(K, V)]], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[(K, V)]
- Definition Classes
- Matchers
- def exactly[E, C[_]](num: Int, xs: C[E])(implicit collecting: Collecting[E, C[E]], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[E]
- Definition Classes
- Matchers
- final def execute(testName: String, configMap: ConfigMap, color: Boolean, durations: Boolean, shortstacks: Boolean, fullstacks: Boolean, stats: Boolean): Unit
- Definition Classes
- Suite
- val exist: ExistWord
- Definition Classes
- MatcherWords
- def expectedTestCount(filter: Filter): Int
- Definition Classes
- Suite
- def fail(cause: Throwable)(implicit pos: Position): Nothing
- Definition Classes
- Assertions
- def fail(message: String, cause: Throwable)(implicit pos: Position): Nothing
- Definition Classes
- Assertions
- def fail(message: String)(implicit pos: Position): Nothing
- Definition Classes
- Assertions
- def fail()(implicit pos: Position): Nothing
- Definition Classes
- Assertions
- def finalize(): Unit
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.Throwable])
- val fullyMatch: FullyMatchWord
- Definition Classes
- MatcherWords
- final def getClass(): Class[_ <: AnyRef]
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
- def hashCode(): Int
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
- val have: HaveWord
- Definition Classes
- MatcherWords
- val ignore: IgnoreWord
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike
- def inOrder(firstEle: Any, secondEle: Any, remainingEles: Any*)(implicit pos: Position): ResultOfInOrderApplication
- Definition Classes
- Matchers
- def inOrderElementsOf[R](elements: GenTraversable[R]): ResultOfInOrderElementsOfApplication
- Definition Classes
- Matchers
- def inOrderOnly[T](firstEle: Any, secondEle: Any, remainingEles: Any*)(implicit pos: Position): ResultOfInOrderOnlyApplication
- Definition Classes
- Matchers
- val include: IncludeWord
- Definition Classes
- MatcherWords
- def info: Informer
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike → Informing
- def intercept[T <: AnyRef](f: => Any)(implicit classTag: ClassTag[T], pos: Position): T
- Definition Classes
- Assertions
- final def isInstanceOf[T0]: Boolean
- Definition Classes
- Any
- val it: ItWord
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike
- val key: KeyWord
- Definition Classes
- Matchers
- def laterEval(resultList: List[Int], counterResult: Int): Assertion
If we want lazy evaluation, we can use Eval.later In this case
Eval.later
If we want lazy evaluation, we can use Eval.later In this case
val lazyEval = Eval.later { println("Running expensive calculation...") 1 + 2 * 3 } // lazyEval: cats.Eval[Int] = cats.Later@6c2b03e9 lazyEval.value // Running expensive calculation... // res1: Int = 7 lazyEval.value // res2: Int = 7
Notice that “Running expensive calculation” is printed only once, since the value was memoized internally. Meaning also that the resulted operation was only computed once. Eval.later is different to using a lazy val in a few different ways. First, it allows the runtime to perform garbage collection of the thunk after evaluation, leading to more memory being freed earlier. Secondly, when lazy vals are evaluated, in order to preserve thread-safety, the Scala compiler will lock the whole surrounding class, whereas Eval will only lock itself.
- val length: LengthWord
- Definition Classes
- MatcherWords
- def lowPriorityTypeCheckedConstraint[A, B](implicit equivalenceOfB: Equivalence[B], ev: <:<[A, B]): CanEqual[A, B]
- Definition Classes
- TripleEquals → TripleEqualsSupport
- def markup: Documenter
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike → Documenting
- val matchPattern: MatchPatternWord
- Definition Classes
- MatcherWords
- def message(expectedMessage: String): ResultOfMessageWordApplication
- Definition Classes
- Matchers
- final def ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- def nestedSuites: IndexedSeq[Suite]
- Definition Classes
- Suite
- def no(xs: String)(implicit collecting: Collecting[Char, String], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[Char]
- Definition Classes
- Matchers
- def no[K, V, JMAP[k, v] <: Map[k, v]](xs: JMAP[K, V])(implicit collecting: Collecting[Entry[K, V], JMAP[K, V]], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[Entry[K, V]]
- Definition Classes
- Matchers
- def no[E, C[_]](xs: C[E])(implicit collecting: Collecting[E, C[E]], prettifier: Prettifier, pos: Position): ResultOfCollectedAny[E]
- Definition Classes
- Matchers
- def noElementsOf(elements: GenTraversable[Any]): ResultOfNoElementsOfApplication
- Definition Classes
- Matchers
- def noException(implicit pos: Position): NoExceptionWord
- Definition Classes
- MatcherWords
- def noneOf(firstEle: Any, secondEle: Any, remainingEles: Any*)(implicit pos: Position): ResultOfNoneOfApplication
- Definition Classes
- Matchers
- val not: NotWord
- Definition Classes
- MatcherWords
- def note: Notifier
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike → Notifying
- final def notify(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
- final def notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
- def nowEval(resultList: List[Int]): Assertion
First of the strategies is eager evaluation, we can construct an Eval eagerly using Eval.now:
Eval.now
First of the strategies is eager evaluation, we can construct an Eval eagerly using Eval.now:
import cats.Eval // import cats.Eval import cats.implicits._ // import cats.implicits._ val eager = Eval.now { println("Running expensive calculation...") 1 + 2 * 3 } // Running expensive calculation... // eager: cats.Eval[Int] = Now(7)
We can run the computation using the given evaluation strategy anytime by using the value method. eager.value // res0: Int = 7
- def of[T](implicit ev: ClassTag[T]): ResultOfOfTypeInvocation[T]
- Definition Classes
- Matchers
- def oneElementOf(elements: GenTraversable[Any]): ResultOfOneElementOfApplication
- Definition Classes
- Matchers
- def oneOf(firstEle: Any, secondEle: Any, remainingEles: Any*)(implicit pos: Position): ResultOfOneOfApplication
- Definition Classes
- Matchers
- def only(xs: Any*)(implicit pos: Position): ResultOfOnlyApplication
- Definition Classes
- Matchers
- def pending: Assertion with PendingStatement
- Definition Classes
- Assertions
- def pendingUntilFixed(f: => Unit)(implicit pos: Position): Assertion with PendingStatement
- Definition Classes
- Assertions
- val readable: ReadableWord
- Definition Classes
- MatcherWords
- val regex: RegexWord
- Definition Classes
- Matchers
- final def registerIgnoredTest(testText: String, testTags: Tag*)(testFun: => Any)(implicit pos: Position): Unit
- Definition Classes
- AnyFlatSpecLike → TestRegistration
- final def registerTest(testText: String, testTags: Tag*)(testFun: => Any)(implicit pos: Position): Unit
- Definition Classes
- AnyFlatSpecLike → TestRegistration
- def rerunner: Option[String]
- Definition Classes
- Suite
- def run(testName: Option[String], args: Args): Status
- Definition Classes
- AnyFlatSpecLike → Suite
- def runNestedSuites(args: Args): Status
- Attributes
- protected
- Definition Classes
- Suite
- def runTest(testName: String, args: Args): Status
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike → TestSuite → Suite
- def runTests(testName: Option[String], args: Args): Status
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike → Suite
- implicit val shorthandSharedTestRegistrationFunction: StringVerbBehaveLikeInvocation
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike
- implicit val shorthandTestRegistrationFunction: StringVerbStringInvocation
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike
- val size: SizeWord
- Definition Classes
- MatcherWords
- val sorted: SortedWord
- Definition Classes
- MatcherWords
- val startWith: StartWithWord
- Definition Classes
- MatcherWords
- final val succeed: Assertion
- Definition Classes
- Assertions
- def suiteId: String
- Definition Classes
- Suite
- def suiteName: String
- Definition Classes
- Suite
- final def synchronized[T0](arg0: => T0): T0
- Definition Classes
- AnyRef
- def tags: Map[String, Set[String]]
- Definition Classes
- AnyFlatSpecLike → Suite
- def testDataFor(testName: String, theConfigMap: ConfigMap): TestData
- Definition Classes
- AnyFlatSpecLike → Suite
- def testNames: Set[String]
- Definition Classes
- AnyFlatSpecLike → Suite
- def the[T](implicit arg0: ClassTag[T], pos: Position): ResultOfTheTypeInvocation[T]
- Definition Classes
- Matchers
- def theSameElementsAs(xs: GenTraversable[_]): ResultOfTheSameElementsAsApplication
- Definition Classes
- Matchers
- def theSameElementsInOrderAs(xs: GenTraversable[_]): ResultOfTheSameElementsInOrderAsApplication
- Definition Classes
- Matchers
- val theSameInstanceAs: TheSameInstanceAsPhrase
- Definition Classes
- Matchers
- val they: TheyWord
- Attributes
- protected
- Definition Classes
- AnyFlatSpecLike
- def thrownBy(fun: => Any): ResultOfThrownByApplication
- Definition Classes
- Matchers
- def toString(): String
- Definition Classes
- AnyFlatSpec → AnyRef → Any
- val typeCheck: TypeCheckWord
- Definition Classes
- MatcherWords
- def typeCheckedConstraint[A, B](implicit equivalenceOfA: Equivalence[A], ev: <:<[B, A]): CanEqual[A, B]
- Definition Classes
- TripleEquals → TripleEqualsSupport
- implicit def unconstrainedEquality[A, B](implicit equalityOfA: Equality[A]): CanEqual[A, B]
- Definition Classes
- TripleEquals → TripleEqualsSupport
- val value: ValueWord
- Definition Classes
- Matchers
- 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()
- def withClue[T](clue: Any)(fun: => T): T
- Definition Classes
- Assertions
- def withFixture(test: NoArgTest): Outcome
- Attributes
- protected
- Definition Classes
- TestSuite
- val writable: WritableWord
- Definition Classes
- MatcherWords
Deprecated Value Members
- def conversionCheckedConstraint[A, B](implicit equivalenceOfA: Equivalence[A], cnv: (B) => A): CanEqual[A, B]
- Definition Classes
- TripleEquals → TripleEqualsSupport
- Annotations
- @deprecated
- Deprecated
(Since version 3.1.0) The conversionCheckedConstraint method has been deprecated and will be removed in a future version of ScalaTest. It is no longer needed now that the deprecation period of ConversionCheckedTripleEquals has expired. It will not be replaced.
- def convertEquivalenceToAToBConversionConstraint[A, B](equivalenceOfB: Equivalence[B])(implicit ev: (A) => B): CanEqual[A, B]
- Definition Classes
- TripleEquals → TripleEqualsSupport
- Annotations
- @deprecated
- Deprecated
(Since version 3.1.0) The convertEquivalenceToAToBConversionConstraint method has been deprecated and will be removed in a future version of ScalaTest. It is no longer needed now that the deprecation period of ConversionCheckedTripleEquals has expired. It will not be replaced.
- def convertEquivalenceToBToAConversionConstraint[A, B](equivalenceOfA: Equivalence[A])(implicit ev: (B) => A): CanEqual[A, B]
- Definition Classes
- TripleEquals → TripleEqualsSupport
- Annotations
- @deprecated
- Deprecated
(Since version 3.1.0) The convertEquivalenceToBToAConversionConstraint method has been deprecated and will be removed in a future version of ScalaTest. It is no longer needed now that the deprecation period of ConversionCheckedTripleEquals has expired. It will not be replaced.
- def lowPriorityConversionCheckedConstraint[A, B](implicit equivalenceOfB: Equivalence[B], cnv: (A) => B): CanEqual[A, B]
- Definition Classes
- TripleEquals → TripleEqualsSupport
- Annotations
- @deprecated
- Deprecated
(Since version 3.1.0) The lowPriorityConversionCheckedConstraint method has been deprecated and will be removed in a future version of ScalaTest. It is no longer needed now that the deprecation period of ConversionCheckedTripleEquals has expired. It will not be replaced.
- final val styleName: String
- Definition Classes
- AnyFlatSpecLike → Suite
- Annotations
- @deprecated
- Deprecated
(Since version 3.1.0) The styleName lifecycle method has been deprecated and will be removed in a future version of ScalaTest with no replacement.