package test
_ZIO Test_ is a featherweight testing library for effectful programs.
The library imagines every spec as an ordinary immutable value, providing tremendous potential for composition. Thanks to tight integration with ZIO, specs can use resources (including those requiring disposal), have well- defined linear and parallel semantics, and can benefit from a host of ZIO combinators.
import zio.test._ import zio.test.environment.Live import zio.clock.nanoTime import Assertion.isGreaterThan object MyTest extends DefaultRunnableSpec { def spec = suite("clock")( testM("time is non-zero") { assertM(Live.live(nanoTime))(isGreaterThan(0)) } ) }
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- package diff
- package environment
The
environment
package contains testable versions of all the standard ZIO environment types through the TestClock, TestConsole, TestSystem, and TestRandom modules.The
environment
package contains testable versions of all the standard ZIO environment types through the TestClock, TestConsole, TestSystem, and TestRandom modules. See the documentation on the individual modules for more detail about using each of them.If you are using ZIO Test and extending
RunnableSpec
aTestEnvironment
containing all of them will be automatically provided to each of your tests. Otherwise, the easiest way to use the test implementations in ZIO Test is by providing theTestEnvironment
to your program.import zio.test.environment._ myProgram.provideLayer(testEnvironment)
Then all environmental effects, such as printing to the console or generating random numbers, will be implemented by the
TestEnvironment
and will be fully testable. When you do need to access the "live" environment, for example to print debugging information to the console, just use thelive
combinator along with the effect as your normally would.If you are only interested in one of the test implementations for your application, you can also access them a la carte through the
make
method on each module. Each test module requires some data on initialization. Default data is included for each asDefaultData
.import zio.test.environment._ myProgram.provideM(TestConsole.make(TestConsole.DefaultData))
Finally, you can create a
Test
object that implements the test interface directly using themakeTest
method. This can be useful when you want to access some testing functionality without using the environment type.import zio.test.environment._ for { testRandom <- TestRandom.makeTest(TestRandom.DefaultData) n <- testRandom.nextInt } yield n
This can also be useful when you are creating a more complex environment to provide the implementation for test services that you mix in.
- package internal
- package laws
The
laws
package provides functionality for describing laws as values.The
laws
package provides functionality for describing laws as values. The fundamental abstraction is a set ofZLaws[Caps, R]
. These laws model the laws that instances having a capability of typeCaps
are expected to satisfy. A capabilityCaps[_]
is an abstraction describing some functionality that is common across different data types and obeys certain laws. For example, we can model the capability of two values of a type being compared for equality as follows:trait Equal[-A] { def equal(a1: A, a2: A): Boolean }
Definitions of equality are expected to obey certain laws:
- Reflexivity -
a1 === a1
- Symmetry -
a1 === a2 ==> a2 === a1
- Transitivity -
(a1 === a2) && (a2 === a3) ==> (a1 === a3)
These laws define what the capabilities mean and ensure that it is safe to abstract across different instances with the same capability.
Using ZIO Test, we can represent these laws as values. To do so, we define each law using one of the
ZLaws
constructors. For example:val transitivityLaw = ZLaws.Laws3[Equal]("transitivityLaw") { def apply[A: Equal](a1: A, a2: A, a3: A): TestResult = ??? }
We can then combine laws using the
+
operator:val reflexivityLaw: = ??? val symmetryLaw: = ??? val equalLaws = reflexivityLaw + symmetryLaw + transitivityLaw
Laws have a
run
method that takes a generator of values of typeA
and checks that those values satisfy the laws. In addition, objects can extendZLawful
to provide an even more convenient syntax for users to check that instances satisfy certain laws.object Equal extends Lawful[Equal] object Hash extends Lawful[Hash] object Ord extends Lawful[Ord] checkAllLaws(Equal + Hash + Ord)(Gen.anyInt)
Note that capabilities compose seamlessly because of contravariance. We can combine laws describing different capabilities to construct a set of laws requiring that instances having all of the capabilities satisfy each of the laws.
- Reflexivity -
- package mock
- package poly
Type Members
- abstract class AbstractRunnableSpec extends AnyRef
- Annotations
- @EnableReflectiveInstantiation()
- type Annotated[+A] = (A, TestAnnotationMap)
An
Annotated[A]
contains a value of typeA
along with zero or more test annotations. - type Annotations = Has[Service]
- case class Assert(arrow: TestArrow[Any, Boolean]) extends Product with Serializable
- type AssertResult = BoolAlgebra[AssertionValue]
- type AssertResultM = BoolAlgebraM[Any, Nothing, AssertionValue]
- final class Assertion[-A] extends AssertionM[A] with (=> A) => AssertResult
An
Assertion[A]
is capable of producing assertion results on anA
.An
Assertion[A]
is capable of producing assertion results on anA
. As a proposition, assertions compose using logical conjunction and disjunction, and can be negated. - sealed abstract class AssertionData extends AnyRef
- abstract class AssertionM[-A] extends AnyRef
An
AssertionM[A]
is capable of producing assertion results on anA
.An
AssertionM[A]
is capable of producing assertion results on anA
. As a proposition, assertions compose using logical conjunction and disjunction, and can be negated. - sealed abstract class AssertionMData extends AnyRef
- sealed trait AssertionResult extends AnyRef
- sealed abstract class AssertionValue extends AnyRef
An
AssertionValue
keeps track of a assertion and a value, existentially hiding the type.An
AssertionValue
keeps track of a assertion and a value, existentially hiding the type. This is used internally by the library to provide useful error messages in the event of test failures. - trait AssertionVariants extends AnyRef
- sealed abstract class BoolAlgebra[+A] extends Product with Serializable
A
BoolAlgebra[A]
is a description of logical operations on values of typeA
. - final case class BoolAlgebraM[-R, +E, +A](run: ZIO[R, E, BoolAlgebra[A]]) extends Product with Serializable
- trait CompileVariants extends AnyRef
- final class CustomAssertion[A, B] extends AnyRef
CustomAssertion allows users to create their own custom assertions for use in
assertTrue
.CustomAssertion allows users to create their own custom assertions for use in
assertTrue
. They are constructed withCustomAssertion.make
.// Definition sealed trait Pet case class Dog(hasBone: Boolean) extends Pet case class Fish(bubbles: Double) extends Pet case class Cat(livesRemaining: Int) extends Color val lives = CustomAssertion.make[Pet] { case Cat(livesRemaining) => Right(livesRemaining) case other => Left(s"Expected $$other to be Cat") } // Usage suite("custom assertions")( test("as even") { val pet: Option[Pet] = Some(Cat(8)) assertTrue(pet.is(_.some.custom(lives)) == 8) } )
- class DefaultMutableRunnableSpec extends MutableRunnableSpec[Has[Any]]
Syntax for writing test like
Syntax for writing test like
object MySpec extends DefaultMutableRunnableSpec { suite("foo") { testM("name") { } @@ ignore test("name 2") } suite("another suite") { test("name 3") } }
- abstract class DefaultRunnableSpec extends RunnableSpec[test.environment.TestEnvironment, Any]
A default runnable spec that provides testable versions of all of the modules in ZIO (Clock, Random, etc).
- sealed abstract class Eql[A, B] extends AnyRef
A value of type
Eql[A, B]
provides implicit evidence that two values with typesA
andB
could potentially be equal, that is, thatA
is a subtype ofB
orB
is a subtype ofA
.A value of type
Eql[A, B]
provides implicit evidence that two values with typesA
andB
could potentially be equal, that is, thatA
is a subtype ofB
orB
is a subtype ofA
.- Annotations
- @implicitNotFound()
- sealed trait ErrorMessage extends AnyRef
- final case class ExecutedSpec[+E](caseValue: SpecCase[E, ExecutedSpec[E]]) extends Product with Serializable
An
ExecutedSpec
is a spec that has been run to produce test results. - case class FailureCase(errorMessage: String, codeString: String, location: String, path: Chunk[(String, Any)], span: Span, nestedFailures: Chunk[FailureCase], result: Any) extends Product with Serializable
- final case class FailureDetails(assertion: ::[AssertionValue]) extends Product with Serializable
FailureDetails
keeps track of details relevant to failures. - trait FunctionVariants extends AnyRef
- final case class Gen[-R, +A](sample: ZStream[R, Nothing, Sample[R, A]]) extends Product with Serializable
A
Gen[R, A]
represents a generator of values of typeA
, which requires an environmentR
.A
Gen[R, A]
represents a generator of values of typeA
, which requires an environmentR
. Generators may be random or deterministic. - sealed abstract class GenFailureDetails extends AnyRef
GenFailureDetails
keeps track of relevant information related to a failure in a generative test. - trait GenZIO extends AnyRef
- class MutableRunnableSpec[R <: Has[_]] extends RunnableSpec[test.environment.TestEnvironment, Any]
Syntax for writing test like
Syntax for writing test like
object MySpec extends MutableRunnableSpec(layer, aspect) { suite("foo") { testM("name") { } @@ ignore test("name 2") } suite("another suite") { test("name 3") } }
- trait PrettyPrintVersionSpecific extends AnyRef
- case class RenderedResult[T](caseType: CaseType, label: String, status: Status, offset: Int, rendered: Seq[T]) extends Product with Serializable
- sealed trait Result[+A] extends AnyRef
- abstract class RunnableSpec[R <: Has[_], E] extends AbstractRunnableSpec
A
RunnableSpec
has a main function and can be run by the JVM / Scala.js. - final case class Sample[-R, +A](value: A, shrink: ZStream[R, Nothing, Sample[R, A]]) extends Product with Serializable
A sample is a single observation from a random variable, together with a tree of "shrinkings" used for minimization of "large" failures.
- type Sized = Has[Service]
- class SmartAssertMacros extends AnyRef
- implicit final class SmartAssertionOps[A] extends AnyVal
- final case class SourceLocation(path: String, line: Int) extends Product with Serializable
- trait SourceLocationVariants extends AnyRef
- final case class Spec[-R, +E, +T](caseValue: SpecCase[R, E, T, Spec[R, E, T]]) extends Product with Serializable
A
Spec[R, E, T]
is the backbone of _ZIO Test_.A
Spec[R, E, T]
is the backbone of _ZIO Test_. Every spec is either a suite, which contains other specs, or a test of typeT
. All specs require an environment of typeR
and may potentially fail with an error of typeE
. - final case class Summary(success: Int, fail: Int, ignore: Int, summary: String) extends Product with Serializable
- final class TestAnnotation[V] extends Serializable
A type of annotation.
- final class TestAnnotationMap extends AnyRef
An annotation map keeps track of annotations of different types.
- sealed abstract class TestAnnotationRenderer extends AnyRef
A
TestAnnotationRenderer
knows how to render test annotations. - final case class TestArgs(testSearchTerms: List[String], tagSearchTerms: List[String], testTaskPolicy: Option[String]) extends Product with Serializable
- sealed trait TestArrow[-A, +B] extends AnyRef
- abstract class TestAspect[+LowerR, -UpperR, +LowerE, -UpperE] extends AnyRef
A
TestAspect
is an aspect that can be weaved into specs.A
TestAspect
is an aspect that can be weaved into specs. You can think of an aspect as a polymorphic function, capable of transforming one test into another, possibly enlarging the environment or error type. - type TestAspectAtLeastR[R] = TestAspect[Nothing, R, Nothing, Any]
A
TestAspectAtLeast[R]
is aTestAspect
that requires at least anR
in its environment. - type TestAspectPoly = TestAspect[Nothing, Any, Nothing, Any]
A
TestAspectPoly
is aTestAspect
that is completely polymorphic, having no requirements on error or environment. - type TestConfig = Has[Service]
- abstract class TestExecutor[+R <: Has[_], E] extends AnyRef
A
TestExecutor[R, E]
is capable of executing specs that require an environmentR
and may fail with anE
. - sealed abstract class TestFailure[+E] extends AnyRef
- final case class TestLens[+A]() extends Product with Serializable
- implicit final class TestLensAnyOps[A] extends AnyVal
- implicit final class TestLensCauseOps[E] extends AnyVal
- implicit final class TestLensEitherOps[E, A] extends AnyVal
- implicit final class TestLensExitOps[E, A] extends AnyVal
- implicit final class TestLensOptionOps[A] extends AnyVal
- type TestLogger = Has[Service]
- type TestReporter[-E] = (Duration, ExecutedSpec[E]) => URIO[TestLogger, Unit]
A
TestReporter[E]
is capable of reporting test results with error typeE
. - type TestResult = BoolAlgebra[AssertionResult]
- final case class TestRunner[R <: Has[_], E](executor: TestExecutor[R, E], platform: Platform = Platform.makeDefault().withReportFailure(_ => ()), reporter: TestReporter[E] = DefaultTestReporter(TestAnnotationRenderer.default), bootstrap: Layer[Nothing, TestLogger with Clock] = (Console.live >>> TestLogger.fromConsole) ++ Clock.live) extends Product with Serializable
A
TestRunner[R, E]
encapsulates all the logic necessary to run specs that require an environmentR
and may fail with an errorE
.A
TestRunner[R, E]
encapsulates all the logic necessary to run specs that require an environmentR
and may fail with an errorE
. Test runners require a test executor, a platform, and a reporter. - sealed abstract class TestSuccess extends AnyRef
- final case class TestTimeoutException(message: String) extends Throwable with Product with Serializable
- trait TimeVariants extends AnyRef
- trait TimeoutVariants extends AnyRef
- sealed trait Trace[+A] extends AnyRef
- type ZSpec[-R, +E] = Spec[R, TestFailure[E], TestSuccess]
A
ZSpec[R, E]
is the canonical spec for testing ZIO programs.A
ZSpec[R, E]
is the canonical spec for testing ZIO programs. The spec's test type is a ZIO effect that requires anR
and might fail with anE
. - type ZTest[-R, +E] = ZIO[R, TestFailure[E], TestSuccess]
A
ZTest[R, E]
is an effectfully produced test that requires anR
and may fail with anE
. - type ZTestEnv = TestClock with TestConsole with TestRandom with TestSystem
A
ZRTestEnv
is an alias for all ZIO provided Restorable TestEnvironment objects
Value Members
- macro def assert[A](expr: => A)(assertion: Assertion[A]): TestResult
Checks the assertion holds for the given value.
Checks the assertion holds for the given value.
- Definition Classes
- CompileVariants
- val assertCompletes: TestResult
Asserts that the given test was completed.
- val assertCompletesM: UIO[TestResult]
Asserts that the given test was completed.
- macro def assertM[R, E, A](effect: ZIO[R, E, A])(assertion: AssertionM[A]): ZIO[R, E, TestResult]
Checks the assertion holds for the given effectfully-computed value.
Checks the assertion holds for the given effectfully-computed value.
- Definition Classes
- CompileVariants
- macro def assertTrue(expr: Boolean): Assert
- Definition Classes
- CompileVariants
- macro def assertTrue(expr: Boolean, exprs: Boolean*): Assert
Checks the assertion holds for the given value.
Checks the assertion holds for the given value.
- Definition Classes
- CompileVariants
- def check[R <: TestConfig, R1 <: R, A, B, C, D, F, G, H, I](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], rv4: Gen[R, D], rv5: Gen[R, F], rv6: Gen[R, G], rv7: Gen[R, H], rv8: Gen[R, I])(test: (A, B, C, D, F, G, H, I) => TestResult): URIO[R1, TestResult]
A version of
check
that accepts height random variables. - def check[R <: TestConfig, R1 <: R, A, B, C, D, F, G, H](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], rv4: Gen[R, D], rv5: Gen[R, F], rv6: Gen[R, G], rv7: Gen[R, H])(test: (A, B, C, D, F, G, H) => TestResult): URIO[R1, TestResult]
A version of
check
that accepts seven random variables. - def check[R <: TestConfig, A, B, C, D, F, G](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], rv4: Gen[R, D], rv5: Gen[R, F], rv6: Gen[R, G])(test: (A, B, C, D, F, G) => TestResult): URIO[R, TestResult]
A version of
check
that accepts six random variables. - def check[R <: TestConfig, A, B, C, D, F](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], rv4: Gen[R, D], rv5: Gen[R, F])(test: (A, B, C, D, F) => TestResult): URIO[R, TestResult]
A version of
check
that accepts five random variables. - def check[R <: TestConfig, A, B, C, D](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], rv4: Gen[R, D])(test: (A, B, C, D) => TestResult): URIO[R, TestResult]
A version of
check
that accepts four random variables. - def check[R <: TestConfig, A, B, C](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C])(test: (A, B, C) => TestResult): URIO[R, TestResult]
A version of
check
that accepts three random variables. - def check[R <: TestConfig, A, B](rv1: Gen[R, A], rv2: Gen[R, B])(test: (A, B) => TestResult): URIO[R, TestResult]
A version of
check
that accepts two random variables. - def check[R <: TestConfig, A](rv: Gen[R, A])(test: (A) => TestResult): URIO[R, TestResult]
Checks the test passes for "sufficient" numbers of samples from the given random variable.
- def checkAll[R <: TestConfig, R1 <: R, E, A, B, C, D, F, G, H, I](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], rv4: Gen[R, D], rv5: Gen[R, F], rv6: Gen[R, G], rv7: Gen[R, H], rv8: Gen[R, I])(test: (A, B, C, D, F, G, H, I) => TestResult): URIO[R1, TestResult]
A version of
checkAll
that accepts height random variables. - def checkAll[R <: TestConfig, R1 <: R, A, B, C, D, F, G, H](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], rv4: Gen[R, D], rv5: Gen[R, F], rv6: Gen[R, G], rv7: Gen[R, H])(test: (A, B, C, D, F, G, H) => TestResult): URIO[R1, TestResult]
A version of
checkAll
that accepts seven random variables. - def checkAll[R <: TestConfig, A, B, C, D, F, G](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], rv4: Gen[R, D], rv5: Gen[R, F], rv6: Gen[R, G])(test: (A, B, C, D, F, G) => TestResult): URIO[R, TestResult]
A version of
checkAll
that accepts six random variables. - def checkAll[R <: TestConfig, A, B, C, D, F](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], rv4: Gen[R, D], rv5: Gen[R, F])(test: (A, B, C, D, F) => TestResult): URIO[R, TestResult]
A version of
checkAll
that accepts five random variables. - def checkAll[R <: TestConfig, A, B, C, D](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], rv4: Gen[R, D])(test: (A, B, C, D) => TestResult): URIO[R, TestResult]
A version of
checkAll
that accepts four random variables. - def checkAll[R <: TestConfig, A, B, C](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C])(test: (A, B, C) => TestResult): URIO[R, TestResult]
A version of
checkAll
that accepts three random variables. - def checkAll[R <: TestConfig, A, B](rv1: Gen[R, A], rv2: Gen[R, B])(test: (A, B) => TestResult): URIO[R, TestResult]
A version of
checkAll
that accepts two random variables. - def checkAll[R <: TestConfig, A](rv: Gen[R, A])(test: (A) => TestResult): URIO[R, TestResult]
Checks the test passes for all values from the given random variable.
Checks the test passes for all values from the given random variable. This is useful for deterministic
Gen
that comprehensively explore all possibilities in a given domain. - def checkAllM[R <: TestConfig, R1 <: R, E, A, B, C, D, F, G, H, I](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], rv4: Gen[R, D], rv5: Gen[R, F], rv6: Gen[R, G], rv7: Gen[R, H], rv8: Gen[R, I])(test: (A, B, C, D, F, G, H, I) => ZIO[R1, E, TestResult]): ZIO[R1, E, TestResult]
A version of
checkAllM
that accepts height random variables. - def checkAllM[R <: TestConfig, R1 <: R, E, A, B, C, D, F, G, H](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], rv4: Gen[R, D], rv5: Gen[R, F], rv6: Gen[R, G], rv7: Gen[R, H])(test: (A, B, C, D, F, G, H) => ZIO[R1, E, TestResult]): ZIO[R1, E, TestResult]
A version of
checkAllM
that accepts seven random variables. - def checkAllM[R <: TestConfig, R1 <: R, E, A, B, C, D, F, G](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], rv4: Gen[R, D], rv5: Gen[R, F], rv6: Gen[R, G])(test: (A, B, C, D, F, G) => ZIO[R1, E, TestResult]): ZIO[R1, E, TestResult]
A version of
checkAllM
that accepts six random variables. - def checkAllM[R <: TestConfig, R1 <: R, E, A, B, C, D, F](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], rv4: Gen[R, D], rv5: Gen[R, F])(test: (A, B, C, D, F) => ZIO[R1, E, TestResult]): ZIO[R1, E, TestResult]
A version of
checkAllM
that accepts five random variables. - def checkAllM[R <: TestConfig, R1 <: R, E, A, B, C, D](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], rv4: Gen[R, D])(test: (A, B, C, D) => ZIO[R1, E, TestResult]): ZIO[R1, E, TestResult]
A version of
checkAllM
that accepts four random variables. - def checkAllM[R <: TestConfig, R1 <: R, E, A, B, C](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C])(test: (A, B, C) => ZIO[R1, E, TestResult]): ZIO[R1, E, TestResult]
A version of
checkAllM
that accepts three random variables. - def checkAllM[R <: TestConfig, R1 <: R, E, A, B](rv1: Gen[R, A], rv2: Gen[R, B])(test: (A, B) => ZIO[R1, E, TestResult]): ZIO[R1, E, TestResult]
A version of
checkAllM
that accepts two random variables. - def checkAllM[R <: TestConfig, R1 <: R, E, A](rv: Gen[R, A])(test: (A) => ZIO[R1, E, TestResult]): ZIO[R1, E, TestResult]
Checks the effectual test passes for all values from the given random variable.
Checks the effectual test passes for all values from the given random variable. This is useful for deterministic
Gen
that comprehensively explore all possibilities in a given domain. - def checkAllMPar[R <: TestConfig, R1 <: R, E, A, B, C, D, F, G](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], rv4: Gen[R, D], rv5: Gen[R, F], rv6: Gen[R, G], parallelism: Int)(test: (A, B, C, D, F, G) => ZIO[R1, E, TestResult]): ZIO[R1, E, TestResult]
A version of
checkAllMPar
that accepts six random variables. - def checkAllMPar[R <: TestConfig, R1 <: R, E, A, B, C, D, F](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], rv4: Gen[R, D], rv5: Gen[R, F], parallelism: Int)(test: (A, B, C, D, F) => ZIO[R1, E, TestResult]): ZIO[R1, E, TestResult]
A version of
checkAllMPar
that accepts five random variables. - def checkAllMPar[R <: TestConfig, R1 <: R, E, A, B, C, D](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], rv4: Gen[R, D], parallelism: Int)(test: (A, B, C, D) => ZIO[R1, E, TestResult]): ZIO[R1, E, TestResult]
A version of
checkAllMPar
that accepts four random variables. - def checkAllMPar[R <: TestConfig, R1 <: R, E, A, B, C](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], parallelism: Int)(test: (A, B, C) => ZIO[R1, E, TestResult]): ZIO[R1, E, TestResult]
A version of
checkAllMPar
that accepts three random variables. - def checkAllMPar[R <: TestConfig, R1 <: R, E, A, B](rv1: Gen[R, A], rv2: Gen[R, B], parallelism: Int)(test: (A, B) => ZIO[R1, E, TestResult]): ZIO[R1, E, TestResult]
A version of
checkAllMPar
that accepts two random variables. - def checkAllMPar[R <: TestConfig, R1 <: R, E, A](rv: Gen[R, A], parallelism: Int)(test: (A) => ZIO[R1, E, TestResult]): ZIO[R1, E, TestResult]
Checks in parallel the effectual test passes for all values from the given random variable.
Checks in parallel the effectual test passes for all values from the given random variable. This is useful for deterministic
Gen
that comprehensively explore all possibilities in a given domain. - def checkM[R <: TestConfig, R1 <: R, E, A, B, C, D, F, G, H, I](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], rv4: Gen[R, D], rv5: Gen[R, F], rv6: Gen[R, G], rv7: Gen[R, H], rv8: Gen[R, I])(test: (A, B, C, D, F, G, H, I) => ZIO[R1, E, TestResult]): ZIO[R1, E, TestResult]
A version of
checkM
that accepts height random variables. - def checkM[R <: TestConfig, R1 <: R, E, A, B, C, D, F, G, H](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], rv4: Gen[R, D], rv5: Gen[R, F], rv6: Gen[R, G], rv7: Gen[R, H])(test: (A, B, C, D, F, G, H) => ZIO[R1, E, TestResult]): ZIO[R1, E, TestResult]
A version of
checkM
that accepts seven random variables. - def checkM[R <: TestConfig, R1 <: R, E, A, B, C, D, F, G](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], rv4: Gen[R, D], rv5: Gen[R, F], rv6: Gen[R, G])(test: (A, B, C, D, F, G) => ZIO[R1, E, TestResult]): ZIO[R1, E, TestResult]
A version of
checkM
that accepts six random variables. - def checkM[R <: TestConfig, R1 <: R, E, A, B, C, D, F](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], rv4: Gen[R, D], rv5: Gen[R, F])(test: (A, B, C, D, F) => ZIO[R1, E, TestResult]): ZIO[R1, E, TestResult]
A version of
checkM
that accepts five random variables. - def checkM[R <: TestConfig, R1 <: R, E, A, B, C, D](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C], rv4: Gen[R, D])(test: (A, B, C, D) => ZIO[R1, E, TestResult]): ZIO[R1, E, TestResult]
A version of
checkM
that accepts four random variables. - def checkM[R <: TestConfig, R1 <: R, E, A, B, C](rv1: Gen[R, A], rv2: Gen[R, B], rv3: Gen[R, C])(test: (A, B, C) => ZIO[R1, E, TestResult]): ZIO[R1, E, TestResult]
A version of
checkM
that accepts three random variables. - def checkM[R <: TestConfig, R1 <: R, E, A, B](rv1: Gen[R, A], rv2: Gen[R, B])(test: (A, B) => ZIO[R1, E, TestResult]): ZIO[R1, E, TestResult]
A version of
checkM
that accepts two random variables. - def checkM[R <: TestConfig, R1 <: R, E, A](rv: Gen[R, A])(test: (A) => ZIO[R1, E, TestResult]): ZIO[R1, E, TestResult]
Checks the effectual test passes for "sufficient" numbers of samples from the given random variable.
- def checkN(n: Int): CheckN
Checks the test passes for the specified number of samples from the given random variable.
- def checkNM(n: Int): CheckNM
Checks the effectual test passes for the specified number of samples from the given random variable.
- val defaultTestRunner: TestRunner[test.environment.TestEnvironment, Any]
A
Runner
that provides a default testable environment. - def failed[E](cause: Cause[E]): ZIO[Any, TestFailure[E], Nothing]
Creates a failed test result with the specified runtime cause.
- val ignored: UIO[TestSuccess]
Creates an ignored test result.
- def platformSpecific[R, E, A](js: => A, jvm: => A)(f: (A) => ZTest[R, E]): ZTest[R, E]
Passes platform specific information to the specified function, which will use that information to create a test.
Passes platform specific information to the specified function, which will use that information to create a test. If the platform is neither ScalaJS nor the JVM, an ignored test result will be returned.
- def suite[R, E, T](label: String)(specs: Spec[R, E, T]*): Spec[R, E, T]
Builds a suite containing a number of other specs.
- def suiteM[R, E, T](label: String)(specs: ZIO[R, E, Iterable[Spec[R, E, T]]]): Spec[R, E, T]
Builds an effectual suite containing a number of other specs.
- def test(label: String)(assertion: => TestResult)(implicit loc: SourceLocation): ZSpec[Any, Nothing]
Builds a spec with a single pure test.
- def testM[R, E](label: String)(assertion: => ZIO[R, E, TestResult])(implicit loc: SourceLocation): ZSpec[R, E]
Builds a spec with a single effectful test.
- final macro def typeCheck(code: String): UIO[Either[String, Unit]]
Returns either
Right
if the specified string type checks as valid Scala code orLeft
with an error message otherwise.Returns either
Right
if the specified string type checks as valid Scala code orLeft
with an error message otherwise. Dies with a runtime exception if specified string cannot be parsed or is not a known value at compile time.- Definition Classes
- CompileVariants
- def versionSpecific[R, E, A](dotty: => A, scala2: => A)(f: (A) => ZTest[R, E]): ZTest[R, E]
Passes version specific information to the specified function, which will use that information to create a test.
Passes version specific information to the specified function, which will use that information to create a test. If the version is neither Dotty nor Scala 2, an ignored test result will be returned.
- object Annotations
The
Annotations
trait provides access to an annotation map that tests can add arbitrary annotations to.The
Annotations
trait provides access to an annotation map that tests can add arbitrary annotations to. Each annotation consists of a string identifier, an initial value, and a function for combining two values. Annotations form monoids and you can think ofAnnotations
as a more structured logging service or as a super polymorphic version of the writer monad effect. - object Assert extends Serializable
- object Assertion extends AssertionVariants
- object AssertionData
- object AssertionM
- object AssertionMData
- object AssertionResult
- object AssertionValue
- object BoolAlgebra extends Serializable
- object BoolAlgebraM extends Serializable
- object CheckVariants
- object CompileVariants
Proxy methods to call package private methods from the macro
- object CustomAssertion
- object DefaultTestReporter
- object Eql extends EqlLowPriority
- object ErrorMessage
- object ExecutedSpec extends Serializable
- object FailureCase extends Serializable
- object FailureRenderer
- object Gen extends GenZIO with FunctionVariants with TimeVariants with Serializable
- object GenFailureDetails
- object RenderedResult extends Serializable
- object Result
- object Sample extends Serializable
- object Sized
- object SourceLocation extends SourceLocationVariants with Serializable
- object Spec extends Serializable
- object SummaryBuilder
- object TestAnnotation extends Serializable
- object TestAnnotationMap
- object TestAnnotationRenderer
- object TestArgs extends Serializable
- object TestArrow
- object TestAspect extends TimeoutVariants
- object TestConfig
The
TestConfig
service provides access to default configuation settings used by ZIO Test, including the number of times to repeat tests to ensure they are stable, the number of times to retry flaky tests, the sufficient number of samples to check from a random variable, and the maximum number of shrinkings to minimize large failures. - object TestExecutor
- object TestFailure
- object TestLogger
- object TestPlatform
TestPlatform
provides information about the platform tests are being run on to enable platform specific test configuration. - object TestReporter
- object TestResult
- object TestSuccess
- object TestVersion
TestVersion
provides information about the Scala version tests are being run on to enable platform specific test configuration. - object Trace
- object ZTest