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ScalaCheck CHANGELOG

1.16.0 (2022-04-07)

Scalacheck 1.16.0 is binary compatible with the 1.15.x and 1.14.x series. It is published for Scala 2.12, 2.13, and 3.1+ with Scala.js 1.8+ and Scala Native 0.4. This release is the first to support Scala 3 on the Native platform.

User-facing PRs

  • Adds Discord badge by @paualarco in #814
  • ScalaCheck follows semver since 1.14.x by @larsrh in #793
  • Improve docs for Arbitrary by @ashawley in #806
  • Update examples to 3.0 by @ashawley in #813
  • Add badge to README showing supported versions of Scala by @rtyley in #819
  • Fix Arbitrary[Year] instance max value by @dantb in #825
  • Check roundtrip in serialize tests by @ashawley in #829
  • Fix Arbitrary[Char] generates 0xFFFE (not a character in Unicode) by @kadzuya in #835
  • Ensure preconditions are satisified when shrinking Commands actions by @jonaskoelker in #739
  • Support java.time arbitraries on Scala.js & Native by @armanbilge in #830
  • Enable published snapshots by @armanbilge in #877
  • Onwards and upwards by @armanbilge in #879

1.15.4 (2021-05-03)

  • Binary compatible with 1.15.3 version of ScalaCheck.

Added

  • Docs for Gen by @ashawley #783

  • Add Arbitrary[Symbol] by @ashawley

  • Add Cogen Instance For UUID by @isomarcte #763

Changed

  • Verbosity level for pretty-printing proofs by @ashawley #789

  • Hide ambiguous implicit buildableSeq by @ashawley #788

  • Cleanup of time by @ashawley #781

  • Initialize StringBuilder to suitable size by @martijnhoekstra #778

  • update ScalaCheck version in examples by @SethTisue #766

Fixed

  • Fix tuple serialization by @ashawley and @yhylord

  • Fix overflow with Prop.all by @ashawley

  • Fix Off By One Error In JavaTimeChoose by @isomarcte

  • Fix typos by @bwignall #767

1.15.3 (2021-02-16)

  • Binary compatible with 1.15.2 version of ScalaCheck.

Changed

  • Update Scala.js to 1.5.0 #757

  • Support for Scala Native 0.4.0 by @larsrh #751

  • Add Cogen.domainOf by @nigredo-tori #756

Fixed

  • Make printing of Commands failures more readable by @jonaskoelker #634

1.15.2 (2020-12-07)

  • Binary compatible with 1.15.1 version of ScalaCheck.

Changed

  • Avoid filtering in nonEmptyBuildableOf #709

  • Drop support for Scala.js 0.6 #713

  • Add support for Scala.js on Scala 3 #713

Fixed

  • Regression in Gen.nonEmptyBuildableOf and dependent methods

1.15.1 (2020-11-06)

  • Binary compatible with 1.15.0 version of ScalaCheck.

Changed

  • No user-visible changes.

Fixed

  • Return types of Gen.someOf and Gen.atLeastOne corrected to preserve source compatibility with Scala 2.13 artifact for 1.14.3 ScalaCheck. #696

  • Fix breakage with version of Gen.pick that takes multiple arguments of Gen[T]. #695

Added

  • No added features.

1.15.0 (2020-10-31)

  • Binary compatible with 1.14.3 version of ScalaCheck.

  • Source incompatible type signatures of Gen.atLeastOne and Gen.someOf in Scala 2.13 artifact(s) of 1.14.3 version of ScalaCheck that will be fixed in 1.15.1.

Changed

  • Dropped support for Scala 2.10.x

  • Remove implicit for Prop.BooleanOperators which was deprecated in 1.14.1 in favor of Prop.propBoolean #667

  • Added support for Dotty (currently 0.27)

  • Various improvements to Gen and Arbitrary

  • Improvements to Char and String generators

  • Single-argument Prop.collect is deprecated #449

Fixed

  • Prevent nesting properties #677

  • Seed with four zeroes is not allowed #674

  • Printing order of shrunk values #635

  • Initial seed was reused #651

Added

  • Choose[BigDecimal] #670

  • Choose[BigInt] #636

  • Statistical distributions (e.g. Gaussian, Poisson) #656

  • Shrinking with LazyList for Scala 2.13 compatibility #626 #627

  • Shrink.suchThat #484

  • Gen.recursive for recursive generators #616 #639

1.14.3 (2019-12-13)

Changed

  • Update Scala.js to 1.0.0-RC2, previously was 1.0.0-M8.

  • Update Scala.js to 0.6.31, previously was 0.6.29.

Fixed

  • Ensure posNum and negNum always return values #568

1.14.2 (2019-09-25)

  • Binary compatible with 1.14.1 version of ScalaCheck.

Changed

  • No user-visible changes.

Fixed

  • Tests are not being run at all on Scala.js #557

Added

  • No added features.

Administrivia

  • Further improvements to ScalaCheck release script

  • Update build to sbt 1.3.2

  • Update MiMa plugin to 0.6.1

  • Update sbt-pgp to 2.0.0

  • Update Scala.js example project

Contributors

This release was made possible by contributions from the following people:

  • Aaron S. Hawley
  • Erik Osheim
  • Scala Steward
  • Kenji Yoshida

1.14.1 (2019-09-18)

  • Binary compatible with 1.14.0 version of ScalaCheck.

Changed

  • Deprecate ambiguous implicit Prop.BooleanOperators to prepare for Dotty compilation #498

  • Show seed when failing test #400

  • Underlying implementation of Arbitrary[Option[T]] is now equivalent to Gen[Option[T]] #401

  • Update Scala.js 1.x to 1.0.0-M8, previously was 1.0.0-M3

  • The phrases "EPFL" and "copyright owner" in the license were changed to "copyright holder" #461

Fixed

  • Fix overridding parameters with overrideParameters in Properties #289, #360

  • Fix shrinking of commands in 2.12 #468

  • Fix Gen.posNum and Gen.negNum so it gives real numbers less than one #451

  • Fix independence of properties with Prop.&& with viewSeed enabled by sliding the seed in Prop.flatMap #531

  • Fix stackoverflow of Pretty.break #476

  • Fix error handling of command-line parsing #522

  • Artifact for Scala.js 1.0.0-M8 for Scala 2.12 was defective #496

  • Improve error messages for invalid command-line parameters #497

  • Changes to support compilation on Scala 2.13 #410, #480

  • Small fixes to source code for the Dotty compiler #423

  • Fix compilation error in test runner for Java 11 #406

  • Fix compilation error in pretty-printer for Java 11 and later #430

  • Fix deprecation in ScalaCheck's internal tokenizer for Java 11 and later #433

  • Various corrections and improvements to the api docs #415, #417, #420, #428, #467, #524

Added

  • Add new command-line option -disableLegacyShrinking #522

  • Add new command-line option -initialSeed #522

  • Add new methods for disabling and enabling shrinking to Test.Parameters #522

  • Add support for scala.util.Either in Gen #409

  • Add new overloaded version of Gen.oneOf that takes wider type of Iterable #438

  • Add hexadecimal character and string generators Gen.hexChar and Gen.hexStr #470

Administrivia

  • The GitHub repository has been moved from Rickard Nilsson's private account to a repository under the Typelevel organization.

  • ScalaCheck has adopted the Scala code of conduct.

  • Erik Osheim accepted greater responsibility for ScalaCheck's maintenance and development.

  • Aaron S. Hawley was added as a maintainer.

Contributors

This release was made possible by contributions from the following people:

  • Cody Allen
  • Philippus Baalman
  • Gio Borje
  • Ryan Brewster
  • Sébastien Doeraene
  • Bruno Hass
  • Aaron S. Hawley
  • Magnolia K.
  • Guillaume Martres
  • Rickard Nilsson
  • Erik Osheim
  • Allan Renucci
  • Nicolas Rinaudo
  • Lukas Rytz
  • Thomas Smith
  • David Strawn
  • Seth Tisue
  • Kenji Yoshida

1.14.0 (2018-04-22)

Changed

  • Binary incompatible with earlier versions of ScalaCheck. Make sure that any other test frameworks you're using are binary compatible with this release of ScalaCheck.

  • The source code license was changed to the unmodified 3-clause BSD license. Previously, a slightly reworded 3-clause BSD license was used.

Fixed

  • Deadlock in test runner (#290).

  • Distribution issues in Gen.pick.

  • Infinity issues in Gen.choose.

  • Issues with test reporting when running sbt in forked mode.

Added

  • An initialSeed test parameter that can be set to make property evaluation deterministic. If the same seed is used, the generated test cases will be the same. By default, this initial seed is randomized (like in previous versions of ScalaCheck).

  • A filterNot() method on generators.

  • New generator combinator: atLeastOne().

  • New generators and Arbitrary instances for various types.

  • Add support for scala.collection.immutable.LazyList in Scala 2.13, including Gen.infiniteLazyList and Arbitrary[LazyList[T]] (#410)

  • Support for filtering properties in the test runner (#267).

  • Support for setting the report column width used by the test runner.