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Merge pull request #15 from LibreCybernetics/improvements
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69 changes: 69 additions & 0 deletions
69
scalatest/src/main/scala/dev/librecybernetics/data/BijectionScalatest.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| package dev.librecybernetics.data | ||
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| import scala.util.Try | ||
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| import org.scalacheck.Arbitrary | ||
| import org.scalatest | ||
| import org.scalatest.{Assertion, Succeeded} | ||
| import org.scalatest.matchers.should.Matchers.* | ||
| import org.scalatestplus.scalacheck.ScalaCheckPropertyChecks.* | ||
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| extension [A, B](mapBijection: MapBijection[A, B]) | ||
| def checkForward(using Arbitrary[A]): Assertion = | ||
| forAll[A, Assertion] { case a: A => | ||
| whenever(mapBijection.isDefined(a)) { | ||
| // Self Inverse | ||
| mapBijection(a).flatMap(mapBijection.reverse(_)) should contain(a) | ||
| } | ||
| } | ||
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| def checkReverse(using Arbitrary[B]): Assertion = | ||
| mapBijection.flip.checkForward | ||
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| @SuppressWarnings(Array("org.wartremover.warts.TryPartial")) | ||
| def check(using Arbitrary[A], Arbitrary[B]): Assertion = | ||
| (for | ||
| Succeeded <- Try(checkForward) | ||
| Succeeded <- Try(checkReverse) | ||
| yield Succeeded).get | ||
| end extension | ||
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| extension [A, B](pfnBijection: PFnBijection[A, B]) | ||
| def checkForward(using Arbitrary[A]): Assertion = | ||
| forAll[A, Assertion] { case a: A => | ||
| whenever(pfnBijection.isDefined(a)) { | ||
| // Self Inverse | ||
| pfnBijection(a).flatMap(pfnBijection.reverse(_)) should contain(a) | ||
| } | ||
| } | ||
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| def checkReverse(using Arbitrary[B]): Assertion = | ||
| pfnBijection.flip.checkForward | ||
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| @SuppressWarnings(Array("org.wartremover.warts.TryPartial")) | ||
| def check(using Arbitrary[A], Arbitrary[B]): Assertion = | ||
| (for | ||
| Succeeded <- Try(checkForward) | ||
| Succeeded <- Try(checkReverse) | ||
| yield Succeeded).get | ||
| end extension | ||
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| extension [A, B](fnBijection: FnBijection[A, B]) | ||
| def checkForward(using Arbitrary[A]): Assertion = | ||
| forAll[A, Assertion] { case a: A => | ||
| whenever(fnBijection.isDefined(a)) { | ||
| // Self Inverse | ||
| fnBijection.reverse(fnBijection(a)) shouldBe a | ||
| } | ||
| } | ||
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| def checkReverse(using Arbitrary[B]): Assertion = | ||
| fnBijection.flip.checkForward | ||
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| @SuppressWarnings(Array("org.wartremover.warts.TryPartial")) | ||
| def check(using Arbitrary[A], Arbitrary[B]): Assertion = | ||
| (for | ||
| Succeeded <- Try(checkForward) | ||
| Succeeded <- Try(checkReverse) | ||
| yield Succeeded).get | ||
| end extension |