jschneidereit

diff --git a/kotest-assertions/kotest-assertions-core/src/jvmTest/kotlin/com/sksamuel/kotest/matchers/collections/ShouldContainExactlyTest.kt b/kotest-assertions/kotest-assertions-core/src/jvmTest/kotlin/com/sksamuel/kotest/matchers
/collections/ShouldContainExactlyTest.kt
index 7d574fb1..d917a919 100644
--- a/kotest-assertions/kotest-assertions-core/src/jvmTest/kotlin/com/sksamuel/kotest/matchers/collections/ShouldContainExactlyTest.kt
+++ b/kotest-assertions/kotest-assertions-core/src/jvmTest/kotlin/com/sksamuel/kotest/matchers/collections/ShouldContainExactlyTest.kt
@@ -12,9 +12,12 @@ import io.kotest.matchers.should
 import io.kotest.matchers.shouldBe
 import io.kotest.matchers.shouldNot
 import io.kotest.matchers.throwable.shouldHaveMessage
+import java.io.File

jschneidereit

import io.kotest.core.config.AbstractProjectConfig
import io.kotest.core.spec.IsolationMode
import io.kotest.core.spec.style.ShouldSpec
import kotlinx.coroutines.delay
import java.time.LocalDateTime
import kotlin.time.ExperimentalTime
import kotlin.time.TimeMark
import kotlin.time.TimeSource

@OptIn(ExperimentalTime::class)

jschneidereit

Railway Oriented Programming and F# Result

Full source: https://gist.github.com/mrange/aa9e0898492b6d384dd839bc4a2f96a1

Option<_> is great for ROP (Railway Oriented Programming) but we get no info on what went wrong (the failure value is None which carries no info).

With the introduction F# 4.1 we got Result<_, _> a "smarter" Option<_> as it allows us to pass a failure value.

However, when one inspects the signature of Result.bind one sees a potential issue for ROP: