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ZIO Test: Handle Keys With Small Domain In Gen#mapOf #7832

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Merged
merged 1 commit into from
Feb 15, 2023
Merged

ZIO Test: Handle Keys With Small Domain In Gen#mapOf #7832

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5 changes: 5 additions & 0 deletions test-tests/shared/src/test/scala/zio/test/GenSpec.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -737,6 +737,11 @@ object GenSpec extends ZIOBaseSpec {
for {
_ <- Gen.listOfN(1024)(Gen.byte).runHead
} yield assertCompletes
},
test("map of keys with small domain") {
check(Gen.mapOf(Gen.boolean, Gen.boolean)) { map =>
assert(map)(anything)
}
}
)
}
6 changes: 3 additions & 3 deletions test/shared/src/main/scala/zio/test/Gen.scala
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Expand Up @@ -569,15 +569,15 @@ object Gen extends GenZIO with FunctionVariants with TimeVariants {
def mapOf[R, A, B](key: Gen[R, A], value: Gen[R, B])(implicit
trace: Trace
): Gen[R, Map[A, B]] =
small(mapOfN(_)(key, value))
listOf(key.zip(value)).map(_.toMap)

/**
* A sized generator of non-empty maps.
*/
def mapOf1[R, A, B](key: Gen[R, A], value: Gen[R, B])(implicit
trace: Trace
): Gen[R, Map[A, B]] =
small(mapOfN(_)(key, value), 1)
listOf1(key.zip(value)).map(_.toMap)

/**
* A generator of maps of the specified size.
Expand All @@ -593,7 +593,7 @@ object Gen extends GenZIO with FunctionVariants with TimeVariants {
def mapOfBounded[R, A, B](min: Int, max: Int)(key: Gen[R, A], value: Gen[R, B])(implicit
trace: Trace
): Gen[R, Map[A, B]] =
bounded(min, max)(mapOfN(_)(key, value))
mapOfN(min)(key, value).zipWith(listOfBounded(0, max - min)(key.zip(value)))(_ ++ _)

/**
* A sized generator that uses an exponential distribution of size values. The
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