commonMain.io.kotest.matchers.collections.duplicates.kt Maven / Gradle / Ivy

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package io.kotest.matchers.collections

import io.kotest.matchers.Matcher
import io.kotest.matchers.MatcherResult
import io.kotest.matchers.should
import io.kotest.matchers.shouldNot

fun  Iterable.shouldContainDuplicates(): Iterable {
   toList().shouldContainDuplicates()
   return this
}

fun  Array.shouldContainDuplicates() {
   asList().shouldContainDuplicates()
}

fun  Collection.shouldContainDuplicates(): Collection {
   this should containDuplicates()
   return this
}

fun  Iterable.shouldNotContainDuplicates(): Iterable {
   toList().shouldNotContainDuplicates()
   return this
}

fun  Array.shouldNotContainDuplicates(): Array {
   asList().shouldNotContainDuplicates()
   return this
}

fun  Collection.shouldNotContainDuplicates(): Collection {
   this shouldNot containDuplicates()
   return this
}

fun  containDuplicates() = object : Matcher> {
   override fun test(value: Collection) = MatcherResult(
      value.toSet().size < value.size,
      { "Collection should contain duplicates" },
      {
         "Collection should not contain duplicates"
      })
}