jvmTest.com.sksamuel.kotest.ExtractTest.kt Maven / Gradle / Ivy

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package com.sksamuel.kotest

import io.kotest.assertions.extracting
import io.kotest.assertions.throwables.shouldThrowAny
import io.kotest.core.spec.style.WordSpec
import io.kotest.matchers.collections.shouldContainAll
import io.kotest.matchers.shouldBe

class ExtractTest : WordSpec() {
  init {

    data class Person(val name: String, val age: Int, val friends: List)

    val p1 = Person("John Doe", 20, emptyList())
    val p2 = Person("Samantha Rose", 19, listOf(p1))
    val persons = listOf(p1, p2)

    "extracting" should {
      "extract simple properties"{
        extracting(persons) { name }
            .shouldContainAll("John Doe", "Samantha Rose")
      }

      "extract complex properties"{
        extracting(persons) { Pair(name, age) }
            .shouldContainAll(
                Pair("John Doe", 20),
                Pair("Samantha Rose", 19)
            )
      }
      "fail if the matcher fails"{
        shouldThrowAny {
          extracting(persons) { name }
              .shouldContainAll("")
        }.message shouldBe """Collection should contain all of [""] but was missing [""]"""
      }

    }
  }
}