Files
kotlin-fork/backend.native/tests/external/stdlib/OrderingTest/combineComparators.kt
T
Ilya Matveev 85827b4880 tests: Copy stdlib tests from Kotlin/JVM
This patch copies Kotlin/JVM stdlib tests (libraries/stdlib/test)
excepting ones with explicit java dependencies. It also transforms
the tests to use them as box-tests.
2017-04-07 17:21:11 +07:00

27 lines
905 B
Kotlin

import kotlin.test.*
import kotlin.comparisons.*
data class Item(val name: String, val rating: Int) : Comparable<Item> {
public override fun compareTo(other: Item): Int {
return compareValuesBy(this, other, { it.rating }, { it.name })
}
}
val v1 = Item("wine", 9)
val v2 = Item("beer", 10)
val v3 = Item("apple", 20)
fun box() {
val byName = compareBy<Item> { it.name }
val byRating = compareBy<Item> { it.rating }
val v3 = Item(v1.name, v1.rating + 1)
val v4 = Item(v2.name + "_", v2.rating)
assertTrue((byName then byRating).compare(v1, v2) > 0)
assertTrue((byName then byRating).compare(v1, v3) < 0)
assertTrue((byName thenDescending byRating).compare(v1, v3) > 0)
assertTrue((byRating then byName).compare(v1, v2) < 0)
assertTrue((byRating then byName).compare(v4, v2) > 0)
assertTrue((byRating thenDescending byName).compare(v4, v2) < 0)
}