Vladimir Sukharev
21 lines
358 B
Kotlin
Vendored
21 lines
358 B
Kotlin
Vendored
import kotlin.test.*
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import kotlin.contracts.*
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open class S
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class P(val str: String = "P") : S()
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@OptIn(kotlin.contracts.ExperimentalContracts::class)
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fun check(actual: Boolean) {
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contract { returns() implies actual }
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assertTrue(actual)
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}
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fun box(): String {
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val s: S = P()
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require(s is P)
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assertEquals(s.str, "P")
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return "OK"
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}
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