Abduqodiri Qurbonzoda
40 lines
1.3 KiB
Kotlin
40 lines
1.3 KiB
Kotlin
/*
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* Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
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* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
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*/
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package test.collections
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import kotlin.test.assertEquals
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import kotlin.test.assertFails
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import kotlin.test.Test
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class MapBuilderTest {
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@Test
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fun capacityOverflow() {
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val builderSize = 15
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val giantMapSize = Int.MAX_VALUE - builderSize + 1
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val giantMap = object : AbstractMap<Int, String>() {
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override val entries: Set<Map.Entry<Int, String>> = object : AbstractSet<Map.Entry<Int, String>>() {
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override val size: Int get() = giantMapSize
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override fun iterator(): Iterator<Map.Entry<Int, String>> {
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return indexSequence().map {
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object : Map.Entry<Int, String> {
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override val key: Int get() = it
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override val value: String get() = "value"
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}
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}.take(size).iterator()
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}
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}
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}
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buildMap {
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repeat(builderSize) { put(-it, "value") }
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assertFails { putAll(giantMap) }
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assertEquals(builderSize, size)
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}
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}
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} |