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/*
* Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
* that can be found in the license/LICENSE.txt file.
*/
package test.collections
import test.collections.behaviors.*
import kotlin.test.*
class AbstractCollectionsTest {
class ReadOnlyCollection : AbstractCollection<String>() {
private val data = arrayOf("ok")
override val size: Int get() = 1
override fun iterator(): Iterator<String> = data.iterator()
}
class ReadOnlySet : AbstractSet<String>() {
private val data = arrayOf("ok")
override val size: Int get() = 1
override fun iterator(): Iterator<String> = data.iterator()
}
class ReadOnlyList(override val size: Int = 1) : AbstractList<String>() {
override fun get(index: Int): String = index.takeIf { it in indices }?.let { "ok" } ?: throw IndexOutOfBoundsException()
}
class ReadOnlyMap : AbstractMap<String, Int>() {
override val entries: Set<Map.Entry<String, Int>> = mapOf("ok" to 42).entries
}
@Test
fun abstractCollection() {
val coll = ReadOnlyCollection()
assertEquals(listOf("ok"), coll.toList())
compare(coll.toList(), coll) {
collectionBehavior()
}
}
@Test
fun abstractSet() {
val set = ReadOnlySet()
assertEquals(1, set.size)
assertTrue("ok" in set)
compare(set.toSet(), set) {
setBehavior()
}
}
@Test
fun abstractList() {
val list = ReadOnlyList(4)
assertEquals(listOf("ok", "ok", "ok", "ok"), list)
compare(list.toList(), list) {
listBehavior()
}
}
@Test
fun abstractMap() {
val map = ReadOnlyMap()
assertEquals(1, map.size)
assertTrue(map.contains("ok"))
assertTrue(map.containsValue(42))
assertEquals(setOf("ok"), map.keys)
assertEquals(listOf(42), map.values.toList())
compare(map.toMap(), map) {
mapBehavior()
}
}
class MutColl(val storage: MutableCollection<String> = mutableListOf()) : AbstractMutableCollection<String>() {
override val size: Int get() = storage.size
override fun iterator(): MutableIterator<String> = storage.iterator()
override fun add(element: String): Boolean = storage.add(element)
}
class MutList(val storage: MutableList<String> = mutableListOf()) : AbstractMutableList<String>() {
override val size: Int get() = storage.size
override fun get(index: Int): String = storage.get(index)
override fun add(index: Int, element: String) = storage.add(index, element)
override fun removeAt(index: Int): String = storage.removeAt(index)
override fun set(index: Int, element: String): String = storage.set(index, element)
}
class MutSet(val storage: MutableSet<String> = mutableSetOf<String>()) : AbstractMutableSet<String>() {
override val size: Int get() = storage.size
override fun iterator(): MutableIterator<String> = storage.iterator()
override fun add(element: String): Boolean = storage.add(element)
}
class MutMap(val storage: MutableMap<String, Int> = mutableMapOf()) : AbstractMutableMap<String, Int>() {
override fun put(key: String, value: Int): Int? = storage.put(key, value)
override val entries: MutableSet<MutableMap.MutableEntry<String, Int>> get() = storage.entries
}
@Test
fun abstractMutableCollection() {
val coll = MutColl()
coll += "ok"
coll += "test"
coll.removeAll { it.length > 2 }
assertEquals(1, coll.size)
assertEquals(listOf("ok"), coll.toList())
compare(coll.storage, coll) {
collectionBehavior()
}
}
@Test
fun abstractMutableList() {
val list = MutList()
list += "test"
list += "ok"
list += "element"
val subList = list.subList(0, 2)
subList.retainAll { it.length <= 2 }
assertEquals(listOf("ok", "element"), list)
compare(list.storage, list) {
listBehavior()
}
}
@Test
fun abstractMutableSet() {
val set = MutSet()
set.addAll(listOf("ok", "test", "element", "test"))
set.removeAll { it.length < 4 }
assertEquals(2, set.size)
assertEquals(setOf("element", "test"), set)
compare(set.storage, set) {
setBehavior()
}
}
@Test
fun abstractMutableMap() {
val map = MutMap()
for (e in 'a'..'z') map[e.toString()] = e.toInt()
assertEquals(26, map.size)
map.remove("a")
map.keys.remove("b")
map.keys.removeAll { it == "c" }
map.values.remove('d'.toInt())
assertTrue(map.containsKey("e"))
assertTrue(map.containsValue('f'.toInt()))
compare(map.storage, map) {
mapBehavior()
}
}
}
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