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/*
* Copyright 2010-2019 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 kotlin.test.Test
import kotlin.test.assertTrue
import kotlin.test.assertEquals
import kotlin.test.assertFailsWith
class UArrayJVMTest {
@Test
fun binarySearch() {
fun <A, E> testFailures(array: A, binarySearch: A.(E, Int, Int) -> Int, element: E, arraySize: Int) {
assertFailsWith<IllegalArgumentException> {
array.binarySearch(element, 1, 0)
}
assertFailsWith<IndexOutOfBoundsException> {
array.binarySearch(element, 1, arraySize + 1)
}
assertFailsWith<IndexOutOfBoundsException> {
array.binarySearch(element, -1, 1)
}
}
val array = uintArrayOf(1u, 0u, 4u, 5u, 8u, 12u, 2u, 3u, 7u, 7u, 7u, 9u, 2u)
testFailures(array.toUByteArray(), UByteArray::binarySearch, 0u, array.size)
testFailures(array.toUShortArray(), UShortArray::binarySearch, 0u, array.size)
testFailures(array, UIntArray::binarySearch, 0u, array.size)
testFailures(array.toULongArray(), ULongArray::binarySearch, 0u, array.size)
fun <A, E> test(
array: A,
binarySearch: A.(E, Int, Int) -> Int,
operations: List<OperationOnRange<UInt, Int>>,
transform: UInt.() -> E
) {
operations.forEach { o ->
val result = array.binarySearch(o.element.transform(), o.fromIndex, o.toIndex)
assertEquals(o.expectedResult, result)
}
}
val operations = listOf(
OperationOnRange(0u, 1, 6, 1),
OperationOnRange(12u, 1, 6, 5),
OperationOnRange(8u, 1, 6, 4),
OperationOnRange(4u, 1, 6, 2),
OperationOnRange(5u, 2, 6, 3),
OperationOnRange(8u, 2, 5, 4),
OperationOnRange(5u, 3, 4, 3),
OperationOnRange(5u, 3, 3, -4),
OperationOnRange(7u, 1, 6, -5),
OperationOnRange(8u, 6, 12, -12),
OperationOnRange(5u, 6, 12, -9),
OperationOnRange(7u, 6, 12, 8)
)
test(array.toUByteArray(), UByteArray::binarySearch, operations, UInt::toUByte)
test(array.toUShortArray(), UShortArray::binarySearch, operations, UInt::toUShort)
test(array, UIntArray::binarySearch, operations, UInt::toUInt)
test(array.toULongArray(), ULongArray::binarySearch, operations, UInt::toULong)
}
@Test
fun fill() {
fun <A, E> testFailures(array: A, fill: A.(E, Int, Int) -> Unit, element: E, arraySize: Int) {
assertFailsWith<ArrayIndexOutOfBoundsException> {
array.fill(element, -1, arraySize)
}
assertFailsWith<ArrayIndexOutOfBoundsException> {
array.fill(element, 0, arraySize + 1)
}
assertFailsWith<IllegalArgumentException> {
array.fill(element, 1, 0)
}
}
testFailures(UByteArray(5) { it.toUByte() }, UByteArray::fill, 0u, 5)
testFailures(UShortArray(5) { it.toUShort() }, UShortArray::fill, 0u, 5)
testFailures(UIntArray(5) { it.toUInt() }, UIntArray::fill, 0u, 5)
testFailures(ULongArray(5) { it.toULong() }, ULongArray::fill, 0u, 5)
fun <A, E> test(
array: UIntArray,
fill: A.(E, Int, Int) -> Unit,
operations: List<OperationOnRange<UInt, UIntArray>>,
arrayTransform: UIntArray.() -> A,
elementTransform: UInt.() -> E,
contentEquals: A.(A) -> Boolean
) {
for (o in operations) {
val result = array.arrayTransform()
result.fill(o.element.elementTransform(), o.fromIndex, o.toIndex)
assertTrue(o.expectedResult.arrayTransform().contentEquals(result))
}
}
val array = UIntArray(5) { it.toUInt() }
val operations = listOf(
OperationOnRange(5u, 1, 4, uintArrayOf(0u, 5u, 5u, 5u, 4u)),
OperationOnRange(1u, 0, 5, uintArrayOf(1u, 1u, 1u, 1u, 1u)),
OperationOnRange(2u, 0, 3, uintArrayOf(2u, 2u, 2u, 3u, 4u)),
OperationOnRange(3u, 2, 5, uintArrayOf(0u, 1u, 3u, 3u, 3u))
)
test(array, UByteArray::fill, operations, UIntArray::toUByteArray, UInt::toUByte, UByteArray::contentEquals)
test(array, UShortArray::fill, operations, UIntArray::toUShortArray, UInt::toUShort, UShortArray::contentEquals)
test(array, UIntArray::fill, operations, UIntArray::copyOf, UInt::toUInt, UIntArray::contentEquals)
test(array, ULongArray::fill, operations, UIntArray::toULongArray, UInt::toULong, ULongArray::contentEquals)
}
}
private class OperationOnRange<E, R>(
val element: E,
val fromIndex: Int,
val toIndex: Int,
val expectedResult: R
)
private fun UIntArray.toUByteArray(): UByteArray {
return UByteArray(size) { get(it).toUByte() }
}
private fun UIntArray.toUShortArray(): UShortArray {
return UShortArray(size) { get(it).toUShort() }
}
private fun UIntArray.toULongArray(): ULongArray {
return ULongArray(size) { get(it).toULong() }
}
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