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Implement reduceIndexedOrNull and reduceRightIndexedOrNull #KT-36866

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This commit is contained in:
Abduqodiri Qurbonzoda
2020-03-06 13:49:22 +03:00
parent b60633d79a
commit b1fac4e721
13 changed files with 964 additions and 0 deletions
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libraries/stdlib/test/collections/UnsignedArraysTest.kt
+20
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@@ -548,6 +548,16 @@ class UnsignedArraysTest {
}
}
@Test
fun reduceIndexedOrNull() {
expect(1u) { ubyteArrayOf(3, 2, 1).reduceIndexedOrNull { index, acc, e -> if (index != 2) (e - acc).toUByte() else e } }
expect(1u) { ushortArrayOf(3, 2, 1).reduceIndexedOrNull { index, acc, e -> if (index != 2) (e - acc).toUShort() else e } }
expect(UInt.MAX_VALUE) { uintArrayOf(1, 2, 3).reduceIndexedOrNull { index, acc, e -> index.toUInt() + acc - e } }
expect(ULong.MAX_VALUE) { ulongArrayOf(1, 2, 3).reduceIndexedOrNull { index, acc, e -> index.toULong() + acc - e } }
expect(null, { uintArrayOf().reduceIndexedOrNull { index, acc, e -> index.toUInt() + e + acc } })
}
@Test
fun reduceRight() {
expect(2u) { ubyteArrayOf(1, 2, 3).reduceRightOrNull { e, acc -> (e - acc).toUByte() } }
@@ -582,6 +592,16 @@ class UnsignedArraysTest {
}
}
@Test
fun reduceRightIndexedOrNull() {
expect(1u) { ubyteArrayOf(3, 2, 1).reduceRightIndexedOrNull { index, e, acc -> if (index != 1) (e - acc).toUByte() else e } }
expect(1u) { ushortArrayOf(3, 2, 1).reduceRightIndexedOrNull { index, e, acc -> if (index != 1) (e - acc).toUShort() else e } }
expect(1u) { uintArrayOf(1, 2, 3).reduceRightIndexedOrNull { index, e, acc -> index.toUInt() + e - acc } }
expect(1uL) { ulongArrayOf(1, 2, 3).reduceRightIndexedOrNull { index, e, acc -> index.toULong() + e - acc } }
expect(null, { uintArrayOf().reduceRightIndexedOrNull { index, e, acc -> index.toUInt() + e + acc } })
}
@Test
fun forEach() {
var i = 0