Alexander Shabalin
218 lines
8.7 KiB
Kotlin
218 lines
8.7 KiB
Kotlin
/*
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* Copyright 2010-2023 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.text
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import kotlin.test.*
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// Native-specific part of stdlib/test/text/StringBuilderTest.kt
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class StringBuilderNativeTest {
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@Test
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fun insertCharSequence() {
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StringBuilder("my insert CharSequence test").let { sb ->
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sb.insert(0, null as CharSequence?)
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assertEquals("nullmy insert CharSequence test", sb.toString())
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sb.insert(2, null as CharSequence?)
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assertEquals("nunullllmy insert CharSequence test", sb.toString())
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sb.insert(sb.length, null as CharSequence?)
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assertEquals("nunullllmy insert CharSequence testnull", sb.toString())
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sb.insert(2, "12" as CharSequence)
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assertEquals("nu12nullllmy insert CharSequence testnull", sb.toString())
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sb.insert(sb.length, "12" as CharSequence)
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assertEquals("nu12nullllmy insert CharSequence testnull12", sb.toString())
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}
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}
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@Test
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fun insertString() {
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StringBuilder("my insert String test").let { sb ->
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sb.insertRange(0, "1234", 0, 0)
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assertEquals("my insert String test", sb.toString())
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sb.insertRange(0, "1234", 0, 1)
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assertEquals("1my insert String test", sb.toString())
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sb.insertRange(0, "1234", 1, 3)
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assertEquals("231my insert String test", sb.toString())
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sb.insertRange(2, "1234", 0, 0)
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assertEquals("231my insert String test", sb.toString())
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sb.insertRange(2, "1234", 0, 1)
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assertEquals("2311my insert String test", sb.toString())
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sb.insertRange(2, "1234", 1, 3)
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assertEquals("232311my insert String test", sb.toString())
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sb.insertRange(sb.length, "1234", 0, 0)
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assertEquals("232311my insert String test", sb.toString())
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sb.insertRange(sb.length, "1234", 0, 1)
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assertEquals("232311my insert String test1", sb.toString())
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sb.insertRange(sb.length, "1234", 1, 3)
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assertEquals("232311my insert String test123", sb.toString())
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assertFailsWith<IndexOutOfBoundsException> { sb.insert(-1, "_") }
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assertFailsWith<IndexOutOfBoundsException> { sb.insert(sb.length + 1, "_") }
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assertFails { sb.insertRange(0, "null", -1, 0) }
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assertFails { sb.insertRange(0, "null", 0, 5) }
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assertFails { sb.insertRange(0, "null", 2, 1) }
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}
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}
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@Test
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fun insertByte() {
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StringBuilder().let { sb ->
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sb.insert(0, 42.toByte())
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assertEquals("42", sb.toString())
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sb.insert(0, 13.toByte())
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assertEquals("1342", sb.toString())
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sb.insert(3, -1.toByte())
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assertEquals("134-12", sb.toString())
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assertFailsWith<IndexOutOfBoundsException> { sb.insert(-1, 42.toByte()) }
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assertFailsWith<IndexOutOfBoundsException> { sb.insert(sb.length + 1, 42.toByte()) }
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}
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}
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@Test
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fun insertShort() {
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StringBuilder().let { sb ->
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sb.insert(0, 42.toShort())
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assertEquals("42", sb.toString())
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sb.insert(0, 13.toShort())
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assertEquals("1342", sb.toString())
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sb.insert(3, -1.toShort())
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assertEquals("134-12", sb.toString())
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assertFailsWith<IndexOutOfBoundsException> { sb.insert(-1, 42.toShort()) }
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assertFailsWith<IndexOutOfBoundsException> { sb.insert(sb.length + 1, 42.toShort()) }
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}
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}
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@Test
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fun insertInt() {
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StringBuilder().let { sb ->
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sb.insert(0, 42.toInt())
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assertEquals("42", sb.toString())
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sb.insert(0, 13.toInt())
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assertEquals("1342", sb.toString())
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sb.insert(3, -1.toInt())
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assertEquals("134-12", sb.toString())
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assertFailsWith<IndexOutOfBoundsException> { sb.insert(-1, 42.toInt()) }
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assertFailsWith<IndexOutOfBoundsException> { sb.insert(sb.length + 1, 42.toInt()) }
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}
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}
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@Test
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fun insertLong() {
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StringBuilder().let { sb ->
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sb.insert(0, 42.toLong())
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assertEquals("42", sb.toString())
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sb.insert(0, 13.toLong())
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assertEquals("1342", sb.toString())
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sb.insert(3, -1.toLong())
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assertEquals("134-12", sb.toString())
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assertFailsWith<IndexOutOfBoundsException> { sb.insert(-1, 42.toLong()) }
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assertFailsWith<IndexOutOfBoundsException> { sb.insert(sb.length + 1, 42.toLong()) }
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}
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}
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@Test
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fun insertFloat() {
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StringBuilder().let { sb ->
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sb.insert(0, 42.2.toFloat())
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assertEquals("42.2", sb.toString())
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sb.insert(0, 13.1.toFloat())
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assertEquals("13.142.2", sb.toString())
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sb.insert(3, -1.toFloat())
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assertEquals("13.-1.0142.2", sb.toString())
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assertFailsWith<IndexOutOfBoundsException> { sb.insert(-1, 42.2.toFloat()) }
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assertFailsWith<IndexOutOfBoundsException> { sb.insert(sb.length + 1, 42.2.toFloat()) }
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}
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}
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@Test
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fun insertDouble() {
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StringBuilder().let { sb ->
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sb.insert(0, 42.2.toDouble())
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assertEquals("42.2", sb.toString())
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sb.insert(0, 13.1.toDouble())
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assertEquals("13.142.2", sb.toString())
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sb.insert(3, -1.toDouble())
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assertEquals("13.-1.0142.2", sb.toString())
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assertFailsWith<IndexOutOfBoundsException> { sb.insert(-1, 42.2.toDouble()) }
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assertFailsWith<IndexOutOfBoundsException> { sb.insert(sb.length + 1, 42.2.toDouble()) }
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}
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}
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@Test
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fun testReverse() {
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val sb = StringBuilder("123456")
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assertTrue(sb === sb.reverse())
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assertEquals("654321", sb.toString())
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sb.setLength(1)
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assertEquals("6", sb.toString())
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sb.setLength(0)
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assertEquals("", sb.toString())
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}
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@Test
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fun testDoubleReverse() {
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fun assertReversed(original: String, reversed: String, reversedBack: String = original) {
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assertEquals(reversed, StringBuilder(original).reverse().toString())
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assertEquals(reversedBack, StringBuilder(reversed).reverse().toString())
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}
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assertReversed("a", "a")
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assertReversed("ab", "ba")
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assertReversed("abcdef", "fedcba")
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assertReversed("abcdefg", "gfedcba")
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assertReversed("\ud800\udc00", "\ud800\udc00")
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assertReversed("\udc00\ud800", "\ud800\udc00", "\ud800\udc00")
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assertReversed("a\ud800\udc00", "\ud800\udc00a")
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assertReversed("ab\ud800\udc00", "\ud800\udc00ba")
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assertReversed("abc\ud800\udc00", "\ud800\udc00cba")
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assertReversed("\ud800\udc00\udc01\ud801\ud802\udc02", "\ud802\udc02\ud801\udc01\ud800\udc00", "\ud800\udc00\ud801\udc01\ud802\udc02")
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assertReversed("\ud800\udc00\ud801\udc01\ud802\udc02", "\ud802\udc02\ud801\udc01\ud800\udc00")
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assertReversed("\ud800\udc00\udc01\ud801a", "a\ud801\udc01\ud800\udc00", "\ud800\udc00\ud801\udc01a")
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assertReversed("a\ud800\udc00\ud801\udc01", "\ud801\udc01\ud800\udc00a")
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assertReversed("\ud800\udc00\udc01\ud801ab", "ba\ud801\udc01\ud800\udc00", "\ud800\udc00\ud801\udc01ab")
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assertReversed("ab\ud800\udc00\ud801\udc01", "\ud801\udc01\ud800\udc00ba")
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assertReversed("\ud800\udc00\ud801\udc01", "\ud801\udc01\ud800\udc00")
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assertReversed("a\ud800\udc00z\ud801\udc01", "\ud801\udc01z\ud800\udc00a")
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assertReversed("a\ud800\udc00bz\ud801\udc01", "\ud801\udc01zb\ud800\udc00a")
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assertReversed("abc\ud802\udc02\ud801\udc01\ud800\udc00", "\ud800\udc00\ud801\udc01\ud802\udc02cba")
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assertReversed("abcd\ud802\udc02\ud801\udc01\ud800\udc00", "\ud800\udc00\ud801\udc01\ud802\udc02dcba")
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}
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@Test
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fun appendLong() {
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val times = 100
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val expected = (12345678L until (12345678L + times)).fold("") { res, idx -> res + idx }
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val sb = StringBuilder()
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repeat(times) { sb.append(12345678L + it) }
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assertEquals(expected, sb.toString())
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val cornerCase = listOf(0L, -1L, Long.MIN_VALUE, Long.MAX_VALUE)
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val expectedCornerCase = cornerCase.fold("") { res, e -> res + e }
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for (v in cornerCase) sb.append(v)
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assertEquals(expected + expectedCornerCase, sb.toString())
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}
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@Test
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fun appendNullCharSequence() {
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val sb = StringBuilder()
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sb.append(null as CharSequence?)
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assertEquals("null", sb.toString())
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}
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@Test
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fun appendLine() {
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val sb = StringBuilder()
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sb.appendLine("abc").appendLine(42).appendLine(0.1)
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assertEquals("abc\n42\n0.1\n", sb.toString())
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}
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} |