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/*
* Copyright 2010-2018 JetBrains s.r.o. and Kotlin Programming Language contributors.
* 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.text
import test.*
import kotlin.test.*
class StringNumberConversionTest {
@Test fun toBoolean() {
assertEquals(true, "true".toBoolean())
assertEquals(true, "True".toBoolean())
assertEquals(false, "false".toBoolean())
assertEquals(false, "not so true".toBoolean())
assertEquals(false, (null as String?).toBoolean())
}
@Test fun toByte() {
compareConversion({it.toByte()}, {it.toByteOrNull()}) {
assertProduces("127", Byte.MAX_VALUE)
assertProduces("+77", 77.toByte())
assertProduces("-128", Byte.MIN_VALUE)
assertFailsOrNull("128")
assertFailsOrNull("")
assertFailsOrNull(" ")
}
compareConversionWithRadix(String::toByte, String::toByteOrNull) {
assertProduces(16, "7a", 0x7a.toByte())
assertProduces(16, "+7F", 127.toByte())
assertProduces(16, "-80", (-128).toByte())
assertFailsOrNull(2, "10000000")
assertFailsOrNull(8, "")
assertFailsOrNull(8, " ")
}
}
@Test fun toShort() {
compareConversion({it.toShort()}, {it.toShortOrNull()}) {
assertProduces("+77", 77.toShort())
assertProduces("32767", Short.MAX_VALUE)
assertProduces("-32768", Short.MIN_VALUE)
assertFailsOrNull("+32768")
assertFailsOrNull("")
assertFailsOrNull(" ")
}
compareConversionWithRadix(String::toShort, String::toShortOrNull) {
assertProduces(16, "7FFF", 0x7FFF.toShort())
assertProduces(16, "-8000", (-0x8000).toShort())
assertFailsOrNull(5, "10000000")
assertFailsOrNull(2, "")
assertFailsOrNull(2, " ")
}
}
@Test fun toInt() {
compareConversion({it.toInt()}, {it.toIntOrNull()}) {
assertProduces("77", 77)
assertProduces("+2147483647", Int.MAX_VALUE)
assertProduces("-2147483648", Int.MIN_VALUE)
assertFailsOrNull("2147483648")
assertFailsOrNull("-2147483649")
assertFailsOrNull("239239kotlin")
assertFailsOrNull("")
assertFailsOrNull(" ")
}
compareConversionWithRadix(String::toInt, String::toIntOrNull) {
assertProduces(10, "0", 0)
assertProduces(10, "473", 473)
assertProduces(10, "+42", 42)
assertProduces(10, "-0", 0)
assertProduces(10, "2147483647", 2147483647)
assertProduces(10, "-2147483648", -2147483648)
assertProduces(16, "-FF", -255)
assertProduces(16, "-ff", -255)
assertProduces(2, "1100110", 102)
assertProduces(27, "Kona", 411787)
assertFailsOrNull(10, "2147483648")
assertFailsOrNull(8, "99")
assertFailsOrNull(10, "Kona")
assertFailsOrNull(16, "")
assertFailsOrNull(16, " ")
}
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 1") { "1".toInt(radix = 1) }
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 37") { "37".toIntOrNull(radix = 37) }
}
@Test fun toLong() {
compareConversion({it.toLong()}, {it.toLongOrNull()}) {
assertProduces("77", 77.toLong())
assertProduces("+9223372036854775807", Long.MAX_VALUE)
assertProduces("-9223372036854775808", Long.MIN_VALUE)
assertFailsOrNull("9223372036854775808")
assertFailsOrNull("-9223372036854775809")
assertFailsOrNull("922337 75809")
assertFailsOrNull("92233,75809")
assertFailsOrNull("92233`75809")
assertFailsOrNull("-922337KOTLIN775809")
assertFailsOrNull("")
assertFailsOrNull(" ")
}
compareConversionWithRadix(String::toLong, String::toLongOrNull) {
assertProduces(10, "0", 0L)
assertProduces(10, "473", 473L)
assertProduces(10, "+42", 42L)
assertProduces(10, "-0", 0L)
assertProduces(16, "7F11223344556677", 0x7F11223344556677)
assertProduces(16, "+7faabbccddeeff00", 0x7faabbccddeeff00)
assertProduces(16, "-8000000000000000", Long.MIN_VALUE)
assertProduces(2, "1100110", 102L)
assertProduces(36, "Hazelnut", 1356099454469L)
assertFailsOrNull(8, "99")
assertFailsOrNull(10, "Hazelnut")
assertFailsOrNull(4, "")
assertFailsOrNull(4, " ")
}
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 37") { "37".toLong(radix = 37) }
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 1") { "1".toLongOrNull(radix = 1) }
}
@Test fun toDouble() {
compareConversion(String::toDouble, String::toDoubleOrNull, ::doubleTotalOrderEquals) {
assertProduces("-77", -77.0)
assertProduces("77.", 77.0)
assertProduces("77.0", 77.0)
assertProduces("-1.77", -1.77)
assertProduces("+.77", 0.77)
assertProduces("\t-77 \n", -77.0)
assertProduces("7.7e1", 77.0)
assertProduces("+770e-1", 77.0)
assertProduces("-NaN", -Double.NaN)
assertProduces("+Infinity", Double.POSITIVE_INFINITY)
assertFailsOrNull("7..7")
assertFailsOrNull("007 not a number")
assertFailsOrNull("")
assertFailsOrNull(" ")
}
}
@Test fun toUByte() {
compareConversion({it.toUByte()}, {it.toUByteOrNull()}) {
assertProduces("255", UByte.MAX_VALUE)
assertProduces("+77", 77.toUByte())
assertProduces("128", 128u.toUByte())
assertFailsOrNull("-1")
assertFailsOrNull("256")
assertFailsOrNull("")
assertFailsOrNull(" ")
}
compareConversionWithRadix(String::toUByte, String::toUByteOrNull) {
assertProduces(16, "7a", 0x7a.toUByte())
assertProduces(16, "+8F", 0x8Fu.toUByte())
assertProduces(16, "80", 128u.toUByte())
assertProduces(16, "Ff", 255u.toUByte())
assertFailsOrNull(2, "100000000")
assertFailsOrNull(8, "")
assertFailsOrNull(8, " ")
}
}
@Test fun toUShort() {
compareConversion({it.toUShort()}, {it.toUShortOrNull()}) {
assertProduces("+77", 77.toUShort())
assertProduces("65535", UShort.MAX_VALUE)
assertFailsOrNull("+65536")
assertFailsOrNull("-32768")
assertFailsOrNull("")
assertFailsOrNull(" ")
}
compareConversionWithRadix(String::toUShort, String::toUShortOrNull) {
assertProduces(16, "+7FFF", 0x7FFF.toUShort())
assertProduces(16, "FfFf", UShort.MAX_VALUE)
assertFailsOrNull(16, "-8000")
assertFailsOrNull(5, "10000000")
assertFailsOrNull(2, "")
assertFailsOrNull(2, " ")
}
}
@Test fun toUInt() {
compareConversion({it.toUInt()}, {it.toUIntOrNull()}) {
assertProduces("+77", 77u)
assertProduces("4294967295", UInt.MAX_VALUE)
assertFailsOrNull("-1")
assertFailsOrNull("4294967296")
assertFailsOrNull("42949672940")
assertFailsOrNull("-2147483649")
assertFailsOrNull("239239kotlin")
assertFailsOrNull("")
assertFailsOrNull(" ")
}
@Suppress("SIGNED_CONSTANT_CONVERTED_TO_UNSIGNED")
compareConversionWithRadix(String::toUInt, String::toUIntOrNull) {
assertProduces(10, "0", 0u)
assertProduces(10, "473", 473u)
assertProduces(10, "+42", 42u)
assertProduces(10, "2147483647", 2147483647u)
assertProduces(16, "FF", 255)
assertProduces(16, "ffFFff01", 0u - 255u)
assertProduces(2, "1100110", 102)
assertProduces(27, "Kona", 411787)
assertFailsOrNull(10, "-0")
assertFailsOrNull(10, "42949672940")
assertFailsOrNull(8, "99")
assertFailsOrNull(10, "Kona")
assertFailsOrNull(16, "")
assertFailsOrNull(16, " ")
}
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 1") { "1".toUInt(radix = 1) }
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 37") { "37".toUIntOrNull(radix = 37) }
}
@Test fun toULong() {
compareConversion({it.toULong()}, {it.toULongOrNull()}) {
assertProduces("77", 77uL)
assertProduces("+18446744073709551615", ULong.MAX_VALUE)
assertFailsOrNull("-1")
assertFailsOrNull("18446744073709551616")
assertFailsOrNull("922337 75809")
assertFailsOrNull("92233,75809")
assertFailsOrNull("92233`75809")
assertFailsOrNull("-922337KOTLIN775809")
assertFailsOrNull("")
assertFailsOrNull(" ")
}
compareConversionWithRadix(String::toULong, String::toULongOrNull) {
assertProduces(10, "0", 0uL)
assertProduces(10, "473", 473uL)
assertProduces(10, "+42", 42uL)
assertProduces(16, "7F11223344556677", 0x7F11223344556677uL)
assertProduces(16, "+7faabbccddeeff00", 0x7faabbccddeeff00uL)
assertProduces(16, "8000000000000000", Long.MIN_VALUE.toULong())
assertProduces(16, "FFFFffffFFFFffff", ULong.MAX_VALUE)
assertProduces(2, "1100110", 102uL)
assertProduces(36, "Hazelnut", 1356099454469uL)
assertFailsOrNull(8, "-7")
assertFailsOrNull(8, "99")
assertFailsOrNull(10, "Hazelnut")
assertFailsOrNull(4, "")
assertFailsOrNull(4, " ")
}
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 37") { "37".toULong(radix = 37) }
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 1") { "1".toULongOrNull(radix = 1) }
}
@Test fun byteToStringWithRadix() {
assertEquals("7a", 0x7a.toByte().toString(16))
assertEquals("-80", Byte.MIN_VALUE.toString(radix = 16))
assertEquals("3v", Byte.MAX_VALUE.toString(radix = 32))
assertEquals("-40", Byte.MIN_VALUE.toString(radix = 32))
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 37") { 37.toByte().toString(radix = 37) }
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 1") { 1.toByte().toString(radix = 1) }
}
@Test fun shortToStringWithRadix() {
assertEquals("7FFF", 0x7FFF.toShort().toString(radix = 16).uppercase())
assertEquals("-8000", (-0x8000).toShort().toString(radix = 16))
assertEquals("-sfs", (-29180).toShort().toString(radix = 32))
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 37") { 37.toShort().toString(radix = 37) }
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 1") { 1.toShort().toString(radix = 1) }
}
@Test fun intToStringWithRadix() {
assertEquals("-ff", (-255).toString(radix = 16))
assertEquals("1100110", 102.toString(radix = 2))
assertEquals("kona", 411787.toString(radix = 27))
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 37") { 37.toString(radix = 37) }
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 1") { 1.toString(radix = 1) }
}
@Test fun longToStringWithRadix() {
assertEquals("7f11223344556677", 0x7F11223344556677.toString(radix = 16))
assertEquals("hazelnut", 1356099454469L.toString(radix = 36))
val values = listOf(Int.MAX_VALUE.toLong(), Int.MIN_VALUE.toLong(), Int.MAX_VALUE + 2L, Long.MAX_VALUE, Long.MIN_VALUE)
val expected = listOf(
2 to listOf("1111111111111111111111111111111", "-10000000000000000000000000000000", "10000000000000000000000000000001", "111111111111111111111111111111111111111111111111111111111111111", "-1000000000000000000000000000000000000000000000000000000000000000"),
3 to listOf("12112122212110202101", "-12112122212110202102", "12112122212110202110", "2021110011022210012102010021220101220221", "-2021110011022210012102010021220101220222"),
4 to listOf("1333333333333333", "-2000000000000000", "2000000000000001", "13333333333333333333333333333333", "-20000000000000000000000000000000"),
5 to listOf("13344223434042", "-13344223434043", "13344223434044", "1104332401304422434310311212", "-1104332401304422434310311213"),
6 to listOf("553032005531", "-553032005532", "553032005533", "1540241003031030222122211", "-1540241003031030222122212"),
7 to listOf("104134211161", "-104134211162", "104134211163", "22341010611245052052300", "-22341010611245052052301"),
8 to listOf("17777777777", "-20000000000", "20000000001", "777777777777777777777", "-1000000000000000000000"),
9 to listOf("5478773671", "-5478773672", "5478773673", "67404283172107811827", "-67404283172107811828"),
10 to listOf("2147483647", "-2147483648", "2147483649", "9223372036854775807", "-9223372036854775808"),
11 to listOf("a02220281", "-a02220282", "a02220283", "1728002635214590697", "-1728002635214590698"),
12 to listOf("4bb2308a7", "-4bb2308a8", "4bb2308a9", "41a792678515120367", "-41a792678515120368"),
13 to listOf("282ba4aaa", "-282ba4aab", "282ba4aac", "10b269549075433c37", "-10b269549075433c38"),
14 to listOf("1652ca931", "-1652ca932", "1652ca933", "4340724c6c71dc7a7", "-4340724c6c71dc7a8"),
15 to listOf("c87e66b7", "-c87e66b8", "c87e66b9", "160e2ad3246366807", "-160e2ad3246366808"),
16 to listOf("7fffffff", "-80000000", "80000001", "7fffffffffffffff", "-8000000000000000"),
17 to listOf("53g7f548", "-53g7f549", "53g7f54a", "33d3d8307b214008", "-33d3d8307b214009"),
18 to listOf("3928g3h1", "-3928g3h2", "3928g3h3", "16agh595df825fa7", "-16agh595df825fa8"),
19 to listOf("27c57h32", "-27c57h33", "27c57h34", "ba643dci0ffeehh", "-ba643dci0ffeehi"),
20 to listOf("1db1f927", "-1db1f928", "1db1f929", "5cbfjia3fh26ja7", "-5cbfjia3fh26ja8"),
21 to listOf("140h2d91", "-140h2d92", "140h2d93", "2heiciiie82dh97", "-2heiciiie82dh98"),
22 to listOf("ikf5bf1", "-ikf5bf2", "ikf5bf3", "1adaibb21dckfa7", "-1adaibb21dckfa8"),
23 to listOf("ebelf95", "-ebelf96", "ebelf97", "i6k448cf4192c2", "-i6k448cf4192c3"),
24 to listOf("b5gge57", "-b5gge58", "b5gge59", "acd772jnc9l0l7", "-acd772jnc9l0l8"),
25 to listOf("8jmdnkm", "-8jmdnkn", "8jmdnko", "64ie1focnn5g77", "-64ie1focnn5g78"),
26 to listOf("6oj8ion", "-6oj8ioo", "6oj8iop", "3igoecjbmca687", "-3igoecjbmca688"),
27 to listOf("5ehncka", "-5ehnckb", "5ehnckc", "27c48l5b37oaop", "-27c48l5b37oaoq"),
28 to listOf("4clm98f", "-4clm98g", "4clm98h", "1bk39f3ah3dmq7", "-1bk39f3ah3dmq8"),
29 to listOf("3hk7987", "-3hk7988", "3hk7989", "q1se8f0m04isb", "-q1se8f0m04isc"),
30 to listOf("2sb6cs7", "-2sb6cs8", "2sb6cs9", "hajppbc1fc207", "-hajppbc1fc208"),
31 to listOf("2d09uc1", "-2d09uc2", "2d09uc3", "bm03i95hia437", "-bm03i95hia438"),
32 to listOf("1vvvvvv", "-2000000", "2000001", "7vvvvvvvvvvvv", "-8000000000000"),
33 to listOf("1lsqtl1", "-1lsqtl2", "1lsqtl3", "5hg4ck9jd4u37", "-5hg4ck9jd4u38"),
34 to listOf("1d8xqrp", "-1d8xqrq", "1d8xqrr", "3tdtk1v8j6tpp", "-3tdtk1v8j6tpq"),
35 to listOf("15v22um", "-15v22un", "15v22uo", "2pijmikexrxp7", "-2pijmikexrxp8"),
36 to listOf("zik0zj", "-zik0zk", "zik0zl", "1y2p0ij32e8e7", "-1y2p0ij32e8e8"),
)
for ((base, expectedValues) in expected) {
for ((index, value) in values.withIndex()) {
assertEquals(expectedValues[index], value.toString(base), "$value in base $base")
}
}
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 37") { 37L.toString(radix = 37) }
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 1") { 1L.toString(radix = 1) }
}
@Test fun ubyteToStringWithRadix() {
assertEquals("7a", 0x7a.toUByte().toString(16))
assertEquals("80", Byte.MIN_VALUE.toUByte().toString(radix = 16))
assertEquals("ff", UByte.MAX_VALUE.toString(radix = 16))
assertEquals("40", Byte.MIN_VALUE.toUByte().toString(radix = 32))
assertEquals("7v", UByte.MAX_VALUE.toString(radix = 32))
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 37") { 37.toUByte().toString(radix = 37) }
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 1") { 1.toUByte().toString(radix = 1) }
}
@Test fun ushortToStringWithRadix() {
assertEquals("7FFF", 0x7FFF.toUShort().toString(radix = 16).uppercase())
assertEquals("8000", 0x8000.toUShort().toString(radix = 16))
assertEquals("ffff", UShort.MAX_VALUE.toString(radix = 16))
assertEquals("1ekf", UShort.MAX_VALUE.toString(radix = 36))
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 37") { 37.toUShort().toString(radix = 37) }
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 1") { 1.toUShort().toString(radix = 1) }
}
@Test fun uintToStringWithRadix() {
assertEquals("ffffff01", (-255).toUInt().toString(radix = 16))
assertEquals("ffffffff", UInt.MAX_VALUE.toString(radix = 16))
assertEquals("1100110", 102u.toString(radix = 2))
assertEquals("kona", 411787u.toString(radix = 27))
assertEquals("3vvvvvv", UInt.MAX_VALUE.toString(radix = 32))
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 37") { 37u.toString(radix = 37) }
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 1") { 1u.toString(radix = 1) }
}
@Test fun ulongToStringWithRadix() {
assertEquals("7f11223344556677", 0x7F11223344556677u.toString(radix = 16))
assertEquals("89aabbccddeeff11", 0x89AABBCCDDEEFF11u.toString(radix = 16))
assertEquals("8000000000000000", Long.MIN_VALUE.toULong().toString(radix = 16))
assertEquals("ffffffffffffffff", ULong.MAX_VALUE.toString(radix = 16))
assertEquals("hazelnut", 1356099454469uL.toString(radix = 36))
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 37") { 37uL.toString(radix = 37) }
assertFailsWith<IllegalArgumentException>("Expected to fail with radix 1") { 1uL.toString(radix = 1) }
}
}
internal fun doubleTotalOrderEquals(a: Double?, b: Double?): Boolean = (a as Any?) == b
internal fun <T : Any> compareConversion(
convertOrFail: (String) -> T,
convertOrNull: (String) -> T?,
equality: (T, T?) -> Boolean = { a, b -> a == b },
assertions: ConversionContext<T>.() -> Unit
) {
ConversionContext(convertOrFail, convertOrNull, equality).assertions()
}
internal fun <T : Any> compareConversionWithRadix(
convertOrFail: String.(Int) -> T,
convertOrNull: String.(Int) -> T?,
assertions: ConversionWithRadixContext<T>.() -> Unit
) {
ConversionWithRadixContext(convertOrFail, convertOrNull).assertions()
}
internal class ConversionContext<T : Any>(
val convertOrFail: (String) -> T,
val convertOrNull: (String) -> T?,
val equality: (T, T?) -> Boolean
) {
private fun assertEquals(expected: T, actual: T?, input: String, operation: String) {
assertTrue(equality(expected, actual), "Expected $operation('$input') to produce $expected but was $actual")
}
fun assertProduces(input: String, output: T) {
assertEquals(output, convertOrFail(input.removeLeadingPlusOnJava6()), input, "convertOrFail")
assertEquals(output, convertOrNull(input), input, "convertOrNull")
}
fun assertFailsOrNull(input: String) {
assertFailsWith<NumberFormatException>("Expected to fail on input \"$input\"") { convertOrFail(input) }
assertNull(convertOrNull(input), message = "On input \"$input\"")
}
}
internal class ConversionWithRadixContext<T : Any>(
val convertOrFail: (String, Int) -> T,
val convertOrNull: (String, Int) -> T?
) {
fun assertProduces(radix: Int, input: String, output: T) {
assertEquals(output, convertOrFail(input.removeLeadingPlusOnJava6(), radix))
assertEquals(output, convertOrNull(input, radix))
}
fun assertFailsOrNull(radix: Int, input: String) {
assertFailsWith<NumberFormatException>("Expected to fail on input \"$input\" with radix $radix",
{ convertOrFail(input, radix) })
assertNull(convertOrNull(input, radix), message = "On input \"$input\" with radix $radix")
}
}