nikita.movshin
65244b4bea
Change the copyright from "JetBrains s.r.o." to "JetBrains s.r.o. and Kotlin Project contributors" Update only 2 lines copyright.
78 lines
3.0 KiB
Kotlin
78 lines
3.0 KiB
Kotlin
/*
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* Copyright 2010-2018 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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import test.collections.compare
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import test.io.*
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import java.util.regex.Pattern
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class RegexJVMTest {
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@Test fun matchGroups() {
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val input = "1a 2b 3"
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val regex = "(\\d)(\\w)?".toRegex()
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val matches = regex.findAll(input).toList()
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assertTrue(matches.all { it.groups.size == 3 })
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val (m1, m2, m3) = matches
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assertEquals("1a", m1.groups[0]?.value)
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assertEquals(0..1, m1.groups[0]?.range)
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assertEquals("1", m1.groups[1]?.value)
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assertEquals(0..0, m1.groups[1]?.range)
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assertEquals("a", m1.groups[2]?.value)
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assertEquals(1..1, m1.groups[2]?.range)
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assertEquals("2", m2.groups[1]?.value)
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assertEquals(3..3, m2.groups[1]?.range)
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assertEquals("b", m2.groups[2]?.value)
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assertEquals(4..4, m2.groups[2]?.range)
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assertEquals("3", m3.groups[1]?.value)
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assertNull(m3.groups[2])
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}
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@Test fun matchSequenceWithLookbehind() {
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val input = "123_000 456 789"
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val pattern = "(?<=^|\\s)\\d+_?".toRegex()
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val matches = pattern.findAll(input)
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val values = matches.map { it.value }
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val expected = listOf("123_", "456", "789")
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assertEquals(expected, values.toList())
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assertEquals(expected, values.toList(), "running match sequence second time")
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assertEquals(expected.drop(1), pattern.findAll(input, startIndex = 3).map { it.value }.toList())
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assertEquals(listOf(0..3, 8..10, 12..14), matches.map { it.range }.toList())
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}
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private fun compareRegex(expected: Regex, actual: Regex) = compare(expected, actual) {
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propertyEquals(Regex::pattern)
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propertyEquals(Regex::options)
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propertyEquals("flags") { toPattern().flags() }
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}
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private fun equivalentAfterDeserialization(regex: Regex) = compareRegex(regex, serializeAndDeserialize(regex))
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@Test fun serializeDeserializeRegex() {
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equivalentAfterDeserialization(Regex(""))
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equivalentAfterDeserialization(Regex("\\w+"))
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equivalentAfterDeserialization(Regex("\\w+", RegexOption.IGNORE_CASE))
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equivalentAfterDeserialization(Regex("\\w+", setOf(RegexOption.LITERAL, RegexOption.MULTILINE)))
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equivalentAfterDeserialization(Pattern.compile("\\w+", Pattern.UNICODE_CASE).toRegex())
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}
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@Test fun deserializeRegexFromHex() {
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val expected = Regex("\\w+", RegexOption.IGNORE_CASE)
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// println(serializeToHex(expected))
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val deserialized = deserializeFromHex<Regex>("ac ed 00 05 73 72 00 1c 6b 6f 74 6c 69 6e 2e 74 65 78 74 2e 52 65 67 65 78 24 53 65 72 69 61 6c 69 7a 65 64 00 00 00 00 00 00 00 00 02 00 02 49 00 05 66 6c 61 67 73 4c 00 07 70 61 74 74 65 72 6e 74 00 12 4c 6a 61 76 61 2f 6c 61 6e 67 2f 53 74 72 69 6e 67 3b 78 70 00 00 00 42 74 00 03 5c 77 2b")
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compareRegex(expected, deserialized)
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}
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}
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