Igor Yakovlev
71 lines
2.2 KiB
Kotlin
71 lines
2.2 KiB
Kotlin
/*
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* Copyright 2010-2021 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
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* that can be found in the LICENSE file.
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*/
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package test.text.harmony_regex
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import kotlin.text.*
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import kotlin.test.*
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class FindAllTest {
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internal fun Regex.allGroups(text: String) =
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findAll(text).map {
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it.groups.mapIndexed { index, it ->
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"$index => ${it?.value}"
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}.joinToString("; ")
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}.toList()
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/**
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* Tests regular expressions with lookbehind asserts.
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*/
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@Test fun testLookBehind() {
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var regex: Regex
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var result: List<String>
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regex = "(?<=^/nl(?:/nl)?/\\d{1,600}[\\d+]{0,600}/[\\d+]{0,600})(\\d+)".toRegex()
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result = regex.allGroups("/nl/nl/1+2/3+4/")
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assertEquals(2, result.count())
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assertEquals("0 => 3; 1 => 3", result[0])
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assertEquals("0 => 4; 1 => 4", result[1])
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regex = "abe(?<=[ab][!be](.|\\b))(=|t)".toRegex()
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result = regex.allGroups("abet abe=")
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assertEquals(2, result.count())
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assertEquals("0 => abet; 1 => e; 2 => t", result[0])
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assertEquals("0 => abe=; 1 => ; 2 => =", result[1])
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}
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/**
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* Tests regular expressions with lookahead asserts.
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*/
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@Test fun testLookAheadBehind() {
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var regex: Regex
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var result: List<String>
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regex = "a(?=b?)(\\w|)c".toRegex()
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result = regex.allGroups("abcfgac")
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assertEquals(2, result.count())
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assertEquals("0 => abc; 1 => b", result[0])
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assertEquals("0 => ac; 1 => ", result[1])
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regex = "[a!](?=d|&)\\b[&d]".toRegex()
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result = regex.allGroups("ada& !d!&")
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assertEquals(2, result.count())
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assertEquals("0 => a&", result[0])
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assertEquals("0 => !d", result[1])
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regex = "(?=ab)(a|^)b".toRegex()
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result = regex.allGroups("abcab")
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assertEquals(2, result.count())
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assertEquals("0 => ab; 1 => a", result[0])
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assertEquals("0 => ab; 1 => a", result[1])
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regex = "(?=[a-k][a-z])(?=[a-d][c-x])[d-y][x-z]".toRegex()
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result = regex.allGroups("abdydx")
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assertEquals(1, result.count())
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assertEquals("0 => dx", result[0])
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}
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}
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