How to use peek method of io.kotest.engine.tags.Parserprivate class

Best Kotest code snippet using io.kotest.engine.tags.Parserprivate.peek

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1 fun testPeek() {2 val parser = Parser("a b c")3 parser.peek() shouldBe 'a'4 parser.peek() shouldBe 'a'5 parser.consume() shouldBe 'a'6 parser.peek() shouldBe 'b'7 }8}9private class ParserTest {10 fun testConsume() {11 val parser = Parser("a b c")12 parser.consume() shouldBe 'a'13 parser.consume() shouldBe ' '14 parser.consume() shouldBe 'b'15 parser.consume() shouldBe ' '16 parser.consume() shouldBe 'c'17 shouldThrow<NoSuchElementException> { parser.consume() }18 }19}20private class ParserTest {21 fun testParse() {22 Parser("a b c").parse() shouldBe listOf("a", "b", "c")23 Parser("a b c").parse() shouldBe listOf("a", "b", "c")24 Parser("a b c").parse() shouldBe listOf("a", "b", "c")25 }26}27private class ParserTest {28 fun testParse() {29 Parser("a b c").parse() shouldBe listOf("a", "b", "c")30 Parser("a b c").parse() shouldBe listOf("a", "b", "c")31 Parser("a b c").parse() shouldBe listOf("a", "b", "c")32 }33}34private class ParserTest {35 fun testParse() {36 Parser("a b c").parse() shouldBe listOf("a", "b", "c")37 Parser("a b c").parse() shouldBe listOf("a", "b", "c")38 Parser("a b c").parse() shouldBe listOf("a", "b", "c")39 }40}41private class ParserTest {42 fun testParse() {43 Parser("a b c").parse() shouldBe listOf("a", "b", "c")44 Parser("a b c").parse() shouldBe listOf("a", "b",

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1+ override fun peek(): Token = peeked2+ ?: parser.peek().also { peeked = it }3+ override fun next(): Token = peeked?.also { peeked = null }4+ ?: parser.next()5+}6+private fun Parser.peek(): Token = when (this) {7+ is PeekParser -> peek()8+ else -> PeekParser(this).next()9+}10+private fun Parser.next(): Token = when (this) {11+ is PeekParser -> next()12+ else -> next()13+}14+private fun Parser.expect(expected: Token): Token {15+ val token = next()16+ if (token != expected) {17+ throw IllegalArgumentException("Expected $expected but got $token")18+ }19+}20+private fun Parser.expect(expected: TokenType): Token {21+ val token = next()22+ if (token.type != expected) {23+ throw IllegalArgumentException("Expected $expected but got ${token.type}")24+ }25+}26+private fun Parser.expectIdentifier(): Token {27+ val token = next()28+ if (token.type != TokenType.Identifier) {29+ throw IllegalArgumentException("Expected identifier but got ${token.type}")30+ }31+}32+private fun Parser.expectValue(): Token {33+ val token = next()34+ if (token.type != TokenType.Value) {35+ throw IllegalArgumentException("Expected value but got ${token.type}")36+ }37+}38+private fun Parser.expectAnyOf(vararg expected: TokenType): Token {39+ val token = next()40+ if (token.type !in expected) {41+ throw IllegalArgumentException("Expected one of $expected but got ${token.type}")42+ }43+}44+private fun Parser.expectEndOfInput() {45+ val token = next()46+ if (token.type != TokenType.EndOfInput) {47+ throw IllegalArgumentException("Expected end of input but got ${token.type}")48+ }49+}50+private fun Parser.parseIdentifier(): String {51+ val token = expectIdentifier()52+}53+private fun Parser.parseValue(): String {

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1+ fun `parse a single tag`() {2+ val parser = Parser("foo")3+ parser.parseTag() shouldBe Tag("foo")4+ }5+ fun `parse a single tag with spaces`() {6+ val parser = Parser("foo bar")7+ parser.parseTag() shouldBe Tag("foo bar")8+ }9+ fun `parse a single tag with a space before the colon`() {10+ val parser = Parser("foo :bar")11+ parser.parseTag() shouldBe Tag("foo :bar")12+ }13+ fun `parse a single tag with a space after the colon`() {14+ val parser = Parser("foo: bar")15+ parser.parseTag() shouldBe Tag("foo: bar")16+ }17+ fun `parse a single tag with a colon`() {18+ val parser = Parser("foo:bar")19+ parser.parseTag() shouldBe Tag("foo:bar")20+ }21+ fun `parse a single tag with a colon and spaces`() {22+ val parser = Parser("foo : bar")23+ parser.parseTag() shouldBe Tag("foo : bar")24+ }25+ fun `parse a single tag with a colon and spaces and a value`() {26+ val parser = Parser("foo : bar = baz")27+ parser.parseTag() shouldBe Tag("foo : bar", "baz")28+ }29+ fun `parse a single tag with a colon and spaces and a value with spaces`() {30+ val parser = Parser("foo : bar = baz qux")31+ parser.parseTag() shouldBe Tag("foo : bar", "baz qux")32+ }33+ fun `parse a tag with a value`() {34+ val parser = Parser("foo=bar")35+ parser.parseTag() shouldBe Tag("foo", "bar")36+ }37+ fun `parse a tag with a value and spaces`() {38+ val parser = Parser("foo = bar")39+ parser.parseTag() shouldBe Tag("foo", "bar")40+ }

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1class ParserTest {2 fun `peek should return next character`() {3 val parser = Parser("a")4 parser.peek() shouldBe 'a'5 }6 fun `peek should not advance the position`() {7 val parser = Parser("a")8 parser.peek()9 parser.peek() shouldBe 'a'10 }11 fun `peek should return null if there are no characters left`() {12 val parser = Parser("")13 parser.peek() shouldBe null14 }15 fun `peek should return null if there are no characters left after consuming`() {16 val parser = Parser("a")17 parser.next()18 parser.peek() shouldBe null19 }20 fun `next should return next character`() {21 val parser = Parser("a")22 parser.next() shouldBe 'a'23 }24 fun `next should advance the position`() {25 val parser = Parser("a")26 parser.next()27 parser.next() shouldBe null28 }29 fun `next should return null if there are no characters left`() {30 val parser = Parser("")31 parser.next() shouldBe null32 }33 fun `next should return null if there are no characters left after consuming`() {34 val parser = Parser("a")35 parser.next()36 parser.next() shouldBe null37 }38 fun `should parse a single tag`() {39 Parser("a").parse() shouldBe listOf("a")40 }41 fun `should parse a single tag with spaces`() {42 Parser(" a ").parse() shouldBe listOf("a")43 }44 fun `should parse a single tag with underscores`() {45 Parser("a_b").parse() shouldBe listOf("a_b")46 }47 fun `should parse a single tag with dashes`() {48 Parser("a-b").parse() shouldBe listOf("a-b")49 }50 fun `should parse a single tag with digits`() {51 Parser("a1").parse() shouldBe listOf("a1")52 }53 fun `should parse a single tag with unicode`() {54 Parser("a\u1234").parse() shouldBe listOf("a\u1234")55 }

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1+private class ParserTest {2+ fun `parse simple tag`() {3+ val parser = Parser("foo")4+ parser.peek() shouldBe 'f'5+ parser.peek() shouldBe 'f'6+ parser.consume() shouldBe 'f'7+ parser.peek() shouldBe 'o'8+ parser.consume() shouldBe 'o'9+ parser.peek() shouldBe 'o'10+ parser.consume() shouldBe 'o'11+ parser.peek() shouldBe null12+ shouldThrow<NoSuchElementException> { parser.consume() }13+ }14+ fun `parse tag with single backslash`() {15+ val parser = Parser("foo\\")16+ parser.peek() shouldBe 'f'17+ parser.consume() shouldBe 'f'18+ parser.peek() shouldBe 'o'19+ parser.consume() shouldBe 'o'20+ parser.peek() shouldBe 'o'21+ parser.consume() shouldBe 'o'22+ parser.peek() shouldBe '\\'23+ parser.consume() shouldBe '\\'24+ parser.peek() shouldBe null25+ shouldThrow<NoSuchElementException> { parser.consume() }26+ }27+ fun `parse tag with double backslash`() {28+ val parser = Parser("foo\\\\")29+ parser.peek() shouldBe 'f'30+ parser.consume() shouldBe 'f'31+ parser.peek() shouldBe 'o'32+ parser.consume() shouldBe 'o'33+ parser.peek() shouldBe 'o'34+ parser.consume() shouldBe 'o'35+ parser.peek() shouldBe '\\'36+ parser.consume() shouldBe '\\'37+ parser.peek() shouldBe '\\'38+ parser.consume() shouldBe '\\'39+ parser.peek() shouldBe null40+ shouldThrow<NoSuchElementException> { parser.consume() }41+ }42+ fun `parse tag with single comma`() {43+ val parser = Parser("foo,bar")44+ parser.peek() shouldBe 'f'45+ parser.consume() shouldBe 'f'46+ parser.peek() shouldBe 'o'47+ parser.consume() shouldBe 'o'48+ parser.peek() shouldBe 'o'49+ parser.consume() shouldBe 'o'50+ parser.peek() shouldBe ','51+ parser.consume() shouldBe ','52+ parser.peek() shouldBe 'b'53+ parser.consume() shouldBe 'b'

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1private class Parser(private val tag: String) {2 private val iterator = tag.iterator()3 private var peeked = iterator.next()4 fun peek() = peeked5 fun consume() {6 peeked = iterator.next()7 }8}9private fun Parser.expect(ch: Char) {10 if (peek() != ch) throw IllegalArgumentException("Expected $ch, but got $peek()")11 consume()12}13private fun Parser.expectEnd() {14 if (peek() != Parser.END) throw IllegalArgumentException("Expected end of string, but got $peek()")15}16private fun Parser.expectNotEnd() {17 if (peek() == Parser.END) throw IllegalArgumentException("Expected more characters, but got end of string")18}19private fun Parser.expectNotSpace() {20 if (peek().isWhitespace()) throw IllegalArgumentException("Expected non-whitespace, but got $peek()")21}22private fun Parser.expectSpace() {23 if (!peek().isWhitespace()) throw IllegalArgumentException("Expected whitespace, but got $peek()")24}25private fun Parser.expectNotEndOrSpace() {26 if (peek() == Parser.END || peek().isWhitespace()) {27 throw IllegalArgumentException("Expected non-whitespace, but got $peek()")28 }29}30private fun Parser.expectNotEndOrComma() {31 if (peek() == Parser.END || peek() == ',') {32 throw IllegalArgumentException("Expected non-comma, but got $peek()")33 }34}35private fun Parser.expectNotEndOrSpaceOrComma() {36 if (peek() == Parser.END || peek().isWhitespace() || peek() == ',') {37 throw IllegalArgumentException("Expected non-comma, non-whitespace, but got $peek()")38 }39}40private fun Parser.expectNotEndOrSpaceOrBracket() {41 if (peek() == Parser.END || peek().isWhitespace() || peek() == '(' || peek() == ')') {42 throw IllegalArgumentException("Expected non-bracket, non-whitespace, but got $peek()")43 }44}45private fun Parser.consumeWhitespace() {46 while (peek().isWhitespace()) consume()47}48private fun Parser.consumeUntil(ch: Char) {49 while (peek() != ch) consume()50}51private fun Parser.consumeUntilEndOrSpace() {52 while (peek() != Parser.END && !peek().isWhitespace()) consume()53}54private fun Parser.consumeUntilEndOrComma() {55 while (peek() != Parser.END && peek() != ',

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1class ParserTest {2 private val parser = Parser()3 private fun test(input: String, expected: List<String>) {4 parser.parse(input).toList() shouldBe expected5 }6 fun empty() {7 test("", emptyList())8 }9 fun single() {10 test("a", listOf("a"))11 }12 fun singleWithSpaces() {13 test(" a ", listOf("a"))14 }15 fun singleWithSpacesAndComma() {16 test(" a, ", listOf("a"))17 }18 fun singleWithSpacesAndCommas() {19 test(" a,, ", listOf("a"))20 }21 fun singleWithSpacesAndCommasAndNewline() {22 test(" a,\n ", listOf("a"))23 }24 fun singleWithSpacesAndCommasAndNewlines() {25 test(" a,\n\n ", listOf("a"))26 }27 fun singleWithSpacesAndCommasAndNewlinesAndComment() {28 }29 fun singleWithSpacesAndCommasAndNewlinesAndCommentAndSpace() {30 }31 fun singleWithSpacesAndCommasAndNewlinesAndCommentAndSpaces() {32 }33 fun singleWithSpacesAndCommasAndNewlinesAndCommentAndSpacesAndComma() {34 }35 fun singleWithSpacesAndCommasAndNewlinesAndCommentAndSpacesAndCommas() {36 }37 fun singleWithSpacesAndCommasAndNewlinesAndCommentAndSpacesAndCommasAndNewline() {38 }

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1 fun `peek should return the next character`() {2 val parser = Parser("abc")3 parser.peek() shouldBe 'a'4 }5}6class Parser(private val input: String) {7 fun peek(): Char = input[pos]8}9class Parser(private val input: String) {10 fun peek(): Char = input[pos++]11}12dependencies {13 testImplementation("io.kotest:kotest-runner-junit5-jvm:$kotestVersion")14}

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Most used method in Parserprivate