import { assertEquals, assertThrows } from "../testing/asserts.ts";import { parse, ParseError, stringify, StringifyError } from "./csv.ts";
const CRLF = "\r\n";
Deno.test({ name: "parse", async fn(t) { await t.step({ name: "Simple", fn() { const input = "a,b,c\n"; assertEquals( parse(input), [["a", "b", "c"]], ); }, }); await t.step({ name: "CRLF", fn() { const input = "a,b\r\nc,d\r\n"; assertEquals( parse(input), [ ["a", "b"], ["c", "d"], ], ); }, });
await t.step({ name: "BareCR", fn() { const input = "a,b\rc,d\r\n"; assertEquals( parse(input), [["a", "b\rc", "d"]], ); }, });
await t.step({ name: "RFC4180test", fn() { const input = '#field1,field2,field3\n"aaa","bbb","ccc"\n"a,a","bbb","ccc"\nzzz,yyy,xxx'; assertEquals( parse(input), [ ["#field1", "field2", "field3"], ["aaa", "bbb", "ccc"], ["a,a", `bbb`, "ccc"], ["zzz", "yyy", "xxx"], ], ); }, }); await t.step({ name: "NoEOLTest", fn() { const input = "a,b,c"; assertEquals( parse(input), [["a", "b", "c"]], ); }, });
await t.step({ name: "Semicolon", fn() { const input = "a;b;c\n"; assertEquals( parse(input, { separator: ";" }), [["a", "b", "c"]], ); }, });
await t.step({ name: "MultiLine", fn() { const input = '"two\nline","one line","three\nline\nfield"'; assertEquals( parse(input), [["two\nline", "one line", "three\nline\nfield"]], ); }, });
await t.step({ name: "BlankLine", fn() { const input = "a,b,c\n\nd,e,f\n\n"; assertEquals( parse(input), [ ["a", "b", "c"], ["d", "e", "f"], ], ); }, });
await t.step({ name: "BlankLineFieldCount", fn() { const input = "a,b,c\n\nd,e,f\n\n"; assertEquals( parse(input, { fieldsPerRecord: 0 }), [ ["a", "b", "c"], ["d", "e", "f"], ], ); }, });
await t.step({ name: "TrimSpace", fn() { const input = " a, b, c\n"; assertEquals( parse(input, { trimLeadingSpace: true }), [["a", "b", "c"]], ); }, });
await t.step({ name: "LeadingSpace", fn() { const input = " a, b, c\n"; const output = [[" a", " b", " c"]]; assertEquals(parse(input), output); }, }); await t.step({ name: "Comment", fn() { const input = "#1,2,3\na,b,c\n#comment"; const output = [["a", "b", "c"]]; assertEquals(parse(input, { comment: "#" }), output); }, }); await t.step({ name: "NoComment", fn() { const input = "#1,2,3\na,b,c"; const output = [ ["#1", "2", "3"], ["a", "b", "c"], ]; assertEquals(parse(input), output); }, }); await t.step({ name: "LazyQuotes", fn() { const input = `a "word","1"2",a","b`; const output = [[`a "word"`, `1"2`, `a"`, `b`]]; assertEquals(parse(input, { lazyQuotes: true }), output); }, }); await t.step({ name: "BareQuotes", fn() { const input = `a "word","1"2",a"`; const output = [[`a "word"`, `1"2`, `a"`]]; assertEquals(parse(input, { lazyQuotes: true }), output); }, }); await t.step({ name: "BareDoubleQuotes", fn() { const input = `a""b,c`; const output = [[`a""b`, `c`]]; assertEquals(parse(input, { lazyQuotes: true }), output); }, }); await t.step({ name: "BadDoubleQuotes", fn() { const input = `a""b,c`; assertThrows( () => parse(input), ParseError, 'parse error on line 1, column 1: bare " in non-quoted-field', ); }, }); await t.step({ name: "TrimQuote", fn() { const input = ` "a"," b",c`; const output = [["a", " b", "c"]]; assertEquals(parse(input, { trimLeadingSpace: true }), output); }, }); await t.step({ name: "BadBareQuote", fn() { const input = `a "word","b"`; assertThrows( () => parse(input), ParseError, 'parse error on line 1, column 2: bare " in non-quoted-field', ); }, }); await t.step({ name: "BadTrailingQuote", fn() { const input = `"a word",b"`; assertThrows( () => parse(input), ParseError, 'parse error on line 1, column 10: bare " in non-quoted-field', ); }, }); await t.step({ name: "ExtraneousQuote", fn() { const input = `"a "word","b"`; assertThrows( () => parse(input), ParseError, `parse error on line 1, column 3: extraneous or missing " in quoted-field`, ); }, }); await t.step({ name: "BadFieldCount", fn() { const input = "a,b,c\nd,e"; assertThrows( () => parse(input, { fieldsPerRecord: 0 }), ParseError, "record on line 2: wrong number of fields", ); }, }); await t.step({ name: "BadFieldCount1", fn() { const input = `a,b,c`; assertThrows( () => parse(input, { fieldsPerRecord: 2 }), ParseError, "record on line 1: wrong number of fields", ); }, }); await t.step({ name: "FieldCount", fn() { const input = "a,b,c\nd,e"; const output = [ ["a", "b", "c"], ["d", "e"], ]; assertEquals(parse(input), output); }, }); await t.step({ name: "TrailingCommaEOF", fn() { const input = "a,b,c,"; const output = [["a", "b", "c", ""]]; assertEquals(parse(input), output); }, }); await t.step({ name: "TrailingCommaEOL", fn() { const input = "a,b,c,\n"; const output = [["a", "b", "c", ""]]; assertEquals(parse(input), output); }, }); await t.step({ name: "TrailingCommaSpaceEOF", fn() { const input = "a,b,c, "; const output = [["a", "b", "c", ""]]; assertEquals(parse(input, { trimLeadingSpace: true }), output); }, }); await t.step({ name: "TrailingCommaSpaceEOL", fn() { const input = "a,b,c, \n"; const output = [["a", "b", "c", ""]]; assertEquals(parse(input, { trimLeadingSpace: true }), output); }, }); await t.step({ name: "TrailingCommaLine3", fn() { const input = "a,b,c\nd,e,f\ng,hi,"; const output = [ ["a", "b", "c"], ["d", "e", "f"], ["g", "hi", ""], ]; assertEquals(parse(input, { trimLeadingSpace: true }), output); }, }); await t.step({ name: "NotTrailingComma3", fn() { const input = "a,b,c, \n"; const output = [["a", "b", "c", " "]]; assertEquals(parse(input), output); }, }); await t.step({ name: "CommaFieldTest", fn() { const input = `x,y,z,w\nx,y,z,\nx,y,,\nx,,,\n,,,\n"x","y","z","w"\n"x","y","z",""\n"x","y","",""\n"x","","",""\n"","","",""\n`; const output = [ ["x", "y", "z", "w"], ["x", "y", "z", ""], ["x", "y", "", ""], ["x", "", "", ""], ["", "", "", ""], ["x", "y", "z", "w"], ["x", "y", "z", ""], ["x", "y", "", ""], ["x", "", "", ""], ["", "", "", ""], ]; assertEquals(parse(input), output); }, }); await t.step({ name: "TrailingCommaIneffective1", fn() { const input = "a,b,\nc,d,e"; const output = [ ["a", "b", ""], ["c", "d", "e"], ]; assertEquals(parse(input, { trimLeadingSpace: true }), output); }, }); await t.step({ name: "ReadAllReuseRecord", fn() { const input = "a,b\nc,d"; const output = [ ["a", "b"], ["c", "d"], ]; assertEquals(parse(input), output); }, }); await t.step({ name: "StartLine1", fn() { const input = 'a,"b\nc"d,e'; assertThrows( () => parse(input, { fieldsPerRecord: 2 }), ParseError, 'record on line 1; parse error on line 2, column 1: extraneous or missing " in quoted-field', ); }, }); await t.step({ name: "StartLine2", fn() { const input = 'a,b\n"d\n\n,e'; assertThrows( () => parse(input, { fieldsPerRecord: 2 }), ParseError, 'record on line 2; parse error on line 5, column 0: extraneous or missing " in quoted-field', ); }, }); await t.step({ name: "CRLFInQuotedField", fn() { const input = 'A,"Hello\r\nHi",B\r\n'; const output = [["A", "Hello\nHi", "B"]]; assertEquals(parse(input), output); }, }); await t.step({ name: "BinaryBlobField", fn() { const input = "x09\x41\xb4\x1c,aktau"; const output = [["x09A\xb4\x1c", "aktau"]]; assertEquals(parse(input), output); }, }); await t.step({ name: "TrailingCR", fn() { const input = "field1,field2\r"; const output = [["field1", "field2"]]; assertEquals(parse(input), output); }, }); await t.step({ name: "QuotedTrailingCR", fn() { const input = '"field"\r'; const output = [["field"]]; assertEquals(parse(input), output); }, }); await t.step({ name: "QuotedTrailingCRCR", fn() { const input = '"field"\r\r'; assertThrows( () => parse(input, { fieldsPerRecord: 2 }), ParseError, 'parse error on line 1, column 6: extraneous or missing " in quoted-field', ); }, }); await t.step({ name: "FieldCR", fn() { const input = "field\rfield\r"; const output = [["field\rfield"]]; assertEquals(parse(input), output); }, }); await t.step({ name: "FieldCRCR", fn() { const input = "field\r\rfield\r\r"; const output = [["field\r\rfield\r"]]; assertEquals(parse(input), output); }, }); await t.step({ name: "FieldCRCRLF", fn() { const input = "field\r\r\nfield\r\r\n"; const output = [["field\r"], ["field\r"]]; assertEquals(parse(input), output); }, }); await t.step({ name: "FieldCRCRLFCR", fn() { const input = "field\r\r\n\rfield\r\r\n\r"; const output = [["field\r"], ["\rfield\r"]]; assertEquals(parse(input), output); }, }); await t.step({ name: "FieldCRCRLFCRCR", fn() { const input = "field\r\r\n\r\rfield\r\r\n\r\r"; const output = [["field\r"], ["\r\rfield\r"], ["\r"]]; assertEquals(parse(input), output); }, }); await t.step({ name: "MultiFieldCRCRLFCRCR", fn() { const input = "field1,field2\r\r\n\r\rfield1,field2\r\r\n\r\r,"; const output = [ ["field1", "field2\r"], ["\r\rfield1", "field2\r"], ["\r\r", ""], ]; assertEquals(parse(input), output); }, }); await t.step({ name: "NonASCIICommaAndComment", fn() { const input = "a£b,c£ \td,e\n€ comment\n"; const output = [["a", "b,c", "d,e"]]; assertEquals( parse(input, { trimLeadingSpace: true, separator: "£", comment: "€", }), output, ); }, }); await t.step({ name: "NonASCIICommaAndCommentWithQuotes", fn() { const input = 'a€" b,"€ c\nλ comment\n'; const output = [["a", " b,", " c"]]; assertEquals( parse(input, { separator: "€", comment: "λ" }), output, ); }, }); await t.step( { name: "NonASCIICommaConfusion", fn() { const input = '"abθcd"λefθgh'; const output = [["abθcd", "efθgh"]]; assertEquals( parse(input, { separator: "λ", comment: "€" }), output, ); }, }, ); await t.step({ name: "NonASCIICommentConfusion", fn() { const input = "λ\nλ\nθ\nλ\n"; const output = [["λ"], ["λ"], ["λ"]]; assertEquals(parse(input, { comment: "θ" }), output); }, }); await t.step({ name: "QuotedFieldMultipleLF", fn() { const input = '"\n\n\n\n"'; const output = [["\n\n\n\n"]]; assertEquals(parse(input), output); }, }); await t.step({ name: "MultipleCRLF", fn() { const input = "\r\n\r\n\r\n\r\n"; const output: string[][] = []; assertEquals(parse(input), output); }, } ); await t.step({ name: "QuoteWithTrailingCRLF", fn() { const input = '"foo"bar"\r\n'; assertThrows( () => parse(input), ParseError, `parse error on line 1, column 4: extraneous or missing " in quoted-field`, ); }, }); await t.step({ name: "LazyQuoteWithTrailingCRLF", fn() { const input = '"foo"bar"\r\n'; const output = [[`foo"bar`]]; assertEquals(parse(input, { lazyQuotes: true }), output); }, }); await t.step({ name: "DoubleQuoteWithTrailingCRLF", fn() { const input = '"foo""bar"\r\n'; const output = [[`foo"bar`]]; assertEquals(parse(input), output); }, }); await t.step({ name: "EvenQuotes", fn() { const input = `""""""""`; const output = [[`"""`]]; assertEquals(parse(input), output); }, }); await t.step({ name: "OddQuotes", fn() { const input = `"""""""`; assertThrows( () => parse(input), ParseError, `parse error on line 1, column 7: extraneous or missing " in quoted-field`, ); }, }); await t.step({ name: "LazyOddQuotes", fn() { const input = `"""""""`; const output = [[`"""`]]; assertEquals(parse(input, { lazyQuotes: true }), output); }, }); await t.step({ name: "BadComma1", fn() { const input = ""; assertThrows( () => parse(input, { separator: "\n" }), Error, "Invalid Delimiter", ); }, }); await t.step({ name: "BadComma2", fn() { const input = ""; assertThrows( () => parse(input, { separator: "\r" }), Error, "Invalid Delimiter", ); }, }); await t.step({ name: "BadComma3", fn() { const input = ""; assertThrows( () => parse(input, { separator: '"' }), Error, "Invalid Delimiter", ); }, }); await t.step({ name: "BadComment1", fn() { const input = ""; assertThrows( () => parse(input, { comment: "\n" }), Error, "Invalid Delimiter", ); }, }); await t.step({ name: "BadComment2", fn() { const input = ""; assertThrows( () => parse(input, { comment: "\r" }), Error, "Invalid Delimiter", ); }, }); await t.step({ name: "BadCommaComment", fn() { const input = ""; assertThrows( () => parse(input, { separator: "X", comment: "X" }), Error, "Invalid Delimiter", ); }, });
await t.step({ name: "simple", fn() { const input = "a,b,c"; const output = [["a", "b", "c"]]; assertEquals(parse(input, { skipFirstRow: false }), output); }, }); await t.step({ name: "simple Bufreader", fn() { const input = "a,b,c"; const output = [["a", "b", "c"]]; assertEquals(parse(input, { skipFirstRow: false }), output); }, }); await t.step({ name: "multiline", fn() { const input = "a,b,c\ne,f,g\n"; const output = [ ["a", "b", "c"], ["e", "f", "g"], ]; assertEquals(parse(input, { skipFirstRow: false }), output); }, }); await t.step({ name: "header mapping boolean", fn() { const input = "a,b,c\ne,f,g\n"; const output = [{ a: "e", b: "f", c: "g" }]; assertEquals(parse(input, { skipFirstRow: true }), output); }, }); await t.step({ name: "header mapping array", fn() { const input = "a,b,c\ne,f,g\n"; const output = [ { this: "a", is: "b", sparta: "c" }, { this: "e", is: "f", sparta: "g" }, ]; assertEquals( parse(input, { columns: ["this", "is", "sparta"] }), output, ); }, });
await t.step({ name: "provides both opts.skipFirstRow and opts.columns", fn() { const input = "a,b,1\nc,d,2\ne,f,3"; const output = [ { foo: "c", bar: "d", baz: "2" }, { foo: "e", bar: "f", baz: "3" }, ]; assertEquals( parse(input, { skipFirstRow: true, columns: ["foo", "bar", "baz"], }), output, ); }, }); await t.step({ name: "mismatching number of headers and fields", fn() { const input = "a,b,c\nd,e"; assertThrows( () => parse(input, { skipFirstRow: true, columns: ["foo", "bar", "baz"], }), Error, "Error number of fields line: 1\nNumber of fields found: 3\nExpected number of fields: 2", ); }, }); },});
Deno.test({ name: "stringify", async fn(t) { await t.step({ name: "Access array index using string", fn() { const columns = ["a"]; const data = [["foo"], ["bar"]]; const errorMessage = 'Property accessor is not of type "number"'; assertThrows( () => stringify(data, { columns }), StringifyError, errorMessage, ); }, }); await t.step( { name: "Double quote in separator",
fn() { const columns = [0]; const data = [["foo"], ["bar"]]; const errorMessage = [ "Separator cannot include the following strings:", ' - U+0022: Quotation mark (")', " - U+000D U+000A: Carriage Return + Line Feed (\\r\\n)", ].join("\n"); const options = { separator: '"', columns }; assertThrows( () => stringify(data, options), StringifyError, errorMessage, ); }, }, ); await t.step( { name: "CRLF in separator", fn() { const columns = [0]; const data = [["foo"], ["bar"]]; const errorMessage = [ "Separator cannot include the following strings:", ' - U+0022: Quotation mark (")', " - U+000D U+000A: Carriage Return + Line Feed (\\r\\n)", ].join("\n"); const options = { separator: "\r\n", columns }; assertThrows( () => stringify(data, options), StringifyError, errorMessage, ); }, }, );
await t.step( { name: "Invalid data, no columns", fn() { const data = [{ a: 1 }, { a: 2 }]; assertThrows( () => stringify(data), StringifyError, "No property accessor function was provided for object", ); }, }, ); await t.step( { name: "Invalid data, no columns", fn() { const data = [{ a: 1 }, { a: 2 }]; assertThrows( () => stringify(data), StringifyError, "No property accessor function was provided for object", ); }, }, ); await t.step( { name: "No data, no columns",
fn() { const columns: string[] = []; const data: string[][] = []; const output = CRLF; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "No data, no columns, no headers", fn() { const columns: string[] = []; const data: string[][] = []; const output = ``; const options = { headers: false, columns }; assertEquals(stringify(data, options), output); }, }, ); await t.step( { name: "No data, columns", fn() { const columns = ["a"]; const data: string[][] = []; const output = `a${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "No data, columns, no headers",
fn() { const columns = ["a"]; const data: string[][] = []; const output = ``; const options = { headers: false, columns }; assertEquals(stringify(data, options), output); }, }, ); await t.step( { name: "Separator: CR", fn() { const columns = [0, 1]; const data = [["foo", "bar"], ["baz", "qux"]]; const output = `0\r1${CRLF}foo\rbar${CRLF}baz\rqux${CRLF}`; const options = { separator: "\r", columns }; assertEquals(stringify(data, options), output); }, }, ); await t.step( { name: "Separator: LF",
fn() { const columns = [0, 1]; const data = [["foo", "bar"], ["baz", "qux"]]; const output = `0\n1${CRLF}foo\nbar${CRLF}baz\nqux${CRLF}`; const options = { separator: "\n", columns }; assertEquals(stringify(data, options), output); }, }, ); await t.step( { name: "Column: number accessor", fn() { const columns = [1]; const data = [{ 1: 1 }, { 1: 2 }]; const output = `1${CRLF}1${CRLF}2${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Explicit header value, no headers",
fn() { const columns = [{ header: "Value", prop: "value" }]; const data = [{ value: "foo" }, { value: "bar" }]; const output = `foo${CRLF}bar${CRLF}`; const options = { headers: false, columns }; assertEquals(stringify(data, options), output); }, }, ); await t.step( { name: "Column: number accessor,const data = array", fn() { const columns = [1]; const data = [["key", "foo"], ["key", "bar"]]; const output = `1${CRLF}foo${CRLF}bar${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Column: array number accessor",
fn() { const columns = [[1]]; const data = [{ 1: 1 }, { 1: 2 }]; const output = `1${CRLF}1${CRLF}2${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Column: array number accessor,const data = array", fn() { const columns = [[1]]; const data = [["key", "foo"], ["key", "bar"]]; const output = `1${CRLF}foo${CRLF}bar${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Column: array number accessor,const data = array",
fn() { const columns = [[1, 1]]; const data = [["key", ["key", "foo"]], ["key", ["key", "bar"]]]; const output = `1${CRLF}foo${CRLF}bar${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Column: string accessor", fn() { const columns = ["value"]; const data = [{ value: "foo" }, { value: "bar" }]; const output = `value${CRLF}foo${CRLF}bar${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Column: array string accessor", fn() { const columns = [["value"]]; const data = [{ value: "foo" }, { value: "bar" }]; const output = `value${CRLF}foo${CRLF}bar${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Column: array string accessor", fn() { const columns = [["msg", "value"]]; const data = [{ msg: { value: "foo" } }, { msg: { value: "bar" } }]; const output = `value${CRLF}foo${CRLF}bar${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Explicit header", fn() { const columns = [ { header: "Value", prop: ["msg", "value"], }, ]; const data = [{ msg: { value: "foo" } }, { msg: { value: "bar" } }]; const output = `Value${CRLF}foo${CRLF}bar${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, );
await t.step( { name: "Targeted value: object", fn() { const columns = [0]; const data = [[{ value: "foo" }], [{ value: "bar" }]]; const output = `0${CRLF}"{""value"":""foo""}"${CRLF}"{""value"":""bar""}"${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Targeted value: arary of objects", fn() { const columns = [0]; const data = [ [[{ value: "foo" }, { value: "bar" }]], [[{ value: "baz" }, { value: "qux" }]], ]; const output = `0${CRLF}"[{""value"":""foo""},{""value"":""bar""}]"${CRLF}"[{""value"":""baz""},{""value"":""qux""}]"${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Targeted value: array", fn() { const columns = [0]; const data = [[["foo", "bar"]], [["baz", "qux"]]]; const output = `0${CRLF}"[""foo"",""bar""]"${CRLF}"[""baz"",""qux""]"${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Targeted value: array, separator: tab",
fn() { const columns = [0]; const data = [[["foo", "bar"]], [["baz", "qux"]]]; const output = `0${CRLF}"[""foo"",""bar""]"${CRLF}"[""baz"",""qux""]"${CRLF}`; const options = { separator: "\t", columns }; assertEquals(stringify(data, options), output); }, }, ); await t.step( { name: "Targeted value: undefined", fn() { const columns = [0]; const data = [[], []]; const output = `0${CRLF}${CRLF}${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Targeted value: null", fn() { const columns = [0]; const data = [[null], [null]]; const output = `0${CRLF}${CRLF}${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Targeted value: hex number", fn() { const columns = [0]; const data = [[0xa], [0xb]]; const output = `0${CRLF}10${CRLF}11${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Targeted value: BigInt", fn() { const columns = [0]; const data = [[BigInt("1")], [BigInt("2")]]; const output = `0${CRLF}1${CRLF}2${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Targeted value: boolean", fn() { const columns = [0]; const data = [[true], [false]]; const output = `0${CRLF}true${CRLF}false${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Targeted value: string", fn() { const columns = [0]; const data = [["foo"], ["bar"]]; const output = `0${CRLF}foo${CRLF}bar${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Targeted value: symbol", fn() { const columns = [0]; const data = [[Symbol("foo")], [Symbol("bar")]]; const output = `0${CRLF}Symbol(foo)${CRLF}Symbol(bar)${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Targeted value: function", fn() { const columns = [0]; const data = [[(n: number) => n]]; const output = `0${CRLF}(n)=>n${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Value with double quote", fn() { const columns = [0]; const data = [['foo"']]; const output = `0${CRLF}"foo"""${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Value with CRLF", fn() { const columns = [0]; const data = [["foo\r\n"]]; const output = `0${CRLF}"foo\r\n"${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Value with CR", fn() { const columns = [0]; const data = [["foo\r"]]; const output = `0${CRLF}foo\r${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Value with LF", fn() { const columns = [0]; const data = [["foo\n"]]; const output = `0${CRLF}"foo\n"${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Value with comma", fn() { const columns = [0]; const data = [["foo,"]]; const output = `0${CRLF}"foo,"${CRLF}`; assertEquals(stringify(data, { columns }), output); }, }, ); await t.step( { name: "Value with comma, tab separator", fn() { const columns = [0]; const data = [["foo,"]]; const output = `0${CRLF}foo,${CRLF}`;
const options = { separator: "\t", columns }; assertEquals(stringify(data, options), output); }, }, ); await t.step({ name: "Valid data, no columns", async fn() { const data = [[1, 2, 3], [4, 5, 6]]; const output = `${CRLF}1,2,3${CRLF}4,5,6${CRLF}`;
assertEquals(await stringify(data), output); }, }); },});