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581 lines
13 KiB
TypeScript
581 lines
13 KiB
TypeScript
// Test ported from Golang
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// https://github.com/golang/go/blob/2cc15b1/src/encoding/csv/reader_test.go
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import { test, runIfMain } from "../testing/mod.ts";
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import { assertEquals, assert } from "../testing/asserts.ts";
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import { readAll, parse } from "./csv.ts";
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import { StringReader } from "../io/readers.ts";
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import { BufReader } from "../io/bufio.ts";
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const ErrInvalidDelim = "Invalid Delimiter";
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const ErrFieldCount = "wrong number of fields";
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const ErrBareQuote = 'bare " in non-quoted-field';
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// TODO(zekth): Activate remaining tests
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const testCases = [
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{
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Name: "Simple",
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Input: "a,b,c\n",
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Output: [["a", "b", "c"]]
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},
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{
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Name: "CRLF",
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Input: "a,b\r\nc,d\r\n",
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Output: [["a", "b"], ["c", "d"]]
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},
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{
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Name: "BareCR",
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Input: "a,b\rc,d\r\n",
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Output: [["a", "b\rc", "d"]]
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},
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// {
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// Name: "RFC4180test",
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// Input: `#field1,field2,field3
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// "aaa","bbb","ccc"
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// "a,a","bbb","ccc"
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// zzz,yyy,xxx`,
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// UseFieldsPerRecord: true,
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// FieldsPerRecord: 0,
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// Output: [
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// ["#field1", "field2", "field3"],
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// ["aaa", "bbb", "ccc"],
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// ["a,a", `bbb`, "ccc"],
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// ["zzz", "yyy", "xxx"]
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// ]
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// },
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{
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Name: "NoEOLTest",
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Input: "a,b,c",
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Output: [["a", "b", "c"]]
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},
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{
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Name: "Semicolon",
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Input: "a;b;c\n",
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Output: [["a", "b", "c"]],
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Comma: ";"
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},
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// {
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// Name: "MultiLine",
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// Input: `"two
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// line","one line","three
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// line
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// field"`,
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// Output: [["two\nline"], ["one line"], ["three\nline\nfield"]]
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// },
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{
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Name: "BlankLine",
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Input: "a,b,c\n\nd,e,f\n\n",
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Output: [["a", "b", "c"], ["d", "e", "f"]]
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},
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{
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Name: "BlankLineFieldCount",
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Input: "a,b,c\n\nd,e,f\n\n",
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Output: [["a", "b", "c"], ["d", "e", "f"]],
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UseFieldsPerRecord: true,
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FieldsPerRecord: 0
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},
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{
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Name: "TrimSpace",
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Input: " a, b, c\n",
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Output: [["a", "b", "c"]],
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TrimLeadingSpace: true
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},
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{
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Name: "LeadingSpace",
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Input: " a, b, c\n",
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Output: [[" a", " b", " c"]]
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},
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{
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Name: "Comment",
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Input: "#1,2,3\na,b,c\n#comment",
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Output: [["a", "b", "c"]],
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Comment: "#"
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},
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{
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Name: "NoComment",
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Input: "#1,2,3\na,b,c",
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Output: [["#1", "2", "3"], ["a", "b", "c"]]
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},
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{
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Name: "LazyQuotes",
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Input: `a "word","1"2",a","b`,
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Output: [[`a "word"`, `1"2`, `a"`, `b`]],
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LazyQuotes: true
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},
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{
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Name: "BareQuotes",
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Input: `a "word","1"2",a"`,
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Output: [[`a "word"`, `1"2`, `a"`]],
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LazyQuotes: true
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},
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{
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Name: "BareDoubleQuotes",
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Input: `a""b,c`,
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Output: [[`a""b`, `c`]],
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LazyQuotes: true
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},
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{
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Name: "BadDoubleQuotes",
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Input: `a""b,c`,
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Error: ErrBareQuote
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// Error: &ParseError{StartLine: 1, Line: 1, Column: 1, Err: ErrBareQuote},
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},
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{
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Name: "TrimQuote",
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Input: ` "a"," b",c`,
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Output: [["a", " b", "c"]],
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TrimLeadingSpace: true
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},
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{
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Name: "BadBareQuote",
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Input: `a "word","b"`,
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Error: ErrBareQuote
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// Error: true //&ParseError{StartLine: 1, Line: 1, Column: 2, Err: ErrBareQuote},
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},
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{
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Name: "BadTrailingQuote",
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Input: `"a word",b"`,
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Error: ErrBareQuote
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},
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{
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Name: "ExtraneousQuote",
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Input: `"a "word","b"`,
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Error: ErrBareQuote
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},
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{
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Name: "BadFieldCount",
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Input: "a,b,c\nd,e",
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Error: ErrFieldCount,
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UseFieldsPerRecord: true,
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FieldsPerRecord: 0
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},
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{
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Name: "BadFieldCount1",
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Input: `a,b,c`,
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// Error: &ParseError{StartLine: 1, Line: 1, Err: ErrFieldCount},
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UseFieldsPerRecord: true,
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FieldsPerRecord: 2,
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Error: ErrFieldCount
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},
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{
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Name: "FieldCount",
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Input: "a,b,c\nd,e",
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Output: [["a", "b", "c"], ["d", "e"]]
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},
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{
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Name: "TrailingCommaEOF",
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Input: "a,b,c,",
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Output: [["a", "b", "c", ""]]
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},
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{
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Name: "TrailingCommaEOL",
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Input: "a,b,c,\n",
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Output: [["a", "b", "c", ""]]
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},
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{
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Name: "TrailingCommaSpaceEOF",
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Input: "a,b,c, ",
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Output: [["a", "b", "c", ""]],
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TrimLeadingSpace: true
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},
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{
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Name: "TrailingCommaSpaceEOL",
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Input: "a,b,c, \n",
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Output: [["a", "b", "c", ""]],
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TrimLeadingSpace: true
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},
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{
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Name: "TrailingCommaLine3",
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Input: "a,b,c\nd,e,f\ng,hi,",
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Output: [["a", "b", "c"], ["d", "e", "f"], ["g", "hi", ""]],
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TrimLeadingSpace: true
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},
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{
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Name: "NotTrailingComma3",
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Input: "a,b,c, \n",
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Output: [["a", "b", "c", " "]]
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},
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{
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Name: "CommaFieldTest",
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Input: `x,y,z,w
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x,y,z,
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x,y,,
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x,,,
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,,,
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"x","y","z","w"
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"x","y","z",""
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"x","y","",""
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"x","","",""
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"","","",""
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`,
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Output: [
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["x", "y", "z", "w"],
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["x", "y", "z", ""],
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["x", "y", "", ""],
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["x", "", "", ""],
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["", "", "", ""],
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["x", "y", "z", "w"],
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["x", "y", "z", ""],
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["x", "y", "", ""],
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["x", "", "", ""],
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["", "", "", ""]
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]
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},
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{
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Name: "TrailingCommaIneffective1",
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Input: "a,b,\nc,d,e",
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Output: [["a", "b", ""], ["c", "d", "e"]],
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TrimLeadingSpace: true
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},
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{
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Name: "ReadAllReuseRecord",
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Input: "a,b\nc,d",
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Output: [["a", "b"], ["c", "d"]],
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ReuseRecord: true
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},
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// {
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// Name: "StartLine1", // Issue 19019
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// Input: 'a,"b\nc"d,e',
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// Error: true
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// // Error: &ParseError{StartLine: 1, Line: 2, Column: 1, Err: ErrQuote},
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// },
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// {
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// Name: "StartLine2",
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// Input: 'a,b\n"d\n\n,e',
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// Error: true
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// // Error: &ParseError{StartLine: 2, Line: 5, Column: 0, Err: ErrQuote},
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// },
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// {
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// Name: "CRLFInQuotedField", // Issue 21201
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// Input: 'A,"Hello\r\nHi",B\r\n',
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// Output: [["A", "Hello\nHi", "B"]]
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// },
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{
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Name: "BinaryBlobField", // Issue 19410
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Input: "x09\x41\xb4\x1c,aktau",
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Output: [["x09A\xb4\x1c", "aktau"]]
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},
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// {
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// Name: "TrailingCR",
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// Input: "field1,field2\r",
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// Output: [["field1", "field2"]]
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// },
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// {
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// Name: "QuotedTrailingCR",
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// Input: '"field"\r',
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// Output: [['"field"']]
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// },
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// {
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// Name: "QuotedTrailingCRCR",
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// Input: '"field"\r\r',
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// Error: true,
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// // Error: &ParseError{StartLine: 1, Line: 1, Column: 6, Err: ErrQuote},
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// },
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// {
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// Name: "FieldCR",
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// Input: "field\rfield\r",
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// Output: [["field\rfield"]]
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// },
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// {
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// Name: "FieldCRCR",
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// Input: "field\r\rfield\r\r",
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// Output: [["field\r\rfield\r"]]
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// },
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{
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Name: "FieldCRCRLF",
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Input: "field\r\r\nfield\r\r\n",
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Output: [["field\r"], ["field\r"]]
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},
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{
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Name: "FieldCRCRLFCR",
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Input: "field\r\r\n\rfield\r\r\n\r",
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Output: [["field\r"], ["\rfield\r"]]
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},
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// {
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// Name: "FieldCRCRLFCRCR",
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// Input: "field\r\r\n\r\rfield\r\r\n\r\r",
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// Output: [["field\r"], ["\r\rfield\r"], ["\r"]]
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// },
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// {
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// Name: "MultiFieldCRCRLFCRCR",
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// Input: "field1,field2\r\r\n\r\rfield1,field2\r\r\n\r\r,",
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// Output: [["field1", "field2\r"], ["\r\rfield1", "field2\r"], ["\r\r", ""]]
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// },
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{
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Name: "NonASCIICommaAndComment",
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Input: "a£b,c£ \td,e\n€ comment\n",
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Output: [["a", "b,c", "d,e"]],
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TrimLeadingSpace: true,
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Comma: "£",
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Comment: "€"
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},
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{
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Name: "NonASCIICommaAndCommentWithQuotes",
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Input: 'a€" b,"€ c\nλ comment\n',
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Output: [["a", " b,", " c"]],
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Comma: "€",
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Comment: "λ"
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},
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{
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// λ and θ start with the same byte.
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// This tests that the parser doesn't confuse such characters.
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Name: "NonASCIICommaConfusion",
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Input: '"abθcd"λefθgh',
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Output: [["abθcd", "efθgh"]],
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Comma: "λ",
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Comment: "€"
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},
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{
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Name: "NonASCIICommentConfusion",
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Input: "λ\nλ\nθ\nλ\n",
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Output: [["λ"], ["λ"], ["λ"]],
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Comment: "θ"
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},
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// {
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// Name: "QuotedFieldMultipleLF",
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// Input: '"\n\n\n\n"',
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// Output: [["\n\n\n\n"]]
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// },
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// {
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// Name: "MultipleCRLF",
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// Input: "\r\n\r\n\r\n\r\n"
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// },
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// {
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// // The implementation may read each line in several chunks if it doesn't fit entirely
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// // in the read buffer, so we should test the code to handle that condition.
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// Name: "HugeLines",
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// Input: strings.Repeat("#ignore\n", 10000) + strings.Repeat("@", 5000) + "," + strings.Repeat("*", 5000),
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// Output: [[strings.Repeat("@", 5000), strings.Repeat("*", 5000)]],
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// Comment: '#',
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// },
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{
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Name: "QuoteWithTrailingCRLF",
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Input: '"foo"bar"\r\n',
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Error: ErrBareQuote
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// Error: &ParseError{StartLine: 1, Line: 1, Column: 4, Err: ErrQuote},
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},
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{
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Name: "LazyQuoteWithTrailingCRLF",
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Input: '"foo"bar"\r\n',
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Output: [[`foo"bar`]],
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LazyQuotes: true
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},
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// {
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// Name: "DoubleQuoteWithTrailingCRLF",
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// Input: '"foo""bar"\r\n',
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// Output: [[`foo"bar`]]
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// },
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// {
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// Name: "EvenQuotes",
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// Input: `""""""""`,
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// Output: [[`"""`]]
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// },
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// {
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// Name: "OddQuotes",
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// Input: `"""""""`,
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// Error: true
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// // Error:" &ParseError{StartLine: 1, Line: 1, Column: 7, Err: ErrQuote}",
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// },
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// {
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// Name: "LazyOddQuotes",
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// Input: `"""""""`,
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// Output: [[`"""`]],
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// LazyQuotes: true
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// },
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{
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Name: "BadComma1",
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Comma: "\n",
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Error: ErrInvalidDelim
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},
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{
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Name: "BadComma2",
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Comma: "\r",
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Error: ErrInvalidDelim
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},
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{
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Name: "BadComma3",
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Comma: '"',
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Error: ErrInvalidDelim
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},
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{
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Name: "BadComment1",
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Comment: "\n",
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Error: ErrInvalidDelim
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},
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{
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Name: "BadComment2",
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Comment: "\r",
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Error: ErrInvalidDelim
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},
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{
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Name: "BadCommaComment",
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Comma: "X",
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Comment: "X",
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Error: ErrInvalidDelim
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}
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];
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for (const t of testCases) {
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test({
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name: `[CSV] ${t.Name}`,
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async fn(): Promise<void> {
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let comma = ",";
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let comment;
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let fieldsPerRec;
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let trim = false;
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let lazyquote = false;
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if (t.Comma) {
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comma = t.Comma;
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}
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if (t.Comment) {
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comment = t.Comment;
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}
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if (t.TrimLeadingSpace) {
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trim = true;
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}
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if (t.UseFieldsPerRecord) {
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fieldsPerRec = t.FieldsPerRecord;
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}
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if (t.LazyQuotes) {
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lazyquote = t.LazyQuotes;
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}
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let actual;
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if (t.Error) {
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let err;
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try {
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actual = await readAll(new BufReader(new StringReader(t.Input!)), {
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comma: comma,
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comment: comment,
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trimLeadingSpace: trim,
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fieldsPerRecord: fieldsPerRec,
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lazyQuotes: lazyquote
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});
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} catch (e) {
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err = e;
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}
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assert(err);
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assertEquals(err.message, t.Error);
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} else {
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actual = await readAll(new BufReader(new StringReader(t.Input!)), {
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comma: comma,
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comment: comment,
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trimLeadingSpace: trim,
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fieldsPerRecord: fieldsPerRec,
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lazyQuotes: lazyquote
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});
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const expected = t.Output;
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assertEquals(actual, expected);
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}
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}
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});
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}
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|
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const parseTestCases = [
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{
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name: "simple",
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in: "a,b,c",
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header: false,
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result: [["a", "b", "c"]]
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},
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{
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name: "simple Bufreader",
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in: new BufReader(new StringReader("a,b,c")),
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header: false,
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result: [["a", "b", "c"]]
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},
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{
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name: "multiline",
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in: "a,b,c\ne,f,g\n",
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header: false,
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result: [["a", "b", "c"], ["e", "f", "g"]]
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},
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{
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name: "header mapping boolean",
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in: "a,b,c\ne,f,g\n",
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header: true,
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result: [{ a: "e", b: "f", c: "g" }]
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},
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{
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name: "header mapping array",
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in: "a,b,c\ne,f,g\n",
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header: ["this", "is", "sparta"],
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result: [
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{ this: "a", is: "b", sparta: "c" },
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{ this: "e", is: "f", sparta: "g" }
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]
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},
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{
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name: "header mapping object",
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in: "a,b,c\ne,f,g\n",
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header: [{ name: "this" }, { name: "is" }, { name: "sparta" }],
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result: [
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{ this: "a", is: "b", sparta: "c" },
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{ this: "e", is: "f", sparta: "g" }
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]
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},
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{
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name: "header mapping parse entry",
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in: "a,b,c\ne,f,g\n",
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header: [
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|
{
|
|
name: "this",
|
|
parse: (e: string): string => {
|
|
return `b${e}$$`;
|
|
}
|
|
},
|
|
{
|
|
name: "is",
|
|
parse: (e: string): number => {
|
|
return e.length;
|
|
}
|
|
},
|
|
{
|
|
name: "sparta",
|
|
parse: (e: string): unknown => {
|
|
return { bim: `boom-${e}` };
|
|
}
|
|
}
|
|
],
|
|
result: [
|
|
{ this: "ba$$", is: 1, sparta: { bim: `boom-c` } },
|
|
{ this: "be$$", is: 1, sparta: { bim: `boom-g` } }
|
|
]
|
|
},
|
|
{
|
|
name: "multiline parse",
|
|
in: "a,b,c\ne,f,g\n",
|
|
parse: (e: string[]): unknown => {
|
|
return { super: e[0], street: e[1], fighter: e[2] };
|
|
},
|
|
header: false,
|
|
result: [
|
|
{ super: "a", street: "b", fighter: "c" },
|
|
{ super: "e", street: "f", fighter: "g" }
|
|
]
|
|
},
|
|
{
|
|
name: "header mapping object parseline",
|
|
in: "a,b,c\ne,f,g\n",
|
|
header: [{ name: "this" }, { name: "is" }, { name: "sparta" }],
|
|
parse: (e: Record<string, unknown>): unknown => {
|
|
return { super: e.this, street: e.is, fighter: e.sparta };
|
|
},
|
|
result: [
|
|
{ super: "a", street: "b", fighter: "c" },
|
|
{ super: "e", street: "f", fighter: "g" }
|
|
]
|
|
}
|
|
];
|
|
|
|
for (const testCase of parseTestCases) {
|
|
test({
|
|
name: `[CSV] Parse ${testCase.name}`,
|
|
async fn(): Promise<void> {
|
|
const r = await parse(testCase.in, {
|
|
header: testCase.header,
|
|
parse: testCase.parse as (input: unknown) => unknown
|
|
});
|
|
assertEquals(r, testCase.result);
|
|
}
|
|
});
|
|
}
|
|
|
|
runIfMain(import.meta);
|