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test: Validate local files are valid #8179
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| 'use strict'; | ||
|
|
||
| import {readFileSync, readdirSync} from 'fs'; | ||
| import {join} from 'path'; | ||
| import {describe, it, expect} from 'vitest'; | ||
|
|
||
| const repoRoot = join(__dirname, '..', '..', '..', '..'); | ||
| const localesDir = join(repoRoot, 'src', 'locales'); | ||
| const localeFiles = readdirSync(localesDir) | ||
| .filter((f) => f.endsWith('.json')) | ||
| .map((f) => join(localesDir, f)); | ||
|
|
||
| const macroCandidateRe = /\{\[[^]*?]}/g; | ||
|
|
||
| const parseMacro = (candidate: string): {macroName: string, options: string} | null => { | ||
| if (!candidate.startsWith('{[') || !candidate.endsWith(']}')) return null; | ||
| const body = candidate.slice(2, -2).trim(); | ||
| const openParen = body.indexOf('('); | ||
| const closeParen = body.indexOf(')', openParen + 1); | ||
| if (openParen <= 0 || closeParen <= openParen + 1) return null; | ||
| const macroName = body.slice(0, openParen).trim(); | ||
| const variableName = body.slice(openParen + 1, closeParen).trim(); | ||
| if (!/^[a-zA-Z]+$/.test(macroName) || !/^[a-zA-Z]+$/.test(variableName)) return null; | ||
| return {macroName, options: body.slice(closeParen + 1).trim()}; | ||
| }; | ||
|
|
||
| const parsePluralOptionNames = (options: string): string[] | null => { | ||
| if (options === '') return []; | ||
| const names: string[] = []; | ||
| let i = 0; | ||
| while (i < options.length) { | ||
| while (i < options.length && /\s/.test(options[i])) i++; | ||
| const nameStart = i; | ||
| while (i < options.length && /[a-zA-Z]/.test(options[i])) i++; | ||
| if (nameStart === i || options[i] !== ':') return null; | ||
| names.push(options.slice(nameStart, i)); | ||
| i++; | ||
| while (i < options.length) { | ||
| if (options[i] === ',') { | ||
| i++; | ||
| break; | ||
| } | ||
| i++; | ||
| } | ||
| } | ||
| return names; | ||
| }; | ||
| const allowedMacros = new Set(['plural']); | ||
| const allowedPluralOptions = new Set(['zero', 'one', 'two', 'few', 'many', 'other']); | ||
|
|
||
| describe('locale files', () => { | ||
| it('current locale corpus contains no unsupported macros', () => { | ||
| const failures: string[] = []; | ||
| for (const file of localeFiles) { | ||
| const rel = file.replace(repoRoot + '/', ''); | ||
| const parsed = JSON.parse(readFileSync(file, 'utf8')) as Record<string, string>; | ||
| for (const [key, value] of Object.entries(parsed)) { | ||
| if (key === '@metadata') continue; | ||
| for (const candidate of value.match(macroCandidateRe) ?? []) { | ||
| const macro = parseMacro(candidate); | ||
| if (macro == null) { | ||
| failures.push(`${rel}:${key}:malformed:${candidate}`); | ||
| continue; | ||
| } | ||
| const {macroName, options} = macro; | ||
| if (!allowedMacros.has(macroName)) failures.push(`${rel}:${key}:${macroName}`); | ||
| if (macroName !== 'plural') continue; | ||
| const optionNames = parsePluralOptionNames(options); | ||
| if (optionNames == null) { | ||
| failures.push(`${rel}:${key}:malformed:${candidate}`); | ||
| continue; | ||
| } | ||
| for (const name of optionNames) { | ||
| if (!allowedPluralOptions.has(name)) failures.push(`${rel}:${key}:${name}`); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| expect(failures).toEqual([]); | ||
| }); | ||
|
|
||
| for (const file of localeFiles) { | ||
| const rel = file.replace(repoRoot + '/', ''); | ||
|
|
||
| it(`${rel} contains a JSON object of string translations`, () => { | ||
| const parsed = JSON.parse(readFileSync(file, 'utf8')); | ||
| expect(parsed, `${rel} must contain a JSON object`).toBeTruthy(); | ||
| expect(Array.isArray(parsed), `${rel} must not contain a JSON array`).toBe(false); | ||
| expect(typeof parsed, `${rel} must contain a JSON object`).toBe('object'); | ||
| for (const [key, value] of Object.entries(parsed as Record<string, unknown>)) { | ||
| if (key === '@metadata') { | ||
| expect(value != null && typeof value === 'object' && !Array.isArray(value), | ||
| `${rel} key @metadata must map to an object`).toBe(true); | ||
| continue; | ||
| } | ||
| expect(typeof value, `${rel} key ${key} must map to a string`).toBe('string'); | ||
| } | ||
| }); | ||
|
|
||
| } | ||
| }); | ||
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