| 1 | import type { CreateRule, Fix, Fixer, Visitor } from "@oxlint/plugins" |
| 2 | |
| 3 | export interface ReportedError { |
| 4 | node: unknown |
| 5 | message: string |
| 6 | fix?: (fixer: Pick<Fixer, "replaceTextRange">) => Fix |
| 7 | } |
| 8 | |
| 9 | export interface TestContextOptions { |
| 10 | sourceCode?: string |
| 11 | filename?: string |
| 12 | cwd?: string |
| 13 | ruleOptions?: Array<unknown> |
| 14 | } |
| 15 | |
| 16 | export const createTestContext = (options: TestContextOptions = {}) => { |
| 17 | const { |
| 18 | sourceCode = "", |
| 19 | filename = "/test/file.ts", |
| 20 | cwd = "/test", |
| 21 | ruleOptions = [] |
| 22 | } = options |
| 23 | |
| 24 | const errors: Array<ReportedError> = [] |
| 25 | const context = { |
| 26 | id: "test/rule", |
| 27 | filename, |
| 28 | physicalFilename: filename, |
| 29 | cwd, |
| 30 | options: ruleOptions, |
| 31 | getFilename: () => filename, |
| 32 | getCwd: () => cwd, |
| 33 | report(reportOptions: ReportedError) { |
| 34 | errors.push(reportOptions) |
| 35 | }, |
| 36 | sourceCode: { |
| 37 | text: sourceCode, |
| 38 | getText(node?: { range?: [number, number] } | null) { |
| 39 | if (node?.range) { |
| 40 | return sourceCode.slice(node.range[0], node.range[1]) |
| 41 | } |
| 42 | return sourceCode |
| 43 | } |
| 44 | } |
| 45 | } |
| 46 | return { errors, context } |
| 47 | } |
| 48 | |
| 49 | export const runRule = ( |
| 50 | rule: CreateRule, |
| 51 | visitor: keyof Visitor, |
| 52 | node: unknown, |
| 53 | options: TestContextOptions = {} |
| 54 | ): Array<ReportedError> => { |
| 55 | const { context, errors } = createTestContext(options) |
| 56 | const visitors = rule.create(context as never) |
| 57 | const handler = visitors[visitor] |
| 58 | if (handler) { |
| 59 | ;(handler as (node: unknown) => void)(node) |
| 60 | } |
| 61 | return errors |
| 62 | } |