Merge commit '36c66dd290d3ce6eb1ccd310d0c658d4a32bb8eb' as 'repos/effect'

repos/effect/packages/tools/oxc/test/utils.ts

@@ -0,0 +1,61 @@
+import type { CreateRule, Visitor } from "oxlint"
+
+export interface ReportedError {
+  node: unknown
+  message: string
+}
+
+export interface TestContextOptions {
+  sourceCode?: string
+  filename?: string
+  cwd?: string
+  ruleOptions?: Array<unknown>
+}
+
+export const createTestContext = (options: TestContextOptions = {}) => {
+  const {
+    sourceCode = "",
+    filename = "/test/file.ts",
+    cwd = "/test",
+    ruleOptions = []
+  } = options
+
+  const errors: Array<ReportedError> = []
+  const context = {
+    id: "test/rule",
+    filename,
+    physicalFilename: filename,
+    cwd,
+    options: ruleOptions,
+    getFilename: () => filename,
+    getCwd: () => cwd,
+    report(reportOptions: ReportedError) {
+      errors.push(reportOptions)
+    },
+    sourceCode: {
+      text: sourceCode,
+      getText(node?: { range?: [number, number] } | null) {
+        if (node?.range) {
+          return sourceCode.slice(node.range[0], node.range[1])
+        }
+        return sourceCode
+      }
+    }
+  }
+  return { errors, context }
+}
+
+export const runRule = (
+  rule: CreateRule,
+  visitor: keyof Visitor,
+  node: unknown,
+  options: TestContextOptions = {}
+): Array<ReportedError> => {
+  const { context, errors } = createTestContext(options)
+  const visitors = rule.create(context as never)
+  const handler = visitors[visitor]
+  if (handler) {
+    ;(handler as (node: unknown) => void)(node)
+  }
+  return errors
+}