test: reuse the rule tester

Author: merceyz

tests/rules/rule-tester.ts

@@ -0,0 +1,9 @@
+import { RuleTester } from "@typescript-eslint/rule-tester";
+import * as vitest from "vitest";
+
+RuleTester.afterAll = vitest.afterAll;
+RuleTester.it = vitest.it;
+RuleTester.itOnly = vitest.it.only;
+RuleTester.describe = vitest.describe;
+
+export const ruleTester = new RuleTester();

tests/rules/typed-input.test.ts

@@ -1,14 +1,6 @@
-import { RuleTester } from "@typescript-eslint/rule-tester";
-import * as vitest from "vitest";
 import { createTypedInputRule } from "../../src/rules/typed-input.js";
 import SQLite from "better-sqlite3";
-
-RuleTester.afterAll = vitest.afterAll;
-RuleTester.it = vitest.it;
-RuleTester.itOnly = vitest.it.only;
-RuleTester.describe = vitest.describe;
-
-const ruleTester = new RuleTester();
+import { ruleTester } from "./rule-tester.js";
 
 const db = new SQLite(":memory:");
 db.exec(`

tests/rules/typed-result.test.ts

@@ -1,14 +1,6 @@
-import { RuleTester } from "@typescript-eslint/rule-tester";
-import * as vitest from "vitest";
 import { createTypedResultRule } from "../../src/rules/typed-result.js";
 import SQLite from "better-sqlite3";
-
-RuleTester.afterAll = vitest.afterAll;
-RuleTester.it = vitest.it;
-RuleTester.itOnly = vitest.it.only;
-RuleTester.describe = vitest.describe;
-
-const ruleTester = new RuleTester();
+import { ruleTester } from "./rule-tester.js";
 
 const db = new SQLite(":memory:");
 db.exec(`

tests/rules/valid-query.test.ts

@@ -1,14 +1,6 @@
-import { RuleTester } from "@typescript-eslint/rule-tester";
-import * as vitest from "vitest";
 import { createValidQueryRule } from "../../src/rules/valid-query.js";
 import SQLite from "better-sqlite3";
-
-RuleTester.afterAll = vitest.afterAll;
-RuleTester.it = vitest.it;
-RuleTester.itOnly = vitest.it.only;
-RuleTester.describe = vitest.describe;
-
-const ruleTester = new RuleTester();
+import { ruleTester } from "./rule-tester.js";
 
 const db = new SQLite(":memory:");
 db.exec(`