[Tests] use re-exported RuleTester

This reduces the diff in #2996.

Author: G-Rath

CHANGELOG.md

@@ -1,3 +1,5 @@
 export function withoutAutofixOutput(test) {
   return { ...test, output: test.code };
 }
+
+export { RuleTester } from 'eslint';

tests/src/rule-tester.js

@@ -1,4 +1,4 @@
-import { RuleTester } from 'eslint';
+import { RuleTester } from '../rule-tester';
 import { test, parsers, tsVersionSatisfies, eslintVersionSatisfies, typescriptEslintParserSatisfies } from '../utils';
 
 const rule = require('rules/consistent-type-specifier-style');

tests/src/rules/consistent-type-specifier-style.js

@@ -1,6 +1,6 @@
 import path from 'path';
 import { test, testVersion, SYNTAX_CASES, getTSParsers, parsers } from '../utils';
-import { RuleTester } from 'eslint';
+import { RuleTester } from '../rule-tester';
 import semver from 'semver';
 import { version as tsEslintVersion } from 'typescript-eslint-parser/package.json';
 

tests/src/rules/default.js

@@ -1,6 +1,5 @@
 import { SYNTAX_CASES, getTSParsers, parsers } from '../utils';
-import { RuleTester } from 'eslint';
-import { withoutAutofixOutput } from '../rule-tester';
+import { RuleTester, withoutAutofixOutput } from '../rule-tester';
 import semver from 'semver';
 
 const rule = require('rules/dynamic-import-chunkname');

tests/src/rules/dynamic-import-chunkname.js

@@ -1,6 +1,6 @@
 import { test, testFilePath, SYNTAX_CASES, getTSParsers, testVersion } from '../utils';
 
-import { RuleTester } from 'eslint';
+import { RuleTester } from '../rule-tester';
 import eslintPkg from 'eslint/package.json';
 import semver from 'semver';
 import { version as tsEslintVersion } from 'typescript-eslint-parser/package.json';

tests/src/rules/export.js

@@ -1,6 +1,6 @@
 import { test } from '../utils';
 
-import { RuleTester } from 'eslint';
+import { RuleTester } from '../rule-tester';
 import rule from 'rules/exports-last';
 
 const ruleTester = new RuleTester();

tests/src/rules/exports-last.js

@@ -1,4 +1,4 @@
-import { RuleTester } from 'eslint';
+import { RuleTester } from '../rule-tester';
 import rule from 'rules/extensions';
 import { getTSParsers, test, testFilePath, parsers } from '../utils';
 

tests/src/rules/extensions.js

@@ -2,7 +2,7 @@ import { test, getTSParsers, testVersion } from '../utils';
 import fs from 'fs';
 import path from 'path';
 
-import { RuleTester } from 'eslint';
+import { RuleTester } from '../rule-tester';
 
 const ruleTester = new RuleTester();
 const rule = require('rules/first');

tests/src/rules/first.js

@@ -1,5 +1,5 @@
 import { test } from '../utils';
-import { RuleTester } from 'eslint';
+import { RuleTester } from '../rule-tester';
 import rule from 'rules/group-exports';
 import { resolve } from 'path';
 import { default as babelPresetFlow } from 'babel-preset-flow';