style: add vitest lint plugin and fix new errors

Author: JasonWeinzierl

eslint.config.mjs

@@ -5,6 +5,7 @@ import gitignore from 'eslint-config-flat-gitignore';
 import importX from 'eslint-plugin-import-x';
 import n from 'eslint-plugin-n';
 import tseslint from 'typescript-eslint';
+import vitest from '@vitest/eslint-plugin';
 
 export default tseslint.config(gitignore(), {
   files: [
@@ -80,4 +81,11 @@ export default tseslint.config(gitignore(), {
       },
     ],
   },
+}, {
+  files: [
+    'tests/**/*.ts',
+  ],
+  extends: [
+    vitest.configs.recommended,
+  ],
 });

package.json

@@ -69,6 +69,7 @@
     "@types/node": "^18.18.0",
     "@typescript-eslint/rule-tester": "^8.12.2",
     "@vitest/coverage-v8": "^2.1.4",
+    "@vitest/eslint-plugin": "^1.1.7",
     "bumpp": "^9.8.0",
     "eslint": "^9.13.0",
     "eslint-config-flat-gitignore": "^0.3.0",

tests/utils.test.ts

@@ -7,42 +7,42 @@ describe('utils', () => {
     const regExp = createRegExpForWords(['add'])!;
 
     it('should match action literals', () => {
-      expect(`"ADD"`).to.match(regExp);
-      expect(`"ADD_SOMETHING"`).to.match(regExp);
-      expect(`"SOMETHING_ADD"`).to.match(regExp);
+      expect(`"ADD"`).toMatch(regExp);
+      expect(`"ADD_SOMETHING"`).toMatch(regExp);
+      expect(`"SOMETHING_ADD"`).toMatch(regExp);
 
-      expect(`'ADD'`).to.match(regExp);
-      expect(`'ADD_SOMETHING'`).to.match(regExp);
-      expect(`'SOMETHING_ADD'`).to.match(regExp);
+      expect(`'ADD'`).toMatch(regExp);
+      expect(`'ADD_SOMETHING'`).toMatch(regExp);
+      expect(`'SOMETHING_ADD'`).toMatch(regExp);
 
-      expect('`ADD`').to.match(regExp);
-      expect('`ADD_SOMETHING`').to.match(regExp);
-      expect('`SOMETHING_ADD`').to.match(regExp);
+      expect('`ADD`').toMatch(regExp);
+      expect('`ADD_SOMETHING`').toMatch(regExp);
+      expect('`SOMETHING_ADD`').toMatch(regExp);
     });
 
     it('should match action symbols', () => {
-      expect('ADD').to.match(regExp);
-      expect('ADD_SOMETHING').to.match(regExp);
-      expect('SOMETHING_ADD').to.match(regExp);
+      expect('ADD').toMatch(regExp);
+      expect('ADD_SOMETHING').toMatch(regExp);
+      expect('SOMETHING_ADD').toMatch(regExp);
 
-      expect(decamelize('Add')).to.match(regExp);
-      expect(decamelize('AddSomething')).to.match(regExp);
-      expect(decamelize('SomethingAdd')).to.match(regExp);
+      expect(decamelize('Add')).toMatch(regExp);
+      expect(decamelize('AddSomething')).toMatch(regExp);
+      expect(decamelize('SomethingAdd')).toMatch(regExp);
     });
 
     it('should not match words within larger words', () => {
-      expect('READD').to.not.match(regExp);
-      expect('Readd').to.not.match(regExp);
+      expect('READD').not.toMatch(regExp);
+      expect('Readd').not.toMatch(regExp);
 
-      expect('ADDER').to.not.match(regExp);
-      expect('Adder').to.not.match(regExp);
+      expect('ADDER').not.toMatch(regExp);
+      expect('Adder').not.toMatch(regExp);
 
-      expect('LADDER').to.not.match(regExp);
-      expect('Ladder').to.not.match(regExp);
+      expect('LADDER').not.toMatch(regExp);
+      expect('Ladder').not.toMatch(regExp);
     });
 
     it('should create a RegExp from a string', () => {
-      expect(createRegExpForWords('.')?.toString()).to.equal('/./i');
+      expect(createRegExpForWords('.')?.toString()).toEqual('/./i');
     });
   });
 });

yarn.lock

@@ -1565,6 +1565,23 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@vitest/eslint-plugin@npm:^1.1.7":
+  version: 1.1.7
+  resolution: "@vitest/eslint-plugin@npm:1.1.7"
+  peerDependencies:
+    "@typescript-eslint/utils": ">= 8.0"
+    eslint: ">= 8.57.0"
+    typescript: ">= 5.0.0"
+    vitest: "*"
+  peerDependenciesMeta:
+    typescript:
+      optional: true
+    vitest:
+      optional: true
+  checksum: 10c0/a2c7e3361dcf02b214eaaead63838abd0a07f0fa6294871b61df4e5dc3ca951056acf75b64feeec196e12f129306dc5780601dd94a88f9df3c2e6623863b39f2
+  languageName: node
+  linkType: hard
+
 "@vitest/expect@npm:2.1.4":
   version: 2.1.4
   resolution: "@vitest/expect@npm:2.1.4"
@@ -2910,6 +2927,7 @@ __metadata:
     "@typescript-eslint/scope-manager": "npm:^8.12.2"
     "@typescript-eslint/utils": "npm:^8.12.2"
     "@vitest/coverage-v8": "npm:^2.1.4"
+    "@vitest/eslint-plugin": "npm:^1.1.7"
     bumpp: "npm:^9.8.0"
     common-tags: "npm:^1.8.0"
     decamelize: "npm:^5.0.0 || ^6.0.0"