Add eslint-plugin-jest (#60)

.eslintrc.js

@@ -1,7 +1,28 @@
 module.exports = {
-    extends: 'plugin:nop/nop',
+    extends: [
+        'plugin:nop/nop',
+        'eslint:recommended',
+    ],
+    plugins: [
+        'jest',
+    ],
     env: {
         jest: true,
     },
+    rules: {
+        'jest/consistent-test-it': [ 'error', {
+            fn: 'it',
+            withinDescribe: 'it',
+        } ],
+        'jest/expect-expect': [ 'error', { assertFunctionNames: [ 'expect' ] } ],
+        'jest/no-alias-methods': 'error',
+        'jest/no-disabled-tests': 'error',
+        'jest/no-focused-tests': 'error',
+        'jest/no-identical-title': 'error',
+        'jest/prefer-to-contain': 'error',
+        'jest/prefer-to-have-length': 'error',
+        'jest/no-large-snapshots': [ 'error', { maxSize: 500 } ],
+        'jest/valid-expect': 'error',
+    },
 };
 

.github/workflows/eslint.yml

@@ -9,7 +9,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [18.x, 20.x]
+        node-version: [20.x]
 
     steps:
       - uses: actions/checkout@v4

.github/workflows/tests.yml

@@ -9,7 +9,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [18.x, 20.x]
+        node-version: [18.x, 20.x, 22.x]
 
     steps:
       - uses: actions/checkout@v4

.github/workflows/ts-compile.yml

@@ -9,7 +9,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [18.x, 20.x]
+        node-version: [20.x]
 
     steps:
       - uses: actions/checkout@v4

jest.config.js

@@ -4,5 +4,7 @@ module.exports = {
         '/tests/server.js',
         '/tests/helpers.js',
     ],
+    testEnvironment: 'node',
+    testRunner: 'jest-circus/runner',
 };