.github/workflows/lint.yml

@@ -13,7 +13,7 @@ jobs:
       - uses: "actions/checkout@v4.2.2"
 
       - name: "Setup Node.js"
-        uses: "actions/setup-node@v4.2.0"
+        uses: "actions/setup-node@v4.1.0"
         with:
           node-version: "lts/*"
           cache: "npm"

.github/workflows/release.yml

@@ -19,7 +19,7 @@ jobs:
           persist-credentials: false
 
       - name: "Setup Node.js"
-        uses: "actions/setup-node@v4.2.0"
+        uses: "actions/setup-node@v4.1.0"
         with:
           node-version: "lts/*"
           cache: "npm"

.github/workflows/test.yml

@@ -13,7 +13,7 @@ jobs:
       - uses: "actions/checkout@v4.2.2"
 
       - name: "Setup Node.js"
-        uses: "actions/setup-node@v4.2.0"
+        uses: "actions/setup-node@v4.1.0"
         with:
           node-version: "lts/*"
           cache: "npm"

README.md

@@ -35,13 +35,13 @@ More information about **formatting rules** vs **code-quality rules** can be fou
 
 ```sh
 npm install --save-dev \
-  eslint@^9.21.0 \
-  eslint-plugin-promise@^7.2.1 \
-  eslint-plugin-unicorn@^57.0.0 \
-  eslint-plugin-import-x@^4.6.1 \
-  globals@^16.0.0 \
-  typescript@^5.7.3 \
-  typescript-eslint@^8.24.1 \
+  eslint@^9.12.0 \
+  eslint-plugin-promise@^7.1.0 \
+  eslint-plugin-unicorn@^56.0.0 \
+  eslint-plugin-import-x@^4.3.1 \
+  globals@^15.10.0 \
+  typescript@~5.5.4 \
+  typescript-eslint@^8.8.0 \
   eslint-config-conventions@latest
 ```
 

eslint.config.js

@@ -132,8 +132,6 @@ export default typescriptESLint.config(
       "no-array-constructor": "error",
       "no-caller": "error",
       "no-delete-var": "error",
-      "no-implicit-coercion": "error",
-      "no-extra-boolean-cast": ["error", { enforceForInnerExpressions: true }],
       "no-empty": [
         "error",
         {
@@ -225,7 +223,6 @@ export default typescriptESLint.config(
       "unicorn/better-regex": "error",
       "unicorn/catch-error-name": "error",
       "unicorn/custom-error-definition": "error",
-      "unicorn/consistent-date-clone": "error",
       "unicorn/error-message": "error",
       "unicorn/escape-case": "error",
       "unicorn/explicit-length-check": "error",
@@ -234,10 +231,9 @@ export default typescriptESLint.config(
       "unicorn/no-array-for-each": "error",
       "unicorn/no-array-method-this-argument": "error",
       "unicorn/no-document-cookie": "error",
-      "unicorn/no-named-default": "error",
       "unicorn/no-empty-file": "error",
       "unicorn/no-hex-escape": "error",
-      "unicorn/no-instanceof-builtins": "error",
+      "unicorn/no-instanceof-array": "error",
       "unicorn/no-new-array": "error",
       "unicorn/no-new-buffer": "error",
       "unicorn/no-this-assignment": "error",
@@ -251,7 +247,6 @@ export default typescriptESLint.config(
       "unicorn/prefer-modern-math-apis": "error",
       "unicorn/prefer-structured-clone": "error",
       "unicorn/template-indent": "error",
-      "unicorn/consistent-existence-index-check": "error",
 
       "import-x/no-absolute-path": "error",
       "import-x/no-webpack-loader-syntax": "error",
@@ -368,6 +363,7 @@ export default typescriptESLint.config(
       ],
 
       "@typescript-eslint/method-signature-style": "error",
+      "@typescript-eslint/unbound-method": "error",
 
       "@typescript-eslint/naming-convention": [
         "error",
@@ -392,19 +388,7 @@ export default typescriptESLint.config(
         },
       ],
 
-      "@typescript-eslint/no-floating-promises": [
-        "error",
-        {
-          allowForKnownSafeCalls: [
-            {
-              from: "package",
-              name: ["it", "describe"],
-              package: "node:test",
-            },
-          ],
-        },
-      ],
-
+      "@typescript-eslint/no-floating-promises": "error",
       "@typescript-eslint/no-for-in-array": "error",
       "@typescript-eslint/no-invalid-void-type": "error",
       "@typescript-eslint/no-misused-new": "error",

package.json

@@ -45,24 +45,25 @@
     "release": "semantic-release"
   },
   "peerDependencies": {
-    "eslint": "^9.21.0",
-    "eslint-plugin-promise": "^7.2.1",
-    "eslint-plugin-unicorn": "^57.0.0",
-    "eslint-plugin-import-x": "^4.6.1",
-    "globals": "^16.0.0",
-    "typescript-eslint": "^8.24.1"
+    "eslint": "^9.12.0",
+    "eslint-plugin-promise": "^7.1.0",
+    "eslint-plugin-unicorn": "^56.0.0",
+    "eslint-plugin-import-x": "^4.3.1",
+    "globals": "^15.10.0",
+    "typescript-eslint": "^8.8.0"
   },
   "devDependencies": {
-    "@types/node": "22.13.5",
-    "globals": "16.0.0",
-    "editorconfig-checker": "6.0.1",
-    "eslint": "9.21.0",
+    "@types/eslint__js": "8.42.3",
+    "@types/node": "22.10.2",
+    "globals": "15.13.0",
+    "editorconfig-checker": "6.0.0",
+    "eslint": "9.17.0",
     "eslint-plugin-promise": "7.2.1",
-    "eslint-plugin-unicorn": "57.0.0",
-    "eslint-plugin-import-x": "4.6.1",
-    "typescript-eslint": "8.24.1",
-    "prettier": "3.5.2",
-    "semantic-release": "24.2.3",
-    "typescript": "5.7.3"
+    "eslint-plugin-unicorn": "56.0.1",
+    "eslint-plugin-import-x": "4.5.0",
+    "typescript-eslint": "8.18.0",
+    "prettier": "3.4.2",
+    "semantic-release": "24.2.0",
+    "typescript": "5.7.2"
   }
 }

test/validate-config.js

@@ -0,0 +1,77 @@
+import test from "node:test"
+import assert from "node:assert/strict"
+
+import { ESLint } from "eslint"
+
+const eslint = new ESLint()
+
+test("ensure we validate correctly JavaScript files", async () => {
+  const [noErrors] = await eslint.lintFiles(
+    "test/fixtures/javascript-no-errors.js",
+  )
+  const [withErrors] = await eslint.lintFiles(
+    "test/fixtures/javascript-with-errors.js",
+  )
+  assert.strictEqual(noErrors?.errorCount, 0, JSON.stringify(noErrors, null, 2))
+  assert.strictEqual(
+    withErrors?.errorCount,
+    3,
+    JSON.stringify(withErrors, null, 2),
+  )
+})
+
+test("ensure we do not use deprecated rules", async () => {
+  const [javascriptLintResult] = await eslint.lintFiles(
+    "test/fixtures/javascript-no-errors.js",
+  )
+  const [typescriptLintResult] = await eslint.lintFiles(
+    "test/fixtures/typescript-no-errors.ts",
+  )
+  assert.strictEqual(
+    javascriptLintResult.usedDeprecatedRules.length,
+    0,
+    JSON.stringify(javascriptLintResult, null, 2),
+  )
+  assert.strictEqual(
+    typescriptLintResult.usedDeprecatedRules.length,
+    0,
+    JSON.stringify(typescriptLintResult, null, 2),
+  )
+})
+
+test("ensure we validate correctly TypeScript files", async () => {
+  const [noErrors] = await eslint.lintFiles(
+    "test/fixtures/typescript-no-errors.ts",
+  )
+  const [withErrors] = await eslint.lintFiles(
+    "test/fixtures/javascript-with-errors.js",
+  )
+  assert.strictEqual(noErrors?.errorCount, 0, JSON.stringify(noErrors, null, 2))
+  assert.strictEqual(
+    withErrors?.errorCount,
+    3,
+    JSON.stringify(withErrors, null, 2),
+  )
+})
+
+test("ensure we allow top-level await", async () => {
+  const [lintResult] = await eslint.lintFiles(
+    "test/fixtures/top-level-await.mjs",
+  )
+  assert.strictEqual(
+    lintResult?.errorCount,
+    0,
+    JSON.stringify(lintResult, null, 2),
+  )
+})
+
+test("ensure we allow to ignore floating promise with void operator (@typescript-eslint/no-floating-promises)", async () => {
+  const [lintResult] = await eslint.lintFiles(
+    "test/fixtures/typescript-no-errors-ignore-promise.ts",
+  )
+  assert.strictEqual(
+    lintResult?.errorCount,
+    0,
+    JSON.stringify(lintResult, null, 2),
+  )
+})

test/validate-config.test.js

@@ -1,87 +0,0 @@
-import assert from "node:assert/strict"
-import { describe, it } from "node:test"
-
-import { ESLint } from "eslint"
-
-const eslint = new ESLint()
-
-describe("ESLint configuration", () => {
-  it("should validate correctly JavaScript files", async () => {
-    const [noErrors] = await eslint.lintFiles(
-      "test/fixtures/javascript-no-errors.js",
-    )
-    const [withErrors] = await eslint.lintFiles(
-      "test/fixtures/javascript-with-errors.js",
-    )
-    assert.strictEqual(
-      noErrors?.errorCount,
-      0,
-      JSON.stringify(noErrors, null, 2),
-    )
-    assert.strictEqual(
-      withErrors?.errorCount,
-      3,
-      JSON.stringify(withErrors, null, 2),
-    )
-  })
-
-  it("should validate correctly TypeScript files", async () => {
-    const [noErrors] = await eslint.lintFiles(
-      "test/fixtures/typescript-no-errors.ts",
-    )
-    const [withErrors] = await eslint.lintFiles(
-      "test/fixtures/javascript-with-errors.js",
-    )
-    assert.strictEqual(
-      noErrors?.errorCount,
-      0,
-      JSON.stringify(noErrors, null, 2),
-    )
-    assert.strictEqual(
-      withErrors?.errorCount,
-      3,
-      JSON.stringify(withErrors, null, 2),
-    )
-  })
-
-  it("should not use deprecated rules", async () => {
-    const [javascriptLintResult] = await eslint.lintFiles(
-      "test/fixtures/javascript-no-errors.js",
-    )
-    const [typescriptLintResult] = await eslint.lintFiles(
-      "test/fixtures/typescript-no-errors.ts",
-    )
-    assert.strictEqual(
-      javascriptLintResult.usedDeprecatedRules.length,
-      0,
-      JSON.stringify(javascriptLintResult, null, 2),
-    )
-    assert.strictEqual(
-      typescriptLintResult.usedDeprecatedRules.length,
-      0,
-      JSON.stringify(typescriptLintResult, null, 2),
-    )
-  })
-
-  it("should allow top-level await", async () => {
-    const [lintResult] = await eslint.lintFiles(
-      "test/fixtures/top-level-await.mjs",
-    )
-    assert.strictEqual(
-      lintResult?.errorCount,
-      0,
-      JSON.stringify(lintResult, null, 2),
-    )
-  })
-
-  it("should allow to ignore floating promise with void operator (@typescript-eslint/no-floating-promises)", async () => {
-    const [lintResult] = await eslint.lintFiles(
-      "test/fixtures/typescript-no-errors-ignore-promise.ts",
-    )
-    assert.strictEqual(
-      lintResult?.errorCount,
-      0,
-      JSON.stringify(lintResult, null, 2),
-    )
-  })
-})