feat!: code and tests

.eslintrc.cjs

@@ -2,27 +2,49 @@ module.exports = {
     env: {
         node: true,
         es2021: true,
-        jest: true,
     },
-    plugins: ["jest", "@typescript-eslint"],
+    plugins: ["@typescript-eslint"],
     extends: [
         "eslint:recommended",
         "plugin:@typescript-eslint/recommended",
+        "plugin:import/errors",
+        "plugin:import/warnings",
+        "plugin:import/typescript",
         "plugin:node/recommended",
         "plugin:prettier/recommended",
-        "plugin:jest/recommended",
     ],
     parser: "@typescript-eslint/parser",
     parserOptions: {
         ecmaVersion: 12,
         sourceType: "module",
     },
+    rules: {
+        "node/no-missing-import": "off",
+        "import/order": [
+            "warn",
+            {
+                groups: ["builtin", "external", "parent", "sibling", "index"],
+                "newlines-between": "always",
+                alphabetize: {
+                    order: "asc",
+                    caseInsensitive: true,
+                },
+            },
+        ],
+    },
     overrides: [
         {
             files: ["*.ts"],
-            rules: {
-                "node/no-missing-import": "off",
-            },
         },
     ],
+    settings: {
+        "import/parsers": {
+            "@typescript-eslint/parser": [".ts"],
+        },
+        "import/resolver": {
+            typescript: {
+                alwaysTryTypes: true,
+            },
+        },
+    },
 };

.github/workflows/CI.yml

@@ -28,4 +28,4 @@ jobs:
                   cache: "npm"
             - run: npm ci
             - run: npm run lint
-            - run: npm test
+            - run: npm test:coverage

.gitignore

@@ -1,4 +1,5 @@
 /node_modules
+/coverage
 /dist
 
 # Prevent local npm `pack` experiments getting committed