General cleanup

.github/workflows/ci.yml

@@ -0,0 +1,27 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        os: [ ubuntu-latest, windows-latest ]
+        node: [ 12, 14, 16 ]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js ${{ matrix.node }}
+        uses: actions/setup-node@v2
+        with:
+          node-version: ${{ matrix.node }}
+      - name: Install dependencies
+        run: npm ci
+#      - name: Lint TypeScript
+#        run: npm run lint
+      - name: Run test cases
+        run: npm test

package.json

@@ -38,13 +38,11 @@
     "@types/mocha": "^9.0.0",
     "@types/node": "^12.12.6",
     "chai": "^4.3.4",
-    "link-self": "^0.2.0",
     "mocha": "^9.1.1",
     "shx": "^0.3.3",
-    "typescript": "^4.4.2"
+    "typescript": "4.5.0-beta"
   },
   "scripts": {
-    "prepare": "link-self",
     "build": "tsc -b src && shx cp ./package.cjs.json ./dist/cjs/package.json",
     "pretest": "npm run build",
     "test": "tsc -b test && mocha",

test/tsconfig.json

@@ -3,8 +3,7 @@
   "compilerOptions": {
     "composite": false,
     "declaration": false,
-    "moduleResolution": "Node",
-    "allowSyntheticDefaultImports": true,
+    "module": "Node12",
     "outDir": "",
     "types": ["node", "mocha", "chai"]
   },

test/unknown.spec.ts

@@ -1,6 +1,5 @@
 import {hasProperty} from "unknown";
-import chai from "chai";
-const expect = chai.expect;
+import {expect} from "chai";
 
 type KnownObject = { known: "known" };