chore: setup test

Author: antfu

.eslintignore

@@ -0,0 +1,3 @@
+node_modules
+dist
+*.snap

.eslintrc.json

@@ -1,5 +1,8 @@
 {
   "extends": "@antfu/eslint-config",
+  "env": {
+    "jest": true
+  },
   "rules": {
     "@typescript-eslint/no-unused-vars": "off"
   }

.github/workflows/test.yml

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+name: Test
+
+on:
+  push:
+    branches:
+      - main
+      - master
+
+  pull_request:
+    branches:
+      - main
+      - master
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      matrix:
+        node-version: [12.x, 14.x]
+        os: [ubuntu-latest, windows-latest, macos-latest]
+      fail-fast: false
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+
+      - name: Setup
+        run: npm i -g pnpm @antfu/ni
+
+      - name: Install
+        run: nci
+
+      - name: Lint
+        run: nr lint --if-present
+
+      - name: Test
+        run: nr test --if-present

.npmrc

@@ -0,0 +1 @@
+ignore-workspace-root-check=true

.vscode/settings.json

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+{
+  "typescript.tsdk": "node_modules/typescript/lib"
+}