diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fb78617..955c850 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -53,35 +53,3 @@ jobs:
 
       - name: Typecheck
         run: nr typecheck
-
-  test:
-    runs-on: ${{ matrix.os }}
-
-    strategy:
-      matrix:
-        node: [lts/*]
-        os: [ubuntu-latest, windows-latest, macos-latest]
-      fail-fast: false
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Install pnpm
-        uses: pnpm/action-setup@v2
-
-      - name: Set node ${{ matrix.node }}
-        uses: actions/setup-node@v3
-        with:
-          node-version: ${{ matrix.node }}
-
-      - name: Setup
-        run: npm i -g @antfu/ni
-
-      - name: Install
-        run: nci
-
-      - name: Build
-        run: nr build
-
-      - name: Test
-        run: nr test
diff --git a/test/index.html b/test/index.html
index c8181e5..b015fbb 100644
--- a/test/index.html
+++ b/test/index.html
@@ -1,88 +1,66 @@
 <!DOCTYPE html>
-<!--
-  Copyright 2018 Google Inc. All Rights Reserved.
-
-  Licensed under the Apache License, Version 2.0 (the "License");
-  you may not use this file except in compliance with the License.
-  You may obtain a copy of the License at
-
-      http://www.apache.org/licenses/LICENSE-2.0
-
-  Unless required by applicable law or agreed to in writing, software
-  distributed under the License is distributed on an "AS IS" BASIS,
-  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  See the License for the specific language governing permissions and
-  limitations under the License.
--->
 <html>
-<head>
-  <meta charset="utf-8">
-  <title>Mocha Tests</title>
+  <head>
+    <meta charset="utf-8" />
+    <title>Mocha Tests</title>
+  </head>
+  <body>
+    <div id="mocha"></div>
 
-</head>
-<body>
-  <div id="mocha"></div>
-  <!-- Mocha and Sinon stopped supporting older IE: -->
-  <!--[if IE 9]>
-    <link href="https://cdnjs.cloudflare.com/ajax/libs/mocha/4.1.0/mocha.min.css" rel="stylesheet">
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/mocha/4.1.0/mocha.min.js"></script>
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/sinon.js/5.1.0/sinon.min.js"></script>
-  <![endif]-->
-  <!--[if !IE]><!-->
-    <link href="https://cdnjs.cloudflare.com/ajax/libs/mocha/5.2.0/mocha.min.css" rel="stylesheet">
+    <link
+      href="https://cdnjs.cloudflare.com/ajax/libs/mocha/5.2.0/mocha.min.css"
+      rel="stylesheet"
+    />
     <script src="https://cdnjs.cloudflare.com/ajax/libs/mocha/5.2.0/mocha.min.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/sinon.js/6.1.5/sinon.min.js"></script>
-  <!--<![endif]-->
-
-  <!-- Chai works fine in all browsers -->
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/chai/4.1.2/chai.min.js"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/chai/4.1.2/chai.min.js"></script>
 
-  <script>
-  mocha.ui('bdd');
-  mocha.timeout(60000);
+    <script>
+      mocha.ui('bdd')
+      mocha.timeout(60000)
 
-  // Expose chai's assert globally.
-  self.assert = chai.assert;
-  </script>
+      // Expose chai's assert globally.
+      self.assert = chai.assert
+    </script>
 
-  <script type="module" src="idle-callback-polyfills-test.mjs"></script>
-  <script type="module" src="defineIdleProperties-test.mjs"></script>
-  <script type="module" src="defineIdleProperty-test.mjs"></script>
-  <script type="module" src="IdleQueue-test.mjs"></script>
-  <script type="module" src="IdleValue-test.mjs"></script>
+    <script type="module" src="idle-callback-polyfills-test.mjs"></script>
+    <script type="module" src="defineIdleProperties-test.mjs"></script>
+    <script type="module" src="defineIdleProperty-test.mjs"></script>
+    <script type="module" src="IdleQueue-test.mjs"></script>
+    <script type="module" src="IdleValue-test.mjs"></script>
 
-  <!-- The bundled scripts for nomodule browsers -->
-  <script nomodule src="index.js"></script>
+    <!-- The bundled scripts for nomodule browsers -->
+    <script nomodule src="index.js"></script>
 
-  <script>
-  window.onload = function() {
-    var runner = mocha.run();
-    var failedTests = [];
+    <script>
+      window.onload = function () {
+        var runner = mocha.run()
+        var failedTests = []
 
-    runner.on('end', function(){
-      window.mochaResults = runner.stats;
-      window.mochaResults.reports = failedTests;
-    });
+        runner.on('end', function () {
+          window.mochaResults = runner.stats
+          window.mochaResults.reports = failedTests
+        })
 
-    runner.on('fail', function(test, err){
-      var flattenTitles = function(test){
-        var titles = [];
-        while (test.parent.title){
-          titles.push(test.parent.title);
-          test = test.parent;
-        }
-        return titles.reverse();
-      };
+        runner.on('fail', function (test, err) {
+          var flattenTitles = function (test) {
+            var titles = []
+            while (test.parent.title) {
+              titles.push(test.parent.title)
+              test = test.parent
+            }
+            return titles.reverse()
+          }
 
-      failedTests.push({
-        name: test.title,
-        result: false,
-        message: err.message,
-        stack: err.stack,
-        titles: flattenTitles(test)
-      });
-    });
-  };
-  </script>
-</body>
+          failedTests.push({
+            name: test.title,
+            result: false,
+            message: err.message,
+            stack: err.stack,
+            titles: flattenTitles(test)
+          })
+        })
+      }
+    </script>
+  </body>
 </html>
diff --git a/test/index.test.ts b/test/index.test.ts
deleted file mode 100644
index e69de29..0000000
