diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index a9a06741..6fad6c68 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -28,11 +28,15 @@ jobs:
           - 8
           - 10
           - 12
+          - 14
         exclude:
-          # Temporarily excludes node 12 on windows
-          # Wait for https://github.com/nodejs/node/issues/34514
+          # Excludes nodejs v12 and v14 on windows
+          # https://github.com/nodejs/node/issues/34514
+          # It was patched in nodejs v15+.
           - os: windows-latest
             node: 12
+          - os: windows-latest
+            node: 14
 
     steps:
       - name: Clone repository
diff --git a/lib/bypass.js b/lib/bypass.js
index 22163f08..4d6b29ce 100755
--- a/lib/bypass.js
+++ b/lib/bypass.js
@@ -19,8 +19,17 @@ exports = module.exports = function bypass(fn) {
   try {
     result = fn();
   } finally {
-    if (result && typeof result.finally === 'function') {
-      result.finally(enable);
+    if (result && typeof result.then === 'function') {
+      result.then(
+        r => {
+          enable();
+          return r;
+        },
+        err => {
+          enable();
+          throw err;
+        }
+      );
     } else {
       enable();
     }
diff --git a/package-lock.json b/package-lock.json
index 3ea640bd..6ae33b36 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,8 +1,2722 @@
 {
   "name": "mock-fs",
   "version": "4.13.0",
-  "lockfileVersion": 1,
+  "lockfileVersion": 2,
   "requires": true,
+  "packages": {
+    "": {
+      "version": "4.13.0",
+      "license": "MIT",
+      "devDependencies": {
+        "chai": "^4.2.0",
+        "eslint": "^5.16.0",
+        "eslint-config-tschaub": "^13.1.0",
+        "mocha": "^6.1.4",
+        "rimraf": "^2.6.3",
+        "semver": "^6.0.0"
+      }
+    },
+    "node_modules/@babel/code-frame": {
+      "version": "7.5.5",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.5.5.tgz",
+      "integrity": "sha512-27d4lZoomVyo51VegxI20xZPuSHusqbQag/ztrBC7wegWoQ1nLREPVSKSW8byhTlzTKyNE4ifaTA6lCp7JjpFw==",
+      "dev": true,
+      "dependencies": {
+        "@babel/highlight": "^7.0.0"
+      }
+    },
+    "node_modules/@babel/highlight": {
+      "version": "7.5.0",
+      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.5.0.tgz",
+      "integrity": "sha512-7dV4eu9gBxoM0dAnj/BCFDW9LFU0zvTrkq0ugM7pnHEgguOEeOz1so2ZghEdzviYzQEED0r4EAgpsBChKy1TRQ==",
+      "dev": true,
+      "dependencies": {
+        "chalk": "^2.0.0",
+        "esutils": "^2.0.2",
+        "js-tokens": "^4.0.0"
+      }
+    },
+    "node_modules/acorn": {
+      "version": "6.4.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
+      "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA==",
+      "dev": true,
+      "bin": {
+        "acorn": "bin/acorn"
+      },
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    },
+    "node_modules/acorn-jsx": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.1.0.tgz",
+      "integrity": "sha512-tMUqwBWfLFbJbizRmEcWSLw6HnFzfdJs2sOJEOwwtVPMoH/0Ay+E703oZz78VSXZiiDcZrQ5XKjPIUQixhmgVw==",
+      "dev": true
+    },
+    "node_modules/ajv": {
+      "version": "6.10.2",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.2.tgz",
+      "integrity": "sha512-TXtUUEYHuaTEbLZWIKUr5pmBuhDLy+8KYtPYdcV8qC+pOZL+NKqYwvWSRrVXHn+ZmRRAu8vJTAznH7Oag6RVRw==",
+      "dev": true,
+      "dependencies": {
+        "fast-deep-equal": "^2.0.1",
+        "fast-json-stable-stringify": "^2.0.0",
+        "json-schema-traverse": "^0.4.1",
+        "uri-js": "^4.2.2"
+      }
+    },
+    "node_modules/ansi-colors": {
+      "version": "3.2.3",
+      "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-3.2.3.tgz",
+      "integrity": "sha512-LEHHyuhlPY3TmuUYMh2oz89lTShfvgbmzaBcxve9t/9Wuy7Dwf4yoAKcND7KFT1HAQfqZ12qtc+DUrBMeKF9nw==",
+      "dev": true,
+      "engines": {
+        "node": ">=6"
+      }
+    },
+    "node_modules/ansi-escapes": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.2.0.tgz",
+      "integrity": "sha512-cBhpre4ma+U0T1oM5fXg7Dy1Jw7zzwv7lt/GoCpr+hDQJoYnKVPLL4dCvSEFMmQurOQvSrwT7SL/DAlhBI97RQ==",
+      "dev": true,
+      "engines": {
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+      }
+    },
+    "node_modules/ansi-regex": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-3.0.0.tgz",
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+      "dev": true,
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+      },
+      "engines": {
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+      }
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+        "concat-map": "0.0.1"
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+    }
+  },
   "dependencies": {
     "@babel/code-frame": {
       "version": "7.5.5",
diff --git a/test/lib/bypass.spec.js b/test/lib/bypass.spec.js
index 177cad66..5040eede 100644
--- a/test/lib/bypass.spec.js
+++ b/test/lib/bypass.spec.js
@@ -92,7 +92,7 @@ describe('mock.bypass()', () => {
 
     promise
       .then(() => {
-        done(new Error('expected rejection'));
+        done(new Error('should not succeed'));
       })
       .catch(err => {
         assert.equal(err, error);
diff --git a/test/lib/fs.access.spec.js b/test/lib/fs.access.spec.js
index 9152e2ea..882de89c 100644
--- a/test/lib/fs.access.spec.js
+++ b/test/lib/fs.access.spec.js
@@ -98,8 +98,7 @@ if (fs.access && fs.accessSync && process.getuid && process.getgid) {
     withPromise.it('promise generates EACCES for R_OK and 000', function(done) {
       fs.promises.access('path/to/000', fs.R_OK).then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
@@ -120,8 +119,7 @@ if (fs.access && fs.accessSync && process.getuid && process.getgid) {
     withPromise.it('promise generates EACCES for W_OK and 000', function(done) {
       fs.promises.access('path/to/000', fs.W_OK).then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
@@ -142,8 +140,7 @@ if (fs.access && fs.accessSync && process.getuid && process.getgid) {
     withPromise.it('promise generates EACCES for X_OK and 000', function(done) {
       fs.promises.access('path/to/000', fs.X_OK).then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
@@ -188,8 +185,7 @@ if (fs.access && fs.accessSync && process.getuid && process.getgid) {
     withPromise.it('promise generates EACCES for R_OK and 111', function(done) {
       fs.promises.access('path/to/111', fs.R_OK).then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
@@ -210,8 +206,7 @@ if (fs.access && fs.accessSync && process.getuid && process.getgid) {
     withPromise.it('promise generates EACCES for W_OK and 111', function(done) {
       fs.promises.access('path/to/111', fs.W_OK).then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
@@ -256,8 +251,7 @@ if (fs.access && fs.accessSync && process.getuid && process.getgid) {
     withPromise.it('promise generates EACCES for R_OK and 222', function(done) {
       fs.promises.access('path/to/write/only', fs.R_OK).then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
@@ -278,8 +272,7 @@ if (fs.access && fs.accessSync && process.getuid && process.getgid) {
     withPromise.it('promise generates EACCES for X_OK and 222', function(done) {
       fs.promises.access('path/to/write/only', fs.X_OK).then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
@@ -340,8 +333,7 @@ if (fs.access && fs.accessSync && process.getuid && process.getgid) {
     withPromise.it('promise generates EACCES for R_OK and 333', function(done) {
       fs.promises.access('path/to/333', fs.R_OK).then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
@@ -386,8 +378,7 @@ if (fs.access && fs.accessSync && process.getuid && process.getgid) {
     withPromise.it('promise generates EACCES for W_OK and 444', function(done) {
       fs.promises.access('path/to/444', fs.W_OK).then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
@@ -408,8 +399,7 @@ if (fs.access && fs.accessSync && process.getuid && process.getgid) {
     withPromise.it('promise generates EACCES for X_OK and 444', function(done) {
       fs.promises.access('path/to/444', fs.X_OK).then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
@@ -470,8 +460,7 @@ if (fs.access && fs.accessSync && process.getuid && process.getgid) {
     withPromise.it('promise generates EACCES for W_OK and 555', function(done) {
       fs.promises.access('path/to/555', fs.W_OK).then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
@@ -532,8 +521,7 @@ if (fs.access && fs.accessSync && process.getuid && process.getgid) {
     withPromise.it('promise generates EACCES for X_OK and 666', function(done) {
       fs.promises.access('path/to/666', fs.X_OK).then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
@@ -630,8 +618,7 @@ if (fs.access && fs.accessSync && process.getuid && process.getgid) {
       function(done) {
         fs.promises.access('unreadable/readable-child').then(
           function() {
-            assert.fail('should not succeed.');
-            done();
+            done(new Error('should not succeed.'));
           },
           function(err) {
             assert.instanceOf(err, Error);
diff --git a/test/lib/fs.appendFile.spec.js b/test/lib/fs.appendFile.spec.js
index dc9724fa..d7efccbe 100644
--- a/test/lib/fs.appendFile.spec.js
+++ b/test/lib/fs.appendFile.spec.js
@@ -97,8 +97,7 @@ describe('fs.appendFile(filename, data, [options], callback)', function() {
   withPromise.it('promise fails if directory does not exist', function(done) {
     fs.promises.appendFile('foo/bar', 'baz').then(
       function() {
-        assert.fail('should not succeed.');
-        done();
+        done(new Error('should not succeed.'));
       },
       function(err) {
         assert.instanceOf(err, Error);
diff --git a/test/lib/fs.chmod-fchmod.spec.js b/test/lib/fs.chmod-fchmod.spec.js
index 0af239b0..1c639c8d 100644
--- a/test/lib/fs.chmod-fchmod.spec.js
+++ b/test/lib/fs.chmod-fchmod.spec.js
@@ -56,8 +56,7 @@ describe('fs.chmod(path, mode, callback)', function() {
   withPromise.it('promise fails if file does not exist', function(done) {
     fs.promises.chmod('bogus.txt', parseInt('0664', 8)).then(
       function() {
-        assert.fail('should not succeed.');
-        done();
+        done(new Error('should not succeed.'));
       },
       function(err) {
         assert.instanceOf(err, Error);
diff --git a/test/lib/fs.chown-fchown.spec.js b/test/lib/fs.chown-fchown.spec.js
index 755f4fcb..7bb68855 100644
--- a/test/lib/fs.chown-fchown.spec.js
+++ b/test/lib/fs.chown-fchown.spec.js
@@ -38,8 +38,7 @@ describe('fs.chown(path, uid, gid, callback)', function() {
   withPromise.it('promise fails if file does not exist', function(done) {
     fs.promises.chown('bogus.txt', 42, 43).then(
       function() {
-        assert.fail('should not succeed.');
-        done();
+        done(new Error('should not succeed.'));
       },
       function(err) {
         assert.instanceOf(err, Error);
diff --git a/test/lib/fs.copyFile.spec.js b/test/lib/fs.copyFile.spec.js
index 575a3390..fec6aaa9 100644
--- a/test/lib/fs.copyFile.spec.js
+++ b/test/lib/fs.copyFile.spec.js
@@ -105,8 +105,7 @@ if (fs.copyFile && fs.copyFileSync) {
         )
         .then(
           function() {
-            assert.fail('should not succeed.');
-            done();
+            done(new Error('should not succeed.'));
           },
           function(err) {
             assert.instanceOf(err, Error);
@@ -127,8 +126,7 @@ if (fs.copyFile && fs.copyFileSync) {
     withPromise.it('promise fails if src does not exist', function(done) {
       fs.promises.copyFile('path/to/bogus.txt', 'empty/dest.txt').then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
@@ -149,8 +147,7 @@ if (fs.copyFile && fs.copyFileSync) {
     withPromise.it('promise fails if dest path does not exist', function(done) {
       fs.promises.copyFile('path/to/src.txt', 'path/nope/dest.txt').then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
@@ -171,8 +168,7 @@ if (fs.copyFile && fs.copyFileSync) {
     withPromise.it('promise fails if dest is a directory', function(done) {
       fs.promises.copyFile('path/to/src.txt', 'empty').then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
diff --git a/test/lib/fs.link-symlink.spec.js b/test/lib/fs.link-symlink.spec.js
index 7ea607e8..7580c8f7 100644
--- a/test/lib/fs.link-symlink.spec.js
+++ b/test/lib/fs.link-symlink.spec.js
@@ -121,8 +121,7 @@ describe('fs.link(srcpath, dstpath, callback)', function() {
   withPromise.it('promise fails if original is a directory', function(done) {
     fs.promises.link('dir', 'link').then(
       function() {
-        assert.fail('should not succeed.');
-        done();
+        done(new Error('should not succeed.'));
       },
       function(err) {
         assert.instanceOf(err, Error);
diff --git a/test/lib/fs.lstat.spec.js b/test/lib/fs.lstat.spec.js
index 02a6088f..98b68a8d 100644
--- a/test/lib/fs.lstat.spec.js
+++ b/test/lib/fs.lstat.spec.js
@@ -87,8 +87,7 @@ describe('fs.lstat(path, callback)', function() {
   withPromise.it('promise fails on file not exist', function(done) {
     fs.promises.lstat('bogus').then(
       function() {
-        assert.fail('should not succeed.');
-        done();
+        done(new Error('should not succeed.'));
       },
       function(err) {
         assert.instanceOf(err, Error);
diff --git a/test/lib/fs.mkdir.spec.js b/test/lib/fs.mkdir.spec.js
index 17433c04..33fb247e 100644
--- a/test/lib/fs.mkdir.spec.js
+++ b/test/lib/fs.mkdir.spec.js
@@ -158,8 +158,7 @@ describe('fs.mkdir(path, [mode], callback)', function() {
   withPromise.it('promise fails if parent does not exist', function(done) {
     fs.promises.mkdir('parent/bogus/dir').then(
       function() {
-        assert.fail('should not succeed.');
-        done();
+        done(new Error('should not succeed.'));
       },
       function(err) {
         assert.instanceOf(err, Error);
@@ -184,8 +183,7 @@ describe('fs.mkdir(path, [mode], callback)', function() {
     function(done) {
       fs.promises.mkdir('file.txt/bogus/dir', {recursive: true}).then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
@@ -219,8 +217,7 @@ describe('fs.mkdir(path, [mode], callback)', function() {
         })
         .then(
           function() {
-            assert.fail('should not succeed.');
-            done();
+            done(new Error('should not succeed.'));
           },
           function(err) {
             assert.instanceOf(err, Error);
@@ -241,8 +238,7 @@ describe('fs.mkdir(path, [mode], callback)', function() {
   withPromise.it('promise fails if directory already exists', function(done) {
     fs.promises.mkdir('parent').then(
       function() {
-        assert.fail('should not succeed.');
-        done();
+        done(new Error('should not succeed.'));
       },
       function(err) {
         assert.instanceOf(err, Error);
@@ -263,8 +259,7 @@ describe('fs.mkdir(path, [mode], callback)', function() {
   withPromise.it('promise fails if file already exists', function(done) {
     fs.promises.mkdir('file.txt').then(
       function() {
-        assert.fail('should not succeed.');
-        done();
+        done(new Error('should not succeed.'));
       },
       function(err) {
         assert.instanceOf(err, Error);
@@ -290,8 +285,7 @@ describe('fs.mkdir(path, [mode], callback)', function() {
     function(done) {
       fs.promises.mkdir('parent/file.md', {recursive: true}).then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
@@ -331,8 +325,7 @@ describe('fs.mkdir(path, [mode], callback)', function() {
     withPromise.it('promise fails if parent is not writeable', function(done) {
       fs.promises.mkdir('unwriteable/child').then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
diff --git a/test/lib/fs.mkdtemp.spec.js b/test/lib/fs.mkdtemp.spec.js
index 9a1ef124..60638bde 100644
--- a/test/lib/fs.mkdtemp.spec.js
+++ b/test/lib/fs.mkdtemp.spec.js
@@ -186,8 +186,7 @@ if (fs.mkdtemp) {
     withPromise.it('promise fails if parent does not exist', function(done) {
       fs.promises.mkdtemp('unknown/child').then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
@@ -213,8 +212,7 @@ if (fs.mkdtemp) {
     withPromise.it('promise fails if parent is a file', function(done) {
       fs.promises.mkdtemp('file/child').then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
@@ -243,8 +241,7 @@ if (fs.mkdtemp) {
       ) {
         fs.promises.mkdtemp('unwriteable/child').then(
           function() {
-            assert.fail('should not succeed.');
-            done();
+            done(new Error('should not succeed.'));
           },
           function(err) {
             assert.instanceOf(err, Error);
diff --git a/test/lib/fs.open-close.spec.js b/test/lib/fs.open-close.spec.js
index bb889cd9..ee31bb7d 100644
--- a/test/lib/fs.open-close.spec.js
+++ b/test/lib/fs.open-close.spec.js
@@ -6,6 +6,7 @@ const mock = require('../../lib/index');
 
 const assert = helper.assert;
 const withPromise = helper.withPromise;
+const inVersion = helper.inVersion;
 
 describe('fs.open(path, flags, [mode], callback)', function() {
   beforeEach(function() {
@@ -64,8 +65,7 @@ describe('fs.open(path, flags, [mode], callback)', function() {
   withPromise.it('promise fails if file does not exist (r)', function(done) {
     fs.promises.open('bogus.txt', 'r').then(
       function() {
-        assert.fail('should not succeed.');
-        done();
+        done(new Error('should not succeed.'));
       },
       function(err) {
         assert.instanceOf(err, Error);
@@ -128,8 +128,7 @@ describe('fs.open(path, flags, [mode], callback)', function() {
   withPromise.it('promise fails if file exists (wx)', function(done) {
     fs.promises.open('path/to/file.txt', 'wx', parseInt('0666', 8)).then(
       function() {
-        assert.fail('should not succeed.');
-        done();
+        done(new Error('should not succeed.'));
       },
       function(err) {
         assert.instanceOf(err, Error);
@@ -222,26 +221,29 @@ describe('fs.close(fd, callback)', function() {
     });
   });
 
-  withPromise.it('promise fails for closed file descriptors', function(done) {
-    fs.promises
-      .open('dir/file.txt', 'w')
-      .then(function(fd) {
-        return fd.close().then(function() {
-          return fd.close();
-        });
-      })
-      .then(
-        function() {
-          assert.fail('should not succeed.');
-          done();
-        },
-        function(err) {
-          assert.instanceOf(err, Error);
-          assert.equal(err.code, 'EBADF');
-          done();
-        }
-      );
-  });
+  inVersion('>=10.0.0 <14.0.0').it(
+    'promise fails for closed file descriptors',
+    function(done) {
+      fs.promises
+        .open('dir/file.txt', 'w')
+        .then(function(fd) {
+          return fd.close().then(function() {
+            // in Nodejs v14+, closing on closed file descriptor is silently ignored.
+            return fd.close();
+          });
+        })
+        .then(
+          function() {
+            done(new Error('should not succeed.'));
+          },
+          function(err) {
+            assert.instanceOf(err, Error);
+            assert.equal(err.code, 'EBADF');
+            done();
+          }
+        );
+    }
+  );
 });
 
 describe('fs.closeSync(fd)', function() {
diff --git a/test/lib/fs.read.spec.js b/test/lib/fs.read.spec.js
index 21a32f5a..24f3ecdc 100644
--- a/test/lib/fs.read.spec.js
+++ b/test/lib/fs.read.spec.js
@@ -247,8 +247,7 @@ describe('fs.read(fd, buffer, offset, length, position, callback)', function() {
       })
       .then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
@@ -275,8 +274,7 @@ describe('fs.read(fd, buffer, offset, length, position, callback)', function() {
       })
       .then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
diff --git a/test/lib/fs.readFile.spec.js b/test/lib/fs.readFile.spec.js
index a7935f4b..9ac7a3ab 100644
--- a/test/lib/fs.readFile.spec.js
+++ b/test/lib/fs.readFile.spec.js
@@ -50,8 +50,7 @@ describe('fs.readFile(filename, [options], callback)', function() {
   withPromise.it('promise fails for directory', function(done) {
     fs.promises.readFile('path/to').then(
       function() {
-        assert.fail('should not succeed.');
-        done();
+        done(new Error('should not succeed.'));
       },
       function(err) {
         assert.instanceOf(err, Error);
@@ -73,8 +72,7 @@ describe('fs.readFile(filename, [options], callback)', function() {
   withPromise.it('promise fails for bad path', function(done) {
     fs.promises.readFile('path/to/bogus').then(
       function() {
-        assert.fail('should not succeed.');
-        done();
+        done(new Error('should not succeed.'));
       },
       function(err) {
         assert.instanceOf(err, Error);
diff --git a/test/lib/fs.readdir.spec.js b/test/lib/fs.readdir.spec.js
index 5b531c30..6a314f4b 100644
--- a/test/lib/fs.readdir.spec.js
+++ b/test/lib/fs.readdir.spec.js
@@ -90,8 +90,7 @@ describe('fs.readdir(path, callback)', function() {
   withPromise.it('promise calls with an error for bogus path', function(done) {
     fs.promises.readdir('bogus').then(
       function() {
-        assert.fail('should not succeed.');
-        done();
+        done(new Error('should not succeed.'));
       },
       function(err) {
         assert.instanceOf(err, Error);
@@ -114,8 +113,7 @@ describe('fs.readdir(path, callback)', function() {
   ) {
     fs.promises.readdir('denied').then(
       function() {
-        assert.fail('should not succeed.');
-        done();
+        done(new Error('should not succeed.'));
       },
       function(err) {
         assert.instanceOf(err, Error);
diff --git a/test/lib/fs.readlink.spec.js b/test/lib/fs.readlink.spec.js
index 4b67e6d7..a08609f6 100644
--- a/test/lib/fs.readlink.spec.js
+++ b/test/lib/fs.readlink.spec.js
@@ -53,8 +53,7 @@ describe('fs.readlink(path, callback)', function() {
   withPromise.it('promise fails for regular files', function(done) {
     fs.promises.readlink('file.txt').then(
       function() {
-        assert.fail('should not succeed.');
-        done();
+        done(new Error('should not succeed.'));
       },
       function(err) {
         assert.instanceOf(err, Error);
diff --git a/test/lib/fs.realpath.spec.js b/test/lib/fs.realpath.spec.js
index 43bb4de1..b9079fb5 100644
--- a/test/lib/fs.realpath.spec.js
+++ b/test/lib/fs.realpath.spec.js
@@ -65,8 +65,7 @@ describe('fs.realpath(path, [cache], callback)', function() {
   withPromise.it('promise fails on file not exist', function(done) {
     fs.promises.realpath('bogus').then(
       function() {
-        assert.fail('should not succeed.');
-        done();
+        done(new Error('should not succeed.'));
       },
       function(err) {
         assert.instanceOf(err, Error);
diff --git a/test/lib/fs.rename.spec.js b/test/lib/fs.rename.spec.js
index 4b830e32..7dc40b82 100644
--- a/test/lib/fs.rename.spec.js
+++ b/test/lib/fs.rename.spec.js
@@ -90,8 +90,7 @@ describe('fs.rename(oldPath, newPath, callback)', function() {
     function(done) {
       fs.promises.rename('bogus', 'empty').then(
         function() {
-          assert.fail('Should not succeed.');
-          done();
+          done(new Error('Should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
@@ -149,8 +148,7 @@ describe('fs.rename(oldPath, newPath, callback)', function() {
     function(done) {
       fs.promises.rename('path', 'nested').then(
         function() {
-          assert.fail('Should not succeed.');
-          done();
+          done(new Error('Should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
diff --git a/test/lib/fs.rmdir.spec.js b/test/lib/fs.rmdir.spec.js
index 5405fc67..55ad0239 100644
--- a/test/lib/fs.rmdir.spec.js
+++ b/test/lib/fs.rmdir.spec.js
@@ -84,8 +84,7 @@ describe('fs.rmdir(path, callback)', function() {
   withPromise.it('promise fails if not empty', function(done) {
     fs.promises.rmdir('path/to').then(
       function() {
-        assert.fail('should not succeed.');
-        done();
+        done(new Error('should not succeed.'));
       },
       function(err) {
         assert.instanceOf(err, Error);
@@ -106,8 +105,7 @@ describe('fs.rmdir(path, callback)', function() {
   withPromise.it('promise fails if file', function(done) {
     fs.promises.rmdir('file.txt').then(
       function() {
-        assert.fail('should not succeed.');
-        done();
+        done(new Error('should not succeed.'));
       },
       function(err) {
         assert.instanceOf(err, Error);
@@ -179,8 +177,7 @@ describe('fs.rmdir(path, callback)', function() {
     withPromise.it('promise fails if parent is not writeable', function(done) {
       fs.promises.rmdir('unwriteable/child').then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
diff --git a/test/lib/fs.stat-fstat.spec.js b/test/lib/fs.stat-fstat.spec.js
index 38b5de28..7d6b27d9 100644
--- a/test/lib/fs.stat-fstat.spec.js
+++ b/test/lib/fs.stat-fstat.spec.js
@@ -306,8 +306,7 @@ describe('fs.fstat(fd, callback)', function() {
       })
       .then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
diff --git a/test/lib/fs.unlink.spec.js b/test/lib/fs.unlink.spec.js
index 60c887aa..63e9b5df 100644
--- a/test/lib/fs.unlink.spec.js
+++ b/test/lib/fs.unlink.spec.js
@@ -83,8 +83,7 @@ describe('fs.unlink(path, callback)', function() {
   withPromise.it('promise fails for a directory', function(done) {
     fs.promises.unlink('dir').then(
       function() {
-        assert.fail('should not succeed.');
-        done();
+        done(new Error('should not succeed.'));
       },
       function(err) {
         assert.instanceOf(err, Error);
diff --git a/test/lib/fs.utimes-futimes.spec.js b/test/lib/fs.utimes-futimes.spec.js
index efff3f39..129a4052 100644
--- a/test/lib/fs.utimes-futimes.spec.js
+++ b/test/lib/fs.utimes-futimes.spec.js
@@ -85,8 +85,7 @@ describe('fs.utimes(path, atime, mtime, callback)', function() {
   withPromise.it('promise fails for a bogus path', function(done) {
     fs.promises.utimes('bogus.txt', new Date(100), new Date(200)).then(
       function() {
-        assert.fail('should not succeed.');
-        done();
+        done(new Error('should not succeed.'));
       },
       function(err) {
         assert.instanceOf(err, Error);
diff --git a/test/lib/fs.write.spec.js b/test/lib/fs.write.spec.js
index af09ee16..6dadbfae 100644
--- a/test/lib/fs.write.spec.js
+++ b/test/lib/fs.write.spec.js
@@ -259,8 +259,7 @@ describe('fs.write(fd, buffer, offset, length, position, callback)', function()
       })
       .then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
@@ -525,8 +524,7 @@ describe('fs.write(fd, data[, position[, encoding]], callback)', function() {
       })
       .then(
         function() {
-          assert.fail('should not succeed.');
-          done();
+          done(new Error('should not succeed.'));
         },
         function(err) {
           assert.instanceOf(err, Error);
diff --git a/test/lib/fs.writeFile.spec.js b/test/lib/fs.writeFile.spec.js
index 54af4ba7..7b6eaf18 100644
--- a/test/lib/fs.writeFile.spec.js
+++ b/test/lib/fs.writeFile.spec.js
@@ -84,8 +84,7 @@ describe('fs.writeFile(filename, data, [options], callback)', function() {
   withPromise.it('promise fails if directory does not exist', function(done) {
     fs.promises.writeFile('foo/bar', 'baz').then(
       function() {
-        assert.fail('should not succeed.');
-        done();
+        done(new Error('should not succeed.'));
       },
       function(err) {
         assert.instanceOf(err, Error);