diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b9487c10..20efe66c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,21 +1,36 @@
 name: ci
 
 on:
-- pull_request
-- push
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - '*.md'
+  pull_request:
 
 permissions:
   contents: read
-
 jobs:
-  test:
-    permissions:
-      checks: write  # for coverallsapp/github-action to create new checks
-      contents: read  # for actions/checkout to fetch code
+  lint:
+    name: Lint
     runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 'lts/*'
+
+      - name: Install dependencies
+        run: npm install --ignore-scripts --include=dev
+
+      - name: Run lint
+        run: npm run lint
+  test:
     strategy:
       fail-fast: false
       matrix:
+        os: [ubuntu-latest, windows-latest]
         name:
         - Node.js 10.x
         - Node.js 11.x
@@ -35,7 +50,7 @@ jobs:
 
         include:
         - name: Node.js 10.x
-          node-version: "10.24"
+          node-version: "10.16.0"
           npm-i: mocha@8.4.0
           
         - name: Node.js 11.x
@@ -43,7 +58,7 @@ jobs:
           npm-i: mocha@8.4.0
           
         - name: Node.js 12.x
-          node-version: "12.22"
+          node-version: "12.0.0"
           npm-i: mocha@9.2.2
           
         - name: Node.js 13.x
@@ -51,27 +66,27 @@ jobs:
           npm-i: mocha@9.2.2
           
         - name: Node.js 14.x
-          node-version: "14.21"
+          node-version: "14.0.0"
           npm-i: mocha@9.2.2
           
         - name: Node.js 15.x
-          node-version: "15.14"
+          node-version: "15.0.0"
           npm-i: mocha@9.2.2
           
         - name: Node.js 16.x
-          node-version: "16.20"
+          node-version: "16.0.0"
           
         - name: Node.js 17.x
-          node-version: "17.9"
+          node-version: "17.0.0"
           
         - name: Node.js 18.x
-          node-version: "18.18"
+          node-version: "18.0.0"
           
         - name: Node.js 19.x
-          node-version: "19.9"
+          node-version: "19.0.0"
           
         - name: Node.js 20.x
-          node-version: "20.9"
+          node-version: "20.0.0"
           
         - name: Node.js 21.x
           node-version: "21"
@@ -85,26 +100,16 @@ jobs:
         - name: Node.js 24.x
           node-version: "24"
 
+    runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-
-    - name: Install Node.js ${{ matrix.node-version }}
-      shell: bash -eo pipefail -l {0}
-      run: |
-        nvm install --default ${{ matrix.node-version }}
-        if [[ "${{ matrix.node-version }}" == 0.* && "$(cut -d. -f2 <<< "${{ matrix.node-version }}")" -lt 10 ]]; then
-          nvm install --alias=npm 0.10
-          nvm use ${{ matrix.node-version }}
-          if [[ "$(npm -v)" == 1.1.* ]]; then
-            nvm exec npm npm install -g npm@1.1
-            ln -fs "$(which npm)" "$(dirname "$(nvm which npm)")/npm"
-          else
-            sed -i '1s;^.*$;'"$(printf '#!%q' "$(nvm which npm)")"';' "$(readlink -f "$(which npm)")"
-          fi
-          npm config set strict-ssl false
-        fi
-        dirname "$(nvm which ${{ matrix.node-version }})" >> "$GITHUB_PATH"
+    - uses: actions/checkout@v4
+      with:
+        persist-credentials: false
 
+    - name: Setup Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v4
+      with:
+        node-version: ${{ matrix.node-version }}
     - name: Remove npm module(s) ${{ matrix.npm-rm }}
       run: npm rm --silent --save-dev ${{ matrix.npm-rm }}
       if: matrix.npm-rm != ''
@@ -116,43 +121,41 @@ jobs:
     - name: Install Node.js dependencies
       run: npm install
 
-    - name: List environment
-      id: list_env
-      shell: bash
-      run: |
-        echo "node@$(node -v)"
-        echo "npm@$(npm -v)"
-        npm -s ls ||:
-        (npm -s ls --depth=0 ||:) | awk -F'[ @]' 'NR>1 && $2 { print $2 "=" $3 }' >> "$GITHUB_OUTPUT"
-
-    - name: Lint code
-      run: npm run lint
-
     - name: Run tests
       shell: bash
-      run: |
-        if npm -ps ls nyc | grep -q nyc; then
-          npm run test-ci
-        else
-          npm test
-        fi
+      run: npm run test-ci
 
-    - name: Collect code coverage
-      uses: coverallsapp/github-action@09b709cf6a16e30b0808ba050c7a6e8a5ef13f8d # master
-      if: steps.list_env.outputs.nyc != ''
+    - name: Upload code coverage
+      uses: actions/upload-artifact@v4
       with:
-        github-token: ${{ secrets.GITHUB_TOKEN }}
-        flag-name: run-${{ matrix.test_number }}
-        parallel: true
+        name: coverage-node-${{ matrix.node-version }}-${{ matrix.os }}
+        path: ./coverage/lcov.info
+        retention-days: 1
 
   coverage:
-    permissions:
-      checks: write  # for coverallsapp/github-action to create new checks
-    needs: test
-    runs-on: ubuntu-latest
-    steps:
-    - name: Upload code coverage
-      uses: coverallsapp/github-action@09b709cf6a16e30b0808ba050c7a6e8a5ef13f8d # master
-      with:
-        github-token: ${{ secrets.GITHUB_TOKEN }}
-        parallel-finished: true
+      needs: test
+      runs-on: ubuntu-latest
+      permissions:
+        contents: read
+        checks: write
+      steps:
+        - uses: actions/checkout@v4
+  
+        - name: Install lcov
+          shell: bash
+          run: sudo apt-get -y install lcov
+  
+        - name: Collect coverage reports
+          uses: actions/download-artifact@v4
+          with:
+            path: ./coverage
+            pattern: coverage-node-*
+  
+        - name: Merge coverage reports
+          shell: bash
+          run: find ./coverage -name lcov.info -exec printf '-a %q\n' {} \; | xargs lcov -o ./lcov.info
+  
+        - name: Upload coverage report
+          uses: coverallsapp/github-action@v2
+          with:
+            file: ./lcov.info
diff --git a/test/_util.js b/test/_util.js
index a6782ad8..d892f427 100644
--- a/test/_util.js
+++ b/test/_util.js
@@ -2,14 +2,26 @@ var fs = require('fs')
 var path = require('path')
 var stream = require('stream')
 
+exports.filePath = function filePath (name) {
+  return path.join(__dirname, 'files', name)
+}
+
 exports.file = function file (name) {
-  return fs.createReadStream(path.join(__dirname, 'files', name))
+  return fs.createReadStream(this.filePath(name))
 }
 
 exports.fileSize = function fileSize (path) {
   return fs.statSync(path).size
 }
 
+exports.fileSizeByName = function fileSizeByName (name) {
+  return this.fileSize(this.filePath(name))
+}
+
+exports.readDir = function readDir (dirPath) {
+  return fs.readdirSync(dirPath)
+}
+
 exports.submitForm = function submitForm (multer, form, cb) {
   form.getLength(function (err, length) {
     if (err) return cb(err)
diff --git a/test/disk-storage.js b/test/disk-storage.js
index bc923ab5..23454bf8 100644
--- a/test/disk-storage.js
+++ b/test/disk-storage.js
@@ -3,7 +3,6 @@
 var assert = require('assert')
 var deepEqual = require('deep-equal')
 
-var fs = require('fs')
 var path = require('path')
 var util = require('./_util')
 var multer = require('../')
@@ -11,6 +10,14 @@ var temp = require('fs-temp')
 var rimraf = require('rimraf')
 var FormData = require('form-data')
 
+function assertFileProperties (file, expectedFieldname, expectedOriginalname) {
+  const expectedSize = util.fileSizeByName(expectedOriginalname)
+  assert.strictEqual(file.fieldname, expectedFieldname)
+  assert.strictEqual(file.originalname, expectedOriginalname)
+  assert.strictEqual(file.size, expectedSize)
+  assert.strictEqual(util.fileSize(file.path), expectedSize)
+}
+
 describe('Disk Storage', function () {
   var uploadDir, upload
 
@@ -40,10 +47,7 @@ describe('Disk Storage', function () {
 
       assert.strictEqual(req.body.name, 'Multer')
 
-      assert.strictEqual(req.file.fieldname, 'small0')
-      assert.strictEqual(req.file.originalname, 'small0.dat')
-      assert.strictEqual(req.file.size, 1778)
-      assert.strictEqual(util.fileSize(req.file.path), 1778)
+      assertFileProperties(req.file, 'small0', 'small0.dat')
 
       done()
     })
@@ -75,10 +79,7 @@ describe('Disk Storage', function () {
       assert(deepEqual(req.body.checkboxhalfempty, ['cb1', '']))
       assert(deepEqual(req.body.checkboxempty, ['', '']))
 
-      assert.strictEqual(req.file.fieldname, 'empty')
-      assert.strictEqual(req.file.originalname, 'empty.dat')
-      assert.strictEqual(req.file.size, 0)
-      assert.strictEqual(util.fileSize(req.file.path), 0)
+      assertFileProperties(req.file, 'empty', 'empty.dat')
 
       done()
     })
@@ -109,40 +110,13 @@ describe('Disk Storage', function () {
 
       assert(deepEqual(req.body, {}))
 
-      assert.strictEqual(req.files.empty[0].fieldname, 'empty')
-      assert.strictEqual(req.files.empty[0].originalname, 'empty.dat')
-      assert.strictEqual(req.files.empty[0].size, 0)
-      assert.strictEqual(util.fileSize(req.files.empty[0].path), 0)
-
-      assert.strictEqual(req.files.tiny0[0].fieldname, 'tiny0')
-      assert.strictEqual(req.files.tiny0[0].originalname, 'tiny0.dat')
-      assert.strictEqual(req.files.tiny0[0].size, 122)
-      assert.strictEqual(util.fileSize(req.files.tiny0[0].path), 122)
-
-      assert.strictEqual(req.files.tiny1[0].fieldname, 'tiny1')
-      assert.strictEqual(req.files.tiny1[0].originalname, 'tiny1.dat')
-      assert.strictEqual(req.files.tiny1[0].size, 7)
-      assert.strictEqual(util.fileSize(req.files.tiny1[0].path), 7)
-
-      assert.strictEqual(req.files.small0[0].fieldname, 'small0')
-      assert.strictEqual(req.files.small0[0].originalname, 'small0.dat')
-      assert.strictEqual(req.files.small0[0].size, 1778)
-      assert.strictEqual(util.fileSize(req.files.small0[0].path), 1778)
-
-      assert.strictEqual(req.files.small1[0].fieldname, 'small1')
-      assert.strictEqual(req.files.small1[0].originalname, 'small1.dat')
-      assert.strictEqual(req.files.small1[0].size, 315)
-      assert.strictEqual(util.fileSize(req.files.small1[0].path), 315)
-
-      assert.strictEqual(req.files.medium[0].fieldname, 'medium')
-      assert.strictEqual(req.files.medium[0].originalname, 'medium.dat')
-      assert.strictEqual(req.files.medium[0].size, 13196)
-      assert.strictEqual(util.fileSize(req.files.medium[0].path), 13196)
-
-      assert.strictEqual(req.files.large[0].fieldname, 'large')
-      assert.strictEqual(req.files.large[0].originalname, 'large.jpg')
-      assert.strictEqual(req.files.large[0].size, 2413677)
-      assert.strictEqual(util.fileSize(req.files.large[0].path), 2413677)
+      assertFileProperties(req.files.empty[0], 'empty', 'empty.dat')
+      assertFileProperties(req.files.tiny0[0], 'tiny0', 'tiny0.dat')
+      assertFileProperties(req.files.tiny1[0], 'tiny1', 'tiny1.dat')
+      assertFileProperties(req.files.small0[0], 'small0', 'small0.dat')
+      assertFileProperties(req.files.small1[0], 'small1', 'small1.dat')
+      assertFileProperties(req.files.medium[0], 'medium', 'medium.dat')
+      assertFileProperties(req.files.large[0], 'large', 'large.jpg')
 
       done()
     })
@@ -160,8 +134,7 @@ describe('Disk Storage', function () {
       assert.strictEqual(err.field, 'small0')
       assert(deepEqual(err.storageErrors, []))
 
-      var files = fs.readdirSync(uploadDir)
-      assert(deepEqual(files, []))
+      assert(deepEqual(util.readDir(uploadDir), []))
 
       done()
     })
@@ -185,4 +158,19 @@ describe('Disk Storage', function () {
       done()
     })
   })
+
+  it('should handle case where fieldname and originalname did not match', function (done) {
+    var form = new FormData()
+    var parser = upload.single('profilePic')
+
+    form.append('profilePic', util.file('large.jpg'))
+
+    util.submitForm(parser, form, function (err, req) {
+      assert.ifError(err)
+
+      assertFileProperties(req.file, 'profilePic', 'large.jpg')
+
+      done()
+    })
+  })
 })
diff --git a/test/express-integration.js b/test/express-integration.js
index ff1757b4..5d3b48fa 100644
--- a/test/express-integration.js
+++ b/test/express-integration.js
@@ -70,7 +70,9 @@ describe('Express Integration', function () {
 
   it('should work when receiving error from fileFilter', function (done) {
     function fileFilter (req, file, cb) {
-      cb(new Error('TEST'))
+      if (file.mimetype !== 'image/png') {
+        return cb(new Error('Only PNG files are allowed'))
+      }
     }
 
     var upload = multer({ fileFilter: fileFilter })
@@ -80,7 +82,7 @@ describe('Express Integration', function () {
     var routeCalled = 0
     var errorCalled = 0
 
-    form.append('avatar', util.file('large.jpg'))
+    form.append('avatar', util.file('small0.dat'))
 
     router.post('/profile', upload.single('avatar'), function (req, res, next) {
       routeCalled++
@@ -88,7 +90,7 @@ describe('Express Integration', function () {
     })
 
     router.use(function (err, req, res, next) {
-      assert.strictEqual(err.message, 'TEST')
+      assert.strictEqual(err.message, 'Only PNG files are allowed')
 
       errorCalled++
       res.status(500).end('ERROR')
diff --git a/test/functionality.js b/test/functionality.js
index a4db245a..0a9d42de 100644
--- a/test/functionality.js
+++ b/test/functionality.js
@@ -1,7 +1,7 @@
 /* eslint-env mocha */
 
 var assert = require('assert')
-
+var path = require('path')
 var util = require('./_util')
 var multer = require('../')
 var temp = require('fs-temp')
@@ -52,7 +52,7 @@ describe('Functionality', function () {
       util.submitForm(parser, env.form, function (err, req) {
         assert.ifError(err)
         assert.ok(startsWith(req.file.path, env.uploadDir))
-        assert.strictEqual(util.fileSize(req.file.path), 1778)
+        assert.strictEqual(util.fileSize(req.file.path), util.fileSizeByName('small0.dat'))
         done()
       })
     })
@@ -128,9 +128,10 @@ describe('Functionality', function () {
 
     util.submitForm(parser, form, function (err, req) {
       assert.ifError(err)
+
       assert.strictEqual(req.files.length, 2)
-      assert.ok(req.files[0].path.indexOf('/testforme-') >= 0)
-      assert.ok(req.files[1].path.indexOf('/testforme-') >= 0)
+      assert.ok(req.files[0].path.indexOf(`${path.sep}testforme-`) >= 0)
+      assert.ok(req.files[1].path.indexOf(`${path.sep}testforme-`) >= 0)
       done()
     })
   })
diff --git a/test/memory-storage.js b/test/memory-storage.js
index cbc3e2e5..4a1607dc 100644
--- a/test/memory-storage.js
+++ b/test/memory-storage.js
@@ -2,11 +2,19 @@
 
 var assert = require('assert')
 var deepEqual = require('deep-equal')
-
 var util = require('./_util')
 var multer = require('../')
 var FormData = require('form-data')
 
+function assertFileProperties (file, expectedFieldname, expectedOriginalname) {
+  const expectedSize = util.fileSizeByName(expectedOriginalname)
+  assert.strictEqual(file.fieldname, expectedFieldname)
+  assert.strictEqual(file.originalname, expectedOriginalname)
+  assert.strictEqual(file.size, expectedSize)
+  assert.ok(Buffer.isBuffer(file.buffer))
+  assert.strictEqual(file.buffer.length, expectedSize)
+}
+
 describe('Memory Storage', function () {
   var upload
 
@@ -27,10 +35,7 @@ describe('Memory Storage', function () {
 
       assert.strictEqual(req.body.name, 'Multer')
 
-      assert.strictEqual(req.file.fieldname, 'small0')
-      assert.strictEqual(req.file.originalname, 'small0.dat')
-      assert.strictEqual(req.file.size, 1778)
-      assert.strictEqual(req.file.buffer.length, 1778)
+      assertFileProperties(req.file, 'small0', 'small0.dat')
 
       done()
     })
@@ -62,11 +67,7 @@ describe('Memory Storage', function () {
       assert(deepEqual(req.body.checkboxhalfempty, ['cb1', '']))
       assert(deepEqual(req.body.checkboxempty, ['', '']))
 
-      assert.strictEqual(req.file.fieldname, 'empty')
-      assert.strictEqual(req.file.originalname, 'empty.dat')
-      assert.strictEqual(req.file.size, 0)
-      assert.strictEqual(req.file.buffer.length, 0)
-      assert.strictEqual(Buffer.isBuffer(req.file.buffer), true)
+      assertFileProperties(req.file, 'empty', 'empty.dat')
 
       done()
     })
@@ -97,40 +98,28 @@ describe('Memory Storage', function () {
 
       assert(deepEqual(req.body, {}))
 
-      assert.strictEqual(req.files.empty[0].fieldname, 'empty')
-      assert.strictEqual(req.files.empty[0].originalname, 'empty.dat')
-      assert.strictEqual(req.files.empty[0].size, 0)
-      assert.strictEqual(req.files.empty[0].buffer.length, 0)
-
-      assert.strictEqual(req.files.tiny0[0].fieldname, 'tiny0')
-      assert.strictEqual(req.files.tiny0[0].originalname, 'tiny0.dat')
-      assert.strictEqual(req.files.tiny0[0].size, 122)
-      assert.strictEqual(req.files.tiny0[0].buffer.length, 122)
-
-      assert.strictEqual(req.files.tiny1[0].fieldname, 'tiny1')
-      assert.strictEqual(req.files.tiny1[0].originalname, 'tiny1.dat')
-      assert.strictEqual(req.files.tiny1[0].size, 7)
-      assert.strictEqual(req.files.tiny1[0].buffer.length, 7)
-
-      assert.strictEqual(req.files.small0[0].fieldname, 'small0')
-      assert.strictEqual(req.files.small0[0].originalname, 'small0.dat')
-      assert.strictEqual(req.files.small0[0].size, 1778)
-      assert.strictEqual(req.files.small0[0].buffer.length, 1778)
-
-      assert.strictEqual(req.files.small1[0].fieldname, 'small1')
-      assert.strictEqual(req.files.small1[0].originalname, 'small1.dat')
-      assert.strictEqual(req.files.small1[0].size, 315)
-      assert.strictEqual(req.files.small1[0].buffer.length, 315)
-
-      assert.strictEqual(req.files.medium[0].fieldname, 'medium')
-      assert.strictEqual(req.files.medium[0].originalname, 'medium.dat')
-      assert.strictEqual(req.files.medium[0].size, 13196)
-      assert.strictEqual(req.files.medium[0].buffer.length, 13196)
-
-      assert.strictEqual(req.files.large[0].fieldname, 'large')
-      assert.strictEqual(req.files.large[0].originalname, 'large.jpg')
-      assert.strictEqual(req.files.large[0].size, 2413677)
-      assert.strictEqual(req.files.large[0].buffer.length, 2413677)
+      assertFileProperties(req.files.empty[0], 'empty', 'empty.dat')
+      assertFileProperties(req.files.tiny0[0], 'tiny0', 'tiny0.dat')
+      assertFileProperties(req.files.tiny1[0], 'tiny1', 'tiny1.dat')
+      assertFileProperties(req.files.small0[0], 'small0', 'small0.dat')
+      assertFileProperties(req.files.small1[0], 'small1', 'small1.dat')
+      assertFileProperties(req.files.medium[0], 'medium', 'medium.dat')
+      assertFileProperties(req.files.large[0], 'large', 'large.jpg')
+
+      done()
+    })
+  })
+
+  it('should handle case where fieldname and originalname did not match', function (done) {
+    var form = new FormData()
+    var parser = upload.single('profilePic')
+
+    form.append('profilePic', util.file('large.jpg'))
+
+    util.submitForm(parser, form, function (err, req) {
+      assert.ifError(err)
+
+      assertFileProperties(req.file, 'profilePic', 'large.jpg')
 
       done()
     })
diff --git a/test/reuse-middleware.js b/test/reuse-middleware.js
index ab287041..7172ec58 100644
--- a/test/reuse-middleware.js
+++ b/test/reuse-middleware.js
@@ -18,6 +18,7 @@ describe('Reuse Middleware', function () {
     var pending = 8
 
     function submitData (fileCount) {
+      var expectedSize = util.fileSizeByName('small0.dat')
       var form = new FormData()
 
       form.append('name', 'Multer')
@@ -37,8 +38,8 @@ describe('Reuse Middleware', function () {
         req.files.forEach(function (file) {
           assert.strictEqual(file.fieldname, 'them-files')
           assert.strictEqual(file.originalname, 'small0.dat')
-          assert.strictEqual(file.size, 1778)
-          assert.strictEqual(file.buffer.length, 1778)
+          assert.strictEqual(file.size, expectedSize)
+          assert.strictEqual(file.buffer.length, expectedSize)
         })
 
         if (--pending === 0) done()