diff --git a/packages/artifact/__tests__/upload-artifact.test.ts b/packages/artifact/__tests__/upload-artifact.test.ts
index 4c825438..e90e6160 100644
--- a/packages/artifact/__tests__/upload-artifact.test.ts
+++ b/packages/artifact/__tests__/upload-artifact.test.ts
@@ -9,7 +9,7 @@ import {uploadArtifact} from '../src/internal/upload/upload-artifact'
 import {noopLogs} from './common'
 import {FilesNotFoundError} from '../src/internal/shared/errors'
 import {BlockBlobClient} from '@azure/storage-blob'
-
+import mockFs from 'mock-fs'
 describe('upload-artifact', () => {
   beforeEach(() => {
     noopLogs()
@@ -374,6 +374,15 @@ describe('upload-artifact', () => {
           destinationPath: 'dir/file3.txt'
         }
       ])
+    mockFs({
+      '/home/user/files/plz-upload': {
+        'file1.txt': 'file1 content',
+        'file2.txt': 'file2 content',
+        dir: {
+          'file3.txt': 'file3 content'
+        }
+      }
+    })
 
     jest.spyOn(util, 'getBackendIdsFromToken').mockReturnValue({
       workflowRunBackendId: '1234',
diff --git a/packages/artifact/package-lock.json b/packages/artifact/package-lock.json
index 4eebe9e5..907ceff3 100644
--- a/packages/artifact/package-lock.json
+++ b/packages/artifact/package-lock.json
@@ -21,6 +21,7 @@
         "archiver": "^7.0.1",
         "crypto": "^1.0.1",
         "jwt-decode": "^3.1.2",
+        "mock-fs": "^5.2.0",
         "twirp-ts": "^2.5.0",
         "unzip-stream": "^0.3.1"
       },
@@ -1224,6 +1225,14 @@
         "mkdirp": "bin/cmd.js"
       }
     },
+    "node_modules/mock-fs": {
+      "version": "5.2.0",
+      "resolved": "https://registry.npmjs.org/mock-fs/-/mock-fs-5.2.0.tgz",
+      "integrity": "sha512-2dF2R6YMSZbpip1V1WHKGLNjr/k48uQClqMVb5H3MOvwc9qhYis3/IWbj02qIg/Y8MDXKFF4c5v0rxx2o6xTZw==",
+      "engines": {
+        "node": ">=12.0.0"
+      }
+    },
     "node_modules/neo-async": {
       "version": "2.6.2",
       "resolved": "https://registry.npmjs.org/neo-async/-/neo-async-2.6.2.tgz",
diff --git a/packages/artifact/package.json b/packages/artifact/package.json
index 38878192..140c3ca8 100644
--- a/packages/artifact/package.json
+++ b/packages/artifact/package.json
@@ -52,6 +52,7 @@
     "archiver": "^7.0.1",
     "crypto": "^1.0.1",
     "jwt-decode": "^3.1.2",
+    "mock-fs": "^5.2.0",
     "twirp-ts": "^2.5.0",
     "unzip-stream": "^0.3.1"
   },