diff --git a/.github/workflows/unit-test.yml b/.github/workflows/unit-test.yml
new file mode 100644
index 0000000000..1b47b89910
--- /dev/null
+++ b/.github/workflows/unit-test.yml
@@ -0,0 +1,54 @@
+name: Test core installation and run tests
+
+# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  build:
+
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version:
+          - '3.7'
+          - '3.8'
+          - '3.9'
+          - '3.10'
+          - '3.11'
+        os:
+          - ubuntu-latest
+            # - macos-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v3
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        sudo apt-get -y update
+        if test "${{ matrix.os }}" = "ubuntu-latest";then
+          sudo make deps-ubuntu
+        fi
+        make install deps-test
+    - name: Test with pytest
+      run: |
+        make test benchmark
+    - name: test to ensure that --editable install works
+      run: |
+        make install-dev; ocrd --version
+    - name: Lint with flake8
+      run: |
+        # stop the build if there are Python syntax errors or undefined names
+        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
diff --git a/tests/test_resource_manager.py b/tests/test_resource_manager.py
index 785b568833..427882cc25 100644
--- a/tests/test_resource_manager.py
+++ b/tests/test_resource_manager.py
@@ -23,10 +23,12 @@ def test_resources_manager_config_default(monkeypatch, tmp_path):
 
     # act
     mgr = OcrdResourceManager()
+    mgr._xdg_config_home = None
 
     # assert
     default_config_dir = os.path.join(os.environ['HOME'], '.config', 'ocrd')
     f = Path(default_config_dir) / CONST_RESOURCE_YML
+    assert os.environ['HOME'] == str(tmp_path)
     assert f.exists()
     assert f == mgr.user_list
     assert mgr.add_to_user_database('ocrd-foo', f)