diff --git a/.github/workflows/package-test-coverage.yml b/.github/workflows/package-test-coverage.yml
new file mode 100644
index 00000000..832cb96f
--- /dev/null
+++ b/.github/workflows/package-test-coverage.yml
@@ -0,0 +1,40 @@
+name: Package Test Coverage
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: read
+
+jobs:
+  package-tests:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Install package test dependencies
+        working-directory: ./package
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install -e ".[test]"
+
+      - name: Run package tests with coverage
+        working-directory: ./package
+        run: |
+          python -m pytest --cov=pyaslreport --cov-report=term-missing --cov-report=xml:coverage.xml --junitxml=pytest.xml
+
+      - name: Upload coverage artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: package-test-artifacts
+          path: |
+            package/coverage.xml
+            package/pytest.xml
diff --git a/package/pyproject.toml b/package/pyproject.toml
index ea50b37d..075fc5cc 100644
--- a/package/pyproject.toml
+++ b/package/pyproject.toml
@@ -14,6 +14,12 @@ dependencies = [
     "dicom2nifti~=2.6.2",
 ]
 
+[project.optional-dependencies]
+test = [
+    "pytest",
+    "pytest-cov",
+]
+
 [build-system]
 requires = ["setuptools", "wheel"]
 build-backend = "setuptools.build_meta"
diff --git a/package/pytest.ini b/package/pytest.ini
new file mode 100644
index 00000000..e5fab62a
--- /dev/null
+++ b/package/pytest.ini
@@ -0,0 +1,3 @@
+[pytest]
+testpaths = tests/unit
+pythonpath = src
diff --git a/package/src/pyaslreport/tests/test_package.py b/package/tests/unit/test_package_api.py
similarity index 63%
rename from package/src/pyaslreport/tests/test_package.py
rename to package/tests/unit/test_package_api.py
index fda43d33..b5d57fea 100644
--- a/package/src/pyaslreport/tests/test_package.py
+++ b/package/tests/unit/test_package_api.py
@@ -1,38 +1,50 @@
+from unittest.mock import MagicMock, patch
+
 import pytest
-from unittest.mock import patch, MagicMock
-from .main import get_bids_metadata
 
-# filepath: /home/ibrahim/MyPc/Projects/GSoC/ASL-Parameter-Generator/package/src/pyaslreport/test_main.py
+from pyaslreport.main import get_bids_metadata
+
 
 def test_get_bids_metadata_success():
     data = {"modality": "asl", "dicom_dir": "/fake/dir"}
     fake_header = MagicMock()
     fake_sequence = MagicMock()
     fake_sequence.extract_bids_metadata.return_value = ("meta", "context")
+
     with patch("pyaslreport.main.get_dicom_header", return_value=fake_header), \
          patch("pyaslreport.main.get_sequence", return_value=fake_sequence):
         result = get_bids_metadata(data)
-        assert result == ("meta", "context")
-        fake_sequence.extract_bids_metadata.assert_called_once()
+
+    assert result == ("meta", "context")
+    fake_sequence.extract_bids_metadata.assert_called_once()
+
 
 def test_get_bids_metadata_no_dicom_dir():
     data = {"modality": "asl"}
+
     with pytest.raises(TypeError):
         get_bids_metadata(data)
 
+
 def test_get_bids_metadata_no_sequence():
     data = {"modality": "asl", "dicom_dir": "/fake/dir"}
     fake_header = MagicMock()
+
     with patch("pyaslreport.main.get_dicom_header", return_value=fake_header), \
-         patch("pyaslreport.main.get_sequence", return_value=None):
+         patch("pyaslreport.main.get_sequence", side_effect=ValueError("No ASL sequence class found that matches the DICOM header")):
         with pytest.raises(ValueError) as exc:
             get_bids_metadata(data)
-        assert "No matching sequence found" in str(exc.value)
+
+    assert "No ASL sequence class found" in str(exc.value)
+
 
 def test_get_bids_metadata_invalid_modality():
     data = {"modality": None, "dicom_dir": "/fake/dir"}
     fake_header = MagicMock()
+
     with patch("pyaslreport.main.get_dicom_header", return_value=fake_header), \
-         patch("pyaslreport.main.get_sequence", return_value=None):
-        with pytest.raises(ValueError):
-            get_bids_metadata(data)
\ No newline at end of file
+         patch("pyaslreport.main.get_sequence", side_effect=ValueError("Unsupported modality: None")):
+        with pytest.raises(ValueError) as exc:
+            get_bids_metadata(data)
+
+    assert "Unsupported modality" in str(exc.value)