diff --git a/secureli/modules/pii_scanner/pii_scanner.py b/secureli/modules/pii_scanner/pii_scanner.py
index b906017c..e488fe1b 100644
--- a/secureli/modules/pii_scanner/pii_scanner.py
+++ b/secureli/modules/pii_scanner/pii_scanner.py
@@ -40,7 +40,6 @@ def __init__(
     ):
         self.repo_files = repo_files
 
-    # TODO435: Need to update README / CONTRIBUTING with this info? ok
     def scan_repo(
         self,
         folder_path: Path,
diff --git a/tests/modules/pii_scanner/test_pii_scanner_service.py b/tests/modules/pii_scanner/test_pii_scanner_service.py
index 82e9e151..b4256b0a 100644
--- a/tests/modules/pii_scanner/test_pii_scanner_service.py
+++ b/tests/modules/pii_scanner/test_pii_scanner_service.py
@@ -1,21 +1,39 @@
 import pytest
+from pytest_mock import MockerFixture
 from unittest.mock import MagicMock
+from pathlib import Path
 from secureli.modules.pii_scanner.pii_scanner import PiiScannerService
+from secureli.modules.shared.models.scan import ScanMode
+
+
+test_folder_path = Path(".")
 
 
 @pytest.fixture()
 def mock_repo_files_repository() -> MagicMock:
     mock_repo_files_repository = MagicMock()
+    mock_repo_files_repository.list_staged_files.return_value = [Path("fake_file_path")]
+    mock_repo_files_repository.list_repo_files.return_value = [Path("fake_file_path")]
     return mock_repo_files_repository
 
 
+@pytest.fixture()
+def mock_open_fn(mocker: MockerFixture) -> MagicMock:
+    mock_open = mocker.mock_open(
+        read_data="fake_email='pantsATpants.com'"  # TODO: mock PII data here
+    )
+    return mocker.patch("builtins.open", mock_open)
+
+
 @pytest.fixture()
 def pii_scanner_service(mock_repo_files_repository: MagicMock) -> PiiScannerService:
     return PiiScannerService(mock_repo_files_repository)
 
 
-# dummy test below as placeholder
-def test_that_pii_scanner_service_does_cool_things(
+def test_that_pii_scanner_service_finds_potential_pii(
     pii_scanner_service: PiiScannerService,
+    mock_open_fn: MagicMock,
 ):
-    pass
+    scan_result = pii_scanner_service.scan_repo(test_folder_path, ScanMode.ALL_FILES)
+
+    # assert not scan_result.successful # TODO: uncomment once dummy PII data available