feat: Tests orafin home and download views

tests/apps/orafin/test_orafin_files_view.py

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+import pathlib
+
+from airflow.www import app as application
+from bs4 import BeautifulSoup
+from flask.wrappers import Response
+import pytest
+
+from conftest import root_directory
+
+from libsys_airflow.plugins.orafin.apps.orafin_files_view import OrafinFilesView
+
+
+@pytest.fixture
+def test_airflow_client():
+    templates_folder = f"{root_directory}/libsys_airflow/plugins/orafin/templates"
+    files_base = pathlib.Path(
+        f"{root_directory}/tests/apps/orafin/orafin_file_fixtures"
+    )
+
+    app = application.create_app(testing=True)
+    app.config['WTF_CSRF_ENABLED'] = False
+    setattr(OrafinFilesView, "files_base", files_base)
+    app.appbuilder.add_view(OrafinFilesView, "Orafin", category="Folio")
+    app.blueprints['OrafinFilesView'].template_folder = templates_folder
+    app.response_class = HTMLResponse
+
+    with app.test_client() as client:
+        yield client
+
+
+class HTMLResponse(Response):
+    @property
+    def html(self):
+        return BeautifulSoup(self.get_data(), "html.parser")
+
+    @property
+    def files(self):
+        return [self.get_data()]
+
+
+def test_orafin_files_home(test_airflow_client):
+    response = test_airflow_client.get("/orafin/")
+    assert response.status_code == 200
+
+    feeder_file_links = response.html.select("#feederFileDownloads tbody tr td a")
+
+    assert feeder_file_links[0].attrs['href'] == "/orafin/data/feeder20241130_20241218"
+
+    ap_report_links = response.html.select("#apReportsDownloads tbody tr td a")
+
+    assert len(ap_report_links) == 3
+
+
+def test_downloads(test_airflow_client):
+    response = test_airflow_client.get("/orafin/data/feeder20241130_20241218")
+    assert response.status_code == 200
+
+    assert response.mimetype.startswith("application/text")
+
+    csv_response = test_airflow_client.get(
+        "/orafin/reports/xxdl_ap_payments_1218202453000.csv"
+    )
+
+    assert csv_response.mimetype.startswith("application/csv")