Localize notification_utils to the admin

This changeset pulls in all of the notification_utils code directly into the admin and removes it as an external dependency. We are doing this to cut down on operational maintenance of the project and will begin removing parts of it no longer needed for the admin.

Signed-off-by: Carlo Costino <carlo.costino@gsa.gov>

tests/notifications_utils/clients/antivirus/test_antivirus_client.py

@@ -0,0 +1,63 @@
+import io
+
+import pytest
+import requests
+
+from notifications_utils.clients.antivirus.antivirus_client import (
+    AntivirusClient,
+    AntivirusError,
+)
+
+
+@pytest.fixture(scope="function")
+def antivirus(app, mocker):
+    client = AntivirusClient()
+    app.config["ANTIVIRUS_API_HOST"] = "https://antivirus"
+    app.config["ANTIVIRUS_API_KEY"] = "test-antivirus-key"
+    client.init_app(app)
+    return client
+
+
+def test_scan_document(antivirus, rmock):
+    document = io.BytesIO(b"filecontents")
+    rmock.request(
+        "POST",
+        "https://antivirus/scan",
+        json={"ok": True},
+        request_headers={
+            "Authorization": "Bearer test-antivirus-key",
+        },
+        status_code=200,
+    )
+
+    resp = antivirus.scan(document)
+
+    assert resp
+    assert "filecontents" in rmock.last_request.text
+    assert document.tell() == 0
+
+
+def test_should_raise_for_status(antivirus, rmock):
+    with pytest.raises(AntivirusError) as excinfo:
+        rmock.request(
+            "POST",
+            "https://antivirus/scan",
+            json={"error": "Antivirus error"},
+            status_code=400,
+        )
+
+        antivirus.scan(io.BytesIO(b"document"))
+
+    assert excinfo.value.message == "Antivirus error"
+    assert excinfo.value.status_code == 400
+
+
+def test_should_raise_for_connection_errors(antivirus, rmock):
+    with pytest.raises(AntivirusError) as excinfo:
+        rmock.request(
+            "POST", "https://antivirus/scan", exc=requests.exceptions.ConnectTimeout
+        )
+        antivirus.scan(io.BytesIO(b"document"))
+
+    assert excinfo.value.message == "connection error"
+    assert excinfo.value.status_code == 503