Add test for flush

tests/test_flush.py

@@ -0,0 +1,22 @@
+import base64
+from types import SimpleNamespace
+
+
+def test_flush(client, mocker):
+    def noop():
+        pass
+    run_res = SimpleNamespace()
+    run_res.stdout = b''
+    run_res.stderr = b'1/1 addresses deleted.\n'
+    run_res.returncode = 0
+    run_res.check_returncode = noop
+
+    mocker.patch('jail2ban.pfctl.run', return_value=run_res)
+
+    valid_credentials = base64.b64encode(b"test.example.com:testpassword").decode("utf-8")
+    name = 'sshd'
+    response = client.get(f"/flush/{name}",
+                          headers={"Authorization": "Basic " + valid_credentials})
+
+    assert response.json['operation'] == 'delete'
+