Issue 7019 - [CMS] Refactor `test_server.py`

cms/exceptions.py

Index: cms/exceptions.py
diff --git a/cms/exceptions.py b/cms/exceptions.py
new file mode 100644
index 0000000000000000000000000000000000000000..d28a0f4280fdf91a68938c8f922e46d9783fdd79
--- /dev/null
+++ b/cms/exceptions.py
@@ -0,0 +1,53 @@
+# This file is part of the Adblock Plus web scripts,
+# Copyright (C) 2006-present eyeo GmbH
+#
+# Adblock Plus is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 3 as
+# published by the Free Software Foundation.
+#
+# Adblock Plus is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
+
+
+class TimeoutException(Exception):
+    """Error raised when a timeout occurred.
+
+    Parameters
+    ----------
+    msg: str
+        The message to be contained by the exception.
+
+    """
+
+    def __init__(self, msg):
+        super(TimeoutException, self).__init__(msg)
+
+
+class ServerSetupTimeoutException(TimeoutException):
+    """Error raised when a timeout occured while trying to startup a server.
+
+    Parameters
+    ----------
+    host: str
+        Host where the server was intended to be setup.
+    port: int
+        Port where the server was intended to be setup.
+    time: float
+        Time after which the exception was raised.
+    err: Exception
+        That caused the server not being able to be setup.
+
+    """
+
+    _MSG_BASE = ('Setting up a server at {0}, port number {1} failed after {'
+                 '2} seconds! Original exception was: "{3}".')
+
+    def __init__(self, host, port, time, err):
+        super(ServerSetupTimeoutException, self).__init__(
+            self._MSG_BASE.format(host, port, time, err),
+        )