Add timeout_test to demonstrate test timeouts

Author: mdmintz

examples/timeout_test.py

@@ -0,0 +1,15 @@
+""" This test fails on purpose to demonstrate the timeout feature
+    for tests that run longer than the time limit specified. """
+
+import pytest
+import time
+from seleniumbase import BaseCase
+
+
+class MyTestClass(BaseCase):
+
+    @pytest.mark.expected_failure
+    @pytest.mark.timeout(6)  # The test will fail if it runs longer than this
+    def test_timeout_failure(self):
+        self.open("https://xkcd.com/1658/")
+        time.sleep(7)