Add "self.assert_in()" and "self.assert_not_in()"

Author: mdmintz

help_docs/method_summary.md

@@ -350,6 +350,10 @@ self.assert_equal(first, second, msg=None)
 
 self.assert_not_equal(first, second, msg=None)
 
+self.assert_in(first, second, msg=None)
+
+self.assert_not_in(first, second, msg=None)
+
 self.assert_raises(*args, **kwargs)
 
 self.wait_for_attribute(

seleniumbase/fixtures/base_case.py

@@ -3762,6 +3762,16 @@ def assert_not_equal(self, first, second, msg=None):
         Will raise an exception if the values are equal."""
         self.assertNotEqual(first, second, msg=msg)
 
+    def assert_in(self, first, second, msg=None):
+        """Asserts that the first string is in the second string.
+        Will raise an exception if the first string is not in the second."""
+        self.assertIn(first, second, msg=msg)
+
+    def assert_not_in(self, first, second, msg=None):
+        """Asserts that the first string is not in the second string.
+        Will raise an exception if the first string is in the second string."""
+        self.assertNotIn(first, second, msg=msg)
+
     def assert_raises(self, *args, **kwargs):
         """Asserts that the following block of code raises an exception.
         Will raise an exception if the block of code has no exception.