Added cookies test cases

Author: ravishankar

tests/test_driver.py

@@ -0,0 +1,26 @@
+from s_tool.driver import SeleniumDriver
+
+from . import TEST_URL
+
+
+def test_cookies():
+    with SeleniumDriver("firefox", headless=True) as obj:
+        obj.get("http://google.com")
+
+        # Validate cookies type
+        assert type(obj.cookies()) is dict
+
+        # Drop all cookies
+        obj.set_cookies(drop_all=True)
+        assert obj.cookies() == {}
+
+        # Set new cookies
+
+        obj.set_cookies(name="s-tool", version="1.0")
+        cookies = obj.cookies()
+        assert cookies.get("name") == "s-tool"
+
+        # Drop cookie by name
+        obj.set_cookies(drop_keys={"version"})
+        cookies = obj.cookies()
+        assert cookies.get("version", 1) == 1