Add example tests for "load_html_string()" and "set_content()"

Author: mdmintz

examples/offline_examples/load_html_test.py

@@ -0,0 +1,21 @@
+import pytest
+from seleniumbase import BaseCase
+
+
+@pytest.mark.offline  # Can be run with: "pytest -m offline"
+class OfflineTests(BaseCase):
+
+    def test_load_html_string(self):
+        html = "<h2>Hello</h2><p><input />&nbsp;&nbsp;<button>OK!</button></p>"
+        self.load_html_string(html)  # Open "data:text/html," then replace html
+        self.assert_text("Hello", "h2")
+        self.assert_text("OK!", "button")
+        self.type("input", "Goodbye")
+        self.click("button")
+        new_html = '<h3>Checkbox</h3><p><input type="checkbox" />Check Me!</p>'
+        self.set_content(new_html)  # Same as load_html_string(), but keeps URL
+        self.assert_text("Checkbox", "h3")
+        self.assert_text("Check Me!", "p")
+        self.assert_false(self.is_selected("input"))
+        self.click("input")
+        self.assert_true(self.is_selected("input"))