Update example tests

Author: mdmintz

examples/test_iframes.py

@@ -0,0 +1,25 @@
+from seleniumbase import BaseCase
+
+
+class FrameTests(BaseCase):
+    def test_iframe_basics(self):
+        self.open(
+            "https://www.w3schools.com/html/tryit.asp"
+            "?filename=tryhtml_iframe_height_width_css"
+        )
+        self.ad_block()  # Reduce noise during automation
+        self.switch_to_frame("iframeResult")  # Enter the iFrame
+        self.assert_text("HTML Iframes", "h2")
+        self.switch_to_frame('[title*="Iframe"]')  # Enter iFrame inside iFrame
+        self.assert_text("This page is displayed in an iframe", "h1")
+        self.switch_to_default_content()  # Exit all iFrames
+        self.switch_to_frame("iframeResult")  # Go back inside 1st iFrame
+        self.highlight('iframe[title="Iframe Example"]')
+
+    def test_set_content_to_frame(self):
+        self.open(
+            "https://www.w3schools.com/html/tryit.asp"
+            "?filename=tryhtml_iframe_height_width_css"
+        )
+        self.set_content_to_frame("iframeResult")
+        self.highlight('iframe[title="Iframe Example"]', loops=8)

examples/upload_file_test.py

@@ -10,8 +10,7 @@ def test_file_upload_button(self):
             "https://www.w3schools.com/jsref/tryit.asp"
             "?filename=tryjsref_fileupload_get"
         )
-        self.ad_block()
-        self.switch_to_frame("iframeResult")
+        self.set_content_to_frame("iframeResult")
         zoom_in = 'input[type="file"]{zoom: 1.6;-moz-transform: scale(1.6);}'
         self.add_css_style(zoom_in)
         self.highlight('input[type="file"]')