reset schedule_render_later flag after triggering (#688)

Author: rmorshea

src/idom/core/hooks.py

@@ -690,6 +690,7 @@ def affect_layout_did_render(self) -> None:
 
         if self._schedule_render_later:
             self._schedule_render()
+        self._schedule_render_later = False
 
     def affect_component_will_unmount(self) -> None:
         """The component is about to be removed from the layout"""

src/idom/testing.py

@@ -25,7 +25,9 @@
 from uuid import uuid4
 from weakref import ref
 
-from selenium.webdriver import Chrome
+from selenium.webdriver.chrome.options import Options as ChromeOptions
+from selenium.webdriver.chrome.webdriver import WebDriver as Chrome
+from selenium.webdriver.common.options import BaseOptions
 from selenium.webdriver.remote.webdriver import WebDriver
 
 from idom.config import IDOM_WEB_MODULES_DIR
@@ -47,7 +49,7 @@
 
 def create_simple_selenium_web_driver(
     driver_type: Type[WebDriver] = Chrome,
-    driver_options: Optional[Any] = None,
+    driver_options: BaseOptions = ChromeOptions(),
     implicit_wait_timeout: float = 10.0,
     page_load_timeout: float = 5.0,
     window_size: Tuple[int, int] = (1080, 800),