add missing files throughout the codebase (#102)

django-stubs/contrib/admin/tests.pyi

@@ -0,0 +1,23 @@
+from typing import Any, Callable
+
+from django.contrib.staticfiles.testing import StaticLiveServerTestCase
+from django.test.selenium import SeleniumTestCase
+from django.utils.deprecation import MiddlewareMixin
+
+class CSPMiddleware(MiddlewareMixin): ...
+
+class AdminSeleniumTestCase(SeleniumTestCase, StaticLiveServerTestCase):
+    def wait_until(self, callback: Callable, timeout: int = ...) -> None: ...
+    def wait_for_popup(self, num_windows: int = ..., timeout: int = ...) -> None: ...
+    def wait_for(self, css_selector: str, timeout: int = ...) -> None: ...
+    def wait_for_text(self, css_selector: str, text: str, timeout: int = ...) -> None: ...
+    def wait_for_value(self, css_selector: str, text: str, timeout: int = ...) -> None: ...
+    def wait_until_visible(self, css_selector: str, timeout: int = ...) -> None: ...
+    def wait_until_invisible(self, css_selector: str, timeout: int = ...) -> None: ...
+    def wait_page_loaded(self) -> None: ...
+    def admin_login(self, username: str, password: str, login_url: str = ...) -> None: ...
+    def get_css_value(self, selector: str, attribute: str) -> Any: ...
+    def get_select_option(self, selector: str, value: Any) -> Any: ...
+    def assertSelectOptions(self, selector: str, values: Any) -> None: ...
+    def assertSelectedOptions(self, selector: str, values: Any) -> None: ...
+    def has_css_class(self, selector: str, klass: str) -> bool: ...