Added missing files with python end to end tests

.gitignore

@@ -8,6 +8,8 @@
 # For backend tests in python
 /validation/__pycache__/
 /validation/venv/
+/validation/end_to_end/__pycache__/
+/validation/end_to_end/venv/
 
 # IDE
 .idea

validation/end_to_end/requirements.txt

@@ -0,0 +1 @@
+pytest-playwright~=0.4

validation/end_to_end/test_end_to_end.py

@@ -0,0 +1,29 @@
+from pytest import fixture
+from graylog import Graylog
+
+from playwright.sync_api import Page, expect
+
+
+@fixture(scope="function", autouse=True)
+def before_each_after_each(page: Page):
+    graylog = Graylog('../../runtime')
+    graylog.start()
+    graylog.configure_telemetry()
+
+    page.goto('http://127.0.0.1:9000/')
+    # note: could also be: getByRole('textbox', { name: 'Username' })
+    page.get_by_label('Username').fill('admin')
+    page.get_by_label('Password').fill('admin')
+    page.get_by_role('button', name='Sign in').click()
+
+    yield
+    graylog.stop()
+
+def test_plugin_logging_alert_should_be_registered_issue_50(page: Page):
+    page.get_by_role('button', name='System').click()
+    page.get_by_role('menuitem', name='Configurations').click()
+    page.get_by_role('button', name='Plugins').click()
+
+    # note: could also be: await expect(page.getByText('Logging Alert')).toBeVisible();
+    expect(page.get_by_role('button', name='Logging')).to_have_text('Logging Alert')
+