Add e2e tests for login view

e2e_tests/test_login.py

@@ -0,0 +1,31 @@
+import os
+
+from playwright.sync_api import Page, expect
+
+
+def test_login_succeeds_when_valid_credentials(page: Page):
+    """
+    Given a user is on the login page,
+    When they provide valid credentials and click the "Sign in" button,
+    Then they should see a success message indicating they are logged in with access to AYR.
+    And they should be on the '/poc-search-view' page.
+    """
+    page.goto("/login")
+    page.get_by_label("Email address").fill(os.environ.get("AYR_TEST_USERNAME"))
+    page.get_by_label("Password").fill(os.environ.get("AYR_TEST_PASSWORD"))
+    page.get_by_role("button", name="Sign in").click()
+    expect(page).to_have_url("/poc-search-view")
+    expect(page.get_by_text("TNA User is logged in and has access to AYR."))
+
+
+def test_login_fails_when_invalid_credentials(page: Page):
+    """
+    Given a user is on the login page,
+    When they provide invalid credentials and click the "Sign in" button,
+    Then they should see an error message indicating the provided credentials are invalid.
+    """
+    page.goto("/login")
+    page.get_by_label("Email address").fill("bad")
+    page.get_by_label("Password").fill("credentials")
+    page.get_by_role("button", name="Sign in").click()
+    expect(page.get_by_text("Invalid username or password."))