New: [AEA-4787] - Prescription not found page (#278)

## Summary

- Routine Change

### Details

Tests the behaviour of the prescription not found page

Author: wildjames

features/cpts_ui/search_for_a_prescription.feature

@@ -33,6 +33,35 @@ Feature: I can visit the Clinical Prescription Tracker Service Website
     And I click the confirm and continue button on the your selected role page
     Then I can see the RBAC banner
 
+  @allure.tms:https://nhsd-jira.digital.nhs.uk/browse/AEA-4787
+  Scenario: User is redirected correctly when they search for non-existent prescriptions
+    Given I am logged in as a user with a single access role
+    When I am on the search for a prescription page
+    And I click on tab Prescription ID search
+    # Search for a prescription ID that DOES NOT return anything
+    And I search for a prescription using a valid prescription ID "209E3D-A83008-327F9F"
+    Then I am on the prescription not found page with redirect to PrescriptionIdSearch
+    
+  # TODO: Update this test when the NHS number search is implemented
+  # @allure.tms:https://nhsd-jira.digital.nhs.uk/browse/AEA-4787
+  # Scenario: User is redirected correctly when they search for non-existent patient
+  #   Given I am logged in as a user with a single access role
+  #   When I am on the search for a prescription page
+  #   And I click on tab NHS Number search
+  #   # Search for a prescription ID that DOES NOT return anything
+  #   And I search for a patient using a valid NHS number "1234567890"
+  #   Then I am on the prescription not found page with redirect to NhsNumSearch
+
+  @allure.tms:https://nhsd-jira.digital.nhs.uk/browse/AEA-4787
+  Scenario: User is redirected correctly when they hit the "Go Back" button after searching for non-existent prescription ID
+    Given I am logged in as a user with a single access role
+    When I am on the search for a prescription page
+    And I click on tab Prescription ID search
+    # Search for a prescription ID that DOES NOT return anything
+    And I search for a prescription using a valid prescription ID "209E3D-A83008-327F9F"
+    And I click the Go Back link on the prescription not found page
+    Then I am on tab Prescription ID search
+
   @allure.tms:https://nhsd-jira.digital.nhs.uk/browse/AEA-4783
   @find_prescription
   Scenario: User enters a valid prescription ID and is redirected to results page
@@ -43,7 +72,7 @@ Feature: I can visit the Clinical Prescription Tracker Service Website
     And I click the Find a prescription button
     Then I am redirected to the prescription results page for "C0C757-A83008-C2D93O"
 
- @allure.tms:https://nhsd-jira.digital.nhs.uk/browse/AEA-4783
+  @allure.tms:https://nhsd-jira.digital.nhs.uk/browse/AEA-4783
   @find_prescription
   Scenario Outline: User sees validation error for incorrect prescription ID
     Given I am logged in as a user with a single access role

features/steps/__init__.py

@@ -9,3 +9,4 @@
 from cpts_ui.your_selected_role_steps import *  # noqa: F403,F401
 from cpts_ui.page_not_found_steps import *  # noqa: F403,F401
 from cpts_ui.prescription_list_steps import *  # noqa: F403,F401
+from cpts_ui.prescription_not_found_page_steps import *  # noqa: F403,F401

features/steps/cpts_ui/prescription_list_steps.py

@@ -11,8 +11,7 @@ def search_using_prescription_id(context, prescription_id):
     search_input = context.page.get_by_test_id("prescription-id-input")
     search_input.fill(prescription_id)
 
-    # Use data-testid to find the button instead of text content
-    context.page.locator('[data-testid="find-prescription-button"]').click()
+    context.page.get_by_test_id("find-prescription-button").click()
 
 
 @given("I have accessed the prescription list page using a prescription ID search")

features/steps/cpts_ui/prescription_not_found_page_steps.py

@@ -0,0 +1,27 @@
+# pylint: disable=no-name-in-module
+from behave import when, then  # pyright: ignore [reportAttributeAccessIssue]
+from playwright.sync_api import expect
+
+from pages.prescription_not_found import PrescriptionNotFound
+
+
+@then("I am on the prescription not found page with redirect to {}")
+def i_am_on_prescription_not_found_page(context, tab_name):
+    page = PrescriptionNotFound(context.page)
+
+    expect(page.header).to_be_visible()
+    expect(page.body1).to_be_visible()
+    expect(page.back_link).to_be_visible()
+
+    url_target = "/site/search"
+    if tab_name:
+        url_target += f"#{tab_name}"
+
+    expect(page.back_link).to_have_attribute("href", url_target)
+
+
+@when("I click the Go Back link on the prescription not found page")
+def i_click_go_back_presc_not_found(context):
+    page = PrescriptionNotFound(context.page)
+
+    page.back_link.click()

pages/prescription_not_found.py

@@ -0,0 +1,11 @@
+from playwright.sync_api import Page
+
+
+class PrescriptionNotFound:
+    def __init__(self, page: Page):
+        page.wait_for_load_state()
+        self.page = page
+
+        self.header = page.get_by_test_id("presc-not-found-header")
+        self.body1 = page.get_by_test_id("presc-not-found-body1")
+        self.back_link = page.get_by_test_id("presc-not-found-backlink")