Add pages for ‘service settings’ flow

Adds the pages and wires them together, so that it’s possible to click
through them.

The wording is not quite English, but attempts to be an rough description of
what the consequences are for each of the four actions.

tests/app/main/views/test_service_settings.py

@@ -0,0 +1,61 @@
+def test_should_show_overview(notifications_admin):
+    response = notifications_admin.test_client().get('/service-settings')
+
+    assert response.status_code == 200
+    assert 'Service settings' in response.get_data(as_text=True)
+
+
+def test_should_show_service_name(notifications_admin):
+    response = notifications_admin.test_client().get('/service-settings/name')
+
+    assert response.status_code == 200
+    assert 'Service name' in response.get_data(as_text=True)
+
+
+def test_should_redirect_after_change_service_name(notifications_admin):
+    response = notifications_admin.test_client().post('/service-settings/request-to-go-live')
+
+    assert response.status_code == 302
+    assert 'http://localhost/service-settings' == response.location
+
+
+def test_should_show_request_to_go_live(notifications_admin):
+    response = notifications_admin.test_client().get('/service-settings/request-to-go-live')
+
+    assert response.status_code == 200
+    assert 'Request to go live' in response.get_data(as_text=True)
+
+
+def test_should_redirect_after_request_to_go_live(notifications_admin):
+    response = notifications_admin.test_client().post('/service-settings/request-to-go-live')
+
+    assert response.status_code == 302
+    assert 'http://localhost/service-settings' == response.location
+
+
+def test_should_show_status_page(notifications_admin):
+    response = notifications_admin.test_client().get('/service-settings/status')
+
+    assert response.status_code == 200
+    assert 'Suspend your service' in response.get_data(as_text=True)
+
+
+def test_should_show_redirect_after_status_change(notifications_admin):
+    response = notifications_admin.test_client().post('/service-settings/status')
+
+    assert response.status_code == 302
+    assert 'http://localhost/service-settings' == response.location
+
+
+def test_should_show_delete_page(notifications_admin):
+    response = notifications_admin.test_client().get('/service-settings/delete')
+
+    assert response.status_code == 200
+    assert 'Delete service' in response.get_data(as_text=True)
+
+
+def test_should_show_redirect_after_deleting_service(notifications_admin):
+    response = notifications_admin.test_client().post('/service-settings/delete')
+
+    assert response.status_code == 302
+    assert 'http://localhost/' == response.location