Redirect to mobile number confirmation page

app/main/views/manage_users.py

@@ -212,6 +212,10 @@ def edit_user_mobile_number(service_id, user_id):
     user_mobile_number = redact_mobile_number(user.mobile_number)
 
     form = ChangeMobileNumberForm(mobile_number=user_mobile_number)
+    if form.validate_on_submit():
+        session['team_member_mobile_change'] = form.mobile_number.data
+
+        return redirect(url_for('.confirm_edit_user_mobile_number', user_id=user.id, service_id=service_id))
 
     return render_template(
         'views/manage-users/edit-user-mobile.html',
@@ -221,6 +225,13 @@ def edit_user_mobile_number(service_id, user_id):
     )
 
 
+@main.route("/services/<service_id>/users/<user_id>/edit-mobile-number/confirm", methods=['GET', 'POST'])
+@login_required
+@user_has_permissions('manage_service')
+def confirm_edit_user_mobile_number(service_id, user_id):
+    return True
+
+
 @main.route("/services/<service_id>/cancel-invited-user/<uuid:invited_user_id>", methods=['GET'])
 @user_has_permissions('manage_service')
 def cancel_invited_user(service_id, invited_user_id):

app/templates/views/manage-users/edit-user-mobile.html

@@ -0,0 +1,27 @@
+{% extends "withnav_template.html" %}
+{% from "components/textbox.html" import textbox %}
+{% from "components/page-footer.html" import page_footer %}
+{% from "components/form.html" import form_wrapper %}
+
+{% block per_page_title %}
+  Change team member’s mobile number
+{% endblock %}
+
+{% block maincolumn_content %}
+
+  <h1 class="heading-large">Change team member’s mobile number</h1>
+  <p id="user_name">This will change the mobile number for {{ user.name }}.</p>
+  <div class="grid-row">
+    <div class="column-three-quarters">
+      {% call form_wrapper() %}
+        {{ textbox(form.mobile_number) }}
+        {{ page_footer(
+          'Save',
+          back_link=url_for('.edit_user_permissions', service_id=service_id, user_id=user.id),
+          back_link_text="Back"
+        ) }}
+      {% endcall %}
+    </div>
+  </div>
+
+{% endblock %}

tests/app/main/views/test_manage_users.py

@@ -1056,8 +1056,27 @@ def test_edit_user_mobile_number_page(
     assert page.select('button[type=submit]')[0].text == "Save"
 
 
-def test_edit_user_mobile_number_redirects_to_confirmation():
-    pass
+def test_edit_user_mobile_number_redirects_to_confirmation(
+    logged_in_client,
+    active_user_with_permissions,
+    service_one,
+    mocker,
+    mock_get_user,
+):
+
+    data = {'mobile_number': '07554080636'}
+    response = logged_in_client.post(
+        url_for(
+            'main.edit_user_mobile_number',
+            service_id=service_one['id'],
+            user_id=active_user_with_permissions.id), data=data)
+    assert response.status_code == 302
+    assert response.location == url_for(
+        'main.confirm_edit_user_mobile_number',
+        service_id=service_one['id'],
+        user_id=active_user_with_permissions.id,
+        _external=True
+    )
 
 
 def test_confirm_edit_user_mobile_number_page():