Add data persistence test

tests/cypress/e2e/settings/admin.test.js

@@ -35,7 +35,7 @@ describe('Admin can login and make sure plugin is activated', () => {
 		cy.get('#mailchimp-sf-create-activate-account').should('be.visible');
 	});
 
-	it("Admin shouldn't able to submit create account form with invalid data", () => {
+	it("Admin shouldn't be able to submit create account form with invalid data", () => {
 		cy.visit('/wp-admin/admin.php?page=mailchimp_sf_create_account');
 
 		// If logged in then log out

tests/cypress/e2e/settings/data-persistence.test.js

@@ -0,0 +1,16 @@
+/* eslint-disable no-undef */
+describe('Settings data persistence', () => {
+	before(() => {
+		cy.login();
+	});
+
+	it('Settings and list selection remain persistent between logging out and logging back in with the same account', () => {
+        // Logout
+        cy.mailchimpLogout();
+        cy.logout();
+
+        // Login
+        cy.login();
+        cy.mailchimpLogin();
+	});
+});

tests/cypress/support/commands/mailchimpLogin.js

@@ -2,6 +2,8 @@
  * Log out of Mailchimp account
  */
 Cypress.Commands.add('mailchimpLogout', () => {
+	cy.visit('/wp-admin/admin.php?page=mailchimp_sf_options');
+
 	// Logout if already connected.
 	cy.get('body').then(($body) => {
 		if ($body.find('input[value="Logout"]').length > 0) {