add prelim website tests

cypress/support/e2e.ts

@@ -1,5 +1,24 @@
 /// <reference types="cypress" />
 
-Cypress.Commands.add('dataCy', value => {
+Cypress.Commands.add('dataCy', (value: string) => {
   return cy.get(`[data-cy=${value}]`);
 });
+
+Cypress.Commands.add('login', (username: string, password: string) => {
+  cy.session(
+    [username, password],
+    () => {
+      cy.visit('/login');
+      cy.dataCy('input-username').type(username);
+      cy.dataCy('input-password').type(password);
+      cy.dataCy('button-submit').click();
+      cy.url().should('eq', Cypress.config().baseUrl + '/dashboard');
+    },
+    {
+      validate: () => {
+        cy.visit('/profile');
+      },
+    },
+  );
+  cy.visit('/dashboard');
+});

cypress/support/index.d.ts

@@ -7,5 +7,10 @@ declare namespace Cypress {
      * @example cy.dataCy('greeting')
      */
     dataCy(value: string): Chainable<JQuery<HTMLElement>>;
+    /**
+     * Custom command to login user into the app.
+     * @example cy.login('admin', 'password)
+     */
+    login(username: string, password: string): Chainable<JQuery<HTMLElement>>;
   }
 }