chore: add test on deployed url

Author: Tiffany Le-Nguyen

demo/cypress/integration/test.spec.ts

@@ -1,5 +1,9 @@
 describe('TypeScript spec', () => {
-  it('works', () => {
-    cy.wrap('foo').should('equal', 'foo')
+  beforeEach(() => {
+    cy.visit('/')
+  })
+
+  it('loads home page', () => {
+    cy.findByText('Next Demo!')
   })
 })

demo/netlify.toml

@@ -3,6 +3,11 @@ command = "next build"
 publish = ".next"
 ignore = "git diff --quiet $CACHED_COMMIT_REF $COMMIT_REF . ../"
 
+[build.environment]
+# cache Cypress binary in local "node_modules" folder
+# so Netlify caches it
+CYPRESS_CACHE_FOLDER = "../node_modules/CypressBinary"
+
 [dev]
 framework = "#static"