test(cypress): add basic Admin Chronograf tab test

ui/cypress/fixtures/routes.json

@@ -2,5 +2,6 @@
   "dashboards": "/dashboards",
   "hosts": "/hosts",
   "explorer": "/data-explorer",
-  "config": "/manage-sources"
+  "config": "/manage-sources",
+  "adminChronograf": "/admin-chronograf"
 }

ui/cypress/integration/chronografAdmin.test.ts

@@ -0,0 +1,21 @@
+describe('Use Admin tab', () => {
+    beforeEach(() => {
+        cy.OAuthLogin('test')
+        cy.removeConnections()
+        cy.createConnection()
+        cy.get('@connections').then(connections => {
+            cy.fixture('routes').then(({adminChronograf}) => {
+              cy.visit(`/sources/${connections[0].id}${adminChronograf}/current-organization`)
+            })
+          })
+    })
+
+    it('visit Admin tab and click around', () => {
+        cy.get('.chronograf-admin-table--user').should('exist').and('contain.text', 'test@oauth2.mock')
+        cy.get('.subsection--tab').contains('All Users').click({force: true})
+        cy.get('.chronograf-admin-table--user').should('exist').and('contain.text', 'test@oauth2.mock')
+        cy.get('.chronograf-admin-table--user').within(() => {
+            cy.get('.slide-toggle').should('have.class', 'active').and('have.class', 'disabled')
+        })
+    })
+})