MM-T636 Description field for incoming and outgoing webhooks can hold…

… 500 characters (#6682)

* first run

* fixes

* refactor, add sanity check

* Delete description_field_for_incoming_and_outgoing_webhooks_can_hold_500_characters_spec.js

name change

* move let into describe block

Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

e2e/cypress/integration/integrations/incoming_webhook/description_length_check_spec.js

@@ -0,0 +1,38 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+// ***************************************************************
+// - [#] indicates a test step (e.g. # Go to a page)
+// - [*] indicates an assertion (e.g. * Check the title)
+// - Use element ID when selecting an element. Create one if none.
+// ***************************************************************
+
+// Group: @integrations
+
+describe('Integrations', () => {
+    const maxDescription = '1234567890'.repeat(50);
+    const overMaxDescription = `${maxDescription}123`;
+
+    let testTeam;
+
+    before(() => {
+        // # Login as test user and visit the newly created test channel
+        cy.apiInitSetup().then(({team}) => {
+            testTeam = team;
+
+            // # Visit the Incoming Webhooks add page
+            cy.visit(`/${team.name}/integrations/incoming_webhooks/add`);
+        });
+    });
+
+    it('MM-T636 Description field length check', () => {
+        // * Check incoming description field only accepts 500 characters
+        cy.get('#description').clear().type(maxDescription).should('have.value', maxDescription);
+        cy.get('#description').clear().type(overMaxDescription).should('have.value', maxDescription);
+
+        // * Check outgoing description field only accepts 500 characters
+        cy.visit(`/${testTeam.name}/integrations/outgoing_webhooks/add`);
+        cy.get('#description').clear().type(maxDescription).should('have.value', maxDescription);
+        cy.get('#description').clear().type(overMaxDescription).should('have.value', maxDescription);
+    });
+});