test: undo/redo, jump to field UI tests

cypress/integration/form.js

@@ -6,6 +6,7 @@ context('Form', () => {
 			return frappe.call("frappe.tests.ui_test_helpers.create_contact_records");
 		});
 	});
+
 	it('create a new form', () => {
 		cy.visit('/app/todo/new');
 		cy.get_field('description', 'Text Editor').type('this is a test todo', {force: true}).wait(200);
@@ -95,4 +96,63 @@ context('Form', () => {
 			})
 		})
 	});
+
+	it('let user undo/redo field value changes', { scrollBehavior: false }, () => {
+		const jump_to_field = (field_label) => {
+			cy.get("body")
+				.type("{esc}")  // lose focus if any
+				.type("{ctrl+j}")  // jump to field
+				.type(field_label)
+				.wait(500)
+				.type("{enter}")
+				.wait(200)
+				.type("{enter}")
+				.wait(500);
+		};
+
+		const type_value = (value) => {
+			cy.focused()
+				.clear()
+				.type(value)
+				.type("{esc}");
+		};
+
+		const undo = () => cy.get("body").type("{esc}").type("{ctrl+z}").wait(500);
+		const redo = () => cy.get("body").type("{esc}").type("{ctrl+y}").wait(500);
+
+		cy.new_form('User');
+
+		jump_to_field("Email");
+		type_value("admin@example.com");
+
+		jump_to_field("Username");
+		type_value("admin42");
+
+		jump_to_field("Birth Date");
+		type_value("12-31-01");
+
+		jump_to_field("Send Welcome Email");
+		cy.focused().uncheck()
+
+		// make a mistake
+		jump_to_field("Username");
+		type_value("admin24");
+
+		// undo behaviour
+		undo();
+		cy.get_field("username").should('have.value', 'admin42');
+
+		// redo behaviour
+		redo();
+		cy.get_field("username").should('have.value', 'admin24');
+
+		// undo everything & redo everything, ensure same values at the end
+		undo(); undo(); undo(); undo(); undo();
+		redo(); redo(); redo(); redo(); redo();
+
+		cy.get_field("username").should('have.value', 'admin24');
+		cy.get_field("email").should('have.value', 'admin@example.com');
+		cy.get_field("birth_date").should('have.value', '12-31-2001'); // parsed  value
+		cy.get_field("send_welcome_email").should('not.be.checked');
+	});
 });