Completed some missing test in components (#40769)

Author: Kaushik1216

tests/System/integration/administrator/components/com_banners/Banner.cy.js

@@ -18,4 +18,14 @@ describe('Test in backend that the banners form', () => {
 
     cy.wait('@listview');
   });
+
+  it('can edit a banner', () => {
+    cy.db_createBanner({ name: 'Test Banner' }).then((id) => {
+      cy.visit(`administrator/index.php?option=com_banners&task=banner.edit&id=${id}`);
+      cy.get('#jform_name').clear().type('Test banner edited');
+      cy.clickToolbarButton('Save & Close');
+
+      cy.contains('Test banner edited');
+    });
+  });
 });

tests/System/integration/administrator/components/com_categories/Category.cy.js

@@ -11,6 +11,16 @@ describe('Test in backend that the category form', () => {
     cy.contains('Test category');
   });
 
+  it('can change access level of a test category', () => {
+    cy.db_createCategory({ title: 'Test category' }).then((id) => {
+      cy.visit(`administrator/index.php?option=com_categories&task=category.edit&id=${id}&extension=com_content`);
+      cy.get('#jform_access').select('Special');
+      cy.clickToolbarButton('Save & Close');
+
+      cy.get('td').contains('Special').should('exist');
+    });
+  });
+
   it('check redirection to list view', () => {
     cy.visit('administrator/index.php?option=com_categories&task=category.add&extension=com_content');
     cy.intercept('index.php?option=com_categories&view=categories&extension=com_content').as('listview');

tests/System/integration/administrator/components/com_fields/Field.cy.js

@@ -11,6 +11,14 @@ describe('Test in backend that the field form', () => {
     cy.contains('Test field');
   });
 
+  it('check redirection to list view', () => {
+    cy.visit('administrator/index.php?option=com_fields&task=field.add&context=com_content.article');
+    cy.intercept('index.php?option=com_fields&view=fields&context=com_content.article').as('listview');
+    cy.clickToolbarButton('Cancel');
+
+    cy.wait('@listview');
+  });
+
   it('can edit a field', () => {
     cy.db_createField({ title: 'Test field' }).then((id) => {
       cy.visit(`administrator/index.php?option=com_fields&task=field.edit&id=${id}&context=com_content.article`);

tests/System/integration/administrator/components/com_tags/Tag.cy.js

@@ -20,4 +20,12 @@ describe('Test in backend that the tag form', () => {
       cy.contains('Test tag edited');
     });
   });
+
+  it('check redirection to list view', () => {
+    cy.visit('administrator/index.php?option=com_tags&task=tag.add');
+    cy.intercept('index.php?option=com_tags&view=tags').as('listview');
+    cy.clickToolbarButton('Cancel');
+
+    cy.wait('@listview');
+  });
 });