fix(StackSync): Miscellaneous fixes for stack image sync (#3663)

platform/app/cypress/support/commands.js

@@ -69,6 +69,18 @@ Cypress.Commands.add(
   }
 );
 
+Cypress.Commands.add('initViewer', (StudyInstanceUID, other = {}) => {
+  const { mode = '/basic-test', minimumThumbnails = 1, params = '' } = other;
+  cy.openStudyInViewer(StudyInstanceUID, params, mode);
+  cy.waitDicomImage();
+  // Very short wait to ensure pending updates are handled
+  cy.wait(25);
+
+  cy.expectMinimumThumbnails(minimumThumbnails);
+  cy.initCommonElementsAliases();
+  cy.initCornerstoneToolsAliases();
+});
+
 Cypress.Commands.add(
   'openStudyInViewer',
   (StudyInstanceUID, otherParams = '', mode = '/basic-test') => {
@@ -347,14 +359,9 @@ Cypress.Commands.add('percyCanvasSnapshot', (name, options = {}) => {
 });
 
 Cypress.Commands.add('setLayout', (columns = 1, rows = 1) => {
-  cy.get('[data-cy="layout"]').click();
+  cy.get('[data-cy="Layout"]').click();
 
-  cy.get('.layoutChooser')
-    .find('tr')
-    .eq(rows - 1)
-    .find('td')
-    .eq(columns - 1)
-    .click();
+  cy.get(`[data-cy="Layout-${columns - 1}-${rows - 1}"]`).click();
 
   cy.wait(10);
   cy.waitDicomImage();