cypress: make sure the cell selection is visible before run test steps.

Signed-off-by: Tamás Zolnai <tamas.zolnai@collabora.com>
Change-Id: I3ce151f8ebe9405c5830630e941c94ab9ef2f7ae

cypress_test/integration_tests/common/mobile_helper.js

@@ -35,6 +35,10 @@ function enableEditingMobile() {
 	helper.doIfInCalc(function() {
 		cy.get('#formulabar')
 			.should('be.visible');
+
+		// we should have a cell selected here
+		cy.get('.spreadsheet-cell-resize-marker')
+			.should('be.visible');
 	});
 
 	// In writer, we should have the blinking cursor visible