Update e2e test for integer only N in YAXN

e2e/calculator.po.ts

@@ -196,10 +196,12 @@ export class CalculatorPage {
     const inputs = this.getParamInputs();
     await inputs.each(async (i) => {
       if (await i.isDisplayed()) {
+        // N in YAXN child of SPP module must not be float
+        const isN = (await i.getAttribute("id")).includes("_N"); // @TODO strengthen this clodo test
         const hasDot = (await i.getAttribute("value")).includes(".");
         const hasExponent = (await i.getAttribute("value")).includes("e");
         let keys = "" + Math.floor(Math.random() * 9) + 1;
-        if (! hasDot && ! hasExponent) {
+        if (! hasDot && ! hasExponent && ! isN) {
           keys = "." + keys;
         }
         await i.sendKeys(keys);