fix previously flaky test on itemSubmission tests on chapter8

Author: lucasfcosta

chapter8/1_writing_end_to_end_tests/2_writing_your_first_tests/cypress/videos/itemSubmission.spec.js.mp4

@@ -17,11 +17,13 @@ describe("item submission", () => {
     InventoryManagement.visit();
     cy.window().then(w => cy.stub(w.Math, "random").returns(0.5));
     InventoryManagement.addItem("cheesecake", "10");
-    InventoryManagement.findItemEntry("cheesecake", "10").should(
-      "have.attr",
-      "href",
-      "http://example.com/always-the-same-url/second-recipe"
-    );
+    InventoryManagement.findItemEntry("cheesecake", "10")
+      .get("a")
+      .should(
+        "have.attr",
+        "href",
+        "http://example.com/always-the-same-url/second-recipe"
+      );
   });
 
   it("can update an item's quantity", () => {

chapter8/1_writing_end_to_end_tests/3_sending_http_requests/cypress/videos/itemSubmission.spec.js.mp4

@@ -19,7 +19,9 @@ const updateItemList = inventory => {
     const recipeList = (await recipeResponse.json()).recipes;
     const randomRecipe = Math.floor(Math.random() * recipeList.length - 1) + 1;
     listLink.innerHTML = `${itemName} - Quantity: ${quantity}`;
-    listLink.href = recipeList[randomRecipe].href;
+    listLink.href = recipeList[randomRecipe]
+      ? recipeList[randomRecipe].href
+      : "#";
 
     if (quantity < 5) {
       listItem.className = "almost-soldout";