WIP add unit test.

src/common-components/funnel-footer/funnel-footer.spec.js

@@ -1 +1,30 @@
-test.todo("some test to be written in the future");
+import { mount } from "@vue/test-utils";
+import funnelFooter from "./funnel-footer";
+
+describe("funnel-footer.vue", () => {
+
+  it("Should return footer-link class", async () => {
+    // Act
+    try {
+      global.document.getElementById = jest.fn().mockImplementation(()=> {
+        return {}
+      });
+
+      const wrapper = mount(funnelFooter, {
+        propsData: {
+          footer: true
+        },
+      });
+
+      // Assert
+      const link = wrapper.find("a");
+
+      // Expect
+      expect(link.attributes('class')).toContain("footer-link");
+      expect(global.document.getElementById).toBeCalled();
+    } catch(error) {
+      console.log(error);
+    }
+    
+  });
+});

src/common-components/funnel-footer/funnel-footer.vue

@@ -56,24 +56,24 @@ export default {
     buttonMain
   },
   data() {
-        return {
-            paddingHeight: 0
-        }
-    },
-    mounted() {
-        this.paddingHeight = document.getElementById("infoBox").offsetHeight
-        this.$nextTick(() => {
-            window.addEventListener('resize', this.onResize);
-        })
-    },
-    beforeUnmount() {
-        window.removeEventListener('resize', this.onResize);
-    },
-    methods: {
-        onResize() {
-            this.paddingHeight = document.getElementById("infoBox").offsetHeight
-        }
+    return {
+      paddingHeight: 0
     }
+  },
+  mounted() {
+    this.paddingHeight = document.getElementById("infoBox").offsetHeight;
+    this.$nextTick(() => {
+      window.addEventListener('resize', this.onResize);
+    })
+  },
+  beforeUnmount() {
+    window.removeEventListener('resize', this.onResize);
+  },
+  methods: {
+    onResize() {
+      this.paddingHeight = document.getElementById("infoBox").offsetHeight;
+    }
+  }
 };
 setTimeout(function(){ // Give it a moment to set the date
   document.getElementById('years').innerHTML += new Date().getFullYear();