FIX: Don't load images that don't exist in test

This makes 404 requests and fills up the logs with junk

test/javascripts/components/cook-text-test.js

@@ -24,8 +24,8 @@ componentTest("resolves short URLs", {
         [
           {
             short_url: "upload://a.png",
-            url: "/uploads/default/original/3X/c/b/1.png",
-            short_path: "/uploads/short-url/a.png"
+            url: "/images/avatar.png",
+            short_path: "/images/d-logo-sketch.png"
           }
         ]
       ];
@@ -38,9 +38,6 @@ componentTest("resolves short URLs", {
 
   test(assert) {
     const html = find(".post-body")[0].innerHTML.trim();
-    assert.equal(
-      html,
-      '<p><img src="/uploads/default/original/3X/c/b/1.png" alt="an image"></p>'
-    );
+    assert.equal(html, '<p><img src="/images/avatar.png" alt="an image"></p>');
   }
 });