fix anchor test (#882)

Author: Lukas Nys

app/components/class-field-description.hbs

@@ -16,7 +16,7 @@
       <span class='access'>deprecated</span>
     {{/if}}
     {{!-- TODO: Fix this link for a11y --}}
-    <a class='anchor class-field-description--link' role='link' {{on 'click' (fn this.updateAnchor @field.name)}} {{!-- template-lint-disable link-href-attributes --}}>
+    <a class='anchor class-field-description--link' data-test-anchor="{{@field.name}}" role='link' {{on 'click' (fn this.updateAnchor @field.name)}} {{!-- template-lint-disable link-href-attributes --}}>
       {{svg-jar 'link' width='20px' height='20px'}}
     </a>
   </h3>

tests/acceptance/anchors-test.js

@@ -11,7 +11,9 @@ module('Acceptance | Creating Anchors', function (hooks) {
     await click(element);
     assert.equal(
       currentURL(),
-      `/ember/1.0/classes/Container/properties?anchor=${element.innerText.trim()}`
+      `/ember/1.0/classes/Container/properties?anchor=${element.getAttribute(
+        'data-test-anchor'
+      )}`
     );
   });
 });