Misc improvements

- Adds findInDomManyByClass(..) function into jest utils (fix for topcoder-platform#9)
- Excludes <Link> from jsx-a11y/anchor-is-valid rule of ESLint (fix for
  topcoder-platform#10)

Author: birdofpreyru

config/eslint/default.json

@@ -4,6 +4,11 @@
   "settings": {
     "import/resolver": {
       "babel-module": {}
-    }
+    },
+    "jsx-a11y/anchor-is-valid": ["error", {
+      "components": [],
+      "specialLink": ["hrefLeft", "hrefRight"],
+      "aspects": ["invalidHref", "noHref", "preferButton"]
+    }]
   }
 }

src/shared/utils/jest.jsx

@@ -27,6 +27,16 @@ export function findInDomByClass(dom, className) {
   return TU.findRenderedDOMComponentWithClass(dom, className);
 }
 
+/**
+ * Just an alias for TU.scryRenderedDOMComponentsWithClass(..).
+ * @param {Object} dom
+ * @param {Stirng} className
+ * @return {Array}
+ */
+export function findInDomManyByClass(dom, className) {
+  return TU.scryRenderedDOMComponentsWithClass(dom, className);
+}
+
 /**
  * Auxiliary wrapper around ReactJS Test Renderer.
  * @param {Object} component ReactJS component to render.