tech: progress on react pages

public/test/mocks/common.ts

@@ -0,0 +1,14 @@
+export const backendSrv = {
+  get: jest.fn(),
+};
+
+export function createNavTree(...args) {
+  let root = [];
+  let node = root;
+  for (let arg of args) {
+    let child = { id: arg, url: `/url/${arg}`, text: `${arg}-Text`, children: [] };
+    node.push(child);
+    node = child.children;
+  }
+  return root;
+}