open correct viewer for each type and reorder the structure

scm-ui/src/repos/sources/components/content/SourcecodeViewer.test.js

@@ -0,0 +1,22 @@
+//@flow
+import fetchMock from "fetch-mock";
+import { getContent } from "./SourcecodeViewer";
+
+describe("get content", () => {
+  const CONTENT_URL =
+    "/repositories/scmadmin/TestRepo/content/testContent";
+
+  afterEach(() => {
+    fetchMock.reset();
+    fetchMock.restore();
+  });
+
+  it("should return content", done => {
+    fetchMock.getOnce("/api/v2" + CONTENT_URL, "This is a testContent");
+
+    getContent(CONTENT_URL).then(content => {
+      expect(content).toBe("This is a testContent");
+      done();
+    });
+  });
+});