prefix for annotations (#191)

src/utilities/workflowAnnotationUtils.test.ts

@@ -0,0 +1,18 @@
+import { prefixObjectKeys } from "../utilities/workflowAnnotationUtils";
+
+describe("WorkflowAnnotationUtils", () => {
+    describe("prefixObjectKeys", () => {
+        it("should prefix an object with a given prefix", () => {
+            const obj = {
+                foo: "bar",
+                baz: "qux",
+            };
+            const prefix = "prefix.";
+            const expected = {
+                "prefix.foo": "bar",
+                "prefix.baz": "qux",
+            };
+            expect(prefixObjectKeys(obj, prefix)).toEqual(expected);
+        });
+    });
+});