Various small fixes, add indication of which tags are added for power users

test/TestHelper.ts

@@ -0,0 +1,21 @@
+export default class T {
+
+    constructor(tests: [string, () => void ][]) {
+        let failures : string []= [];
+        for (const [name, test] of tests) {
+            try {
+                test();
+            } catch (e) {
+                failures.push(name);
+                console.warn("Failed test: ", name, "because", e);
+            }
+        }
+        if (failures.length == 0) {
+            console.log("All tests done!")
+        } else {
+            console.warn(failures.length, "tests failedd :(")
+            console.log("Failed tests: ", failures.join(","))
+        }
+    }
+
+}