Makes control.js testable with various config. changes. Adds coverage for util.js, roles.js, starts on control.js. Updates the entrypoint; untested so far

src/util.test.js

@@ -0,0 +1,17 @@
+import { ensureValidURL } from './util'
+
+describe('ensureValidURL', () => {
+  it('should not throw an error for valid http and https URLs', () => {
+    expect(() => ensureValidURL('http://example.com')).not.toThrow()
+    expect(() => ensureValidURL('https://example.com')).not.toThrow()
+  })
+
+  it('should throw an error for non-http and non-https URLs', () => {
+    expect(() => ensureValidURL('ftp://example.com')).toThrow()
+    expect(() => ensureValidURL('file://example.com')).toThrow()
+  })
+
+  it('should throw an error for invalid URLs', () => {
+    expect(() => ensureValidURL('invalid')).toThrow()
+  })
+})