[TEST] Add component tests for Constructor.js (Js WebSocket Template)

[Harsh16gupta]

Description
Adds unit tests for the Constructor.js component in the Javascript WebSocket client template. The component contains complex conditional logic but currently has no component-level test coverage.

Component location
packages/templates/clients/websocket/javascript/components/Constructor.js

I’m happy to submit a PR implementing this.

[Adi-204]

@Harsh16gupta I don't think it is much worth adding test for this component. There are no conditionals or branching logic here, so the output is fully deterministic given the same inputs. wdyt?