test: added a react application test (in the browser)

test/jsx-web-app/fixtures/app.tsx

@@ -0,0 +1,36 @@
+import {createRoot} from "react-dom/client";
+import {StrictMode, useEffect, useState} from "react";
+
+const states = ['started', 'tick', 'ended'];
+export function App(){
+    const [state, setState] = useState(states[0])
+
+    useEffect(()=>{
+        let timeout: any;
+        let nextState = states[states.indexOf(state)+1];
+        if(nextState) {
+            timeout = setTimeout(() => {
+                console.log(`Test my sourcemap: ${nextState}`);
+                setState(nextState)
+            }, 10);
+        }
+
+        return ()=>{
+            if(timeout) {
+                clearTimeout(timeout);
+            }
+        }
+    }, [state])
+
+    return (<div style={{alignSelf: "center"}}>
+        <b>{state}</b>
+    </div>);
+}
+
+export async function start({root: rootContainer}: {root: HTMLElement}){
+    if(!rootContainer) throw new Error("Missing root element");
+    const root = createRoot(rootContainer);
+    root.render(<StrictMode>
+        <App />
+    </StrictMode>);
+}