diff --git a/tests/hs-debug-test.js b/tests/hs-debug-test.js
index 4000a9a4..90476fbc 100644
--- a/tests/hs-debug-test.js
+++ b/tests/hs-debug-test.js
@@ -61,7 +61,7 @@ globalThis.history={pushState(){},replaceState(){},back(){},forward(){}};
 
 K.registerNative('host-global',a=>{const n=a[0];return(n in globalThis)?globalThis[n]:null;});
 K.registerNative('host-get',a=>{if(a[0]==null)return null;const v=a[0][a[1]];return v===undefined?null:v;});
-K.registerNative('host-set!',a=>{if(a[0]!=null){a[0][a[1]]=a[2];if(a[1]==='innerHTML'&&a[0] instanceof El){a[0]._setInnerHTML(a[2]);}if(a[1]==='textContent'&&a[0] instanceof El){a[0].textContent=String(a[2]);}} return a[2];});
+K.registerNative('host-set!',a=>{if(a[0]!=null){const v=a[2]; if(a[1]==='innerHTML'&&a[0] instanceof El){const s=String(v!=null?v:'');a[0]._setInnerHTML(s);a[0][a[1]]=a[0].innerHTML;} else if(a[1]==='textContent'&&a[0] instanceof El){const s=String(v!=null?v:'');a[0].textContent=s;a[0].innerHTML=s;for(const c of a[0].children){c.parentElement=null;c.parentNode=null;}a[0].children=[];a[0].childNodes=[];} else{a[0][a[1]]=v;}} return a[2];});
 K.registerNative('host-call',a=>{const[o,m,...r]=a;if(o==null){const f=globalThis[m];return typeof f==='function'?f.apply(null,r):null;}if(o&&typeof o[m]==='function'){try{const v=o[m].apply(o,r);return v===undefined?null:v;}catch(e){return null;}}return null;});
 K.registerNative('host-new',a=>{const C=typeof a[0]==='string'?globalThis[a[0]]:a[0];return typeof C==='function'?new C(...a.slice(1)):null;});
 K.registerNative('host-callback',a=>{const fn=a[0];if(typeof fn==='function'&&fn.__sx_handle===undefined)return fn;if(fn&&fn.__sx_handle!==undefined)return function(){const r=K.callFn(fn,Array.from(arguments));if(globalThis._driveAsync)globalThis._driveAsync(r);return r;};return function(){};});
diff --git a/tests/hs-run-fast.js b/tests/hs-run-fast.js
index 995f33cf..04f038b5 100644
--- a/tests/hs-run-fast.js
+++ b/tests/hs-run-fast.js
@@ -176,8 +176,8 @@ const _log = _origLog; // keep reference for our own output
 
 // ─── FFI ────────────────────────────────────────────────────────
 K.registerNative('host-global',a=>{const n=a[0];return(n in globalThis)?globalThis[n]:null;});
-K.registerNative('host-get',a=>{if(a[0]==null)return null;const v=a[0][a[1]];return v===undefined?null:v;});
-K.registerNative('host-set!',a=>{if(a[0]!=null){a[0][a[1]]=a[2]; /* sync innerHTML->children */ if(a[1]==='innerHTML'&&a[0] instanceof El){a[0]._setInnerHTML(a[2]);} if(a[1]==='textContent'&&a[0] instanceof El){a[0].textContent=String(a[2]);a[0].innerHTML=String(a[2]);for(const c of a[0].children){c.parentElement=null;c.parentNode=null;}a[0].children=[];a[0].childNodes=[];}} return a[2];});
+K.registerNative('host-get',a=>{if(a[0]==null)return null;let v=a[0][a[1]];if(v===undefined)return null;if((a[1]==='innerHTML'||a[1]==='textContent'||a[1]==='value'||a[1]==='className')&&typeof v!=='string')v=String(v!=null?v:'');return v;});
+K.registerNative('host-set!',a=>{if(a[0]!=null){const v=a[2]; if(a[1]==='innerHTML'&&a[0] instanceof El){const s=String(v!=null?v:'');a[0]._setInnerHTML(s);a[0][a[1]]=a[0].innerHTML;} else if(a[1]==='textContent'&&a[0] instanceof El){const s=String(v!=null?v:'');a[0].textContent=s;a[0].innerHTML=s;for(const c of a[0].children){c.parentElement=null;c.parentNode=null;}a[0].children=[];a[0].childNodes=[];} else{a[0][a[1]]=v;}} return a[2];});
 K.registerNative('host-call',a=>{if(_testDeadline&&Date.now()>_testDeadline)throw new Error('TIMEOUT: wall clock exceeded');const[o,m,...r]=a;if(o==null){const f=globalThis[m];return typeof f==='function'?f.apply(null,r):null;}if(o&&typeof o[m]==='function'){try{const v=o[m].apply(o,r);return v===undefined?null:v;}catch(e){return null;}}return null;});
 K.registerNative('host-new',a=>{const C=typeof a[0]==='string'?globalThis[a[0]]:a[0];return typeof C==='function'?new C(...a.slice(1)):null;});
 K.registerNative('host-callback',a=>{const fn=a[0];if(typeof fn==='function'&&fn.__sx_handle===undefined)return fn;if(fn&&fn.__sx_handle!==undefined)return function(){const r=K.callFn(fn,Array.from(arguments));if(globalThis._driveAsync)globalThis._driveAsync(r);return r;};return function(){};});