diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0cc1a2c2..0f58ab35 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,8 +9,9 @@
   
 ## Changelog
   
-### **HEAD -> main** 2022/08/30 mandic00@live.com
+### **HEAD -> main** 2022/08/31 mandic00@live.com
 
+- extend release tests
 - add model load exception handling
 - add softwarekernels config option
 - expand type safety
diff --git a/TODO.md b/TODO.md
index 4310d414..0c974544 100644
--- a/TODO.md
+++ b/TODO.md
@@ -61,12 +61,12 @@ Enable via `about:config` -> `gfx.offscreencanvas.enabled`
 - Treat models that cannot be found & loaded as non-critical error  
   Instead of creating runtime exception, `human` will now report that model could not be loaded  
 - Improve `human.reset()` method to reset all config values to defaults
-- Host models in <human-models>  
+- Host models in <https://github.com/vladmandic/human-models>  
   Models can be directly used without downloading to local storage  
-  Example: `modelPath: 'https://vladmandic.github.io/human-models/models/facemesh.json'`  
+  Example: `modelBasePath: 'https://vladmandic.github.io/human-models/models/'`  
 - Allow hosting models in **Google Cloud Bucket**  
   Hosted models can be directly used without downloading to local storage  
-  Example: `modelPath: 'https://storage.googleapis.com/human-models/facemesh.json'`  
+  Example: `modelBasePath: 'https://storage.googleapis.com/human-models/'`  
 - Stricter linting rules for both **TypeScript** and **JavaScript**  
   See `./eslintrc.json` for details  
 - Enhanced type safety across entire library  
@@ -76,7 +76,7 @@ Enable via `about:config` -> `gfx.offscreencanvas.enabled`
 - Fix **NanoDet** module as alternative object detection  
 - Fix `demo/multithread/node-multiprocess.js` demo  
 - Fix `human.match` when using mixed descriptor lengths  
-- Fix WASM feature detection issue in TFJS with Edge/Chromium  
+- Fix **WASM** feature detection issue in TFJS with Edge/Chromium  
   Example: `console.log(human.env.wasm)`  
 - Increased test coverage  
   **NodeJS**: Run using: `npm run test`  
diff --git a/test/README.md b/test/README.md
index 0baea202..7f78202f 100644
--- a/test/README.md
+++ b/test/README.md
@@ -1,24 +1,3 @@
-# Test Results
-
-## Automatic Tests
+# Automatic Tests
 
 Not required for normal funcioning of library
-
-### NodeJS using TensorFlow library
-
-- Image filters are disabled due to lack of Canvas and WebGL access
-
-### NodeJS using WASM
-
-- Requires dev http server  
-  See <https://github.com/tensorflow/tfjs/issues/4927>
-- Image filters are disabled due to lack of Canvas and WeBGL access
-- Only supported input is Tensor due to missing image decoders
-
-<br>
-
-## Browser Tests
-
-- Chrome/Edge: **All Passing**
-- Firefox: WebWorkers not supported due to missing support for `OffscreenCanvas`
-- Safari: **Limited Testing**
diff --git a/test/browser.sh b/test/browser.sh
index ba4d77a8..be096943 100755
--- a/test/browser.sh
+++ b/test/browser.sh
@@ -1,2 +1,7 @@
 #!/bin/sh
-"/mnt/c/Users/mandi/AppData/Local/Google/Chrome SxS/Application/chrome.exe" --enable-unsafe-gpu --allow-insecure-localhost --auto-open-devtools-for-tabs https://localhost:10031/test/browser.html
+
+BROWSER="/mnt/c/Users/mandi/AppData/Local/Google/Chrome SxS/Application/chrome.exe"
+PARAMS="--enable-unsafe-gpu --allow-insecure-localhost --auto-open-devtools-for-tabs"
+
+"$BROWSER" $PARAMS https://localhost:10031/test/test-browser-iife.html
+"$BROWSER" $PARAMS https://localhost:10031/test/test-browser-esm.html
diff --git a/test/build.log b/test/build.log
index 568396c7..1b4ebb63 100644
--- a/test/build.log
+++ b/test/build.log
@@ -1,39 +1,39 @@
-2022-08-31 11:27:08 DATA:  Build {"name":"@vladmandic/human","version":"2.9.4"} 
-2022-08-31 11:27:08 INFO:  Application: {"name":"@vladmandic/human","version":"2.9.4"} 
-2022-08-31 11:27:08 INFO:  Environment: {"profile":"production","config":".build.json","package":"package.json","tsconfig":true,"eslintrc":true,"git":true} 
-2022-08-31 11:27:08 INFO:  Toolchain: {"build":"0.7.11","esbuild":"0.15.6","typescript":"4.8.2","typedoc":"0.23.12","eslint":"8.23.0"} 
-2022-08-31 11:27:08 INFO:  Build: {"profile":"production","steps":["clean","compile","typings","typedoc","lint","changelog"]} 
-2022-08-31 11:27:08 STATE: Clean: {"locations":["dist/*","types/lib/*","typedoc/*"]} 
-2022-08-31 11:27:08 STATE: Compile: {"name":"tfjs/nodejs/cpu","format":"cjs","platform":"node","input":"tfjs/tf-node.ts","output":"dist/tfjs.esm.js","files":1,"inputBytes":159,"outputBytes":608} 
-2022-08-31 11:27:08 STATE: Compile: {"name":"human/nodejs/cpu","format":"cjs","platform":"node","input":"src/human.ts","output":"dist/human.node.js","files":75,"inputBytes":655767,"outputBytes":308629} 
-2022-08-31 11:27:08 STATE: Compile: {"name":"tfjs/nodejs/gpu","format":"cjs","platform":"node","input":"tfjs/tf-node-gpu.ts","output":"dist/tfjs.esm.js","files":1,"inputBytes":167,"outputBytes":612} 
-2022-08-31 11:27:08 STATE: Compile: {"name":"human/nodejs/gpu","format":"cjs","platform":"node","input":"src/human.ts","output":"dist/human.node-gpu.js","files":75,"inputBytes":655771,"outputBytes":308633} 
-2022-08-31 11:27:08 STATE: Compile: {"name":"tfjs/nodejs/wasm","format":"cjs","platform":"node","input":"tfjs/tf-node-wasm.ts","output":"dist/tfjs.esm.js","files":1,"inputBytes":206,"outputBytes":664} 
-2022-08-31 11:27:08 STATE: Compile: {"name":"human/nodejs/wasm","format":"cjs","platform":"node","input":"src/human.ts","output":"dist/human.node-wasm.js","files":75,"inputBytes":655823,"outputBytes":308683} 
-2022-08-31 11:27:08 STATE: Compile: {"name":"tfjs/browser/version","format":"esm","platform":"browser","input":"tfjs/tf-version.ts","output":"dist/tfjs.version.js","files":1,"inputBytes":1125,"outputBytes":358} 
-2022-08-31 11:27:08 STATE: Compile: {"name":"tfjs/browser/esm/nobundle","format":"esm","platform":"browser","input":"tfjs/tf-browser.ts","output":"dist/tfjs.esm.js","files":2,"inputBytes":1088,"outputBytes":583} 
-2022-08-31 11:27:09 STATE: Compile: {"name":"human/browser/esm/nobundle","format":"esm","platform":"browser","input":"src/human.ts","output":"dist/human.esm-nobundle.js","files":75,"inputBytes":655742,"outputBytes":307503} 
-2022-08-31 11:27:09 STATE: Compile: {"name":"tfjs/browser/esm/custom","format":"esm","platform":"browser","input":"tfjs/tf-custom.ts","output":"dist/tfjs.esm.js","files":11,"inputBytes":1344,"outputBytes":2821914} 
-2022-08-31 11:27:09 STATE: Compile: {"name":"human/browser/iife/bundle","format":"iife","platform":"browser","input":"src/human.ts","output":"dist/human.js","files":75,"inputBytes":3477073,"outputBytes":1687675} 
-2022-08-31 11:27:09 STATE: Compile: {"name":"human/browser/esm/bundle","format":"esm","platform":"browser","input":"src/human.ts","output":"dist/human.esm.js","files":75,"inputBytes":3477073,"outputBytes":3108312} 
-2022-08-31 11:27:13 STATE: Typings: {"input":"src/human.ts","output":"types/lib","files":30} 
-2022-08-31 11:27:15 STATE: TypeDoc: {"input":"src/human.ts","output":"typedoc","objects":77,"generated":true} 
-2022-08-31 11:27:15 STATE: Compile: {"name":"demo/typescript","format":"esm","platform":"browser","input":"demo/typescript/index.ts","output":"demo/typescript/index.js","files":1,"inputBytes":6714,"outputBytes":3134} 
-2022-08-31 11:27:15 STATE: Compile: {"name":"demo/faceid","format":"esm","platform":"browser","input":"demo/faceid/index.ts","output":"demo/faceid/index.js","files":2,"inputBytes":15488,"outputBytes":7788} 
-2022-08-31 11:27:25 STATE: Lint: {"locations":["*.json","src/**/*.ts","test/**/*.js","demo/**/*.js"],"files":111,"errors":0,"warnings":0} 
-2022-08-31 11:27:25 STATE: ChangeLog: {"repository":"https://github.com/vladmandic/human","branch":"main","output":"CHANGELOG.md"} 
-2022-08-31 11:27:25 STATE: Copy: {"input":"tfjs/tfjs.esm.d.ts"} 
-2022-08-31 11:27:25 INFO:  Done... 
-2022-08-31 11:27:26 STATE: API-Extractor: {"succeeeded":true,"errors":0,"warnings":198} 
-2022-08-31 11:27:26 STATE: Copy: {"input":"types/human.d.ts"} 
-2022-08-31 11:27:26 INFO:  Analyze models: {"folders":8,"result":"models/models.json"} 
-2022-08-31 11:27:26 STATE: Models {"folder":"./models","models":13} 
-2022-08-31 11:27:26 STATE: Models {"folder":"../human-models/models","models":42} 
-2022-08-31 11:27:26 STATE: Models {"folder":"../blazepose/model/","models":4} 
-2022-08-31 11:27:26 STATE: Models {"folder":"../anti-spoofing/model","models":1} 
-2022-08-31 11:27:26 STATE: Models {"folder":"../efficientpose/models","models":3} 
-2022-08-31 11:27:26 STATE: Models {"folder":"../insightface/models","models":5} 
-2022-08-31 11:27:26 STATE: Models {"folder":"../movenet/models","models":3} 
-2022-08-31 11:27:26 STATE: Models {"folder":"../nanodet/models","models":4} 
-2022-08-31 11:27:27 STATE: Models: {"count":57,"totalSize":383017442} 
-2022-08-31 11:27:27 INFO:  Human Build complete... {"logFile":"test/build.log"} 
+2022-08-31 18:30:05 DATA:  Build {"name":"@vladmandic/human","version":"2.9.4"} 
+2022-08-31 18:30:05 INFO:  Application: {"name":"@vladmandic/human","version":"2.9.4"} 
+2022-08-31 18:30:05 INFO:  Environment: {"profile":"production","config":".build.json","package":"package.json","tsconfig":true,"eslintrc":true,"git":true} 
+2022-08-31 18:30:05 INFO:  Toolchain: {"build":"0.7.11","esbuild":"0.15.6","typescript":"4.8.2","typedoc":"0.23.12","eslint":"8.23.0"} 
+2022-08-31 18:30:05 INFO:  Build: {"profile":"production","steps":["clean","compile","typings","typedoc","lint","changelog"]} 
+2022-08-31 18:30:05 STATE: Clean: {"locations":["dist/*","types/lib/*","typedoc/*"]} 
+2022-08-31 18:30:05 STATE: Compile: {"name":"tfjs/nodejs/cpu","format":"cjs","platform":"node","input":"tfjs/tf-node.ts","output":"dist/tfjs.esm.js","files":1,"inputBytes":159,"outputBytes":608} 
+2022-08-31 18:30:06 STATE: Compile: {"name":"human/nodejs/cpu","format":"cjs","platform":"node","input":"src/human.ts","output":"dist/human.node.js","files":75,"inputBytes":655767,"outputBytes":308629} 
+2022-08-31 18:30:06 STATE: Compile: {"name":"tfjs/nodejs/gpu","format":"cjs","platform":"node","input":"tfjs/tf-node-gpu.ts","output":"dist/tfjs.esm.js","files":1,"inputBytes":167,"outputBytes":612} 
+2022-08-31 18:30:06 STATE: Compile: {"name":"human/nodejs/gpu","format":"cjs","platform":"node","input":"src/human.ts","output":"dist/human.node-gpu.js","files":75,"inputBytes":655771,"outputBytes":308633} 
+2022-08-31 18:30:06 STATE: Compile: {"name":"tfjs/nodejs/wasm","format":"cjs","platform":"node","input":"tfjs/tf-node-wasm.ts","output":"dist/tfjs.esm.js","files":1,"inputBytes":206,"outputBytes":664} 
+2022-08-31 18:30:06 STATE: Compile: {"name":"human/nodejs/wasm","format":"cjs","platform":"node","input":"src/human.ts","output":"dist/human.node-wasm.js","files":75,"inputBytes":655823,"outputBytes":308683} 
+2022-08-31 18:30:06 STATE: Compile: {"name":"tfjs/browser/version","format":"esm","platform":"browser","input":"tfjs/tf-version.ts","output":"dist/tfjs.version.js","files":1,"inputBytes":1125,"outputBytes":358} 
+2022-08-31 18:30:06 STATE: Compile: {"name":"tfjs/browser/esm/nobundle","format":"esm","platform":"browser","input":"tfjs/tf-browser.ts","output":"dist/tfjs.esm.js","files":2,"inputBytes":1088,"outputBytes":583} 
+2022-08-31 18:30:06 STATE: Compile: {"name":"human/browser/esm/nobundle","format":"esm","platform":"browser","input":"src/human.ts","output":"dist/human.esm-nobundle.js","files":75,"inputBytes":655742,"outputBytes":307503} 
+2022-08-31 18:30:06 STATE: Compile: {"name":"tfjs/browser/esm/custom","format":"esm","platform":"browser","input":"tfjs/tf-custom.ts","output":"dist/tfjs.esm.js","files":11,"inputBytes":1344,"outputBytes":2821914} 
+2022-08-31 18:30:06 STATE: Compile: {"name":"human/browser/iife/bundle","format":"iife","platform":"browser","input":"src/human.ts","output":"dist/human.js","files":75,"inputBytes":3477073,"outputBytes":1687675} 
+2022-08-31 18:30:06 STATE: Compile: {"name":"human/browser/esm/bundle","format":"esm","platform":"browser","input":"src/human.ts","output":"dist/human.esm.js","files":75,"inputBytes":3477073,"outputBytes":3108312} 
+2022-08-31 18:30:10 STATE: Typings: {"input":"src/human.ts","output":"types/lib","files":30} 
+2022-08-31 18:30:12 STATE: TypeDoc: {"input":"src/human.ts","output":"typedoc","objects":77,"generated":true} 
+2022-08-31 18:30:12 STATE: Compile: {"name":"demo/typescript","format":"esm","platform":"browser","input":"demo/typescript/index.ts","output":"demo/typescript/index.js","files":1,"inputBytes":6714,"outputBytes":3134} 
+2022-08-31 18:30:12 STATE: Compile: {"name":"demo/faceid","format":"esm","platform":"browser","input":"demo/faceid/index.ts","output":"demo/faceid/index.js","files":2,"inputBytes":15488,"outputBytes":7788} 
+2022-08-31 18:30:23 STATE: Lint: {"locations":["*.json","src/**/*.ts","test/**/*.js","demo/**/*.js"],"files":112,"errors":0,"warnings":0} 
+2022-08-31 18:30:23 STATE: ChangeLog: {"repository":"https://github.com/vladmandic/human","branch":"main","output":"CHANGELOG.md"} 
+2022-08-31 18:30:23 STATE: Copy: {"input":"tfjs/tfjs.esm.d.ts"} 
+2022-08-31 18:30:23 INFO:  Done... 
+2022-08-31 18:30:24 STATE: API-Extractor: {"succeeeded":true,"errors":0,"warnings":198} 
+2022-08-31 18:30:24 STATE: Copy: {"input":"types/human.d.ts"} 
+2022-08-31 18:30:24 INFO:  Analyze models: {"folders":8,"result":"models/models.json"} 
+2022-08-31 18:30:24 STATE: Models {"folder":"./models","models":13} 
+2022-08-31 18:30:24 STATE: Models {"folder":"../human-models/models","models":42} 
+2022-08-31 18:30:24 STATE: Models {"folder":"../blazepose/model/","models":4} 
+2022-08-31 18:30:24 STATE: Models {"folder":"../anti-spoofing/model","models":1} 
+2022-08-31 18:30:24 STATE: Models {"folder":"../efficientpose/models","models":3} 
+2022-08-31 18:30:24 STATE: Models {"folder":"../insightface/models","models":5} 
+2022-08-31 18:30:24 STATE: Models {"folder":"../movenet/models","models":3} 
+2022-08-31 18:30:24 STATE: Models {"folder":"../nanodet/models","models":4} 
+2022-08-31 18:30:24 STATE: Models: {"count":57,"totalSize":383017442} 
+2022-08-31 18:30:24 INFO:  Human Build complete... {"logFile":"test/build.log"} 
diff --git a/test/browser.html b/test/test-browser-esm.html
similarity index 96%
rename from test/browser.html
rename to test/test-browser-esm.html
index 0e53bff0..613d9ff2 100644
--- a/test/browser.html
+++ b/test/test-browser-esm.html
@@ -25,6 +25,6 @@
     <div id="events" class="events"></div>
     <div id="state" class="state"></div>
     <canvas id="canvas" class="canvas" width="256" height="256"></canvas>
-    <script type="module" src="./browser.js"></script>
+    <script type="module" src="./test-browser-esm.js"></script>
   </body>
 </html>
diff --git a/test/browser.js b/test/test-browser-esm.js
similarity index 95%
rename from test/browser.js
rename to test/test-browser-esm.js
index 5a8b0d40..6d5b83ad 100644
--- a/test/browser.js
+++ b/test/test-browser-esm.js
@@ -66,10 +66,7 @@ async function testDefault(title, testConfig = {}) {
   const t0 = human.now();
   let res;
   for (const model of Object.keys(human.models)) { // unload models
-    if (human.models[model]) {
-      // if (human.models[model].dispose) human.models[model].dispose();
-      human.models[model] = null;
-    }
+    if (human.models[model]) human.models[model] = null;
   }
   human.reset();
   res = human.validate(testConfig); // validate
@@ -91,8 +88,6 @@ async function testDefault(title, testConfig = {}) {
   human.next(); // run interpolation
   const persons = res.persons; // run persons getter
   log('  summary', { persons: persons.length, face: res.face.length, body: res.body.length, hand: res.hand.length, object: res.object.length, gesture: res.gesture.length });
-  // log('  memory', human.tf.memory());
-  // log('  performance', human.performance);
   human.tf.dispose(input.tensor);
   log(`  finished ${title}/${human.tf.getBackend()}`, { init: Math.round(t1 - t0), detect: Math.round(t2 - t1) });
   return res;
@@ -123,11 +118,7 @@ async function runBenchmark() {
 
 async function main() {
   log('human tests');
-
-  // create instance
   human = new Human({ debug: true });
-
-  // explicit init
   await human.init();
   human.events.addEventListener('warmup', () => events('warmup'));
   human.events.addEventListener('image', () => events('image'));
@@ -139,7 +130,6 @@ async function main() {
   const env = JSON.parse(JSON.stringify(human.env));
   env.kernels = human.env.kernels.length;
   detailed('environment', env);
-  // detailed('config', human.config);
 
   for (const backend of backends) {
     human.config.backend = backend;
diff --git a/test/test-browser-iife.html b/test/test-browser-iife.html
new file mode 100644
index 00000000..345c2d6d
--- /dev/null
+++ b/test/test-browser-iife.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <title>Human Browser Tests</title>
+    <meta http-equiv="content-type" content="text/html; charset=utf-8">
+    <meta name="viewport" content="width=device-width, shrink-to-fit=yes">
+    <meta name="keywords" content="Human">
+    <meta name="application-name" content="Human">
+    <meta name="description" content="Human: 3D Face Detection, Body Pose, Hand & Finger Tracking, Iris Tracking, Age & Gender Prediction, Emotion Prediction & Gesture Recognition; Author: Vladimir Mandic <https://github.com/vladmandic>">
+    <meta name="msapplication-tooltip" content="Human: 3D Face Detection, Body Pose, Hand & Finger Tracking, Iris Tracking, Age & Gender Prediction, Emotion Prediction & Gesture Recognition; Author: Vladimir Mandic <https://github.com/vladmandic>">
+    <link rel="shortcut icon" href="../../favicon.ico" type="image/x-icon">
+    <link rel="apple-touch-icon" href="../../assets/icon.png">
+    <style>
+      @font-face { font-family: 'Lato'; font-display: swap; font-style: normal; font-weight: 100; src: local('Lato'), url('../../assets/lato-light.woff2') }
+      html { font-family: 'Lato', 'Segoe UI'; font-size: 14px; font-variant: small-caps; }
+      body { margin: 0; background: black; color: white; width: 100vw; }
+      .canvas { position: fixed; bottom: 10px; right: 10px; width: 256px; height: 256px; z-index: 99; }
+      .events { position: fixed; top: 10px; right: 10px; width: 12rem; height: 1.25rem; background-color: grey; padding: 8px; z-index: 99; }
+      .state { position: fixed; top: 60px; right: 10px; width: 12rem; height: 1.25rem; background-color: grey; padding: 8px; z-index: 99; }
+      .pre { line-height: 150%; }
+    </style>
+  </head>
+  <body>
+    <pre id="log" class="pre"></pre>
+    <div id="events" class="events"></div>
+    <div id="state" class="state"></div>
+    <canvas id="canvas" class="canvas" width="256" height="256"></canvas>
+    <script src="../dist/human.js"></script>
+    <script src="./test-browser-iife.js"></script>
+  </body>
+</html>
diff --git a/test/test-browser-iife.js b/test/test-browser-iife.js
new file mode 100644
index 00000000..de1e3ebf
--- /dev/null
+++ b/test/test-browser-iife.js
@@ -0,0 +1,117 @@
+/* global Human */
+
+let human;
+
+const backends = ['wasm', 'humangl', 'webgl', 'webgpu'];
+
+const start = performance.now();
+
+function str(long, ...msg) {
+  if (!Array.isArray(msg)) return msg;
+  let line = '';
+  for (const entry of msg) {
+    if (typeof entry === 'object') line += ' ' + JSON.stringify(entry, null, long ? 2 : 0).replace(/"/g, '').replace(/,/g, ', ').replace(/:/g, ': ');
+    else line += ' ' + entry;
+  }
+  return line + '\n';
+}
+
+let last = new Date();
+async function log(...msgs) {
+  const dt = new Date();
+  const ts = `${dt.getHours().toString().padStart(2, '0')}:${dt.getMinutes().toString().padStart(2, '0')}:${dt.getSeconds().toString().padStart(2, '0')}.${dt.getMilliseconds().toString().padStart(3, '0')}`;
+  const elap = (dt - last).toString().padStart(5, '0');
+  document.getElementById('log').innerHTML += ts + ' +' + elap + 'ms &nbsp' + str(false, ...msgs);
+  document.documentElement.scrollTop = document.documentElement.scrollHeight;
+  console.log(ts, elap, ...msgs); // eslint-disable-line no-console
+  last = dt;
+}
+
+async function detailed(...msgs) {
+  const dt = new Date();
+  const ts = `${dt.getHours().toString().padStart(2, '0')}:${dt.getMinutes().toString().padStart(2, '0')}:${dt.getSeconds().toString().padStart(2, '0')}.${dt.getMilliseconds().toString().padStart(3, '0')}`;
+  const elap = (dt - last).toString().padStart(5, '0');
+  document.getElementById('log').innerHTML += ts + ' +' + elap + 'ms &nbsp' + str(true, ...msgs);
+  document.documentElement.scrollTop = document.documentElement.scrollHeight;
+  console.log(ts, elap, ...msgs); // eslint-disable-line no-console
+  last = dt;
+}
+
+async function image(url) {
+  const el = document.createElement('img');
+  el.id = 'image';
+  const loaded = new Promise((resolve) => { el.onload = () => resolve(true); });
+  el.src = url;
+  await loaded;
+  return el;
+}
+
+function draw(canvas = null) {
+  const c = document.getElementById('canvas');
+  const ctx = c.getContext('2d');
+  if (canvas) ctx.drawImage(canvas, 0, 0, c.width, c.height);
+  else ctx.clearRect(0, 0, c.width, c.height);
+}
+
+async function events(event) {
+  document.getElementById('events').innerText = `${Math.round(performance.now() - start)}ms Event: ${event}`;
+}
+
+async function testDefault(title, testConfig = {}) {
+  const t0 = human.now();
+  let res;
+  for (const model of Object.keys(human.models)) { // unload models
+    if (human.models[model]) human.models[model] = null;
+  }
+  human.reset();
+  res = human.validate(testConfig); // validate
+  if (res && res.length > 0) log('  invalid configuration', res);
+  log(`test ${title}/${human.tf.getBackend()}`, human.config);
+  await human.load();
+  const models = Object.keys(human.models).map((model) => ({ name: model, loaded: (human.models[model] !== null) }));
+  log('  models', models);
+  const ops = await human.check();
+  if (ops && ops.length > 0) log('  missing ops', ops);
+  const img = await image('../../samples/in/ai-body.jpg');
+  const input = await human.image(img); // process image
+  draw(input.canvas);
+  res = await human.warmup({ warmup: 'face' }); // warmup
+  draw(res.canvas);
+  const t1 = human.now();
+  res = await human.detect(input.tensor, testConfig); // run detect
+  const t2 = human.now();
+  human.next(); // run interpolation
+  const persons = res.persons; // run persons getter
+  log('  summary', { persons: persons.length, face: res.face.length, body: res.body.length, hand: res.hand.length, object: res.object.length, gesture: res.gesture.length });
+  human.tf.dispose(input.tensor);
+  log(`  finished ${title}/${human.tf.getBackend()}`, { init: Math.round(t1 - t0), detect: Math.round(t2 - t1) });
+  return res;
+}
+
+async function main() {
+  log('human tests');
+  human = new Human.Human({ debug: true });
+  await human.init();
+  human.events.addEventListener('warmup', () => events('warmup'));
+  human.events.addEventListener('image', () => events('image'));
+  human.events.addEventListener('detect', () => events('detect'));
+  const timer = setInterval(() => { document.getElementById('state').innerText = `State: ${human.state}`; }, 10);
+  log('version', human.version);
+  log('tfjs', human.tf.version.tfjs);
+  const env = JSON.parse(JSON.stringify(human.env));
+  env.kernels = human.env.kernels.length;
+  detailed('environment', env);
+  for (const backend of backends) {
+    human.config.backend = backend;
+    await human.init(); // init
+    if (human.tf.getBackend() !== backend) {
+      log('desired', backend, 'detected', human.tf.getBackend());
+      continue; // wrong backend
+    }
+    await testDefault('default', { debug: true });
+  }
+  log('tests complete');
+  clearInterval(timer);
+}
+
+main();