diff --git a/dist/testit.js b/dist/testit.js
index 69e0c46..06127f2 100644
--- a/dist/testit.js
+++ b/dist/testit.js
@@ -1,6 +1,7 @@
-/*! Test.it v 0.9.0 | MIT | https://github.com/n2geoff/testit */
+/*! Test.it v1.0.0 | MIT | https://github.com/n2geoff/testit */
 const test = {
     "log": console.log, 
+    "version": "v1.0.0",
     "_tests": {},
     "run": function run(errors, next) {
         if(typeof errors !== "boolean") {
@@ -43,46 +44,14 @@ const test = {
         this._tests = tests;
         return this;
     },
-    "expects": function expects(val) {
-        return {
-            "to": {
-                "be": {
-                    "a": (type) => { return test.expects(val).to.be.an(type); },
-                    "an": (type) => {
-
-                        if(["array"].indexOf(type) !== -1) {
-                            if(val.constructor.name.toLowerCase() !== "array") {
-                                throw new Error(`expected ${typeof val} to be an ${type}`);
-                            }
-
-                            return true;
-                        }
-
-                        if(typeof val !== type) {
-                            throw new Error(`expected ${typeof val} to be an ${type}`);
-                        }
-                    },
-                    "ok": () => { return test.expects(val).to.exist(); },
-                    "like": (comp) => {
-                        if(val != comp) {
-                            throw new Error(`expected ${val} == ${comp}`);
-                        }
-                    }
-                },
-                "equal": (comp) => {
-                    if(val !== comp) {
-                        throw new Error(`expected ${val} === ${comp}`);
-                    }
-                },
-                "exist": () => {
-                    if(!val) {
-                        throw new Error(`expected ${val} to be truthy`);
-                    }
-                },
-                "pass": () => { return true; },
-                "fail": (msg) => { throw new Error(msg); }
+    "assert": (expression, msg) => {
+        try {
+            if(!expression) {
+                throw new Error(msg || "Assertion Failed");
             }
-        };
+        } catch (e) {
+            throw new Error(msg);
+        }
     }
 };
 
diff --git a/dist/testit.min.js b/dist/testit.min.js
index d329b2e..58afdaa 100644
--- a/dist/testit.min.js
+++ b/dist/testit.min.js
@@ -1 +1 @@
-const test={log:console.log,_tests:{},run:function(t,e){"boolean"!=typeof t&&(e=t,t=!0);let r=this._tests||[],o=[],n=[];return Object.keys(r).forEach(e=>{let s=r[e];try{s(),n.push(`\n+OK ${e}`)}catch(r){t?o.push(`\n-ERR ${e} \n --- \n ${r.stack} \n ---`):o.push(`\n-ERR ${e}`)}}),"function"==typeof e?e({pass:n,fail:o}):(test.log(...n,...o),test.log(`\n# tests ${o.length+n.length} pass ${n.length} fail ${o.length}`),!o.length)},it:function(t){return this._tests=t,this},expects:function(t){return{to:{be:{a:e=>test.expects(t).to.be.an(e),an:e=>{if(-1!==["array"].indexOf(e)){if("array"!==t.constructor.name.toLowerCase())throw new Error(`expected ${typeof t} to be an ${e}`);return!0}if(typeof t!==e)throw new Error(`expected ${typeof t} to be an ${e}`)},ok:()=>test.expects(t).to.exist(),like:e=>{if(t!=e)throw new Error(`expected ${t} == ${e}`)}},equal:e=>{if(t!==e)throw new Error(`expected ${t} === ${e}`)},exist:()=>{if(!t)throw new Error(`expected ${t} to be truthy`)},pass:()=>!0,fail:t=>{throw new Error(t)}}}}};export default test;
\ No newline at end of file
+const test={log:console.log,version:"v1.0.0",_tests:{},run:function(t,e){"boolean"!=typeof t&&(e=t,t=!0);let s=this._tests||[],n=[],o=[];return Object.keys(s).forEach(e=>{let r=s[e];try{r(),o.push(`\n+OK ${e}`)}catch(s){t?n.push(`\n-ERR ${e} \n --- \n ${s.stack} \n ---`):n.push(`\n-ERR ${e}`)}}),"function"==typeof e?e({pass:o,fail:n}):(test.log(...o,...n),test.log(`\n# tests ${n.length+o.length} pass ${o.length} fail ${n.length}`),!n.length)},it:function(t){return this._tests=t,this},assert:(t,e)=>{try{if(!t)throw new Error(e||"Assertion Failed")}catch(t){throw new Error(e)}}};export default test;
\ No newline at end of file
diff --git a/dist/testit.umd.js b/dist/testit.umd.js
index dbb6a19..8b8350a 100644
--- a/dist/testit.umd.js
+++ b/dist/testit.umd.js
@@ -4,9 +4,10 @@
     (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.umd = factory());
 }(this, (function () { 'use strict';
 
-/*! Test.it v 0.9.0 | MIT | https://github.com/n2geoff/testit */
+    /*! Test.it v1.0.0 | MIT | https://github.com/n2geoff/testit */
     const test = {
         "log": console.log, 
+        "version": "v1.0.0",
         "_tests": {},
         "run": function run(errors, next) {
             if(typeof errors !== "boolean") {
@@ -49,46 +50,14 @@
             this._tests = tests;
             return this;
         },
-        "expects": function expects(val) {
-            return {
-                "to": {
-                    "be": {
-                        "a": (type) => { return test.expects(val).to.be.an(type); },
-                        "an": (type) => {
-
-                            if(["array"].indexOf(type) !== -1) {
-                                if(val.constructor.name.toLowerCase() !== "array") {
-                                    throw new Error(`expected ${typeof val} to be an ${type}`);
-                                }
-
-                                return true;
-                            }
-
-                            if(typeof val !== type) {
-                                throw new Error(`expected ${typeof val} to be an ${type}`);
-                            }
-                        },
-                        "ok": () => { return test.expects(val).to.exist(); },
-                        "like": (comp) => {
-                            if(val != comp) {
-                                throw new Error(`expected ${val} == ${comp}`);
-                            }
-                        }
-                    },
-                    "equal": (comp) => {
-                        if(val !== comp) {
-                            throw new Error(`expected ${val} === ${comp}`);
-                        }
-                    },
-                    "exist": () => {
-                        if(!val) {
-                            throw new Error(`expected ${val} to be truthy`);
-                        }
-                    },
-                    "pass": () => { return true; },
-                    "fail": (msg) => { throw new Error(msg); }
+        "assert": (expression, msg) => {
+            try {
+                if(!expression) {
+                    throw new Error(msg || "Assertion Failed");
                 }
-            };
+            } catch (e) {
+                throw new Error(msg);
+            }
         }
     };
 
diff --git a/dist/testit.umd.min.js b/dist/testit.umd.min.js
index 7fa3ade..8f7c0dc 100644
--- a/dist/testit.umd.min.js
+++ b/dist/testit.umd.min.js
@@ -1 +1 @@
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define("umd",t):(e="undefined"!=typeof globalThis?globalThis:e||self).umd=t()}(this,function(){"use strict";const e={log:console.log,_tests:{},run:function(t,o){"boolean"!=typeof t&&(o=t,t=!0);let n=this._tests||[],r=[],s=[];return Object.keys(n).forEach(e=>{let o=n[e];try{o(),s.push(`\n+OK ${e}`)}catch(o){t?r.push(`\n-ERR ${e} \n --- \n ${o.stack} \n ---`):r.push(`\n-ERR ${e}`)}}),"function"==typeof o?o({pass:s,fail:r}):(e.log(...s,...r),e.log(`\n# tests ${r.length+s.length} pass ${s.length} fail ${r.length}`),!r.length)},it:function(e){return this._tests=e,this},expects:function(t){return{to:{be:{a:o=>e.expects(t).to.be.an(o),an:e=>{if(-1!==["array"].indexOf(e)){if("array"!==t.constructor.name.toLowerCase())throw new Error(`expected ${typeof t} to be an ${e}`);return!0}if(typeof t!==e)throw new Error(`expected ${typeof t} to be an ${e}`)},ok:()=>e.expects(t).to.exist(),like:e=>{if(t!=e)throw new Error(`expected ${t} == ${e}`)}},equal:e=>{if(t!==e)throw new Error(`expected ${t} === ${e}`)},exist:()=>{if(!t)throw new Error(`expected ${t} to be truthy`)},pass:()=>!0,fail:e=>{throw new Error(e)}}}}};return e});
\ No newline at end of file
+!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define("umd",e):(t="undefined"!=typeof globalThis?globalThis:t||self).umd=e()}(this,function(){"use strict";const t={log:console.log,version:"v1.0.0",_tests:{},run:function(e,n){"boolean"!=typeof e&&(n=e,e=!0);let o=this._tests||[],s=[],i=[];return Object.keys(o).forEach(t=>{let n=o[t];try{n(),i.push(`\n+OK ${t}`)}catch(n){e?s.push(`\n-ERR ${t} \n --- \n ${n.stack} \n ---`):s.push(`\n-ERR ${t}`)}}),"function"==typeof n?n({pass:i,fail:s}):(t.log(...i,...s),t.log(`\n# tests ${s.length+i.length} pass ${i.length} fail ${s.length}`),!s.length)},it:function(t){return this._tests=t,this},assert:(t,e)=>{try{if(!t)throw new Error(e||"Assertion Failed")}catch(t){throw new Error(e)}}};return t});
\ No newline at end of file
diff --git a/package.json b/package.json
index 8173a63..686a1b5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "testit",
-  "version": "0.9.0",
+  "version": "1.0.0",
   "description": "minimalistic testing library",
   "main": "src/testit.js",
   "directories": {
diff --git a/src/testit.js b/src/testit.js
index 9aab1a9..5ac7784 100644
--- a/src/testit.js
+++ b/src/testit.js
@@ -1,6 +1,7 @@
-/*! Test.it v 0.9.0 | MIT | https://github.com/n2geoff/testit */
+/*! Test.it v1.0.0 | MIT | https://github.com/n2geoff/testit */
 const test = {
     "log": console.log, // eslint-disable-line
+    "version": "v1.0.0",
     "_tests": {},
     "run": function run(errors, next) {
         // TODO: rewrite to allow a show errors flag (optional)