refactored to support browser and nodejs. also seperated out execution to a run() to allow loading tests from files

src/test.it.js

@@ -1,7 +1,19 @@
+/* Test.it v 0.5 | MIT | https://github.com/n2geoff/testit */
+(function(root, factory) {
+    // support  browser & commonjs
+    if(typeof module === "object" && module.exports) {
+        module.exports = factory(root.test);
+    } else {
+        root.test = factory(root.test);
+    }
+}(this, function() {
     'use strict';
 
     const test = {
-    it: function(tests, next) {
+        _tests: {},
+        run: function(next) {
+    
+            let tests = this._tests;
             // capture results
             let failed = [];
             let passed = [];
@@ -38,9 +50,16 @@ const test = {
                 return failed.length ? false : true;
             }
         },
+        it: function(tests) {
+            this._tests = tests;
+            return this;
+        },
         assert: function (e, a) { if (e != a) throw Error(`expected ${e} == ${a}`); },
         equals: function (e, a) { if (e !== a) throw Error(`expected ${e} === ${a}`); },
         exists: function (v) { if (!v) throw Error(`exists value ${v}`); },
         pass: function () { return true; },
         fail: function (m) { throw Error(m); }
     }
+
+    return test;
+}));