fixed for the two example

example/two.js

@@ -0,0 +1,18 @@
+var test = require('../');
+
+test('one', function (t) {
+    t.plan(2);
+    t.ok(true);
+    setTimeout(function () {
+        t.equal(1+3, 4);
+    }, 100);
+});
+
+test('two', function (t) {
+    t.plan(3);
+    t.equal(5, 2+3);
+    setTimeout(function () {
+        t.equal('a'.charCodeAt(0), 97);
+        t.ok(true);
+    }, 50);
+});

index.js

@@ -37,7 +37,6 @@ function createHarness (conf_) {
         })(t);
 
         results.push(t);
-        nextTick(function () { t.run() });
         return t;
     };
     test.stream = results;

lib/results.js

@@ -22,6 +22,13 @@ module.exports = function (test) {
         }
         first = false;
     };
+    nextTick(function next () {
+        var t = results.tests.shift();
+        if (!t) return results.close();
+        t.on('end', function () { nextTick(next) });
+        t.run();
+    });
+
     return output;
 };
 
@@ -33,12 +40,17 @@ function Results (stream) {
     this.tests = [];
 }
 
-Results.prototype.push = function (t) {
+Results.prototype.push = function (t, parentT) {
     var self = this;
     var write = function (s) { self.stream.queue(s) };
     t.on('run', function () {
         write('# ' + t.name + '\n');
     });
+    if (parentT) {
+        var ix = self.tests.indexOf(parentT);
+        if (ix >= 0) self.tests.splice(ix, 0, t);
+    }
+    else self.tests.push(t);
 
     var plan;
     t.on('plan', function (n) { plan = n });
@@ -51,7 +63,8 @@ Results.prototype.push = function (t) {
             if (subtests === 0 && !plan) t.emit('end');
             onend();
         });
-        self.push(st);
+        self.push(st, t);
+        if (subtests === 1) st.run();
     });
 
     t.on('result', function (res) {
@@ -65,15 +78,15 @@ Results.prototype.push = function (t) {
         if (res.ok) self.pass ++
         else self.fail ++
     });
-
     t.on('end', onend);
 
     function onend () {
-        nextTick(function () {
-            if (subtests !== 0) return;
-            if (self.tests.length === 0) self.close();
-            else self.tests.shift().run();
-        });
+        if (subtests !== 0) return;
+        if (!plan && self.tests.length === 0) self.close();
+        else if (!plan && self.tests.length) {
+            var t = self.tests.shift();
+            nextTick(function () { t.run() });
+        };
     }
 };
 
@@ -128,7 +141,7 @@ function encodeResult (res, count) {
             output += inner + lines[i] + '\n';
         }
     }
-     
+
     output += outer + '...\n';
     return output;
 }
@@ -150,6 +163,6 @@ function getSerialize () {
             if (found) ret = '[Circular]'
             else seen.push(value)
         }
-        return ret
+        return ret;
     };
 }