Adds a benchmark test with a minimal renderer for node

Author: spadgos

demo/benchmark.js

@@ -0,0 +1,13 @@
+module.exports = {
+  'Stress test': function () {
+    for (var i = 1; i <= 10000; ++i) {
+      this.test('Test #' + i, makeTest(i));
+    }
+  }
+};
+function makeTest(i) {
+  return function (assert) {
+    assert.that(i).is(i)();
+    assert.that(i).is.not(i + 1)();
+  };
+}

renderers/node-minimal.js

@@ -0,0 +1,15 @@
+var start;
+module.exports = {
+  beforeRun: function () {
+    start = Date.now();
+  },
+  afterRun: function (tyrtle) {
+    console.log(
+      "%d failed, %d passed, %d skipped. Run time: %sms",
+      tyrtle.fails,
+      tyrtle.passes,
+      tyrtle.skips,
+      Date.now() - start
+    );
+  }
+};