Add 'sample' npm test:

test/sample-test.js is the smallest possible npm test.

test/sample-test.js

@@ -0,0 +1,58 @@
+/**
+   This is a sample ripple npm integration test intended to be copied as a basis
+   for new npm tests.
+*/
+
+// These three lines are required to initialize any test suite.
+var async       = require('async');
+var testutils   = require('./testutils');
+var config      = testutils.init_config();
+
+// Delete any of these next variables that aren't used in the test.
+var Account     = require('ripple-lib').UInt160;
+var Amount      = require('ripple-lib').Amount;
+var Currency    = require('ripple-lib').UInt160;
+var Remote      = require('ripple-lib').Remote;
+var Server      = require('./server').Server;
+var Transaction = require('ripple-lib').Transaction;
+var assert      = require('assert');
+var extend      = require('extend');
+var fs          = require('fs');
+var http        = require('http');
+var path        = require('path');
+
+suite('Sample test suite', function() {
+  var $ = {};
+  var opts = {};
+
+  setup(function(done) {
+    testutils.build_setup(opts).call($, done);
+  });
+
+  teardown(function(done) {
+    testutils.build_teardown().call($, done);
+  });
+
+  test('Sample test', function (done) {
+    var self = this;
+
+    var steps = [
+      function stepOne(callback) {
+          self.what = 'Step one of the sample test';
+          assert(true);
+          callback();
+      },
+
+      function stepTwo(callback) {
+          self.what = 'Step two of the sample test';
+          assert(true);
+          callback();
+      },
+    ];
+
+    async.waterfall(steps, function (error) {
+      assert(!error, self.what + ': ' + error);
+      done();
+    });
+  });
+});