test

test/port-finder-multiple-test.js

@@ -0,0 +1,67 @@
+/*
+ * portfinder-test.js: Tests for the `portfinder` module.
+ *
+ * (C) 2011, Charlie Robbins
+ *
+ */
+
+var vows = require('vows'),
+    assert = require('assert'),
+    async = require('async'),
+    http = require('http'),
+    portfinder = require('../lib/portfinder');
+
+var servers = [];
+
+function createServers (callback) {
+  var base = 8000;
+
+  async.whilst(
+    function () { return base < 8005 },
+    function (next) {
+      var server = http.createServer(function () { });
+      server.listen(base, next);
+      base++;
+      servers.push(server);
+    }, callback);
+}
+
+vows.describe('portfinder').addBatch({
+  "When using portfinder module": {
+    "with 5 existing servers": {
+      topic: function () {
+        createServers(this.callback);
+      },
+      "the getPorts() method with an argument of 3": {
+        topic: function () {
+          portfinder.getPorts(3, this.callback);
+        },
+        "should respond with the first three available ports (8005, 8006, 8007)": function (err, ports) {
+          assert.isTrue(!err);
+          assert.deepEqual(ports, [8005, 8006, 8007]);
+        }
+      }
+    }
+  }
+}).addBatch({
+  "When using portfinder module": {
+    "with no existing servers": {
+      topic: function () {
+        servers.forEach(function (server) {
+          server.close();
+        });
+
+        return null;
+      },
+      "the getPorts() method with an argument of 3": {
+        topic: function () {
+          portfinder.getPorts(3, this.callback);
+        },
+        "should respond with the first three available ports (8000, 8001, 80072": function (err, ports) {
+          assert.isTrue(!err);
+          assert.deepEqual(ports, [8000, 8001, 8002]);
+        }
+      }
+    }
+  }
+}).export(module);