fix heap space option, and add tests

lib/launch.js

@@ -48,7 +48,7 @@ function launch(options, port) {
   ]
 
   if (options.heap) {
-    args.push('-Xmx=' + options.heap)
+    args.push('-Xmx' + options.heap)
   }
 
   args.push(

package.json

@@ -1,7 +1,7 @@
 {
   "name": "local-dynamo",
   "description": "A Node.js wrapper of AWS DynamoDB Local and utilities",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "homepage": "https://github.com/Medium/local-dynamo",
   "licenses": [
     {
@@ -23,13 +23,17 @@
     "type": "git",
     "url": "https://github.com/Medium/local-dynamo.git"
   },
+  "scripts": {
+    "test": "./node_modules/.bin/nodeunit test"    
+  },
   "dependencies": {
     "flags": "0.1.2",
     "kew": "0.4.0",
     "metrics": "0.1.8",
     "progress": "1.1.8"
   },
   "devDependencies": {
-    "aws-sdk": "^2.0.22"
+    "aws-sdk": "^2.0.22",
+    "nodeunit": "0.9.1"  
   }
 }

test/launch_test.js

@@ -0,0 +1,33 @@
+// Copyright 2015 A Medium Corporation.
+
+var localDynamo = require('../lib/launch')
+
+exports.testMemory = function (test) {
+  var dynamo = localDynamo.launch({
+    port: 8676,
+    heap: '512m'
+  })
+  dynamo.stdout.on('data', function (data) {
+    console.log('stdout', data.toString())
+  })
+  dynamo.stderr.on('data', function (data) {
+    console.log('stderr', data.toString())
+  })
+
+  var finished = false
+
+  dynamo.on('exit', function (code) {
+    if (finished) return
+
+    finished = true
+    test.ok(false, 'Unexpected exit code ' + code)
+    test.done()
+  })
+
+  // If everything goes well after 5 seconds, then we're done!
+  setTimeout(function () {
+    finished = true
+    dynamo.kill()
+    test.done()
+  }, 5000).unref()
+}