Merge pull request #342 from sjanuary/headless

Add a test for headless mode

Author: mattcolegate

package.json

@@ -18,7 +18,7 @@
     "tap": "7.x"
   },
   "scripts": {
-    "test": "tap --reporter tap tests/api_tests.js",
+    "test": "tap --reporter tap --timeout=120 tests/api_tests.js tests/headless_test.js",
     "install": "node-gyp rebuild"
   },
   "directories": {

tests/api_tests.js

@@ -15,6 +15,7 @@
  *******************************************************************************/
 
 var app = require('./test_app');
+app.start();
 var monitor = app.appmetrics.monitor();
 app.appmetrics.enable("profiling");
 

tests/headless_test.js

@@ -0,0 +1,74 @@
+/*******************************************************************************
+ * Copyright 2016 IBM Corp.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *******************************************************************************/
+
+var app = require('./test_app');
+var fs = require('fs');
+var path = require('path');
+var appmetrics = app.appmetrics;
+var outputDir = path.join(process.cwd(), "headlesstestoutput" + Date.now());
+
+// Run in headless mode for 1 minute, producing output in 'outputDir'
+appmetrics.configure({'com.ibm.diagnostics.healthcenter.headless':'on', 
+	'com.ibm.diagnostics.healthcenter.headless.run.duration':'1',
+	'com.ibm.diagnostics.healthcenter.headless.run.number.of.runs':'1',
+	'com.ibm.diagnostics.healthcenter.headless.output.directory': outputDir });
+app.start();
+
+
+var tap = require('tap');
+tap.plan(1); // NOTE: This needs to be updated when tests are added/removed
+
+tap.test('Headless mode should produce a .hcd file', function(t) {
+
+  setTimeout(function(){
+    fs.readdir(outputDir, function(error, files) {
+      if (error) {
+        t.fail("An error occurred: " + error)
+        t.end();
+	cleanUp();
+        return
+      }
+      for (var i = 0, len = files.length; i < len; i++) {
+        if(files[i].endsWith('.hcd')) {
+	  t.pass(".hcd file found");
+          t.end();
+          cleanUp();
+          return;
+        }
+      }
+      t.fail("No .hcd file found");
+      t.end();
+      cleanUp();
+    });
+  }, 70000);
+});
+
+function cleanUp() {
+  app.endRun();
+  deleteDir(outputDir);
+}
+
+function deleteDir(directory) {
+  // Delete temporary directory
+  if(fs.existsSync(directory)) {
+    fs.readdirSync(directory).forEach(function(file,index){
+      var fileName = path.join(directory, file)
+      fs.unlinkSync(fileName)
+    })
+    fs.rmdirSync(directory);
+  }
+}
+

tests/test_app.js

@@ -46,12 +46,15 @@ if (timeout) {
 //If being run from other test, start the agent and make available
 if (agent) {
 	appmetrics = require('../');
-	appmetrics.start();
 
 	// Make agent visible for other script files.
 	module.exports.appmetrics = appmetrics;
 }
 
+module.exports.start = function start() {
+	appmetrics.start();
+}
+
 //Write a string to memory on timer
 var test = null;
 var ih = setInterval(function() {