Add node startup information to the local DB jstests - SERVER-7451

jstests/dbadmin.js

@@ -1,3 +1,4 @@
+load('jstests/aggregation/extras/utils.js');
 
 t = db.dbadmin;
 t.save( { x : 1 } );
@@ -36,6 +37,56 @@ print(after.uptimeEstimate);
 assert.lt( 2 , after.uptimeEstimate , "up1" )
 assert.gt( after.uptimeEstimate , before.uptimeEstimate , "up2" )
 
+// Test startup_log
+var stats = db.getSisterDB( "local" ).startup_log.stats();
+assert(stats.capped);
 
-assert.eq( db.runCommand( "buildinfo" ).gitVersion,
-           db.getSisterDB( "local" ).startup_log.find().sort( { $natural: -1 } ).limit(1).next().buildinfo.gitVersion );
+var latestStartUpLog = db.getSisterDB( "local" ).startup_log.find().sort( { $natural: -1 } ).limit(1).next();
+var serverStatus = db._adminCommand( "serverStatus" );
+var cmdLine = db._adminCommand( "getCmdLineOpts" ).parsed;
+
+// Test that the startup log has the expected keys
+var verbose = false;
+var expectedKeys = ["_id", "hostname", "startTime", "startTimeLocal", "cmdLine", "pid", "buildinfo"];
+var keys = Object.keySet(latestStartUpLog);
+assert(arrayEq(expectedKeys, keys, verbose), 'startup_log keys failed');
+
+// Tests _id implicitly - should be comprised of host-timestamp
+// Setup expected startTime and startTimeLocal from the supplied timestamp
+var _id = latestStartUpLog._id.split('-');  // _id should consist of host-timestamp
+var _idHost = _id[0];
+var _idUptime = _id[1];
+var uptimeSinceEpochRounded = Math.floor(_id[1]/1000) * 1000;
+var startTime = new Date(uptimeSinceEpochRounded);  // Expected startTime
+var startTimeLocal = new Date(latestStartUpLog.startTimeLocal); // Setup startTimeLocal so it can be compared to a local version of startTime
+startTimeLocal.setYear(startTime.getFullYear()); // startTimeLocal doesnt have the year
+startTimeLocal.setMilliseconds(0); // Remove any milliseconds
+
+assert.eq(_idHost, latestStartUpLog.hostname, "Hostname doesn't match one from _id");
+assert.eq(serverStatus.host.split(':')[0], latestStartUpLog.hostname, "Hostname doesn't match one in server status");
+assert.eq(startTime, latestStartUpLog.startTime, "StartTime doesn't match one from _id");
+assert.eq(startTimeLocal, new Date(latestStartUpLog.startTime.toLocaleString()), "StartTimeLocal doesn't match startTime converted to Local");
+assert.eq(cmdLine, latestStartUpLog.cmdLine, "cmdLine doesn't match that from getCmdLineOpts");
+assert.eq(serverStatus.pid, latestStartUpLog.pid, "pid doesn't match that from serverStatus");
+
+// Test buildinfo
+var buildinfo = db.runCommand( "buildinfo" );
+delete buildinfo.ok;  // Delete extra meta info not in startup_log
+var isMaster = db._adminCommand( "ismaster" );
+
+// Test buildinfo has the expected keys
+var expectedKeys = ["version", "gitVersion", "sysInfo", "loaderFlags", "compilerFlags", "allocator", "versionArray", "javascriptEngine", "bits", "debug", "maxBsonObjectSize"];
+var keys = Object.keySet(latestStartUpLog.buildinfo);
+assert(arrayEq(expectedKeys, keys, verbose), "buildinfo keys failed");
+assert.eq(buildinfo, latestStartUpLog.buildinfo, "buildinfo doesn't match that from buildinfo command");
+
+// Test version and version Array
+var version = latestStartUpLog.buildinfo.version.split('-')[0];
+var versionArray = latestStartUpLog.buildinfo.versionArray;
+var versionArrayCleaned = [];
+for(var i in versionArray) if (versionArray[i] > 0) { versionArrayCleaned.push(versionArray[i]); }
+
+assert.eq(serverStatus.version, latestStartUpLog.buildinfo.version, "Mongo version doesn't match that from ServerStatus");
+assert.eq(version, versionArrayCleaned.join('.'), "version doesn't match that from the versionArray");
+assert(["V8", "SpiderMonkey", "Unknown"].indexOf(latestStartUpLog.buildinfo.javascriptEngine) > -1);
+assert.eq(isMaster.maxBsonObjectSize, latestStartUpLog.buildinfo.maxBsonObjectSize, "maxBsonObjectSize doesn't match one from ismaster");