from __future__ import division
import unittest
from monitor import Env, DetailProcess, ProcessCounter, Sandbox
import monitor
import os
class TestMonitorServer(unittest.TestCase):
	
	def test_Environment(self):
		"""
			This test case is designed to test the existance of a resource set as an environment variable. This applies to files, folders (not values)
		"""
		p = Env()
		p.init(['PATH','HOME','SHELL'])
		r = p.composite()
		value = r['value']
		
		self.assertTrue(value > 0 and value == 2/3)
		self.assertTrue(p.evaluate('PATH') == 0)
	def test_RunningProcess(self):
		p = DetailProcess()
		p.init(['kate','firefox']) #['rabbitmq-server','python','apache2','firefox'])
		r = p.composite()
		self.assertTrue(r)
	
	def test_ProcessCount(self):
		p= ProcessCounter()
		p.init(['foo','apache2','VBoxClient','rabbitmq-server','python'])
		r = p.composite()
		
		self.assertTrue( sum(r.values()) > 0 )
		self.assertTrue( r['foo'] == 0)
	def test_VirtualEnv(self):
		requirements_path = os.sep.join([os.environ['PYTHONPATH'],"..","requirements.txt"])
		sandbox_path	= os.sep.join([os.environ['PYTHONPATH'],"..",'sandbox'])
		p	= Sandbox()
		p.init({"sandbox":sandbox_path,"requirements":requirements_path})
		p.composite()
	def test_map(self):
		p = DetailProcess()
		p.init(['rabbitmq-server','python','apache2'])
		r ={"test": p.composite()}
		logs = [r,{"x-test":p.composite()}]
		key = "test"
		id = "memory_usage"
		
		def mapper(row,emit):
			[emit(item['label'],item) for item in row ]
		def reducer(values):
			end = len(values)-1
			beg = 0 if end < 100 else end - 100
			return values[beg:]
				
			
		#def reducer(values):
		
		mrh = monitor.mapreducer()
		logs = mrh.filter('test',logs)
		
		print mrh.run(logs,mapper,None)
		
if __name__ == '__main__' :
	unittest.main()