import unittest
from commontest import *
from statistics import *

class StatsObjTest(unittest.TestCase):
	"""Test StatsObj class"""
	def set_obj(self, s):
		"""Set values of s's statistics"""
		s.SourceFiles = 1
		s.SourceFileSize = 2
		s.MirrorFiles = 13
		s.MirrorFileSize = 14
		s.NewFiles = 3
		s.NewFileSize = 4
		s.DeletedFiles = 5
		s.DeletedFileSize = 6
		s.ChangedFiles = 7
		s.ChangedSourceSize = 8
		s.ChangedMirrorSize = 9
		s.IncrementFiles = 15
		s.IncrementFileSize = 10
		s.StartTime = 11
		s.EndTime = 12

	def test_get_stats(self):
		"""Test reading and writing stat objects"""
		s = StatsObj()
		assert s.get_stat('SourceFiles') is None
		self.set_obj(s)
		assert s.get_stat('SourceFiles') == 1

		s1 = StatsITRB()
		assert s1.get_stat('SourceFiles') == 0

	def test_get_stats_string(self):
		"""Test conversion of stat object into string"""
		s = StatsObj()
		stats_string = s.get_stats_string()
		assert stats_string == "", stats_string

		self.set_obj(s)
		stats_string = s.get_stats_string()
		assert stats_string == \
"""StartTime 11.00 (Wed Dec 31 16:00:11 1969)
EndTime 12.00 (Wed Dec 31 16:00:12 1969)
ElapsedTime 1.00 (1 second)
SourceFiles 1
SourceFileSize 2 (2 bytes)
MirrorFiles 13
MirrorFileSize 14 (14 bytes)
NewFiles 3
NewFileSize 4 (4 bytes)
DeletedFiles 5
DeletedFileSize 6 (6 bytes)
ChangedFiles 7
ChangedSourceSize 8 (8 bytes)
ChangedMirrorSize 9 (9 bytes)
IncrementFiles 15
IncrementFileSize 10 (10 bytes)
TotalDestinationSizeChange 7 (7 bytes)
""", "'%s'" % stats_string

	def test_line_string(self):
		"""Test conversion to a single line"""
		s = StatsObj()
		self.set_obj(s)
		statline = s.get_stats_line(("sample", "index", "w", "new\nline"))
		assert statline == "sample/index/w/new\\nline 1 2 13 14 " \
			   "3 4 5 6 7 8 9 15 10", repr(statline)

		statline = s.get_stats_line(())
		assert statline == ". 1 2 13 14 3 4 5 6 7 8 9 15 10"

		statline = s.get_stats_line(("file name with spaces",))
		assert statline == "file\\x20name\\x20with\\x20spaces 1 2 13 14 " \
			   "3 4 5 6 7 8 9 15 10", repr(statline)

	def test_byte_summary(self):
		"""Test conversion of bytes to strings like 7.23MB"""
		s = StatsObj()
		f = s.get_byte_summary_string
		assert f(1) == "1 byte"
		assert f(234.34) == "234 bytes"
		assert f(2048) == "2.00 KB"
		assert f(3502243) == "3.34 MB"
		assert f(314992230) == "300 MB"
		assert f(36874871216) == "34.3 GB", f(36874871216)
		assert f(3775986812573450) == "3434 TB"

	def test_init_stats(self):
		"""Test setting stat object from string"""
		s = StatsObj()
		s.set_stats_from_string("NewFiles 3 hello there")
		for attr in s.stat_attrs:
			if attr == 'NewFiles': assert s.get_stat(attr) == 3
			else: assert s.get_stat(attr) is None, (attr, s.__dict__[attr])

		s1 = StatsObj()
		self.set_obj(s1)
		assert not s1.stats_equal(s)

		s2 = StatsObj()
		s2.set_stats_from_string(s1.get_stats_string())
		assert s1.stats_equal(s2)

	def test_write_rp(self):
		"""Test reading and writing of statistics object"""
		rp = RPath(Globals.local_connection, "testfiles/statstest")
		if rp.lstat(): rp.delete()
		s = StatsObj()
		self.set_obj(s)
		s.write_stats_to_rp(rp)

		s2 = StatsObj()
		assert not s2.stats_equal(s)
		s2.read_stats_from_rp(rp)
		assert s2.stats_equal(s)

	def testAverage(self):
		"""Test making an average statsobj"""
		s1 = StatsObj()
		s1.StartTime = 5
		s1.EndTime = 10
		s1.ElapsedTime = 5
		s1.ChangedFiles = 2
		s1.SourceFiles = 100
		s1.NewFileSize = 4

		s2 = StatsObj()
		s2.StartTime = 25
		s2.EndTime = 35
		s2.ElapsedTime = 10
		s2.ChangedFiles = 1
		s2.SourceFiles = 50
		s2.DeletedFiles = 0

		s3 = StatsObj().set_to_average([s1, s2])
		assert s3.StartTime is s3.EndTime is None
		assert s3.ElapsedTime == 7.5
		assert s3.DeletedFiles is s3.NewFileSize is None, (s3.DeletedFiles,
														   s3.NewFileSize)
		assert s3.ChangedFiles == 1.5
		assert s3.SourceFiles == 75


if __name__ == "__main__": unittest.main()