class test_ramdisk(GenericRamdiskTest):
"""
"""
@classmethod
def setUpClass(self):
"""
Initializer
"""
# Start timer in miliseconds
self.test_start_time = datetime.now()
#self.message_level = "debug"
self.message_level = "debug"
self.libcPath = None # initial initialization
self.subdirs = ["two", "three" "one/four"]
"""
Set up a ramdisk and use that random location as a root to test the
filesystem functionality of what is being tested.
"""
#Calculate size of ramdisk to make for this unit test.
size_in_mb = 1800
ramdisk_size = size = size_in_mb
self.mnt_pnt_requested = ""
self.logger = CyLogger()
self.success = False
self.mountPoint = False
self.ramdiskDev = False
self.mnt_pnt_requested = False
# get a ramdisk of appropriate size, with a secure random mountpoint
self.my_ramdisk = RamDisk(str(ramdisk_size),
self.mnt_pnt_requested,
self.message_level)
(self.success, self.mountPoint, self.ramdiskDev) = self.my_ramdisk.getData()
if self.success:
self.logger.log(lp.INFO, "::::::::Ramdisk Mount Point: " + str(self.mountPoint))
self.logger.log(lp.INFO, "::::::::Ramdisk Device : " + str(self.ramdiskDev))
else:
raise IOError("Cannot get a ramdisk for some reason. . .")
#####
# Create a temp location on disk to run benchmark tests against
self.fs_dir = tempfile.mkdtemp()
def setUp(self):
"""
This method runs before each test run.
@author: Roy Nielsen
"""
self.libcPath = None # initial initialization
#####
# setting up to call ctypes to do a filesystem sync
if sys.platform.startswith("darwin"):
#####
# For Mac
self.libc = C.CDLL("/usr/lib/libc.dylib")
elif sys.platform.startswith("linux"):
#####
# For Linux
self.findLinuxLibC()
self.libc = C.CDLL(self.libcPath)
else:
self.libc = self._pass()
###############################################################################
##### Helper Methods
###############################################################################
##### Method Tests
##################################
def test_init(self):
"""
"""
pass
##################################
def test_get_data(self):
"""
"""
pass
##################################
def test_getRandomizedMountpoint(self):
"""
"""
pass
##################################
def test_create(self):
"""
"""
pass
##################################
def test_mount(self):
"""
"""
pass
##################################
def test_attach(self):
"""
"""
pass
##################################
def test_remove_journal(self):
"""
"""
pass
##################################
def test_unmount(self):
"""
"""
pass
##################################
def test_eject(self):
"""
"""
pass
##################################
def test_format(self):
"""
"""
pass
##################################
def test_partition(self):
"""
"""
pass
##################################
def test_isMemoryAvailable(self):
"""
"""
pass
##################################
def test_runcmd(self):
"""
"""
pass
##################################
def test_getDevice(self):
"""
"""
pass
##################################
def test_setDevice(self):
"""
"""
pass
##################################
def test_getVersion(self):
"""
"""
pass
##################################
def test_detach(self):
"""
"""
pass
###############################################################################
##### Functional Tests
##################################
def test_files_n_dirs(self):
"""
Should work when files exist in ramdisk.
"""
# Do file setup for this test
for subdir in self.subdirs:
dirpath = self.mountPoint + "/" + subdir
self.logger.log(lp.DEBUG, "DIRPATH: : " + str(dirpath))
self.mkdirs(dirpath)
self.touch(dirpath + "/" + "test")
# Do the tests
for subdir in self.subdirs:
# CANNOT use os.path.join this way. os.path.join cannot deal with
# absolute directories. May work with mounting ramdisk in local
# relative directories.
self.assertTrue(os.path.exists(self.mountPoint + "/" + subdir + "/" + "test"))
##################################
def test_four_file_sizes(self):
"""
Test file creation of various sizes, ramdisk vs. filesystem
"""
#####
# Clean up the ramdisk
self.my_ramdisk._format()
#####
# 100Mb file size
oneHundred = 100
#####
# 100Mb file size
twoHundred = 200
#####
# 500Mb file size
fiveHundred = 500
#####
# 1Gb file size
oneGig = 1000
my_fs_array = [oneHundred, twoHundred, fiveHundred, oneGig]
time.sleep(1)
for file_size in my_fs_array:
self.logger.log(lp.DEBUG, "testfile size: " + str(file_size))
#####
# Create filesystem file and capture the time it takes...
fs_time = self.mkfile(os.path.join(self.fs_dir, "testfile"), file_size)
self.logger.log(lp.DEBUG, "fs_time: " + str(fs_time))
time.sleep(1)
#####
# get the time it takes to create the file in ramdisk...
ram_time = self.mkfile(os.path.join(self.mountPoint, "testfile"), file_size)
self.logger.log(lp.DEBUG, "ram_time: " + str(ram_time))
time.sleep(1)
speed = fs_time - ram_time
self.logger.log(lp.DEBUG, "ramdisk: " + str(speed) + " faster...")
self.assertTrue((fs_time - ram_time).days>-1)
def test_many_small_files_creation(self):
"""
"""
#####
# Clean up the ramdisk
self.my_ramdisk._format()
#####
#
ramdisk_starttime = datetime.now()
for i in range(1000):
self.mkfile(os.path.join(self.mountPoint, "testfile" + str(i)), 1)
ramdisk_endtime = datetime.now()
rtime = ramdisk_endtime - ramdisk_starttime
fs_starttime = datetime.now()
for i in range(1000):
self.mkfile(os.path.join(self.fs_dir, "testfile" + str(i)), 1)
fsdisk_endtime = datetime.now()
fstime = fsdisk_endtime - fs_starttime
self.assertTrue((fstime - rtime).days > -11)
###############################################################################
##### unittest Tear down
@classmethod
def tearDownClass(self):
"""
disconnect ramdisk
"""
if self.my_ramdisk.unmount():
self.logger.log(lp.INFO, r"Successfully detached disk: " + \
str(self.my_ramdisk.mntPoint).strip())
else:
self.logger.log(lp.WARNING, r"Couldn't detach disk: " + \
str(self.my_ramdisk.myRamdiskDev).strip() + \
" : mntpnt: " + str(self.my_ramdisk.mntPoint))
raise Exception(r"Cannot eject disk: " + \
str(self.my_ramdisk.myRamdiskDev).strip() + \
" : mntpnt: " + str(self.my_ramdisk.mntPoint))
#####
# capture end time
test_end_time = datetime.now()
#####
# Calculate and log how long it took...
test_time = (test_end_time - self.test_start_time)
self.logger.log(lp.INFO, self.__module__ + " took " + str(test_time) + \
" time to complete...")
class test_ramdisk(GenericRamdiskTest):
''' '''
@classmethod
def setUpClass(self):
'''Initializer'''
# Start timer in miliseconds
self.test_start_time = datetime.now()
#self.message_level = "debug"
self.message_level = "debug"
self.libcPath = None # initial initialization
self.subdirs = ["two", "three" "one/four"]
"""
Set up a ramdisk and use that random location as a root to test the
filesystem functionality of what is being tested.
"""
#Calculate size of ramdisk to make for this unit test.
size_in_mb = 1800
ramdisk_size = size = size_in_mb
self.mnt_pnt_requested = ""
self.logger = CyLogger()
self.success = False
self.mountPoint = False
self.ramdiskDev = False
self.mnt_pnt_requested = False
# get a ramdisk of appropriate size, with a secure random mountpoint
self.my_ramdisk = RamDisk(str(ramdisk_size),
self.mnt_pnt_requested,
self.message_level)
(self.success, self.mountPoint, self.ramdiskDev) = self.my_ramdisk.getData()
if self.success:
self.logger.log(lp.INFO, "::::::::Ramdisk Mount Point: " + str(self.mountPoint))
self.logger.log(lp.INFO, "::::::::Ramdisk Device : " + str(self.ramdiskDev))
else:
raise IOError("Cannot get a ramdisk for some reason. . .")
#####
# Create a temp location on disk to run benchmark tests against
self.fs_dir = tempfile.mkdtemp()
def setUp(self):
'''This method runs before each test run.
@author: Roy Nielsen
'''
self.libcPath = None # initial initialization
#####
# setting up to call ctypes to do a filesystem sync
if sys.platform.startswith("darwin"):
#####
# For Mac
self.libc = C.CDLL("/usr/lib/libc.dylib")
elif sys.platform.startswith("linux"):
#####
# For Linux
self.findLinuxLibC()
self.libc = C.CDLL(self.libcPath)
else:
self.libc = self._pass()
###############################################################################
##### Helper Methods
###############################################################################
##### Method Tests
##################################
def test_init(self):
''' '''
pass
##################################
def test_get_data(self):
''' '''
pass
##################################
def test_getRandomizedMountpoint(self):
''' '''
pass
##################################
def test_create(self):
''' '''
pass
##################################
def test_mount(self):
''' '''
pass
##################################
def test_attach(self):
''' '''
pass
##################################
def test_remove_journal(self):
''' '''
pass
##################################
def test_unmount(self):
''' '''
pass
##################################
def test_eject(self):
''' '''
pass
##################################
def test_format(self):
''' '''
pass
##################################
def test_partition(self):
''' '''
pass
##################################
def test_isMemoryAvailable(self):
''' '''
pass
##################################
def test_runcmd(self):
''' '''
pass
##################################
def test_getDevice(self):
''' '''
pass
##################################
def test_setDevice(self):
''' '''
pass
##################################
def test_getVersion(self):
''' '''
pass
##################################
def test_detach(self):
''' '''
pass
###############################################################################
##### Functional Tests
##################################
def test_files_n_dirs(self):
'''Should work when files exist in ramdisk.'''
# Do file setup for this test
for subdir in self.subdirs:
dirpath = self.mountPoint + "/" + subdir
self.logger.log(lp.DEBUG, "DIRPATH: : " + str(dirpath))
self.mkdirs(dirpath)
self.touch(dirpath + "/" + "test")
# Do the tests
for subdir in self.subdirs:
# CANNOT use os.path.join this way. os.path.join cannot deal with
# absolute directories. May work with mounting ramdisk in local
# relative directories.
self.assertTrue(os.path.exists(self.mountPoint + "/" + subdir + "/" + "test"))
##################################
def test_four_file_sizes(self):
'''Test file creation of various sizes, ramdisk vs. filesystem'''
#####
# Clean up the ramdisk
self.my_ramdisk._format()
#####
# 100Mb file size
oneHundred = 100
#####
# 100Mb file size
twoHundred = 200
#####
# 500Mb file size
fiveHundred = 500
#####
# 1Gb file size
oneGig = 1000
my_fs_array = [oneHundred, twoHundred, fiveHundred, oneGig]
time.sleep(1)
for file_size in my_fs_array:
self.logger.log(lp.DEBUG, "testfile size: " + str(file_size))
#####
# Create filesystem file and capture the time it takes...
fs_time = self.mkfile(os.path.join(self.fs_dir, "testfile"), file_size)
self.logger.log(lp.DEBUG, "fs_time: " + str(fs_time))
time.sleep(1)
#####
# get the time it takes to create the file in ramdisk...
ram_time = self.mkfile(os.path.join(self.mountPoint, "testfile"), file_size)
self.logger.log(lp.DEBUG, "ram_time: " + str(ram_time))
time.sleep(1)
speed = fs_time - ram_time
self.logger.log(lp.DEBUG, "ramdisk: " + str(speed) + " faster...")
self.assertTrue((fs_time - ram_time).days>-1)
def test_many_small_files_creation(self):
''' '''
#####
# Clean up the ramdisk
self.my_ramdisk._format()
#####
#
ramdisk_starttime = datetime.now()
for i in range(1000):
self.mkfile(os.path.join(self.mountPoint, "testfile" + str(i)), 1)
ramdisk_endtime = datetime.now()
rtime = ramdisk_endtime - ramdisk_starttime
fs_starttime = datetime.now()
for i in range(1000):
self.mkfile(os.path.join(self.fs_dir, "testfile" + str(i)), 1)
fsdisk_endtime = datetime.now()
fstime = fsdisk_endtime - fs_starttime
self.assertTrue((fstime - rtime).days > -11)
###############################################################################
##### unittest Tear down
@classmethod
def tearDownClass(self):
'''disconnect ramdisk'''
if self.my_ramdisk.unmount():
self.logger.log(lp.INFO, r"Successfully detached disk: " + \
str(self.my_ramdisk.mntPoint).strip())
else:
self.logger.log(lp.WARNING, r"Couldn't detach disk: " + \
str(self.my_ramdisk.myRamdiskDev).strip() + \
" : mntpnt: " + str(self.my_ramdisk.mntPoint))
raise Exception(r"Cannot eject disk: " + \
str(self.my_ramdisk.myRamdiskDev).strip() + \
" : mntpnt: " + str(self.my_ramdisk.mntPoint))
#####
# capture end time
test_end_time = datetime.now()
#####
# Calculate and log how long it took...
test_time = (test_end_time - self.test_start_time)
self.logger.log(lp.INFO, self.__module__ + " took " + str(test_time) + \
" time to complete...")
class GenericRamdiskTest(unittest.TestCase, GenericTestUtilities):
"""
Holds helper methods. DO NOT create an init
Inspiration for using classmethod:
http://simeonfranklin.com/testing2.pdf
@author: Roy Nielsen
"""
@classmethod
def setUpClass(self):
"""
"""
#self.getLibc()
self.subdirs = ["two", "three" "one/four"]
self.logger = CyLogger()
self.logger.log(lp.CRITICAL, "Logger initialized............................")
"""
Set up a ramdisk and use that random location as a root to test the
filesystem functionality of what is being tested.
"""
#Calculate size of ramdisk to make for this unit test.
size_in_mb = 1800
ramdisk_size = size = size_in_mb
self.mnt_pnt_requested = ""
self.success = False
self.mountPoint = False
self.ramdiskDev = False
self.mnt_pnt_requested = False
# get a ramdisk of appropriate size, with a secure random mountpoint
self.my_ramdisk = RamDisk(size=str(ramdisk_size), logger=self.logger)
(self.success, self.mountPoint, self.ramdiskDev) = self.my_ramdisk.getData()
self.mount = self.mountPoint
self.logger.log(lp.INFO, "::::::::Ramdisk Mount Point: " + str(self.mountPoint))
self.logger.log(lp.INFO, "::::::::Ramdisk Device : " + str(self.ramdiskDev))
if not self.success:
raise IOError("Cannot get a ramdisk for some reason. . .")
#####
# Create a temp location on disk to run benchmark tests against
self.fs_dir = tempfile.mkdtemp()
# Start timer in miliseconds
self.test_start_time = datetime.now()
self.setUpInstanceSpecifics()
@classmethod
def setUpInstanceSpecifics(self):
"""
Call the child class setUpClass initializer, if possible..
Here to be over-ridden by a child class.
@author: Roy Nielsen
"""
pass
################################################
##### Helper Methods
def _unloadRamdisk(self):
"""
"""
if self.my_ramdisk.unmount():
self.logger.log(lp.INFO, r"Successfully detached disk: " + \
str(self.my_ramdisk.mntPoint).strip())
else:
self.logger.log(lp.WARNING, r"Couldn't detach disk: " + \
str(self.my_ramdisk.myRamdiskDev).strip() + \
" : mntpnt: " + str(self.my_ramdisk.mntPoint))
raise Exception(r"Cannot eject disk: " + \
str(self.my_ramdisk.myRamdiskDev).strip() + \
" : mntpnt: " + str(self.my_ramdisk.mntPoint))
###############################################################################
##### Functional Tests
##################################
def test_files_n_dirs(self):
"""
Should work when files exist in ramdisk.
"""
# Do file setup for this test
for subdir in self.subdirs:
dirpath = self.mountPoint + "/" + subdir
self.logger.log(lp.DEBUG, "DIRPATH: : " + str(dirpath))
self.mkdirs(dirpath)
self.touch(dirpath + "/" + "test")
# Do the tests
for subdir in self.subdirs:
# CANNOT use os.path.join this way. os.path.join cannot deal with
# absolute directories. May work with mounting ramdisk in local
# relative directories.
self.assertTrue(os.path.exists(self.mountPoint + "/" + subdir + "/" + "test"), "Problem with ramdisk...")
##################################
def test_four_file_sizes(self):
"""
Test file creation of various sizes, ramdisk vs. filesystem
"""
#####
# Clean up the ramdisk
self.my_ramdisk._format()
#####
# 100Mb file size
oneHundred = 100
#####
# 100Mb file size
twoHundred = 200
#####
# 500Mb file size
fiveHundred = 500
#####
# 1Gb file size
oneGig = 1000
my_fs_array = [oneHundred, twoHundred, fiveHundred, oneGig]
for file_size in my_fs_array:
self.logger.log(lp.INFO, "testfile size: " + str(file_size))
#####
# Create filesystem file and capture the time it takes...
fs_time = self.mkfile(os.path.join(self.fs_dir, "testfile"), file_size)
self.logger.log(lp.INFO, "fs_time: " + str(fs_time))
#####
# get the time it takes to create the file in ramdisk...
ram_time = self.mkfile(os.path.join(self.mountPoint, "testfile"), file_size)
self.logger.log(lp.INFO, "ram_time: " + str(ram_time))
speed = fs_time - ram_time
self.logger.log(lp.INFO, "ramdisk: " + str(speed) + " faster...")
self.assertTrue((fs_time - ram_time).days > -1, "Problem with ramdisk...")
##################################
def test_many_small_files_creation(self):
"""
"""
#####
# Clean up the ramdisk
self.my_ramdisk._format()
#####
#
ramdisk_starttime = datetime.now()
for i in range(1000):
self.mkfile(os.path.join(self.mountPoint, "testfile" + str(i)), 1)
ramdisk_endtime = datetime.now()
rtime = ramdisk_endtime - ramdisk_starttime
fs_starttime = datetime.now()
for i in range(1000):
self.mkfile(os.path.join(self.fs_dir, "testfile" + str(i)), 1)
fsdisk_endtime = datetime.now()
fstime = fsdisk_endtime - fs_starttime
self.assertTrue((fstime - rtime).days > -1, "Problem with ramdisk...")
##################################
@classmethod
def tearDownInstanceSpecifics(self):
"""
Skeleton method in case a child class wants/needs to override it.
@author: Roy Nielsen
"""
pass
@classmethod
def tearDownClass(self):
"""
"""
self.tearDownInstanceSpecifics()
if unmount(self.mount):
self.logger.log(lp.INFO, r"Successfully detached disk: " + \
str(self.my_ramdisk.mntPoint).strip())
else:
self.logger.log(lp.WARNING, r"Couldn't detach disk: " + \
str(self.my_ramdisk.myRamdiskDev).strip() + \
" : mntpnt: " + str(self.my_ramdisk.mntPoint))
raise Exception(r"Cannot eject disk: " + \
str(self.my_ramdisk.myRamdiskDev).strip() + \
" : mntpnt: " + str(self.my_ramdisk.mntPoint))
#####
# capture end time
test_end_time = datetime.now()
#####
# Calculate and log how long it took...
test_time = (test_end_time - self.test_start_time)
self.logger.log(lp.INFO, self.__module__ + " took " + str(test_time) + \
" time to complete...")
class RamDiskFactory(object):
"""
Retrieve and OS specific ramdisk, and provide an interface to manage it.
Keeps a reference to a list of ramdisks. When calling getRamdisk(new), if
"new" is true, the method will add the ramdisk to the list of ramdisks.
@parameter message_level: Level of logging a person wishes to log at.
see logMessage in the log_message module.
@method: getRamdisk: Will return either a new ramdisk, or make the
self.activeRamdisk the ramdisk with the name of the
passed in mountpoint (if found). Otherwise, the
self.activeRamdisk is initialized to None.
@method getModuleVersion: gets the version of this module.
@method unmountActiveRamdisk: Unmounts the active ramdisk.
@method unmountRamdisk: Unmounts the mountpoint that is passed in.
@author: Roy Nielsen
"""
def __init__(self, logger=None):
"""
Identify OS and instantiate an instance of a ramdisk
"""
self.module_version = '20160224.203258.288119'
self.size = 0
self.mountpoint = None
self.ramdiskType = None
if not logger:
self.logger = CyLogger()
else:
self.logger = logger
self.activeRamdisk = None
self.ramdisks = []
self.validRamdiskTypes = ["loop", "tmpfs"]
self.validOSFamilies = ["macos", "linux"]
self.myosfamily = getOsFamily()
if not self.myosfamily in self.validOSFamilies:
raise OSNotValidForRamdiskHelper("Needs to be MacOS or Linux...")
############################################################################
def getRamdisk(self, size=0, mountpoint="", ramdiskType=""):
"""
Getter for the ramdisk instance.
@var: ramdisks - a list of ramdisks this factory has created
@param: size - size of the ramdisk to create. If zero, it looks for
@author: Roy Nielsen
"""
if not ramdiskType in self.validRamdiskTypes:
raise BadRamdiskTypeException("Not a valid ramdisk type")
if size and mountpoint and ramdiskType:
#####
# Determine OS and ramdisk type, create ramdisk accordingly
if self.myosfamily == "darwin":
#####
# Found MacOS
from macRamdisk import RamDisk
self.activeRamdisk = RamDisk(size, mountpoint, self.logger)
elif self.myosfamily == "linux" and ramdiskType == "loop":
#####
# Found Linux with a loopback ramdisk request
from linuxLoopRamdisk import RamDisk
self.activeRamdisk = RamDisk(mountpoint, self.logger)
elif self.myosfamily == "linux" and ramdiskType == "tmpfs":
#####
# Found Linux with a tmpfs ramdisk request.
from linuxTmpfsRamdisk import RamDisk
self.activeRamdisk = RamDisk(size, mountpoint, self.logger)
else:
#####
# Bad method input parameters...
self.activeRamdisk = None
#####
# Append the newly assigned self.activeRamdisk to the self.ramdisks
# list
self.ramdisks.append(self.activeRamdisk)
elif not size and mountpoint:
#####
# Look for the ramdisk with "mountpoint" and return that instance.
for ramdisk in self.ramdisks:
if re.match("^%s$" % mountpoint, ramdisk.getMountPoint()):
self.activeRamdisk = ramdisk
break
return self.activeRamdisk
############################################################################
def getModuleVersion(self):
"""
Getter for the version of this module.
@author: Roy Nielsen
"""
return self.module_version
############################################################################
def unmountActiveRamdisk(self):
"""
Eject the currently active ramdisk in the Factory.
@return: success - successful = True, unsuccessful = False
@author: Roy Nielsen
"""
success = False
success = self.activeRamdisk.unmount(self.logger)
return success
############################################################################
def unmountRamdisk(self, mountpoint=""):
"""
Eject the ramdisk in the list with the passed in mountpoint.
@param mountpoint: the mountpoint to eject.
@return: True if successful, False if not successful
@author: Roy Nielsen
"""
success = False
if mountpoint:
for ramdisk in self.ramdisks:
if re.match("^%s$" % mountpoint, ramdisk.getMountPoint()):
self.activeRamdisk = ramdisk
success = self.unmountActiveRamdisk()
break
return success
class GenericRamdiskTest(unittest.TestCase, GenericTestUtilities):
'''Holds helper methods. DO NOT create an init
Inspiration for using classmethod:
http://simeonfranklin.com/testing2.pdf
@author: Roy Nielsen
'''
@classmethod
def setUpClass(self):
''' '''
#self.getLibc()
self.subdirs = ["two", "three" "one/four"]
self.logger = CyLogger()
self.logger.log(lp.CRITICAL,
"Logger initialized............................")
"""
Set up a ramdisk and use that random location as a root to test the
filesystem functionality of what is being tested.
"""
#Calculate size of ramdisk to make for this unit test.
size_in_mb = 1800
ramdisk_size = size = size_in_mb
self.mnt_pnt_requested = ""
self.success = False
self.mountPoint = False
self.ramdiskDev = False
self.mnt_pnt_requested = False
# get a ramdisk of appropriate size, with a secure random mountpoint
self.my_ramdisk = RamDisk(size=str(ramdisk_size), logger=self.logger)
(self.success, self.mountPoint,
self.ramdiskDev) = self.my_ramdisk.getData()
self.mount = self.mountPoint
self.logger.log(lp.INFO,
"::::::::Ramdisk Mount Point: " + str(self.mountPoint))
self.logger.log(lp.INFO,
"::::::::Ramdisk Device : " + str(self.ramdiskDev))
if not self.success:
raise IOError("Cannot get a ramdisk for some reason. . .")
#####
# Create a temp location on disk to run benchmark tests against
self.fs_dir = tempfile.mkdtemp()
# Start timer in miliseconds
self.test_start_time = datetime.now()
self.setUpInstanceSpecifics()
@classmethod
def setUpInstanceSpecifics(self):
'''Call the child class setUpClass initializer, if possible..
Here to be over-ridden by a child class.
@author: Roy Nielsen
'''
pass
################################################
##### Helper Methods
def _unloadRamdisk(self):
''' '''
if self.my_ramdisk.unmount():
self.logger.log(lp.INFO, r"Successfully detached disk: " + \
str(self.my_ramdisk.mntPoint).strip())
else:
self.logger.log(lp.WARNING, r"Couldn't detach disk: " + \
str(self.my_ramdisk.myRamdiskDev).strip() + \
" : mntpnt: " + str(self.my_ramdisk.mntPoint))
raise Exception(r"Cannot eject disk: " + \
str(self.my_ramdisk.myRamdiskDev).strip() + \
" : mntpnt: " + str(self.my_ramdisk.mntPoint))
###############################################################################
##### Functional Tests
##################################
def test_files_n_dirs(self):
'''Should work when files exist in ramdisk.'''
# Do file setup for this test
for subdir in self.subdirs:
dirpath = self.mountPoint + "/" + subdir
self.logger.log(lp.DEBUG, "DIRPATH: : " + str(dirpath))
self.mkdirs(dirpath)
self.touch(dirpath + "/" + "test")
# Do the tests
for subdir in self.subdirs:
# CANNOT use os.path.join this way. os.path.join cannot deal with
# absolute directories. May work with mounting ramdisk in local
# relative directories.
self.assertTrue(
os.path.exists(self.mountPoint + "/" + subdir + "/" + "test"),
"Problem with ramdisk...")
##################################
def test_four_file_sizes(self):
'''Test file creation of various sizes, ramdisk vs. filesystem'''
#####
# Clean up the ramdisk
self.my_ramdisk._format()
#####
# 100Mb file size
oneHundred = 100
#####
# 100Mb file size
twoHundred = 200
#####
# 500Mb file size
fiveHundred = 500
#####
# 1Gb file size
oneGig = 1000
my_fs_array = [oneHundred, twoHundred, fiveHundred, oneGig]
for file_size in my_fs_array:
self.logger.log(lp.INFO, "testfile size: " + str(file_size))
#####
# Create filesystem file and capture the time it takes...
fs_time = self.mkfile(os.path.join(self.fs_dir, "testfile"),
file_size)
self.logger.log(lp.INFO, "fs_time: " + str(fs_time))
#####
# get the time it takes to create the file in ramdisk...
ram_time = self.mkfile(os.path.join(self.mountPoint, "testfile"),
file_size)
self.logger.log(lp.INFO, "ram_time: " + str(ram_time))
speed = fs_time - ram_time
self.logger.log(lp.INFO, "ramdisk: " + str(speed) + " faster...")
self.assertTrue((fs_time - ram_time).days > -1,
"Problem with ramdisk...")
##################################
def test_many_small_files_creation(self):
''' '''
#####
# Clean up the ramdisk
self.my_ramdisk._format()
#####
#
ramdisk_starttime = datetime.now()
for i in range(1000):
self.mkfile(os.path.join(self.mountPoint, "testfile" + str(i)), 1)
ramdisk_endtime = datetime.now()
rtime = ramdisk_endtime - ramdisk_starttime
fs_starttime = datetime.now()
for i in range(1000):
self.mkfile(os.path.join(self.fs_dir, "testfile" + str(i)), 1)
fsdisk_endtime = datetime.now()
fstime = fsdisk_endtime - fs_starttime
self.assertTrue((fstime - rtime).days > -1, "Problem with ramdisk...")
##################################
@classmethod
def tearDownInstanceSpecifics(self):
'''Skeleton method in case a child class wants/needs to override it.
@author: Roy Nielsen
'''
pass
@classmethod
def tearDownClass(self):
''' '''
self.tearDownInstanceSpecifics()
if unmount(self.mount):
self.logger.log(lp.INFO, r"Successfully detached disk: " + \
str(self.my_ramdisk.mntPoint).strip())
else:
self.logger.log(lp.WARNING, r"Couldn't detach disk: " + \
str(self.my_ramdisk.myRamdiskDev).strip() + \
" : mntpnt: " + str(self.my_ramdisk.mntPoint))
raise Exception(r"Cannot eject disk: " + \
str(self.my_ramdisk.myRamdiskDev).strip() + \
" : mntpnt: " + str(self.my_ramdisk.mntPoint))
#####
# capture end time
test_end_time = datetime.now()
#####
# Calculate and log how long it took...
test_time = (test_end_time - self.test_start_time)
self.logger.log(lp.INFO, self.__module__ + " took " + str(test_time) + \
" time to complete...")