def testCorrectness(rows,istoken): color = colors.bcolors() if safetyTest(rows,istoken) == True: print (color.OKGREEN+'Safety Test Passed!!!') else: print (color.FAIL+'Safety Test Failed!!!') if livelinessTest(rows) == True: print (color.OKGREEN + 'Liveliness Test Passed!!!') else: print (color.WARNING + 'Liveliness Test Failed!!!') if fairnessTest(rows) == True: print (color.OKGREEN + 'Fairness Test Passed!!!') else: print (color.WARNING + 'Fairness Test Failed!!!') print (color.ENDC)
def fairnessTest(rows):
""" This function tests if the processes are being served in a fair way. The one who is waiting for long time
must be given priority over others(FIFO)"""
queue = []
flag = True
color = colors.bcolors()
for row in rows:
if row[1] != 'None':
queue.append(row[1])
continue
if row[2] != 'None' and queue[0] != row[2]:
print (color.WARNING + "Process " + str(row[2]) + "jumped ahead of the queue. Fairness violated at " + str(row[0]) )
return False
elif row[2] != 'None':
queue.remove(row[2])
return True
"\q": "Disconnect from the server and quit akdb client.",
"\?": "List all commands supported in akdb.",
"\d <table_name>": "Prints out table details",
"\p <table_name>": "Prints out table",
"\\t <table_name>?": "Check whether the given table exists in database or not.",
"create sequence <sequence_name> <sql_expression>": "Creating sequence in AK_sequence table",
"create table <table_name> <sql_expression>": "Create table",
"create index <index_name> <sql_expression>": "Create index",
"create trigger <trigger_name> <sql_expression>": "Create trigger",
"select <sql_expression>": "Select data from table",
"update <sql_expression>": "Update table",
"history": "List all previously typed commands.",
}
##instantiate the colours class
bcolors = colors.bcolors()
##define data
ip = "localhost"
port = 1998
buffer_size = 1024
class AK_Console(cmd.Cmd):
cli = None
##Initialization of the console. Sets up the prompt and
# a welcome note.
def __init__(self):
cmd.Cmd.__init__(self)
self.prompt = "akdb>"
'\d <table_name>': 'Prints out table details',
'\p <table_name>': 'Prints out table',
'\\t <table_name>?':
'Check whether the given table exists in database or not.',
'create sequence <sequence_name> <sql_expression>':
'Creating sequence in AK_sequence table',
'create table <table_name> <sql_expression>': 'Create table',
'create index <index_name> <sql_expression>': 'Create index',
'create trigger <trigger_name> <sql_expression>': 'Create trigger',
'select <sql_expression>': 'Select data from table',
'update <sql_expression>': 'Update table',
'history': 'List all previously typed commands.'
}
##instantiate the colours class
bcolors = colors.bcolors()
##define data
ip = "localhost"
port = 1998
buffer_size = 1024
class AK_Console(cmd.Cmd):
cli = None
##Initialization of the console. Sets up the prompt and
#a welcome note.
def __init__(self):
cmd.Cmd.__init__(self)
self.prompt = "akdb>"
