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test_tools.py
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'''Tests the tools and utilities in pulsar.utils.'''
import unittest
from datetime import datetime, date
from pulsar.api import get_actor
from pulsar.utils import system
from pulsar.utils.tools import checkarity, nice_number, date2timestamp
from pulsar.utils.importer import py_file, import_modules
from pulsar.apps.test import sequential
def f0(a, b):
pass
def f0_discount(request, a, b):
pass
def f1(a, b=0):
pass
def f2(a, **kwargs):
# This fails curretly
pass
def arity_check(func, *args, **kwargs):
discount = kwargs.pop('discount', 0)
return checkarity(func, args, kwargs, discount=discount)
class TestArityCheck(unittest.TestCase):
def testArity0(self):
self.assertEqual(arity_check(f0, 3, 4), None)
self.assertEqual(arity_check(f0, 3),
'"f0" takes 2 parameters. 1 given.')
self.assertEqual(arity_check(f0),
'"f0" takes 2 parameters. 0 given.')
self.assertEqual(arity_check(f0, 4, 5, 6),
'"f0" takes 2 parameters. 3 given.')
self.assertEqual(arity_check(f0, a=3, b=5), None)
self.assertEqual(arity_check(f0, a=3, c=5),
'"f0" has missing "b" parameter.')
self.assertEqual(arity_check(f0, a=3, c=5, d=6),
'"f0" takes 2 parameters. 3 given.')
def testArity0WidthDiscount(self):
f0 = f0_discount
fname = f0.__name__
self.assertEqual(arity_check(f0, 3, 4, discount=1), None)
self.assertEqual(arity_check(f0, 3, discount=1),
'"%s" takes 2 parameters. 1 given.' % fname)
self.assertEqual(arity_check(f0, discount=1),
'"%s" takes 2 parameters. 0 given.' % fname)
self.assertEqual(arity_check(f0, 4, 5, 6, discount=1),
'"%s" takes 2 parameters. 3 given.' % fname)
self.assertEqual(arity_check(f0, a=3, b=5, discount=1), None)
self.assertEqual(arity_check(f0, a=3, c=5, discount=1),
'"%s" has missing "b" parameter.' % fname)
self.assertEqual(arity_check(f0, a=3, c=5, d=6, discount=1),
'"%s" takes 2 parameters. 3 given.' % fname)
def testArity1(self):
self.assertEqual(checkarity(f1, (3,), {}), None)
self.assertEqual(checkarity(f1, (3, 4), {}), None)
self.assertEqual(checkarity(f1, (), {}),
'"f1" takes at least 1 parameters. 0 given.')
self.assertEqual(checkarity(f1, (4, 5, 6), {}),
'"f1" takes at most 2 parameters. 3 given.')
self.assertEqual(checkarity(f1, (), {'a': 3, 'b': 5}), None)
self.assertEqual(checkarity(f1, (), {'a': 3, 'c': 5}),
'"f1" does not accept "c" parameter.')
self.assertEqual(checkarity(f1, (), {'a': 3, 'c': 5, 'd': 6}),
'"f1" takes at most 2 parameters. 3 given.')
def testArity2(self):
self.assertEqual(checkarity(f2, (3,), {}), None)
self.assertEqual(checkarity(f2, (3,), {'c': 4}), None)
self.assertEqual(checkarity(f2, (3, 4), {}),
'"f2" takes 1 positional parameters. 2 given.')
self.assertEqual(checkarity(f2, (), {}),
'"f2" takes at least 1 parameters. 0 given.')
self.assertEqual(checkarity(f2, (4, 5, 6), {}),
'"f2" takes 1 positional parameters. 3 given.')
self.assertEqual(checkarity(f2, (), {'a': 3, 'b': 5}), None)
self.assertEqual(checkarity(f2, (), {'a': 3, 'c': 5}), None)
self.assertEqual(checkarity(f2, (), {'b': 3, 'c': 5}),
'"f2" has missing "a" parameter.')
self.assertEqual(checkarity(f2, (), {'a': 3, 'c': 5, 'd': 6}), None)
class TestSystemInfo(unittest.TestCase):
def testMe(self):
worker = get_actor()
info = system.process_info(worker.pid)
system.process_info()
self.assertTrue(isinstance(info, dict))
# sequential decorator, just for coverage.
@sequential
class TestFunctions(unittest.TestCase):
def test_convert_bytes(self):
from pulsar.utils.system import convert_bytes
self.assertEqual(convert_bytes(None), '#NA')
self.assertEqual(convert_bytes(4), '4B')
self.assertEqual(convert_bytes(1024), '1.0KB')
self.assertEqual(convert_bytes(1024**2), '1.0MB')
self.assertEqual(convert_bytes(1024**3), '1.0GB')
self.assertEqual(convert_bytes(1024**4), '1.0TB')
self.assertEqual(convert_bytes(1024**5), '1.0PB')
self.assertEqual(convert_bytes(1024**6), '1.0EB')
self.assertEqual(convert_bytes(1024**7), '1.0ZB')
self.assertEqual(convert_bytes(1024**8), '1.0YB')
def test_nice_number(self):
self.assertEqual(nice_number(0), 'zero')
self.assertEqual(nice_number(1), 'one')
self.assertEqual(nice_number(2), 'two')
self.assertEqual(nice_number(1, 'bla'), 'one bla')
self.assertEqual(nice_number(10, 'bla'), 'ten blas')
self.assertEqual(nice_number(23, 'bla', 'blax'), 'twenty three blax')
def test_nice_number_large(self):
self.assertEqual(nice_number(100), 'one hundred')
self.assertEqual(nice_number(203), 'two hundred and three')
self.assertEqual(nice_number(4210),
'four thousand, two hundred and ten')
self.assertEqual(nice_number(51345618),
'fifty one million, three hundred forty five '
'thousand, six hundred and eighteen')
def test_py_file(self):
self.assertEqual(py_file('bla.py'), 'bla')
self.assertEqual(py_file('bla.pyc'), 'bla')
self.assertEqual(py_file('bla.pyd'), 'bla')
self.assertEqual(py_file('bla.pyo'), 'bla')
self.assertEqual(py_file('bla.exe'), None)
self.assertEqual(py_file('bla.foo.py'), None)
self.assertEqual(py_file('bla'), 'bla')
self.assertEqual(py_file('.bla'), None)
self.assertEqual(py_file('.'), None)
def __test_import_modules(self):
self.assertEqual(import_modules(['gggggggggggg']), [])
mods = import_modules(['pulsar.asynclib.*'])
self.assertTrue(mods)
def test_date2timestamp(self):
d1 = date.today()
v1 = date2timestamp(d1)
d2 = datetime.now()
v2 = date2timestamp(d2)
self.assertTrue(v2 > v1)
self.assertEqual(int(v1), v1)