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from rpython.rtyper.test.tool import BaseRtypingTest
from rpython.rtyper.lltypesystem import lltype, rffi
from rpython.rlib import rtime
import time, sys, py
class TestTime(BaseRtypingTest):
def test_time_time(self):
def fn():
return time.time()
t0 = time.time()
res0 = self.interpret(fn, [])
t1 = time.time()
res1 = self.interpret(fn, [])
assert t0 <= res0 <= t1 <= res1
def test_time_clock(self):
def sleep(t):
# a version of time.sleep() that consumes actual CPU time
start = time.clock()
while abs(time.clock() - start) <= t:
pass
def f():
return time.clock()
t0 = time.clock()
sleep(0.011)
t1 = self.interpret(f, [])
sleep(0.011)
t2 = time.clock()
sleep(0.011)
t3 = self.interpret(f, [])
sleep(0.011)
t4 = time.clock()
sleep(0.011)
t5 = self.interpret(f, [])
sleep(0.011)
t6 = time.clock()
# time.clock() and t1() might have a different notion of zero, so
# we can only subtract two numbers returned by the same function.
# Moreover they might have different precisions, but it should
# be at least 0.01 seconds, hence the "sleeps".
assert 0.0099 <= t2-t0 <= 9.0
assert 0.0099 <= t3-t1 <= t4-t0 <= 9.0
assert 0.0099 <= t4-t2 <= t5-t1 <= t6-t0 <= 9.0
assert 0.0099 <= t5-t3 <= t6-t2 <= 9.0
assert 0.0099 <= t6-t4 <= 9.0
def test_time_sleep(self):
def does_nothing():
time.sleep(0.19)
t0 = time.time()
self.interpret(does_nothing, [])
t1 = time.time()
assert t0 <= t1
assert t1 - t0 >= 0.15
def test_clock_gettime(self):
if not rtime.HAS_CLOCK_GETTIME:
py.test.skip("no clock_gettime()")
lst = []
for i in range(50):
with lltype.scoped_alloc(rtime.TIMESPEC) as a1:
res = rtime.c_clock_gettime(rtime.CLOCK_MONOTONIC, a1)
assert res == 0
t = (float(rffi.getintfield(a1, 'c_tv_sec')) +
float(rffi.getintfield(a1, 'c_tv_nsec')) * 0.000000001)
lst.append(t)
assert lst == sorted(lst)
def test_clock_getres(self):
if not rtime.HAS_CLOCK_GETTIME:
py.test.skip("no clock_gettime()")
lst = []
with lltype.scoped_alloc(rtime.TIMESPEC) as a1:
res = rtime.c_clock_getres(rtime.CLOCK_MONOTONIC, a1)
assert res == 0
t = (float(rffi.getintfield(a1, 'c_tv_sec')) +
float(rffi.getintfield(a1, 'c_tv_nsec')) * 0.000000001)
assert 0.0 < t <= 1.0
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