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import time
from rpython.rlib.rtimer import read_timestamp
from rpython.rtyper.test.test_llinterp import interpret
from rpython.translator.c.test.test_genc import compile
def timer():
t1 = read_timestamp()
start = time.time()
while time.time() - start < 0.1:
# busy wait
pass
t2 = read_timestamp()
return t2 - t1
def test_timer():
diff = timer()
# We're counting ticks, verify they look correct
assert diff > 1000
def test_annotation():
diff = interpret(timer, [])
assert diff > 1000
def test_compile_c():
function = compile(timer, [])
diff = function()
assert diff > 1000
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