def test_clock_running(fake_time):
c = util.Clock()
c.start("total")
fake_time.value += 3
c.start("read")
fake_time.value += 4
c.stop("read")
assert str(c) == "[total=7.000000/1, read=4.000000/1]"
def test_clock_run(fake_time):
c = util.Clock()
with c.run("total"):
with c.run("a"):
fake_time.value += 4
with c.run("b"):
fake_time.value += 3
assert str(c) == "[total=7.000000/1, a=4.000000/1, b=3.000000/1]"
def test_clock_stop_returns_elapsed_time(fake_time):
c = util.Clock()
c.start("read")
fake_time.value += 1
assert c.stop("read") == 1
c.start("read")
fake_time.value += 2
assert c.stop("read") == 2
def test_benchmark():
c = util.Clock()
c.start("connection")
# We have seen 66,000 requests per single upload with virt-v2v.
for i in range(50000):
c.start("request")
c.start("read")
c.stop("read")
c.start("write")
c.stop("write")
c.stop("request")
c.stop("connection")
print(c)
def test_clock_measure(fake_time):
c = util.Clock()
c.start("total")
c.start("read")
fake_time.value += 1
c.stop("read")
c.start("write")
fake_time.value += 1
c.stop("write")
c.start("sync")
fake_time.value += 1
c.stop("sync")
c.stop("total")
assert str(c) == (
"[total=3.000000/1, read=1.000000/1, write=1.000000/1, "
"sync=1.000000/1]")
def test_clock_run_recursive():
c = util.Clock()
with c.run("started"):
with pytest.raises(RuntimeError):
with c.run("started"):
pass
def test_clock_stop_missing():
c = util.Clock()
with pytest.raises(RuntimeError):
c.stop("missing")
def test_clock_stop_twice():
c = util.Clock()
c.start("stopped")
c.stop("stopped")
with pytest.raises(RuntimeError):
c.stop("stopped")
def test_clock_empty():
c = util.Clock()
assert str(c) == "[]"
