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import hotshot
import hotshot.log
import os
import pprint
import unittest
from test import test_support
from hotshot.log import ENTER, EXIT, LINE
def shortfilename(fn):
# We use a really shortened filename since an exact match is made,
# and the source may be either a Python source file or a
# pre-compiled bytecode file.
if fn:
return os.path.splitext(os.path.basename(fn))[0]
else:
return fn
class UnlinkingLogReader(hotshot.log.LogReader):
"""Extend the LogReader so the log file is unlinked when we're
done with it."""
def __init__(self, logfn):
self.__logfn = logfn
hotshot.log.LogReader.__init__(self, logfn)
def next(self, index=None):
try:
return hotshot.log.LogReader.next(self)
except StopIteration:
self.close()
os.unlink(self.__logfn)
raise
class HotShotTestCase(unittest.TestCase):
def new_profiler(self, lineevents=0, linetimings=1):
self.logfn = test_support.TESTFN
return hotshot.Profile(self.logfn, lineevents, linetimings)
def get_logreader(self):
return UnlinkingLogReader(self.logfn)
def get_events_wotime(self):
L = []
for event in self.get_logreader():
what, (filename, lineno, funcname), tdelta = event
L.append((what, (shortfilename(filename), lineno, funcname)))
return L
def check_events(self, expected):
events = self.get_events_wotime()
if events != expected:
self.fail(
"events did not match expectation; got:\n%s\nexpected:\n%s"
% (pprint.pformat(events), pprint.pformat(expected)))
def run_test(self, callable, events, profiler=None):
if profiler is None:
profiler = self.new_profiler()
self.failUnless(not profiler._prof.closed)
profiler.runcall(callable)
self.failUnless(not profiler._prof.closed)
profiler.close()
self.failUnless(profiler._prof.closed)
self.check_events(events)
def test_addinfo(self):
def f(p):
p.addinfo("test-key", "test-value")
profiler = self.new_profiler()
profiler.runcall(f, profiler)
profiler.close()
log = self.get_logreader()
info = log._info
list(log)
self.failUnless(info["test-key"] == ["test-value"])
def test_line_numbers(self):
def f():
y = 2
x = 1
def g():
f()
f_lineno = f.func_code.co_firstlineno
g_lineno = g.func_code.co_firstlineno
events = [(ENTER, ("test_hotshot", g_lineno, "g")),
(LINE, ("test_hotshot", g_lineno+1, "g")),
(ENTER, ("test_hotshot", f_lineno, "f")),
(LINE, ("test_hotshot", f_lineno+1, "f")),
(LINE, ("test_hotshot", f_lineno+2, "f")),
(EXIT, ("test_hotshot", f_lineno, "f")),
(EXIT, ("test_hotshot", g_lineno, "g")),
]
self.run_test(g, events, self.new_profiler(lineevents=1))
def test_start_stop(self):
# Make sure we don't return NULL in the start() and stop()
# methods when there isn't an error. Bug in 2.2 noted by
# Anthony Baxter.
profiler = self.new_profiler()
profiler.start()
profiler.stop()
profiler.close()
os.unlink(self.logfn)
def test_main():
test_support.run_unittest(HotShotTestCase)
if __name__ == "__main__":
test_main()
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