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Minimal Go like testing in Python
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import inspect | |
import sys | |
import time | |
import traceback | |
def objects(x): | |
return (getattr(x, n) for n in dir(x)) | |
def isTest(obj): | |
return inspect.isfunction(obj) and obj.__name__.startswith("test") and \ | |
len(inspect.signature(obj).parameters) == 0 | |
def collectTests(mod): | |
return [obj for obj in objects(mod) if isTest(obj)] | |
def dur(start, end): | |
return '({:.02f}s)'.format(end - start) | |
def formatException(ex): | |
info = traceback.extract_tb(sys.exc_info()[-1])[-1] | |
name, msg = ex.__class__.__name__, str(ex) | |
if name == "AssertionError" and msg == "": # no assert args? use expr | |
msg = info.line.strip()[7:] | |
return "{}:{}: {}: {}".format(info.filename, info.lineno, name, msg) | |
def p(fmt, *args): | |
print(fmt.format(*args)) | |
def main(): | |
try: | |
assert False | |
print("Assertions must be enabled in tests") | |
sys.exit(1) | |
except AssertionError: | |
pass | |
mod = inspect.getmodule(inspect.stack()[1][0]) | |
verbose = "-v" in sys.argv | |
failed = False | |
mstart = time.time() | |
for test in collectTests(mod): | |
name = test.__name__ | |
try: | |
if verbose: | |
p("=== RUN {}", name) | |
start = time.time() | |
test() | |
end = time.time() | |
if verbose: | |
p("--- PASS: {} {}", name, dur(start, end)) | |
except Exception as ex: | |
end = time.time() | |
p("--- FAIL: {} {}", name, dur(start, end)) | |
p(" {}", formatException(ex)) | |
failed = True | |
mend = time.time() | |
if failed: | |
p("FAIL\t{}\t{}", mod.__file__, dur(mstart, mend)) | |
sys.exit(1) | |
p("ok\t{}\t{}", mod.__file__, dur(mstart, mend)) |
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