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run_tests.py
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run_tests.py
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#!/usr/bin/env python
# This code is part of the Biopython distribution and governed by its
# license. Please see the LICENSE file that should have been included
# as part of this package.
"""Run a set of PyUnit-based regression tests.
This will find all modules whose name is "test_*.py" in the test
directory, and run them. Various command line options provide
additional facilities.
Command line options:
--help -- show usage info
--offline -- skip tests which require internet access
-g;--generate -- write the output file for a test instead of comparing it.
The name of the test to write the output for must be
specified.
-v;--verbose -- run tests with higher verbosity (does not affect our
print-and-compare style unit tests).
<test_name> -- supply the name of one (or more) tests to be run.
The .py file extension is optional.
doctest -- run the docstring tests.
By default, all tests are run.
"""
# The default verbosity (not verbose)
VERBOSITY = 0
# standard modules
import sys
import cStringIO
import os
import re
import getopt
import time
import traceback
import unittest
import doctest
import distutils.util
# This is the list of modules containing docstring tests.
# If you develop docstring tests for other modules, please add
# those modules here.
DOCTEST_MODULES = ["Bio.Alphabet",
"Bio.Application",
"Bio.Seq",
"Bio.SeqFeature",
"Bio.SeqRecord",
"Bio.SeqIO",
"Bio.SeqIO.AceIO",
"Bio.SeqIO.PhdIO",
"Bio.SeqIO.QualityIO",
"Bio.SeqIO.SffIO",
"Bio.SeqUtils",
"Bio.Sequencing.Applications._Novoalign",
"Bio.Align",
"Bio.Align.Generic",
"Bio.Align.Applications._Clustalw",
"Bio.Align.Applications._Mafft",
"Bio.Align.Applications._Muscle",
"Bio.Align.Applications._Probcons",
"Bio.Align.Applications._Prank",
"Bio.Align.Applications._TCoffee",
"Bio.AlignIO",
"Bio.AlignIO.StockholmIO",
"Bio.Blast.Applications",
"Bio.Clustalw",
"Bio.Emboss.Applications",
"Bio.KEGG.Compound",
"Bio.KEGG.Enzyme",
"Bio.Wise",
"Bio.Wise.psw",
"Bio.Motif",
]
#Silently ignore any doctests for modules requiring numpy!
try:
import numpy
DOCTEST_MODULES.extend(["Bio.Statistics.lowess",
"Bio.PDB.Polypeptide",
])
except ImportError:
pass
try:
import sqlite3
del sqlite3
except ImportError:
#Missing on Jython or Python 2.4
DOCTEST_MODULES.remove("Bio.SeqIO")
#Skip Bio.Seq doctest under Python 3, see http://bugs.python.org/issue7490
if sys.version_info[0] == 3:
DOCTEST_MODULES.remove("Bio.Seq")
system_lang = os.environ.get('LANG', 'C') #Cache this
def main(argv):
"""Run tests, return number of failures (integer)."""
# insert our paths in sys.path:
# ../build/lib.*
# ..
# Q. Why this order?
# A. To find the C modules (which are in ../build/lib.*/Bio)
# Q. Then, why ".."?
# A. Because Martel may not be in ../build/lib.*
test_path = sys.path[0] or "."
source_path = os.path.abspath("%s/.." % test_path)
sys.path.insert(1, source_path)
build_path = os.path.abspath("%s/../build/lib.%s-%s" % (
test_path, distutils.util.get_platform(), sys.version[:3]))
if os.access(build_path, os.F_OK):
sys.path.insert(1, build_path)
# Using "export LANG=C" (which should work on Linux and similar) can
# avoid problems detecting optional command line tools on
# non-English OS (we may want 'command not found' in English).
# HOWEVER, we do not want to change the default encoding which is
# rather important on Python 3 with unicode.
#lang = os.environ['LANG']
# get the command line options
try:
opts, args = getopt.getopt(argv, 'gv', ["generate", "verbose",
"doctest", "help", "offline"])
except getopt.error, msg:
print msg
print __doc__
return 2
verbosity = VERBOSITY
# deal with the options
for o, a in opts:
if o == "--help":
print __doc__
return 0
if o == "--offline":
print "Skipping any tests requiring internet access"
#This is a bit of a hack...
import requires_internet
requires_internet.check.available = False
#The check() function should now report internet not available
if o == "-g" or o == "--generate":
if len(args) > 1:
print "Only one argument (the test name) needed for generate"
print __doc__
return 2
elif len(args) == 0:
print "No test name specified to generate output for."
print __doc__
return 2
# strip off .py if it was included
if args[0][-3:] == ".py":
args[0] = args[0][:-3]
test = ComparisonTestCase(args[0])
test.generate_output()
return 0
if o == "-v" or o == "--verbose":
verbosity = 2
# deal with the arguments, which should be names of tests to run
for arg_num in range(len(args)):
# strip off the .py if it was included
if args[arg_num][-3:] == ".py":
args[arg_num] = args[arg_num][:-3]
print "Python version:", sys.version
print "Operating system:", os.name, sys.platform
# run the tests
runner = TestRunner(args, verbosity)
return runner.run()
class ComparisonTestCase(unittest.TestCase):
"""Run a print-and-compare test and compare its output against expected output.
"""
def __init__(self, name, output=None):
"""Initialize with the test to run.
Arguments:
o name - The name of the test. The expected output should be
stored in the file output/name.
o output - The output that was generated when this test was run.
"""
unittest.TestCase.__init__(self)
self.name = name
self.output = output
def shortDescription(self):
return self.name
def runTest(self):
# check the expected output to be consistent with what
# we generated
outputdir = os.path.join(TestRunner.testdir, "output")
outputfile = os.path.join(outputdir, self.name)
try:
if sys.version_info[0] >= 3:
#Python 3 problem: Can't use utf8 on output/test_geo
#due to micro (\xb5) and degrees (\xb0) symbols
expected = open(outputfile, encoding="latin")
else:
expected = open(outputfile, 'rU')
except IOError:
self.fail("Warning: Can't open %s for test %s" % (outputfile, self.name))
self.output.seek(0)
# first check that we are dealing with the right output
# the first line of the output file is the test name
expected_test = expected.readline().strip()
assert expected_test == self.name, "\nOutput: %s\nExpected: %s" % \
(self.name, expected_test)
# now loop through the output and compare it to the expected file
while True:
expected_line = expected.readline()
output_line = self.output.readline()
# stop looping if either of the info handles reach the end
if not(expected_line) or not(output_line):
# make sure both have no information left
assert expected_line == '', "Unread: %s" % expected_line
assert output_line == '', "Extra output: %s" % output_line
break
# normalize the newlines in the two lines
expected_line = expected_line.strip("\r\n")
output_line = output_line.strip("\r\n")
# if the line is a doctest or PyUnit time output like:
# Ran 2 tests in 0.285s
# ignore it, so we don't have problems with different running times
if re.compile("^Ran [0-9]+ tests? in ").match(expected_line):
pass
# otherwise make sure the two lines are the same
else:
assert expected_line == output_line, \
"\nOutput : %s\nExpected: %s" \
% (repr(output_line), repr(expected_line))
expected.close()
def generate_output(self):
"""Generate the golden output for the specified test.
"""
outputdir = os.path.join(TestRunner.testdir, "output")
outputfile = os.path.join(outputdir, self.name)
output_handle = open(outputfile, 'w')
# write the test name as the first line of the output
output_handle.write(self.name + "\n")
# remember standard out so we can reset it after we are done
save_stdout = sys.stdout
try:
# write the output from the test into a string
sys.stdout = output_handle
__import__(self.name)
finally:
output_handle.close()
# return standard out to its normal setting
sys.stdout = save_stdout
class TestRunner(unittest.TextTestRunner):
if __name__ == '__main__':
file = sys.argv[0]
else:
file = __file__
testdir = os.path.dirname(file) or os.curdir
def __init__(self, tests=[], verbosity=0):
# if no tests were specified to run, we run them all
# including the doctests
self.tests = tests
if not self.tests:
# Make a list of all applicable test modules.
names = os.listdir(TestRunner.testdir)
for name in names:
if name[:5] == "test_" and name[-3:] == ".py":
self.tests.append(name[:-3])
self.tests.sort()
self.tests.append("doctest")
if "doctest" in self.tests:
self.tests.remove("doctest")
self.tests.extend(DOCTEST_MODULES)
stream = cStringIO.StringIO()
unittest.TextTestRunner.__init__(self, stream,
verbosity=verbosity)
def runTest(self, name):
from Bio import MissingExternalDependencyError
result = self._makeResult()
output = cStringIO.StringIO()
# Restore the language and thus default encoding (in case a prior
# test changed this, e.g. to help with detecting command line tools)
global system_lang
os.environ['LANG']=system_lang
# Note the current directory:
cur_dir = os.path.abspath(".")
# Run the actual test inside a try/except to catch import errors.
# Have to do a nested try because try/except/except/finally requires
# python 2.5+
try:
try:
stdout = sys.stdout
sys.stdout = output
if name.startswith("test_"):
sys.stderr.write("%s ... " % name)
#It's either a unittest or a print-and-compare test
suite = unittest.TestLoader().loadTestsFromName(name)
if suite.countTestCases()==0:
# This is a print-and-compare test instead of a
# unittest-type test.
test = ComparisonTestCase(name, output)
suite = unittest.TestSuite([test])
else:
#It's a doc test
sys.stderr.write("%s docstring test ... " % name)
#Can't use fromlist=name.split(".") until python 2.5+
module = __import__(name, None, None, name.split("."))
suite = doctest.DocTestSuite(module)
del module
suite.run(result)
if cur_dir != os.path.abspath("."):
sys.stderr.write("FAIL\n")
result.stream.write(result.separator1+"\n")
result.stream.write("ERROR: %s\n" % name)
result.stream.write(result.separator2+"\n")
result.stream.write("Current directory changed\n")
result.stream.write("Was: %s\n" % cur_dir)
result.stream.write("Now: %s\n" % os.path.abspath("."))
os.chdir(cur_dir)
if not result.wasSuccessful():
result.printErrors()
return False
elif result.wasSuccessful():
sys.stderr.write("ok\n")
return True
else:
sys.stderr.write("FAIL\n")
result.printErrors()
return False
except MissingExternalDependencyError, msg:
sys.stderr.write("skipping. %s\n" % msg)
return True
except Exception, msg:
# This happened during the import
sys.stderr.write("ERROR\n")
result.stream.write(result.separator1+"\n")
result.stream.write("ERROR: %s\n" % name)
result.stream.write(result.separator2+"\n")
result.stream.write(traceback.format_exc())
return False
except KeyboardInterrupt, err:
# Want to allow this, and abort the test
# (see below for special case)
raise err
except:
# This happens in Jython with java.lang.ClassFormatError:
# Invalid method Code length ...
sys.stderr.write("ERROR\n")
result.stream.write(result.separator1+"\n")
result.stream.write("ERROR: %s\n" % name)
result.stream.write(result.separator2+"\n")
result.stream.write(traceback.format_exc())
return False
finally:
sys.stdout = stdout
def run(self):
"""Run tests, return number of failures (integer)."""
failures = 0
startTime = time.time()
for test in self.tests:
ok = self.runTest(test)
if not ok:
failures += 1
total = len(self.tests)
stopTime = time.time()
timeTaken = stopTime - startTime
sys.stderr.write(self.stream.getvalue())
sys.stderr.write('-' * 70 + "\n")
sys.stderr.write("Ran %d test%s in %.3f seconds\n" %
(total, total != 1 and "s" or "", timeTaken))
sys.stderr.write("\n")
if failures:
sys.stderr.write("FAILED (failures = %d)\n" % failures)
return failures
if __name__ == "__main__":
errors = main(sys.argv[1:])
if errors:
#Doing a sys.exit(...) isn't nice if run from IDLE...
sys.exit(1)