2005-07-29 23:15:40 +08:00
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#!/usr/bin/env python
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import os, sys, time, traceback
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# doctest is included in the same package as this module, because this testing
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# framework uses features only available in the Python 2.4 version of doctest,
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# and Django aims to work with Python 2.3+.
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import doctest
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APP_NAME = 'testapp'
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TEST_DATABASE_NAME = 'django_test_db'
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error_list = []
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def log_error(model_name, title, description):
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error_list.append({
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'title': "%r model: %s" % (model_name, title),
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'description': description,
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})
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class DjangoDoctestRunner(doctest.DocTestRunner):
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def __init__(self, verbosity_level, *args, **kwargs):
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self.verbosity_level = verbosity_level
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doctest.DocTestRunner.__init__(self, *args, **kwargs)
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def report_start(self, out, test, example):
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if self.verbosity_level > 1:
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out(" >>> %s\n" % example.source.strip())
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def report_failure(self, out, test, example, got):
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log_error(test.name, "API test failed",
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"Code: %r\nLine: %s\nExpected: %r\nGot: %r" % (example.source.strip(), example.lineno, example.want, got))
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def report_unexpected_exception(self, out, test, example, exc_info):
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tb = ''.join(traceback.format_exception(*exc_info)[1:])
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log_error(test.name, "API test raised an exception",
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"Code: %r\nLine: %s\nException: %s" % (example.source.strip(), example.lineno, tb))
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class TestRunner:
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def __init__(self, verbosity_level=0):
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self.verbosity_level = verbosity_level
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def output(self, required_level, message):
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if self.verbosity_level > required_level - 1:
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print message
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def run_tests(self):
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from django.conf import settings
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from django.core.db import db
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from django.core import management
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# Manually set INSTALLED_APPS to point to the test app.
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settings.INSTALLED_APPS = (APP_NAME,)
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2005-07-30 03:22:50 +08:00
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# If we're using SQLite, it's more convient to test against an in-memory database
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if settings.DATABASE_ENGINE == "sqlite3":
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global TEST_DATABASE_NAME
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TEST_DATABASE_NAME = ":memory:"
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else:
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# Create the test database and connect to it. We need autocommit() because
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# PostgreSQL doesn't allow CREATE DATABASE statements within transactions.
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cursor = db.cursor()
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try:
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db.connection.autocommit()
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except AttributeError:
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pass
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self.output(1, "Creating test database")
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try:
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2005-07-29 23:15:40 +08:00
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cursor.execute("CREATE DATABASE %s" % TEST_DATABASE_NAME)
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2005-07-30 03:22:50 +08:00
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except:
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confirm = raw_input("The test database, %s, already exists. Type 'yes' to delete it, or 'no' to cancel: " % TEST_DATABASE_NAME)
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if confirm == 'yes':
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cursor.execute("DROP DATABASE %s" % TEST_DATABASE_NAME)
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cursor.execute("CREATE DATABASE %s" % TEST_DATABASE_NAME)
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else:
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print "Tests cancelled."
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return
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2005-07-29 23:15:40 +08:00
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db.close()
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old_database_name = settings.DATABASE_NAME
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settings.DATABASE_NAME = TEST_DATABASE_NAME
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# Initialize the test database.
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cursor = db.cursor()
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self.output(1, "Initializing test database")
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management.init()
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# Run the tests for each model within APP_NAME/models.
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model_dir = os.path.join(os.path.dirname(__file__), APP_NAME, 'models')
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test_models = [f[:-3] for f in os.listdir(model_dir) if f.endswith('.py') and not f.startswith('__init__')]
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for model_name in test_models:
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self.output(1, "%s model: Importing" % model_name)
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try:
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mod = __import__(APP_NAME + '.models.' + model_name, '', '', [''])
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except Exception, e:
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log_error(model_name, "Error while importing", ''.join(traceback.format_exception(*sys.exc_info())[1:]))
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continue
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self.output(1, "%s model: Installing" % model_name)
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management.install(mod)
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# Run the API tests.
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p = doctest.DocTestParser()
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test_namespace = dict([(m._meta.module_name, getattr(mod, m._meta.module_name)) for m in mod._MODELS])
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dtest = p.get_doctest(mod.API_TESTS, test_namespace, model_name, None, None)
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# Manually set verbose=False, because "-v" command-line parameter
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# has side effects on doctest TestRunner class.
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runner = DjangoDoctestRunner(verbosity_level=verbosity_level, verbose=False)
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self.output(1, "%s model: Running tests" % model_name)
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runner.run(dtest, clear_globs=True, out=sys.stdout.write)
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2005-07-30 03:22:50 +08:00
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# Unless we're using SQLite, remove the test database, to clean up after
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# ourselves. Connect to the previous database (not the test database)
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# to do so, because it's not allowed to delete a database while being
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# connected to it.
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if settings.DATABASE_ENGINE != "sqlite3":
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db.close()
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settings.DATABASE_NAME = old_database_name
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cursor = db.cursor()
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self.output(1, "Deleting test database")
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try:
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db.connection.autocommit()
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except AttributeError:
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pass
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else:
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time.sleep(1) # To avoid "database is being accessed by other users" errors.
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cursor.execute("DROP DATABASE %s" % TEST_DATABASE_NAME)
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2005-07-29 23:15:40 +08:00
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# Display output.
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if error_list:
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print "Got %s error%s:" % (len(error_list), len(error_list) != 1 and 's' or '')
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for d in error_list:
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print
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print d['title']
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print "=" * len(d['title'])
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print d['description']
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else:
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print "All tests passed."
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if __name__ == "__main__":
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from optparse import OptionParser
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parser = OptionParser()
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parser.add_option('-v', help='How verbose should the output be? Choices are 0, 1 and 2, where 2 is most verbose. Default is 0.',
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type='choice', choices=['0', '1', '2'])
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options, args = parser.parse_args()
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verbosity_level = 0
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if options.v:
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verbosity_level = int(options.v)
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t = TestRunner(verbosity_level)
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t.run_tests()
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