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1 """
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2 nose plugin for easy testing of django projects and apps. Sets up a test
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3 database (or schema) and installs apps from test settings file before tests
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4 are run, and tears the test database (or schema) down after all tests are run.
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5 """
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6 __author = 'Jason Pellerin'
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7 __version__ = '0.1'
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8
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9 import atexit
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10 import logging
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11 import os, sys
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12 import re
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13
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14 from nose.plugins import Plugin
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15 import nose.case
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16
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17 # Force settings.py pointer
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18 # search the current working directory and all parent directories to find
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19 # the settings file
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20 from nose.importer import add_path
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21 os.environ['DJANGO_SETTINGS_MODULE'] = 'settings'
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22 def get_SETTINGS_PATH():
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23 cwd = os.getcwd()
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24 while cwd:
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25 if 'settings.py' in os.listdir(cwd):
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26 break
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27 cwd = os.path.split(cwd)[0]
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28 if cwd == '/':
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29 return None
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30 return cwd
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31 SETTINGS_PATH = get_SETTINGS_PATH()
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32
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33 log = logging.getLogger('nose.plugins.nosedjango')
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34
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35 class NoseDjango(Plugin):
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36 """
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37 Enable to set up django test environment before running all tests, and
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38 tear it down after all tests. If the django database engine in use is not
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39 sqlite3, one or both of --django-test-db or django-test-schema must be
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40 specified.
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41
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42 Note that your django project must be on PYTHONPATH for the settings file
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43 to be loaded. The plugin will help out by placing the nose working dir
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44 into sys.path if it isn't already there, unless the -P
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45 (--no-path-adjustment) argument is set.
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46 """
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47 name = 'django'
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48
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49 def configure(self, options, conf):
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50 Plugin.configure(self, options, conf)
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51 self.verbosity = conf.verbosity
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52
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53 def begin(self):
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54 """Create the test database and schema, if needed, and switch the
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55 connection over to that database. Then call install() to install
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56 all apps listed in the loaded settings module.
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57 """
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58 # Add the working directory (and any package parents) to sys.path
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59 # before trying to import django modules; otherwise, they won't be
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60 # able to find project.settings if the working dir is project/ or
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61 # project/..
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62
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63 if not SETTINGS_PATH:
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64 sys.stderr.write("Can't find Django settings file!\n")
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65 # short circuit if no settings file can be found
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66 return
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67
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68 if self.conf.addPaths:
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69 map(add_path, self.conf.where)
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70
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71 add_path(SETTINGS_PATH)
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72 sys.path.append(SETTINGS_PATH)
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73 import settings
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74 settings.DEBUG = False # I have no idea why Django does this, but it does
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75 from django.core import mail
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76 self.mail = mail
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77 from django.conf import settings
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78 from django.core import management
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79 from django.test.utils import setup_test_environment
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80 from django.db import connection
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81
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82 self.old_db = settings.DATABASE_NAME
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83
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84 # setup the test env for each test case
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85 setup_test_environment()
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86 connection.creation.create_test_db(verbosity=self.verbosity)
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87
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88 # exit the setup phase and let nose do it's thing
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89
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90 def beforeTest(self, test):
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91
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92 if not SETTINGS_PATH:
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93 # short circuit if no settings file can be found
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94 return
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95
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96 from django.core.management import call_command
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97 call_command('flush', verbosity=0, interactive=False)
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98
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99 if isinstance(test, nose.case.Test) and \
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100 isinstance(test.test, nose.case.MethodTestCase) and \
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101 hasattr(test.context, 'fixtures'):
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102 # We have to use this slightly awkward syntax due to the fact
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103 # that we're using *args and **kwargs together.
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104 call_command('loaddata', *test.context.fixtures, **{'verbosity': 0})
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105 self.mail.outbox = []
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106
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107 def finalize(self, result=None):
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108 """
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109 Clean up any created database and schema.
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110 """
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111 if not SETTINGS_PATH:
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112 # short circuit if no settings file can be found
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113 return
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114
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115 from django.test.utils import teardown_test_environment
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116 from django.db import connection
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117 connection.creation.destroy_test_db(self.old_db, verbosity=self.verbosity)
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118 teardown_test_environment()
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