1. Vladimir Mihailenco
  2. djangotoolbox


djangotoolbox / djangotoolbox / test.py

from .utils import object_list_to_table, equal_lists
from django.test import TestCase
from django.test.simple import DjangoTestSuiteRunner, DjangoTestRunner
import sys

    from StringIO import StringIO
except ImportError:
    from cStringIO import StringIO

class ModelTestCase(TestCase):
    A test case for models that provides an easy way to validate the DB
    contents against a given list of row-values.

    You have to specify the model to validate using the 'model' attribute:
    class MyTestCase(ModelTestCase):
        model = MyModel
    def validate_state(self, columns, *state_table):
        Validates that the DB contains exactly the values given in the state
        table. The list of columns is given in the columns tuple.

            ('a', 'b', 'c'),
            (1, 2, 3),
            (11, 12, 13),
        validates that the table contains exactly two rows and that their
        'a', 'b', and 'c' attributes are 1, 2, 3 for one row and 11, 12, 13
        for the other row. The order of the rows doesn't matter.
        current_state = object_list_to_table(columns,
        if not equal_lists(current_state, state_table):
            print 'DB state not valid:'
            print 'Current state:'
            print columns
            for state in current_state:
                print state
            print 'Should be:'
            for state in state_table:
                print state
            self.fail('DB state not valid')

class CapturingTestRunner(DjangoTestRunner):
    def _makeResult(self):
        result = super(CapturingTestRunner, self)._makeResult()
        stdout = sys.stdout
        stderr = sys.stderr

        def extend_error(errors):
                captured_stdout = sys.stdout.getvalue()
                captured_stderr = sys.stderr.getvalue()
            except AttributeError:
                captured_stdout = captured_stderr = ''
            sys.stdout = stdout
            sys.stderr = stderr
            t, e = errors[-1]
            if captured_stdout:
                e += '\n--------------- Captured stdout: ---------------\n'
                e += captured_stdout
            if captured_stderr:
                e += '\n--------------- Captured stderr: ---------------\n'
                e += captured_stderr
            if captured_stdout or captured_stderr:
                e += '\n--------------- End captured output ---------------\n\n'
            errors[-1] = (t, e)

        def override(func):
            func.orig = getattr(result, func.__name__)
            setattr(result, func.__name__, func)
            return func

        def startTest(test):
            sys.stdout = StringIO()
            sys.stderr = StringIO()

        def addSuccess(test):
            sys.stdout = stdout
            sys.stderr = stderr

        def addError(test, err):
            addError.orig(test, err)

        def addFailure(test, err):
            addFailure.orig(test, err)

        return result

class CapturingTestSuiteRunner(DjangoTestSuiteRunner):
    def run_suite(self, suite, **kwargs):
        return CapturingTestRunner(verbosity=self.verbosity, failfast=self.failfast).run(suite)