Da

✏️ Editing: test_program.py

import io

import os
import sys
import subprocess
from test import support
import unittest
import unittest.test
from unittest.test.test_result import BufferedWriter

class Test_TestProgram(unittest.TestCase):

def test_discovery_from_dotted_path(self):
        loader = unittest.TestLoader()

tests = [self]
        expectedPath = os.path.abspath(os.path.dirname(unittest.test.__file__))

self.wasRun = False
        def _find_tests(start_dir, pattern):
            self.wasRun = True
            self.assertEqual(start_dir, expectedPath)
            return tests
        loader._find_tests = _find_tests
        suite = loader.discover('unittest.test')
        self.assertTrue(self.wasRun)
        self.assertEqual(suite._tests, tests)

# Horrible white box test
    def testNoExit(self):
        result = object()
        test = object()

class FakeRunner(object):
            def run(self, test):
                self.test = test
                return result

runner = FakeRunner()

oldParseArgs = unittest.TestProgram.parseArgs
        def restoreParseArgs():
            unittest.TestProgram.parseArgs = oldParseArgs
        unittest.TestProgram.parseArgs = lambda *args: None
        self.addCleanup(restoreParseArgs)

def removeTest():
            del unittest.TestProgram.test
        unittest.TestProgram.test = test
        self.addCleanup(removeTest)

program = unittest.TestProgram(testRunner=runner, exit=False, verbosity=2)

self.assertEqual(program.result, result)
        self.assertEqual(runner.test, test)
        self.assertEqual(program.verbosity, 2)

class FooBar(unittest.TestCase):
        def testPass(self):
            pass
        def testFail(self):
            raise AssertionError

class FooBarLoader(unittest.TestLoader):
        """Test loader that returns a suite containing FooBar."""
        def loadTestsFromModule(self, module):
            return self.suiteClass(
                [self.loadTestsFromTestCase(Test_TestProgram.FooBar)])

def loadTestsFromNames(self, names, module):
            return self.suiteClass(
                [self.loadTestsFromTestCase(Test_TestProgram.FooBar)])

def test_defaultTest_with_string(self):
        class FakeRunner(object):
            def run(self, test):
                self.test = test
                return True

old_argv = sys.argv
        sys.argv = ['faketest']
        runner = FakeRunner()
        program = unittest.TestProgram(testRunner=runner, exit=False,
                                       defaultTest='unittest.test',
                                       testLoader=self.FooBarLoader())
        sys.argv = old_argv
        self.assertEqual(('unittest.test',), program.testNames)

def test_defaultTest_with_iterable(self):
        class FakeRunner(object):
            def run(self, test):
                self.test = test
                return True

old_argv = sys.argv
        sys.argv = ['faketest']
        runner = FakeRunner()
        program = unittest.TestProgram(
            testRunner=runner, exit=False,
            defaultTest=['unittest.test', 'unittest.test2'],
            testLoader=self.FooBarLoader())
        sys.argv = old_argv
        self.assertEqual(['unittest.test', 'unittest.test2'],
                          program.testNames)

def test_NonExit(self):
        stream = BufferedWriter()
        program = unittest.main(exit=False,
                                argv=["foobar"],
                                testRunner=unittest.TextTestRunner(stream=stream),
                                testLoader=self.FooBarLoader())
        self.assertTrue(hasattr(program, 'result'))
        self.assertIn('\nFAIL: testFail ', stream.getvalue())
        self.assertTrue(stream.getvalue().endswith('\n\nFAILED (failures=1)\n'))

def test_Exit(self):
        stream = BufferedWriter()
        self.assertRaises(
            SystemExit,
            unittest.main,
            argv=["foobar"],
            testRunner=unittest.TextTestRunner(stream=stream),
            exit=True,
            testLoader=self.FooBarLoader())
        self.assertIn('\nFAIL: testFail ', stream.getvalue())
        self.assertTrue(stream.getvalue().endswith('\n\nFAILED (failures=1)\n'))

def test_ExitAsDefault(self):
        stream = BufferedWriter()
        self.assertRaises(
            SystemExit,
            unittest.main,
            argv=["foobar"],
            testRunner=unittest.TextTestRunner(stream=stream),
            testLoader=self.FooBarLoader())
        self.assertIn('\nFAIL: testFail ', stream.getvalue())
        self.assertTrue(stream.getvalue().endswith('\n\nFAILED (failures=1)\n'))

class InitialisableProgram(unittest.TestProgram):
    exit = False
    result = None
    verbosity = 1
    defaultTest = None
    tb_locals = False
    testRunner = None
    testLoader = unittest.defaultTestLoader
    module = '__main__'
    progName = 'test'
    test = 'test'
    def __init__(self, *args):
        pass

RESULT = object()

class FakeRunner(object):
    initArgs = None
    test = None
    raiseError = 0

def __init__(self, **kwargs):
        FakeRunner.initArgs = kwargs
        if FakeRunner.raiseError:
            FakeRunner.raiseError -= 1
            raise TypeError

def run(self, test):
        FakeRunner.test = test
        return RESULT

class TestCommandLineArgs(unittest.TestCase):

def setUp(self):
        self.program = InitialisableProgram()
        self.program.createTests = lambda: None
        FakeRunner.initArgs = None
        FakeRunner.test = None
        FakeRunner.raiseError = 0

def testVerbosity(self):
        program = self.program

for opt in '-q', '--quiet':
            program.verbosity = 1
            program.parseArgs([None, opt])
            self.assertEqual(program.verbosity, 0)

for opt in '-v', '--verbose':
            program.verbosity = 1
            program.parseArgs([None, opt])
            self.assertEqual(program.verbosity, 2)

def testBufferCatchFailfast(self):
        program = self.program
        for arg, attr in (('buffer', 'buffer'), ('failfast', 'failfast'),
                      ('catch', 'catchbreak')):

setattr(program, attr, None)
            program.parseArgs([None])
            self.assertIs(getattr(program, attr), False)

false = []
            setattr(program, attr, false)
            program.parseArgs([None])
            self.assertIs(getattr(program, attr), false)

true = [42]
            setattr(program, attr, true)
            program.parseArgs([None])
            self.assertIs(getattr(program, attr), true)

short_opt = '-%s' % arg[0]
            long_opt = '--%s' % arg
            for opt in short_opt, long_opt:
                setattr(program, attr, None)
                program.parseArgs([None, opt])
                self.assertIs(getattr(program, attr), True)

setattr(program, attr, False)
                with support.captured_stderr() as stderr, \
                    self.assertRaises(SystemExit) as cm:
                    program.parseArgs([None, opt])
                self.assertEqual(cm.exception.args, (2,))

setattr(program, attr, True)
                with support.captured_stderr() as stderr, \
                    self.assertRaises(SystemExit) as cm:
                    program.parseArgs([None, opt])
                self.assertEqual(cm.exception.args, (2,))

def testWarning(self):
        """Test the warnings argument"""
        # see #10535
        class FakeTP(unittest.TestProgram):
            def parseArgs(self, *args, **kw): pass
            def runTests(self, *args, **kw): pass
        warnoptions = sys.warnoptions[:]
        try:
            sys.warnoptions[:] = []
            # no warn options, no arg -> default
            self.assertEqual(FakeTP().warnings, 'default')
            # no warn options, w/ arg -> arg value
            self.assertEqual(FakeTP(warnings='ignore').warnings, 'ignore')
            sys.warnoptions[:] = ['somevalue']
            # warn options, no arg -> None
            # warn options, w/ arg -> arg value
            self.assertEqual(FakeTP().warnings, None)
            self.assertEqual(FakeTP(warnings='ignore').warnings, 'ignore')
        finally:
            sys.warnoptions[:] = warnoptions

def testRunTestsRunnerClass(self):
        program = self.program

program.testRunner = FakeRunner
        program.verbosity = 'verbosity'
        program.failfast = 'failfast'
        program.buffer = 'buffer'
        program.warnings = 'warnings'

program.runTests()

self.assertEqual(FakeRunner.initArgs, {'verbosity': 'verbosity',
                                                'failfast': 'failfast',
                                                'buffer': 'buffer',
                                                'tb_locals': False,
                                                'warnings': 'warnings'})
        self.assertEqual(FakeRunner.test, 'test')
        self.assertIs(program.result, RESULT)

def testRunTestsRunnerInstance(self):
        program = self.program

program.testRunner = FakeRunner()
        FakeRunner.initArgs = None

program.runTests()

# A new FakeRunner should not have been instantiated
        self.assertIsNone(FakeRunner.initArgs)

self.assertEqual(FakeRunner.test, 'test')
        self.assertIs(program.result, RESULT)

def test_locals(self):
        program = self.program

program.testRunner = FakeRunner
        program.parseArgs([None, '--locals'])
        self.assertEqual(True, program.tb_locals)
        program.runTests()
        self.assertEqual(FakeRunner.initArgs, {'buffer': False,
                                               'failfast': False,
                                               'tb_locals': True,
                                               'verbosity': 1,
                                               'warnings': None})

def testRunTestsOldRunnerClass(self):
        program = self.program

# Two TypeErrors are needed to fall all the way back to old-style
        # runners - one to fail tb_locals, one to fail buffer etc.
        FakeRunner.raiseError = 2
        program.testRunner = FakeRunner
        program.verbosity = 'verbosity'
        program.failfast = 'failfast'
        program.buffer = 'buffer'
        program.test = 'test'

program.runTests()

# If initialising raises a type error it should be retried
        # without the new keyword arguments
        self.assertEqual(FakeRunner.initArgs, {})
        self.assertEqual(FakeRunner.test, 'test')
        self.assertIs(program.result, RESULT)

def testCatchBreakInstallsHandler(self):
        module = sys.modules['unittest.main']
        original = module.installHandler
        def restore():
            module.installHandler = original
        self.addCleanup(restore)

self.installed = False
        def fakeInstallHandler():
            self.installed = True
        module.installHandler = fakeInstallHandler

program = self.program
        program.catchbreak = True

program.testRunner = FakeRunner

program.runTests()
        self.assertTrue(self.installed)

def _patch_isfile(self, names, exists=True):
        def isfile(path):
            return path in names
        original = os.path.isfile
        os.path.isfile = isfile
        def restore():
            os.path.isfile = original
        self.addCleanup(restore)

def testParseArgsFileNames(self):
        # running tests with filenames instead of module names
        program = self.program
        argv = ['progname', 'foo.py', 'bar.Py', 'baz.PY', 'wing.txt']
        self._patch_isfile(argv)