import sys
from unittest import TestCase


class WriteToStdoutStderrTestCase(TestCase):
    def test_pass(self):
        sys.stderr.write('Write to stderr.')
        sys.stdout.write('Write to stdout.')
        self.assertTrue(True)

    def test_fail(self):
        sys.stderr.write('Write to stderr.')
        sys.stdout.write('Write to stdout.')
        self.assertTrue(False)