Merge branch 'clebergnu-selftests_and_misc_fixes_4th_batch_v2'

Signed-off-by: NAmador Pahim <apahim@redhat.com>

avocado/core/job.py

@@ -349,7 +349,7 @@ class Job(object):
             cmd = "%s show --summary --pretty='%%H'" % git
             res = process.run(cmd, ignore_status=True, verbose=False)
             if res.exit_status == 0:
-                top_commit = res.stdout.splitlines()[0][:8]
+                top_commit = res.stdout_text.splitlines()[0][:8]
                 return " (GIT commit %s)" % top_commit
         finally:
             os.chdir(olddir)

avocado/core/test.py

@@ -1169,11 +1169,11 @@ class SimpleTest(Test):
             if regex is not None:
                 re_warn = re.compile(regex)
                 if warn_location in ['all', 'stdout']:
-                    if re_warn.search(result.stdout):
+                    if re_warn.search(result.stdout_text):
                         raise exceptions.TestWarn(warn_msg % 'stdout')
 
                 if warn_location in ['all', 'stderr']:
-                    if re_warn.search(result.stderr):
+                    if re_warn.search(result.stderr_text):
                         raise exceptions.TestWarn(warn_msg % 'stderr')
 
         if skip_regex is not None:
@@ -1182,11 +1182,11 @@ class SimpleTest(Test):
                         "Check the log for details.")
 
             if skip_location in ['all', 'stdout']:
-                if re_skip.search(result.stdout):
+                if re_skip.search(result.stdout_text):
                     raise exceptions.TestSkipError(skip_msg % 'stdout')
 
             if warn_location in ['all', 'stderr']:
-                if re_skip.search(result.stderr):
+                if re_skip.search(result.stderr_text):
                     raise exceptions.TestSkipError(skip_msg % 'stderr')
 
     def test(self):

avocado/core/tree.py

@@ -405,7 +405,7 @@ def tree_view(root, verbose=None, use_utf8=None):
             down_right = charset['DownRight']
             right = charset['Right']
         out = [node.name]
-        if verbose >= 2 and node.is_leaf:
+        if verbose is not None and verbose >= 2 and node.is_leaf:
             values = itertools.chain(iteritems(node.environment),
                                      [("filter-only", _)
                                       for _ in node.environment.filter_only],
@@ -466,7 +466,7 @@ def tree_view(root, verbose=None, use_utf8=None):
         down_right = charset['DownRight']
         right = charset['Right']
     out = []
-    if (verbose >= 2) and root.is_leaf:
+    if verbose is not None and verbose >= 2 and root.is_leaf:
         values = iteritems(root.environment)
     elif verbose in (1, 3):
         values = iteritems(root.value)

avocado/plugins/xunit.py

@@ -18,7 +18,7 @@
 import datetime
 import os
 import string
-from xml.dom.minidom import Document, Element
+from xml.dom.minidom import Document
 
 from avocado.core.parser import FileOrStdoutAction
 from avocado.core.output import LOG_UI
@@ -54,13 +54,13 @@ class XUnitResult(Result):
         return testcase
 
     def _create_failure_or_error(self, document, test, element_type):
-        element = Element(element_type)
+        element = document.createElement(element_type)
         element.setAttribute('type', self._get_attr(test, 'fail_class'))
         element.setAttribute('message', self._get_attr(test, 'fail_reason'))
         traceback_content = self._escape_cdata(test.get('traceback', self.UNKNOWN))
         traceback = document.createCDATASection(traceback_content)
         element.appendChild(traceback)
-        system_out = Element('system-out')
+        system_out = document.createElement('system-out')
         try:
             with open(test.get("logfile"), "r") as logfile_obj:
                 text_output = logfile_obj.read()
@@ -88,7 +88,7 @@ class XUnitResult(Result):
             if status in ('PASS', 'WARN'):
                 pass
             elif status == 'SKIP':
-                testcase.appendChild(Element('skipped'))
+                testcase.appendChild(document.createElement('skipped'))
             elif status == 'FAIL':
                 element, system_out = self._create_failure_or_error(document,
                                                                     test,
@@ -96,7 +96,7 @@ class XUnitResult(Result):
                 testcase.appendChild(element)
                 testcase.appendChild(system_out)
             elif status == 'CANCEL':
-                testcase.appendChild(Element('skipped'))
+                testcase.appendChild(document.createElement('skipped'))
             else:
                 element, system_out = self._create_failure_or_error(document,
                                                                     test,
@@ -123,7 +123,7 @@ class XUnitResult(Result):
         xunit_path = getattr(job.args, 'xunit_output', 'None')
         if xunit_path is not None:
             if xunit_path == '-':
-                LOG_UI.debug(content)
+                LOG_UI.debug(content.decode('UTF-8'))
             else:
                 with open(xunit_path, 'wb') as xunit_file:
                     xunit_file.write(content)

avocado/utils/iso9660.py

@@ -222,12 +222,11 @@ class Iso9660IsoInfo(MixInMntDirMount, BaseIso9660):
         """
         cmd = 'isoinfo -i %s -d' % path
         output = process.system_output(cmd)
-
-        if re.findall("\nJoliet", output):
+        if b"\nJoliet" in output:
             self.joliet = True
-        if re.findall("\nRock Ridge signatures", output):
+        if b"\nRock Ridge signatures" in output:
             self.rock_ridge = True
-        if re.findall("\nEl Torito", output):
+        if b"\nEl Torito" in output:
             self.el_torito = True
 
     @staticmethod
@@ -287,8 +286,8 @@ class Iso9660IsoRead(MixInMntDirMount, BaseIso9660):
         temp_path = os.path.join(self.temp_dir, path)
         cmd = 'iso-read -i %s -e %s -o %s' % (self.path, path, temp_path)
         process.run(cmd)
-        with open(temp_path) as temp_file:
-            return temp_file.read()
+        with open(temp_path, 'rb') as temp_file:
+            return bytes(temp_file.read())
 
     def copy(self, src, dst):
         cmd = 'iso-read -i %s -e %s -o %s' % (self.path, src, dst)
@@ -331,8 +330,8 @@ class Iso9660Mount(BaseIso9660):
         :rtype: str
         """
         full_path = os.path.join(self.mnt_dir, path)
-        with open(full_path) as file_to_read:
-            return file_to_read.read()
+        with open(full_path, 'rb') as file_to_read:
+            return bytes(file_to_read.read())
 
     def copy(self, src, dst):
         """

avocado/utils/process.py

@@ -27,6 +27,7 @@ import shutil
 import signal
 import stat
 import subprocess
+import sys
 import threading
 import time
 
@@ -269,17 +270,35 @@ class CmdResult(object):
     :type duration: float
     :param pid: ID of the process
     :type pid: int
+    :param encoding: the encoding to use for the text version
+                     of stdout and stderr, with the default being
+                     Python's own (:func:`sys.getdefaultencoding`).
+    :type encoding: str
     """
 
     def __init__(self, command="", stdout="", stderr="",
-                 exit_status=None, duration=0, pid=None):
+                 exit_status=None, duration=0, pid=None,
+                 encoding=None):
         self.command = command
         self.exit_status = exit_status
+        #: The raw stdout (bytes)
         self.stdout = stdout
+        #: The raw stderr (bytes)
         self.stderr = stderr
         self.duration = duration
         self.interrupted = False
         self.pid = pid
+        if encoding is None:
+            encoding = sys.getdefaultencoding()
+        self.encoding = encoding
+
+    @property
+    def stdout_text(self):
+        return self.stdout.decode(self.encoding)
+
+    @property
+    def stderr_text(self):
+        return self.stderr.decode(self.encoding)
 
     def __repr__(self):
         cmd_rep = ("Command: %s\n"
@@ -1312,12 +1331,12 @@ def system_output(cmd, timeout=None, verbose=True, ignore_status=False,
     :type strip_trail_nl: bool
 
     :return: Command output.
-    :rtype: str
+    :rtype: bytes
     :raise: :class:`CmdError`, if ``ignore_status=False``.
     """
     cmd_result = run(cmd=cmd, timeout=timeout, verbose=verbose, ignore_status=ignore_status,
                      allow_output_check=allow_output_check, shell=shell, env=env,
                      sudo=sudo, ignore_bg_processes=ignore_bg_processes)
     if strip_trail_nl:
-        return cmd_result.stdout.rstrip('\n\r')
+        return cmd_result.stdout.rstrip(b'\n\r')
     return cmd_result.stdout

examples/tests/doublefree.py

@@ -45,9 +45,9 @@ class DoubleFreeTest(Test):
         self.log.info(cmd_result)
         output = cmd_result.stdout + cmd_result.stderr
         if sys.platform.startswith('darwin'):
-            pattern = 'pointer being freed was not allocated'
+            pattern = b'pointer being freed was not allocated'
         else:
-            pattern = 'free(): invalid pointer'
+            pattern = b'free(): invalid pointer'
         self.assertTrue(pattern in output,
                         msg='Could not find pattern %s in output %s' %
                             (pattern, output))

optional_plugins/varianter_yaml_to_mux/tests/test_multiplex.py

@@ -12,7 +12,7 @@ basedir = os.path.abspath(basedir)
 
 AVOCADO = os.environ.get("UNITTEST_AVOCADO_CMD", "./scripts/avocado")
 
-DEBUG_OUT = """
+DEBUG_OUT = b"""
 Variant mint-debug-amd-virtio-935e:    amd@optional_plugins/varianter_yaml_to_mux/tests/.data/mux-environment.yaml, virtio@optional_plugins/varianter_yaml_to_mux/tests/.data/mux-environment.yaml, mint@optional_plugins/varianter_yaml_to_mux/tests/.data/mux-environment.yaml, debug@optional_plugins/varianter_yaml_to_mux/tests/.data/mux-environment.yaml
     /distro/mint:init         => systemv@optional_plugins/varianter_yaml_to_mux/tests/.data/mux-environment.yaml:/distro/mint
     /env/debug:opt_CFLAGS     => -O0 -g@optional_plugins/varianter_yaml_to_mux/tests/.data/mux-environment.yaml:/env/debug
@@ -38,7 +38,7 @@ class MultiplexTests(unittest.TestCase):
         if tests is not None:
             exp = ("PASS %s | ERROR 0 | FAIL %s | SKIP 0 | WARN 0 | "
                    "INTERRUPT 0" % tests)
-            self.assertIn(exp, result.stdout, "%s not in stdout:\n%s"
+            self.assertIn(exp, result.stdout_text, "%s not in stdout:\n%s"
                           % (exp, result))
         return result
 
@@ -52,7 +52,7 @@ class MultiplexTests(unittest.TestCase):
         cmd_line = '%s variants -m nonexist' % AVOCADO
         expected_rc = exit_codes.AVOCADO_FAIL
         result = self.run_and_check(cmd_line, expected_rc)
-        self.assertIn('No such file or directory', result.stderr)
+        self.assertIn('No such file or directory', result.stderr_text)
 
     def test_mplex_debug(self):
         cmd_line = ('%s variants -c -d -m '
@@ -106,9 +106,9 @@ class MultiplexTests(unittest.TestCase):
                     % (AVOCADO, self.tmpdir))
         expected_rc = exit_codes.AVOCADO_TESTS_FAIL
         result = self.run_and_check(cmd_line, expected_rc, (4, 4))
-        self.assertIn("(1/8) passtest.py:PassTest.test;short", result.stdout)
-        self.assertIn("(2/8) passtest.py:PassTest.test;medium", result.stdout)
-        self.assertIn("(8/8) failtest.py:FailTest.test;longest",
+        self.assertIn(b"(1/8) passtest.py:PassTest.test;short", result.stdout)
+        self.assertIn(b"(2/8) passtest.py:PassTest.test;medium", result.stdout)
+        self.assertIn(b"(8/8) failtest.py:FailTest.test;longest",
                       result.stdout)
 
     def test_run_mplex_failtest_tests_per_variant(self):
@@ -119,9 +119,9 @@ class MultiplexTests(unittest.TestCase):
                     % (AVOCADO, self.tmpdir))
         expected_rc = exit_codes.AVOCADO_TESTS_FAIL
         result = self.run_and_check(cmd_line, expected_rc, (4, 4))
-        self.assertIn("(1/8) passtest.py:PassTest.test;short", result.stdout)
-        self.assertIn("(2/8) failtest.py:FailTest.test;short", result.stdout)
-        self.assertIn("(8/8) failtest.py:FailTest.test;longest",
+        self.assertIn(b"(1/8) passtest.py:PassTest.test;short", result.stdout)
+        self.assertIn(b"(2/8) failtest.py:FailTest.test;short", result.stdout)
+        self.assertIn(b"(8/8) failtest.py:FailTest.test;longest",
                       result.stdout)
 
     def test_run_double_mplex(self):
@@ -155,15 +155,15 @@ class MultiplexTests(unittest.TestCase):
 
             msg_lines = msg.splitlines()
             msg_header = '[stdout] Custom variable: %s' % msg_lines[0]
-            self.assertIn(msg_header, result.stdout,
+            self.assertIn(msg_header, result.stdout_text,
                           "Multiplexed variable should produce:"
                           "\n  %s\nwhich is not present in the output:\n  %s"
-                          % (msg_header, "\n  ".join(result.stdout.splitlines())))
+                          % (msg_header, "\n  ".join(result.stdout_text.splitlines())))
             for msg_remain in msg_lines[1:]:
-                self.assertIn('[stdout] %s' % msg_remain, result.stdout,
+                self.assertIn('[stdout] %s' % msg_remain, result.stdout_text,
                               "Multiplexed variable should produce:"
                               "\n  %s\nwhich is not present in the output:\n  %s"
-                              % (msg_remain, "\n  ".join(result.stdout.splitlines())))
+                              % (msg_remain, "\n  ".join(result.stdout_text.splitlines())))
 
     def tearDown(self):
         shutil.rmtree(self.tmpdir)

optional_plugins/varianter_yaml_to_mux/tests/test_mux.py

@@ -2,9 +2,10 @@ import copy
 import itertools
 import os
 import pickle
+import sys
 import unittest
-import yaml
 
+import yaml
 from six import iteritems
 
 import avocado_varianter_yaml_to_mux as yaml_to_mux
@@ -420,8 +421,13 @@ class TestMultipleLoaders(unittest.TestCase):
         debug = yaml_to_mux.create_from_yaml([yaml_url], debug=True)
         self.assertEqual(type(debug), mux.MuxTreeNodeDebug)
         # Debug nodes are of generated "NamedTreeNodeDebug" type
-        self.assertEqual("<class 'avocado_varianter_yaml_to_mux.NamedTreeNodeDebug'>",
-                         str(type(debug.children[0])))
+        if sys.version_info[0] == 3:
+            children_type = ("<class 'avocado_varianter_yaml_to_mux."
+                             "get_named_tree_cls.<locals>.NamedTreeNodeDebug'>")
+        else:
+            children_type = ("<class 'avocado_varianter_yaml_to_mux."
+                             "NamedTreeNodeDebug'>")
+        self.assertEqual(children_type, str(type(debug.children[0])))
         plain = yaml.load("foo: bar")
         self.assertEqual(type(plain), dict)
 

selftests/functional/test_argument_parsing.py

@@ -39,8 +39,8 @@ class ArgumentParsingTest(unittest.TestCase):
         expected_rc = exit_codes.AVOCADO_FAIL
         self.assertEqual(result.exit_status, expected_rc,
                          'Avocado did not return rc %d:\n%s' % (expected_rc, result))
-        subcommand_error_msg = 'avocado run: error: unrecognized arguments: '\
-                               '--whacky-argument'
+        subcommand_error_msg = (b'avocado run: error: unrecognized arguments: '
+                                b'--whacky-argument')
         self.assertIn(subcommand_error_msg, result.stderr)
 
 

selftests/functional/test_basic.py

@@ -140,7 +140,7 @@ GNU_ECHO_BINARY = probe_binary('echo')
 if GNU_ECHO_BINARY is not None:
     if probe_binary('man') is not None:
         echo_manpage = process.run('man %s' % os.path.basename(GNU_ECHO_BINARY)).stdout
-        if '-e' not in echo_manpage:
+        if b'-e' not in echo_manpage:
             GNU_ECHO_BINARY = probe_binary('gecho')
 READ_BINARY = probe_binary('read')
 SLEEP_BINARY = probe_binary('sleep')
@@ -163,9 +163,9 @@ class RunnerOperationTest(unittest.TestCase):
     def test_show_version(self):
         result = process.run('%s -v' % AVOCADO, ignore_status=True)
         self.assertEqual(result.exit_status, 0)
-        self.assertTrue(re.match(r"^Avocado \d+\.\d+$", result.stderr),
+        self.assertTrue(re.match(r"^Avocado \d+\.\d+$", result.stderr_text),
                         "Version string does not match 'Avocado \\d\\.\\d:'\n"
-                        "%r" % (result.stderr))
+                        "%r" % (result.stderr_text))
 
     def test_alternate_config_datadir(self):
         """
@@ -195,9 +195,9 @@ class RunnerOperationTest(unittest.TestCase):
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %d:\n%s" %
                          (expected_rc, result))
-        self.assertIn('    base     ' + mapping['base_dir'], result.stdout)
-        self.assertIn('    data     ' + mapping['data_dir'], result.stdout)
-        self.assertIn('    logs     ' + mapping['logs_dir'], result.stdout)
+        self.assertIn('    base     ' + mapping['base_dir'], result.stdout_text)
+        self.assertIn('    data     ' + mapping['data_dir'], result.stdout_text)
+        self.assertIn('    logs     ' + mapping['logs_dir'], result.stdout_text)
 
     def test_runner_all_ok(self):
         cmd_line = ('%s run --sysinfo=off --job-results-dir %s '
@@ -214,8 +214,8 @@ class RunnerOperationTest(unittest.TestCase):
                     'passtest.py failtest.py passtest.py --failfast on'
                     % (AVOCADO, self.tmpdir))
         result = process.run(cmd_line, ignore_status=True)
-        self.assertIn('Interrupting job (failfast).', result.stdout)
-        self.assertIn('PASS 1 | ERROR 0 | FAIL 1 | SKIP 1', result.stdout)
+        self.assertIn(b'Interrupting job (failfast).', result.stdout)
+        self.assertIn(b'PASS 1 | ERROR 0 | FAIL 1 | SKIP 1', result.stdout)
         expected_rc = exit_codes.AVOCADO_TESTS_FAIL | exit_codes.AVOCADO_JOB_INTERRUPTED
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %d:\n%s" % (expected_rc, result))
@@ -225,8 +225,8 @@ class RunnerOperationTest(unittest.TestCase):
                     'passtest.py badtest.py --ignore-missing-references on'
                     % (AVOCADO, self.tmpdir))
         result = process.run(cmd_line, ignore_status=True)
-        self.assertIn("Unable to resolve reference(s) 'badtest.py'", result.stderr)
-        self.assertIn('PASS 1 | ERROR 0 | FAIL 0 | SKIP 0', result.stdout)
+        self.assertIn(b"Unable to resolve reference(s) 'badtest.py'", result.stderr)
+        self.assertIn(b'PASS 1 | ERROR 0 | FAIL 0 | SKIP 0', result.stdout)
         expected_rc = exit_codes.AVOCADO_ALL_OK
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %d:\n%s" % (expected_rc, result))
@@ -236,9 +236,9 @@ class RunnerOperationTest(unittest.TestCase):
                     'badtest.py badtest2.py --ignore-missing-references on'
                     % (AVOCADO, self.tmpdir))
         result = process.run(cmd_line, ignore_status=True)
-        self.assertIn("Unable to resolve reference(s) 'badtest.py', 'badtest2.py'",
+        self.assertIn(b"Unable to resolve reference(s) 'badtest.py', 'badtest2.py'",
                       result.stderr)
-        self.assertEqual('', result.stdout)
+        self.assertEqual(b'', result.stdout)
         expected_rc = exit_codes.AVOCADO_JOB_FAIL
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %d:\n%s" % (expected_rc, result))
@@ -336,18 +336,16 @@ class RunnerOperationTest(unittest.TestCase):
         cmd_line = ('%s run --sysinfo=off --job-results-dir %s '
                     '--xunit - doublefail.py' % (AVOCADO, self.tmpdir))
         result = process.run(cmd_line, ignore_status=True)
-        output = result.stdout
         expected_rc = exit_codes.AVOCADO_TESTS_FAIL
         unexpected_rc = exit_codes.AVOCADO_FAIL
         self.assertNotEqual(result.exit_status, unexpected_rc,
                             "Avocado crashed (rc %d):\n%s" % (unexpected_rc, result))
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %d:\n%s" % (expected_rc, result))
-        self.assertIn("TestError: Failing during tearDown. Yay!", output,
+        self.assertIn(b"TestError: Failing during tearDown. Yay!", result.stdout,
                       "Cleanup exception not printed to log output")
-        self.assertIn("TestFail: This test is supposed to fail",
-                      output,
-                      "Test did not fail with action exception:\n%s" % output)
+        self.assertIn(b"TestFail: This test is supposed to fail", result.stdout,
+                      "Test did not fail with action exception:\n%s" % result.stdout)
 
     def test_uncaught_exception(self):
         cmd_line = ("%s run --sysinfo=off --job-results-dir %s "
@@ -357,7 +355,7 @@ class RunnerOperationTest(unittest.TestCase):
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %d:\n%s" % (expected_rc,
                                                                 result))
-        self.assertIn('"status": "ERROR"', result.stdout)
+        self.assertIn(b'"status": "ERROR"', result.stdout)
 
     def test_fail_on_exception(self):
         cmd_line = ("%s run --sysinfo=off --job-results-dir %s "
@@ -367,7 +365,7 @@ class RunnerOperationTest(unittest.TestCase):
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %d:\n%s" % (expected_rc,
                                                                 result))
-        self.assertIn('"status": "FAIL"', result.stdout)
+        self.assertIn(b'"status": "FAIL"', result.stdout)
 
     def test_exception_not_in_path(self):
         os.mkdir(os.path.join(self.tmpdir, "shared_lib"))
@@ -383,10 +381,10 @@ class RunnerOperationTest(unittest.TestCase):
         result = process.run("%s --show test run --sysinfo=off "
                              "--job-results-dir %s %s"
                              % (AVOCADO, self.tmpdir, mytest))
-        self.assertIn("mytest.py:SharedLibTest.test -> CancelExc: This "
-                      "should not crash on unpickling in runner",
+        self.assertIn(b"mytest.py:SharedLibTest.test -> CancelExc: This "
+                      b"should not crash on unpickling in runner",
                       result.stdout)
-        self.assertNotIn("Failed to read queue", result.stdout)
+        self.assertNotIn(b"Failed to read queue", result.stdout)
 
     def test_runner_timeout(self):
         cmd_line = ('%s run --sysinfo=off --job-results-dir %s '
@@ -399,10 +397,10 @@ class RunnerOperationTest(unittest.TestCase):
                             "Avocado crashed (rc %d):\n%s" % (unexpected_rc, result))
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %d:\n%s" % (expected_rc, result))
-        self.assertIn("Runner error occurred: Timeout reached", output,
+        self.assertIn(b"Runner error occurred: Timeout reached", output,
                       "Timeout reached message not found in the output:\n%s" % output)
         # Ensure no test aborted error messages show up
-        self.assertNotIn("TestAbortedError: Test aborted unexpectedly", output)
+        self.assertNotIn(b"TestAbortedError: Test aborted unexpectedly", output)
 
     @unittest.skipIf(int(os.environ.get("AVOCADO_CHECK_LEVEL", 0)) < 2,
                      "Skipping test that take a long time to run, are "
@@ -411,7 +409,7 @@ class RunnerOperationTest(unittest.TestCase):
         cmd_line = ('%s run --sysinfo=off --job-results-dir %s '
                     '--xunit - abort.py' % (AVOCADO, self.tmpdir))
         result = process.run(cmd_line, ignore_status=True)
-        excerpt = 'Test died without reporting the status.'
+        excerpt = b'Test died without reporting the status.'
         expected_rc = exit_codes.AVOCADO_TESTS_FAIL
         unexpected_rc = exit_codes.AVOCADO_FAIL
         self.assertNotEqual(result.exit_status, unexpected_rc,
@@ -425,37 +423,37 @@ class RunnerOperationTest(unittest.TestCase):
                     'passtest.py' % (AVOCADO, self.tmpdir))
         result = process.run(cmd_line, ignore_status=True)
         self.assertEqual(result.exit_status, exit_codes.AVOCADO_ALL_OK)
-        self.assertEqual(result.stdout, '')
+        self.assertEqual(result.stdout, b'')
 
     def test_empty_args_list(self):
         cmd_line = AVOCADO
         result = process.run(cmd_line, ignore_status=True)
         self.assertEqual(result.exit_status, exit_codes.AVOCADO_FAIL)
-        self.assertIn('error: too few arguments', result.stderr)
+        self.assertIn(b'error: too few arguments', result.stderr)
 
     def test_empty_test_list(self):
         cmd_line = '%s run --sysinfo=off --job-results-dir %s' % (AVOCADO,
                                                                   self.tmpdir)
         result = process.run(cmd_line, ignore_status=True)
         self.assertEqual(result.exit_status, exit_codes.AVOCADO_JOB_FAIL)
-        self.assertIn('No test references provided nor any other arguments '
-                      'resolved into tests', result.stderr)
+        self.assertIn(b'No test references provided nor any other arguments '
+                      b'resolved into tests', result.stderr)
 
     def test_not_found(self):
         cmd_line = ('%s run --sysinfo=off --job-results-dir %s sbrubles'
                     % (AVOCADO, self.tmpdir))
         result = process.run(cmd_line, ignore_status=True)
         self.assertEqual(result.exit_status, exit_codes.AVOCADO_JOB_FAIL)
-        self.assertIn('Unable to resolve reference', result.stderr)
-        self.assertNotIn('Unable to resolve reference', result.stdout)
+        self.assertIn(b'Unable to resolve reference', result.stderr)
+        self.assertNotIn(b'Unable to resolve reference', result.stdout)
 
     def test_invalid_unique_id(self):
         cmd_line = ('%s run --sysinfo=off --job-results-dir %s --force-job-id '
                     'foobar passtest.py' % (AVOCADO, self.tmpdir))
         result = process.run(cmd_line, ignore_status=True)
         self.assertNotEqual(result.exit_status, exit_codes.AVOCADO_ALL_OK)
-        self.assertIn('needs to be a 40 digit hex', result.stderr)
-        self.assertNotIn('needs to be a 40 digit hex', result.stdout)
+        self.assertIn(b'needs to be a 40 digit hex', result.stderr)
+        self.assertNotIn(b'needs to be a 40 digit hex', result.stdout)
 
     def test_valid_unique_id(self):
         cmd_line = ('%s run --job-results-dir %s --sysinfo=off '
@@ -463,8 +461,8 @@ class RunnerOperationTest(unittest.TestCase):
                     'passtest.py' % (AVOCADO, self.tmpdir))
         result = process.run(cmd_line, ignore_status=True)
         self.assertEqual(result.exit_status, exit_codes.AVOCADO_ALL_OK)
-        self.assertNotIn('needs to be a 40 digit hex', result.stderr)
-        self.assertIn('PASS', result.stdout)
+        self.assertNotIn(b'needs to be a 40 digit hex', result.stderr)
+        self.assertIn(b'PASS', result.stdout)
 
     def test_automatic_unique_id(self):
         cmd_line = ('%s run --job-results-dir %s --sysinfo=off '
@@ -530,7 +528,7 @@ class RunnerOperationTest(unittest.TestCase):
                          "Avocado did not return rc %d:\n%s" %
                          (expected_rc, result))
         self.assertIn('1-%s:MyTest.test_my_name -> TestError' % test,
-                      result.stdout)
+                      result.stdout_text)
 
     @unittest.skipIf(not READ_BINARY, "read binary not available.")
     @unittest.skipIf(int(os.environ.get("AVOCADO_CHECK_LEVEL", 0)) < 1,
@@ -563,7 +561,7 @@ class RunnerHumanOutputTest(unittest.TestCase):
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %d:\n%s" %
                          (expected_rc, result))
-        self.assertIn('passtest.py:PassTest.test:  PASS', result.stdout)
+        self.assertIn(b'passtest.py:PassTest.test:  PASS', result.stdout)
 
     def test_output_fail(self):
         cmd_line = ('%s run --sysinfo=off --job-results-dir %s '
@@ -573,7 +571,7 @@ class RunnerHumanOutputTest(unittest.TestCase):
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %d:\n%s" %
                          (expected_rc, result))
-        self.assertIn('failtest.py:FailTest.test:  FAIL', result.stdout)
+        self.assertIn(b'failtest.py:FailTest.test:  FAIL', result.stdout)
 
     def test_output_error(self):
         cmd_line = ('%s run --sysinfo=off --job-results-dir %s '
@@ -583,7 +581,7 @@ class RunnerHumanOutputTest(unittest.TestCase):
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %d:\n%s" %
                          (expected_rc, result))
-        self.assertIn('errortest.py:ErrorTest.test:  ERROR', result.stdout)
+        self.assertIn(b'errortest.py:ErrorTest.test:  ERROR', result.stdout)
 
     def test_output_cancel(self):
         cmd_line = ('%s run --sysinfo=off --job-results-dir %s '
@@ -593,7 +591,8 @@ class RunnerHumanOutputTest(unittest.TestCase):
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %d:\n%s" %
                          (expected_rc, result))
-        self.assertIn('PASS 0 | ERROR 0 | FAIL 0 | SKIP 0 | WARN 0 | INTERRUPT 0 | CANCEL 1',
+        self.assertIn(b'PASS 0 | ERROR 0 | FAIL 0 | SKIP 0 | WARN 0 | '
+                      b'INTERRUPT 0 | CANCEL 1',
                       result.stdout)
 
     @unittest.skipIf(not GNU_ECHO_BINARY,
@@ -608,10 +607,10 @@ class RunnerHumanOutputTest(unittest.TestCase):
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %s:\n%s" %
                          (expected_rc, result))
-        self.assertIn('[stdout] foo', result.stdout, result)
-        self.assertIn('[stdout] \'"', result.stdout, result)
-        self.assertIn('[stdout] bar/baz', result.stdout, result)
-        self.assertIn('PASS 1-foo\\\\n\\\'\\"\\\\nbar/baz',
+        self.assertIn(b'[stdout] foo', result.stdout, result)
+        self.assertIn(b'[stdout] \'"', result.stdout, result)
+        self.assertIn(b'[stdout] bar/baz', result.stdout, result)
+        self.assertIn(b'PASS 1-foo\\\\n\\\'\\"\\\\nbar/baz',
                       result.stdout, result)
         # logdir name should escape special chars (/)
         test_dirs = glob.glob(os.path.join(self.tmpdir, 'latest',
@@ -729,12 +728,12 @@ class RunnerSimpleTest(unittest.TestCase):
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %s:\n%s" %
                          (expected_rc, result))
-        self.assertIn('DEBUG| Debug message', result.stdout, result)
-        self.assertIn('INFO | Info message', result.stdout, result)
-        self.assertIn('WARN | Warning message (should cause this test to '
-                      'finish with warning)', result.stdout, result)
-        self.assertIn('ERROR| Error message (ordinary message not changing '
-                      'the results)', result.stdout, result)
+        self.assertIn(b'DEBUG| Debug message', result.stdout, result)
+        self.assertIn(b'INFO | Info message', result.stdout, result)
+        self.assertIn(b'WARN | Warning message (should cause this test to '
+                      b'finish with warning)', result.stdout, result)
+        self.assertIn(b'ERROR| Error message (ordinary message not changing '
+                      b'the results)', result.stdout, result)
 
     @unittest.skipIf(not GNU_ECHO_BINARY, "Uses echo as test")
     def test_fs_unfriendly_run(self):
@@ -917,8 +916,8 @@ class ExternalRunnerTest(unittest.TestCase):
                     '--external-runner=/bin/sh --external-runner-chdir=test %s'
                     % (AVOCADO, self.tmpdir, self.pass_script.path))
         result = process.run(cmd_line, ignore_status=True)
-        expected_output = ('Option "--external-runner-chdir=test" requires '
-                           '"--external-runner-testdir" to be set')
+        expected_output = (b'Option "--external-runner-chdir=test" requires '
+                           b'"--external-runner-testdir" to be set')
         self.assertIn(expected_output, result.stderr)
         expected_rc = exit_codes.AVOCADO_JOB_FAIL
         self.assertEqual(result.exit_status, expected_rc,
@@ -929,8 +928,8 @@ class ExternalRunnerTest(unittest.TestCase):
         cmd_line = ('%s run --job-results-dir %s --sysinfo=off '
                     '--external-runner=%s' % (AVOCADO, self.tmpdir, TRUE_CMD))
         result = process.run(cmd_line, ignore_status=True)
-        expected_output = ('No test references provided nor any other '
-                           'arguments resolved into tests')
+        expected_output = (b'No test references provided nor any other '
+                           b'arguments resolved into tests')
         self.assertIn(expected_output, result.stderr)
         expected_rc = exit_codes.AVOCADO_JOB_FAIL
         self.assertEqual(result.exit_status, expected_rc,
@@ -972,7 +971,8 @@ class PluginsTest(AbsPluginsTest, unittest.TestCase):
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %d:\n%s" %
                          (expected_rc, result))
-        self.assertNotIn('No tests were found on current tests dir', result.stdout)
+        self.assertNotIn(b'No tests were found on current tests dir',
+                         result.stdout)
 
     def test_list_error_output(self):
         cmd_line = '%s list sbrubles' % AVOCADO
@@ -981,7 +981,7 @@ class PluginsTest(AbsPluginsTest, unittest.TestCase):
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %d:\n%s" %
                          (expected_rc, result))
-        self.assertIn("Unable to resolve reference", result.stderr)
+        self.assertIn(b"Unable to resolve reference", result.stderr)
 
     def test_list_no_file_loader(self):
         cmd_line = ("%s list --loaders external --verbose -- "
@@ -990,12 +990,12 @@ class PluginsTest(AbsPluginsTest, unittest.TestCase):
         self.assertEqual(result.exit_status, exit_codes.AVOCADO_ALL_OK,
                          "Avocado did not return rc %d:\n%s"
                          % (exit_codes.AVOCADO_ALL_OK, result))
-        exp = ("Type    Test                 Tag(s)\n"
-               "MISSING this-wont-be-matched \n\n"
-               "TEST TYPES SUMMARY\n"
-               "==================\n"
-               "EXTERNAL: 0\n"
-               "MISSING: 1\n")
+        exp = (b"Type    Test                 Tag(s)\n"
+               b"MISSING this-wont-be-matched \n\n"
+               b"TEST TYPES SUMMARY\n"
+               b"==================\n"
+               b"EXTERNAL: 0\n"
+               b"MISSING: 1\n")
         self.assertEqual(exp, result.stdout, "Stdout mismatch:\n%s\n\n%s"
                          % (exp, result))
 
@@ -1011,7 +1011,7 @@ class PluginsTest(AbsPluginsTest, unittest.TestCase):
         self.assertEqual(result.exit_status, exit_codes.AVOCADO_ALL_OK,
                          "Avocado did not return rc %d:\n%s"
                          % (exit_codes.AVOCADO_ALL_OK, result))
-        stdout_lines = result.stdout.splitlines()
+        stdout_lines = result.stdout_text.splitlines()
         self.assertIn("Tag(s)", stdout_lines[0])
         full_test_name = "%s:MyTest.test" % test
         self.assertEqual("INSTRUMENTED %s BIG_TAG_NAME" % full_test_name,
@@ -1029,7 +1029,7 @@ class PluginsTest(AbsPluginsTest, unittest.TestCase):
                          "Avocado did not return rc %d:\n%s" %
                          (expected_rc, result))
         if sys.version_info[:2] >= (2, 7, 0):
-            self.assertNotIn('Disabled', result.stdout)
+            self.assertNotIn(b'Disabled', result.stdout)
 
     def test_config_plugin(self):
         cmd_line = '%s config --paginator off' % AVOCADO
@@ -1038,7 +1038,7 @@ class PluginsTest(AbsPluginsTest, unittest.TestCase):
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %d:\n%s" %
                          (expected_rc, result))
-        self.assertNotIn('Disabled', result.stdout)
+        self.assertNotIn(b'Disabled', result.stdout)
 
     def test_config_plugin_datadir(self):
         cmd_line = '%s config --datadir --paginator off' % AVOCADO
@@ -1047,7 +1047,7 @@ class PluginsTest(AbsPluginsTest, unittest.TestCase):
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %d:\n%s" %
                          (expected_rc, result))
-        self.assertNotIn('Disabled', result.stdout)
+        self.assertNotIn(b'Disabled', result.stdout)
 
     def test_disable_plugin(self):
         cmd_line = '%s plugins' % AVOCADO
@@ -1056,7 +1056,7 @@ class PluginsTest(AbsPluginsTest, unittest.TestCase):
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %d:\n%s" %
                          (expected_rc, result))
-        self.assertIn("Collect system information", result.stdout)
+        self.assertIn(b"Collect system information", result.stdout)
 
         config_content = "[plugins]\ndisable=['cli.cmd.sysinfo',]"
         config = script.TemporaryScript("disable_sysinfo_cmd.conf",
@@ -1068,7 +1068,7 @@ class PluginsTest(AbsPluginsTest, unittest.TestCase):
             self.assertEqual(result.exit_status, expected_rc,
                              "Avocado did not return rc %d:\n%s" %
                              (expected_rc, result))
-            self.assertNotIn("Collect system information", result.stdout)
+            self.assertNotIn(b"Collect system information", result.stdout)
 
     def test_plugin_order(self):
         """
@@ -1104,7 +1104,7 @@ class PluginsTest(AbsPluginsTest, unittest.TestCase):
                          "Avocado did not return rc %d:\n%s" %
                          (expected_rc, result))
         for result_plugin in result_plugins:
-            self.assertIn(result_plugin, result.stdout)
+            self.assertIn(result_plugin, result.stdout_text)
 
         config_content_zip_first = "[plugins.result]\norder=['zip_archive']"
         config_zip_first = script.TemporaryScript("zip_first.conf",
@@ -1140,7 +1140,7 @@ class PluginsTest(AbsPluginsTest, unittest.TestCase):
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %d:\n%s" %
                          (expected_rc, result))
-        self.assertNotIn("'Namespace' object has no attribute", result.stderr)
+        self.assertNotIn(b"'Namespace' object has no attribute", result.stderr)
 
 
 class ParseXMLError(Exception):

selftests/functional/test_interrupt.py

@@ -148,10 +148,10 @@ class InterruptTest(unittest.TestCase):
 
         output = self.proc.stdout.read()
         # Make sure the Interrupted requested sentence is there
-        self.assertIn('Interrupt requested. Waiting 2 seconds for test to '
-                      'finish (ignoring new Ctrl+C until then)', output)
+        self.assertIn(b'Interrupt requested. Waiting 2 seconds for test to '
+                      b'finish (ignoring new Ctrl+C until then)', output)
         # Make sure the Killing test subprocess message did appear
-        self.assertIn('Killing test subprocess', output)
+        self.assertIn(b'Killing test subprocess', output)
 
     @unittest.skipIf(int(os.environ.get("AVOCADO_CHECK_LEVEL", 0)) < 2,
                      "Skipping test that take a long time to run, are "
@@ -191,7 +191,7 @@ class InterruptTest(unittest.TestCase):
                         timeout=10), 'Avocado left processes behind.')
 
         # Make sure the Interrupted test sentence is there
-        self.assertIn('Terminated\n', self.proc.stdout.read())
+        self.assertIn(b'Terminated\n', self.proc.stdout.read())
 
     @unittest.skipIf(int(os.environ.get("AVOCADO_CHECK_LEVEL", 0)) < 1,
                      "Skipping test that take a long time to run, are "
@@ -232,10 +232,10 @@ class InterruptTest(unittest.TestCase):
 
         output = self.proc.stdout.read()
         # Make sure the Interrupted requested sentence is there
-        self.assertIn('Interrupt requested. Waiting 2 seconds for test to '
-                      'finish (ignoring new Ctrl+C until then)', output)
+        self.assertIn(b'Interrupt requested. Waiting 2 seconds for test to '
+                      b'finish (ignoring new Ctrl+C until then)', output)
         # Make sure the Killing test subprocess message is not there
-        self.assertNotIn('Killing test subprocess', output)
+        self.assertNotIn(b'Killing test subprocess', output)
 
     @unittest.skipIf(int(os.environ.get("AVOCADO_CHECK_LEVEL", 0)) < 1,
                      "Skipping test that take a long time to run, are "
@@ -275,7 +275,7 @@ class InterruptTest(unittest.TestCase):
                         timeout=10), 'Avocado left processes behind.')
 
         # Make sure the Interrupted test sentence is there
-        self.assertIn('Terminated\n', self.proc.stdout.read())
+        self.assertIn(b'Terminated\n', self.proc.stdout.read())
 
     def tearDown(self):
         shutil.rmtree(self.tmpdir)

selftests/functional/test_loader.py

@@ -164,7 +164,7 @@ class LoaderTestFunctional(unittest.TestCase):
         test_script.save()
         cmd_line = ('%s list -V %s' % (AVOCADO, test_script.path))
         result = process.run(cmd_line)
-        self.assertIn('%s: %s' % (exp_str, count), result.stdout)
+        self.assertIn('%s: %s' % (exp_str, count), result.stdout_text)
         test_script.remove()
 
     def _run_with_timeout(self, cmd_line, timeout):
@@ -213,7 +213,7 @@ class LoaderTestFunctional(unittest.TestCase):
                         ("Took more than 3 seconds to list tests. Loader "
                          "probably loaded/executed Python code and slept for "
                          "eleven seconds."))
-        self.assertIn('INSTRUMENTED: 2', result.stdout)
+        self.assertIn(b'INSTRUMENTED: 2', result.stdout)
 
     def test_multiple_class(self):
         self._test('multipleclasses.py', AVOCADO_TEST_MULTIPLE_CLASSES,
@@ -246,7 +246,7 @@ class LoaderTestFunctional(unittest.TestCase):
         mytest.save()
         cmd_line = "%s list -V %s" % (AVOCADO, mytest)
         result = process.run(cmd_line)
-        self.assertIn('SIMPLE: 1', result.stdout)
+        self.assertIn(b'SIMPLE: 1', result.stdout)
         # job should be able to finish under 5 seconds. If this fails, it's
         # possible that we hit the "simple test fork bomb" bug
         cmd_line = ("%s run --sysinfo=off --job-results-dir '%s' -- '%s'"
@@ -357,10 +357,10 @@ class LoaderTestFunctional(unittest.TestCase):
         """
         cmd = "%s list examples/tests/:fail" % AVOCADO
         result = process.run(cmd)
-        expected = ("INSTRUMENTED examples/tests/doublefail.py:DoubleFail.test\n"
-                    "INSTRUMENTED examples/tests/fail_on_exception.py:FailOnException.test\n"
-                    "INSTRUMENTED examples/tests/failtest.py:FailTest.test\n"
-                    "SIMPLE       examples/tests/failtest.sh\n")
+        expected = (b"INSTRUMENTED examples/tests/doublefail.py:DoubleFail.test\n"
+                    b"INSTRUMENTED examples/tests/fail_on_exception.py:FailOnException.test\n"
+                    b"INSTRUMENTED examples/tests/failtest.py:FailTest.test\n"
+                    b"SIMPLE       examples/tests/failtest.sh\n")
         self.assertEqual(expected, result.stdout)
 
     def tearDown(self):

selftests/functional/test_output.py

@@ -157,7 +157,7 @@ class OutputTest(unittest.TestCase):
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %d:\n%s" %
                          (expected_rc, result))
-        bad_string = 'double free or corruption'
+        bad_string = b'double free or corruption'
         self.assertNotIn(bad_string, output,
                          "Libc double free can be seen in avocado "
                          "doublefree output:\n%s" % output)
@@ -313,7 +313,7 @@ class OutputPluginTest(unittest.TestCase):
                                  '(--xunit)): Options ((--xunit --json)|'
                                  '(--json --xunit)) are trying to use stdout '
                                  'simultaneously\n')
-        self.assertIsNotNone(error_regex.match(result.stderr),
+        self.assertIsNotNone(error_regex.match(result.stderr_text),
                              "Missing error message from output:\n%s" %
                              result.stderr)
 
@@ -328,7 +328,7 @@ class OutputPluginTest(unittest.TestCase):
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %d:\n%s" %
                          (expected_rc, result))
-        error_excerpt = "HTML to stdout not supported"
+        error_excerpt = b"HTML to stdout not supported"
         self.assertIn(error_excerpt, output,
                       "Missing excerpt error message from output:\n%s" % output)
 
@@ -427,7 +427,7 @@ class OutputPluginTest(unittest.TestCase):
             self.assertEqual(result.exit_status, expected_rc,
                              "Avocado did not return rc %d:\n%s" %
                              (expected_rc, result))
-            self.assertEqual(output, "", "Output is not empty:\n%s" % output)
+            self.assertEqual(output, b"", "Output is not empty:\n%s" % output)
             # Check if we are producing valid outputs
             with open(tmpfile2, 'r') as fp:
                 json_results = json.load(fp)
@@ -447,7 +447,7 @@ class OutputPluginTest(unittest.TestCase):
                     "--job-results-dir %s --sysinfo=off"
                     % (AVOCADO, self.tmpdir))
         result = process.run(cmd_line, ignore_status=True)
-        output = result.stdout + result.stderr
+        output = result.stdout_text + result.stderr_text
         expected_rc = exit_codes.AVOCADO_TESTS_FAIL
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %d:\n%s" %
@@ -469,7 +469,7 @@ class OutputPluginTest(unittest.TestCase):
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %d:\n%s" %
                          (expected_rc, result))
-        job_id_list = re.findall('Job ID: (.*)', result.stdout,
+        job_id_list = re.findall('Job ID: (.*)', result.stdout_text,
                                  re.MULTILINE)
         self.assertTrue(job_id_list, 'No Job ID in stdout:\n%s' %
                         result.stdout)
@@ -487,7 +487,7 @@ class OutputPluginTest(unittest.TestCase):
         self.assertEqual(result.exit_status, expected_rc,
                          "Avocado did not return rc %d:\n%s" %
                          (expected_rc, result))
-        self.assertEqual(output, "")
+        self.assertEqual(output, b"")
 
     def test_default_enabled_plugins(self):
         cmd_line = ('%s run --job-results-dir %s --sysinfo=off '
@@ -588,7 +588,7 @@ class OutputPluginTest(unittest.TestCase):
             self.assertEqual(result.exit_status, expected_rc,
                              "Avocado did not return rc %d:\n%s" %
                              (expected_rc, result))
-            self.assertEqual(output, '',
+            self.assertEqual(output, b'',
                              'After redirecting to file, output is not empty: %s' % output)
             with open(redirected_output_path, 'r') as redirected_output_file_obj:
                 redirected_output = redirected_output_file_obj.read()
@@ -617,7 +617,7 @@ class OutputPluginTest(unittest.TestCase):
                     "--job-results-dir %s "
                     "--tap -" % (AVOCADO, self.tmpdir))
         result = process.run(cmd_line)
-        expr = '1..4'
+        expr = b'1..4'
         self.assertIn(expr, result.stdout, "'%s' not found in:\n%s"
                       % (expr, result.stdout))
 
@@ -630,9 +630,9 @@ class OutputPluginTest(unittest.TestCase):
                          ("avocado run to broken pipe did not return "
                           "rc %d:\n%s" % (expected_rc, result)))
         self.assertEqual(len(result.stderr.splitlines()), 1)
-        self.assertIn("whacky-unknown-command", result.stderr)
-        self.assertIn("not found", result.stderr)
-        self.assertNotIn("Avocado crashed", result.stderr)
+        self.assertIn(b"whacky-unknown-command", result.stderr)
+        self.assertIn(b"not found", result.stderr)
+        self.assertNotIn(b"Avocado crashed", result.stderr)
 
     def test_results_plugins_no_tests(self):
         cmd_line = ("%s run UNEXISTING --job-results-dir %s"
@@ -650,11 +650,11 @@ class OutputPluginTest(unittest.TestCase):
         self.assertFalse(os.path.exists(tap_results))
 
         # Check that no UI output was generated
-        self.assertNotIn("RESULTS    : PASS ", result.stdout)
-        self.assertNotIn("JOB TIME   :", result.stdout)
+        self.assertNotIn(b"RESULTS    : PASS ", result.stdout)
+        self.assertNotIn(b"JOB TIME   :", result.stdout)
 
         # Check that plugins do not produce errors
-        self.assertNotIn("Error running method ", result.stderr)
+        self.assertNotIn(b"Error running method ", result.stderr)
 
     def tearDown(self):
         shutil.rmtree(self.tmpdir)

selftests/functional/test_plugin_diff.py

@@ -50,20 +50,16 @@ class DiffTests(unittest.TestCase):
                     (AVOCADO, self.jobdir, self.jobdir2))
         expected_rc = exit_codes.AVOCADO_ALL_OK
         result = self.run_and_check(cmd_line, expected_rc)
-        msg = "# COMMAND LINE"
-        self.assertIn(msg, result.stdout)
-        msg = "-./scripts/avocado run"
-        self.assertIn(msg, result.stdout)
-        msg = "+./scripts/avocado run"
-        self.assertIn(msg, result.stdout)
+        self.assertIn(b"# COMMAND LINE", result.stdout)
+        self.assertIn(b"-./scripts/avocado run", result.stdout)
+        self.assertIn(b"+./scripts/avocado run", result.stdout)
 
     def test_diff_nocmdline(self):
         cmd_line = ('%s diff %s %s --diff-filter nocmdline' %
                     (AVOCADO, self.jobdir, self.jobdir2))
         expected_rc = exit_codes.AVOCADO_ALL_OK
         result = self.run_and_check(cmd_line, expected_rc)
-        msg = "# COMMAND LINE"
-        self.assertNotIn(msg, result.stdout)
+        self.assertNotIn(b"# COMMAND LINE", result.stdout)
 
     def tearDown(self):
         shutil.rmtree(self.tmpdir)

selftests/functional/test_plugin_jobscripts.py

@@ -79,9 +79,9 @@ class JobScriptsTest(unittest.TestCase):
         # Pre/Post scripts failures do not (currently?) alter the exit status
         self.assertEqual(result.exit_status, exit_codes.AVOCADO_ALL_OK)
         self.assertNotIn('Pre job script "%s" exited with status "1"' % touch_script,
-                         result.stderr)
+                         result.stderr_text)
         self.assertNotIn('Post job script "%s" exited with status "1"' % rm_script,
-                         result.stderr)
+                         result.stderr_text)
 
     def test_status_non_zero(self):
         """
@@ -102,7 +102,7 @@ class JobScriptsTest(unittest.TestCase):
         # Pre/Post scripts failures do not (currently?) alter the exit status
         self.assertEqual(result.exit_status, exit_codes.AVOCADO_ALL_OK)
         self.assertEqual('Pre job script "%s" exited with status "1"\n' % non_zero_script,
-                         result.stderr)
+                         result.stderr_text)
 
     def test_non_existing_dir(self):
         """
@@ -124,9 +124,9 @@ class JobScriptsTest(unittest.TestCase):
 
         # Pre/Post scripts failures do not (currently?) alter the exit status
         self.assertEqual(result.exit_status, exit_codes.AVOCADO_ALL_OK)
-        self.assertIn('-job scripts has not been found', result.stderr)
+        self.assertIn(b'-job scripts has not been found', result.stderr)
         self.assertNotIn('Pre job script "%s" exited with status "1"' % non_zero_script,
-                         result.stderr)
+                         result.stderr_text)
 
     def tearDown(self):
         shutil.rmtree(self.tmpdir)

selftests/functional/test_replay_basic.py

@@ -106,8 +106,8 @@ class ReplayTests(unittest.TestCase):
                     % (AVOCADO, self.jobid, self.tmpdir))
         expected_rc = exit_codes.AVOCADO_FAIL
         result = self.run_and_check(cmd_line, expected_rc)
-        msg = 'Invalid --replay-ignore option. Valid options are ' \
-              '(more than one allowed): variants,config'
+        msg = (b'Invalid --replay-ignore option. Valid options are '
+               b'(more than one allowed): variants,config')
         self.assertIn(msg, result.stderr)
 
     def test_run_replay_ignorevariants(self):
@@ -119,7 +119,7 @@ class ReplayTests(unittest.TestCase):
                     % (AVOCADO, self.jobid, self.tmpdir))
         expected_rc = exit_codes.AVOCADO_ALL_OK
         result = self.run_and_check(cmd_line, expected_rc)
-        msg = 'Ignoring variants from source job with --replay-ignore.'
+        msg = b'Ignoring variants from source job with --replay-ignore.'
         self.assertIn(msg, result.stderr)
 
     def test_run_replay_invalidstatus(self):
@@ -131,8 +131,8 @@ class ReplayTests(unittest.TestCase):
                     % (AVOCADO, self.jobid, self.tmpdir))
         expected_rc = exit_codes.AVOCADO_FAIL
         result = self.run_and_check(cmd_line, expected_rc)
-        msg = 'Invalid --replay-test-status option. Valid options are (more ' \
-              'than one allowed): SKIP,ERROR,FAIL,WARN,PASS,INTERRUPTED'
+        msg = (b'Invalid --replay-test-status option. Valid options are (more '
+               b'than one allowed): SKIP,ERROR,FAIL,WARN,PASS,INTERRUPTED')
         self.assertIn(msg, result.stderr)
 
     def test_run_replay_statusfail(self):
@@ -144,7 +144,8 @@ class ReplayTests(unittest.TestCase):
                     % (AVOCADO, self.jobid, self.tmpdir))
         expected_rc = exit_codes.AVOCADO_ALL_OK
         result = self.run_and_check(cmd_line, expected_rc)
-        msg = 'RESULTS    : PASS 0 | ERROR 0 | FAIL 0 | SKIP 4 | WARN 0 | INTERRUPT 0'
+        msg = (b'RESULTS    : PASS 0 | ERROR 0 | FAIL 0 | SKIP 4 | WARN 0 | '
+               b'INTERRUPT 0')
         self.assertIn(msg, result.stdout)
 
     def test_run_replay_remotefail(self):
@@ -156,7 +157,7 @@ class ReplayTests(unittest.TestCase):
                     % (AVOCADO, self.jobid, self.tmpdir))
         expected_rc = exit_codes.AVOCADO_FAIL
         result = self.run_and_check(cmd_line, expected_rc)
-        msg = "Currently we don't replay jobs in remote hosts."
+        msg = b"Currently we don't replay jobs in remote hosts."
         self.assertIn(msg, result.stderr)
 
     def test_run_replay_status_and_variants(self):
@@ -168,8 +169,8 @@ class ReplayTests(unittest.TestCase):
                     '--sysinfo=off' % (AVOCADO, self.jobid, self.tmpdir))
         expected_rc = exit_codes.AVOCADO_FAIL
         result = self.run_and_check(cmd_line, expected_rc)
-        msg = ("Option `--replay-test-status` is incompatible with "
-               "`--replay-ignore variants`")
+        msg = (b"Option `--replay-test-status` is incompatible with "
+               b"`--replay-ignore variants`")
         self.assertIn(msg, result.stderr)
 
     def test_run_replay_status_and_references(self):
@@ -181,8 +182,8 @@ class ReplayTests(unittest.TestCase):
                     '--sysinfo=off' % (AVOCADO, self.jobid, self.tmpdir))
         expected_rc = exit_codes.AVOCADO_FAIL
         result = self.run_and_check(cmd_line, expected_rc)
-        msg = ("Option --replay-test-status is incompatible with "
-               "test references given on the command line.")
+        msg = (b"Option --replay-test-status is incompatible with "
+               b"test references given on the command line.")
         self.assertIn(msg, result.stderr)
 
     def test_run_replay_and_mux(self):

selftests/functional/test_replay_external_runner.py

@@ -47,8 +47,8 @@ class ReplayExtRunnerTests(unittest.TestCase):
                     % (AVOCADO, self.jobid, self.tmpdir))
         expected_rc = exit_codes.AVOCADO_ALL_OK
         result = self.run_and_check(cmd_line, expected_rc)
-        msg = "Overriding the replay external-runner with the "\
-              "--external-runner value given on the command line."
+        msg = (b"Overriding the replay external-runner with the "
+               b"--external-runner value given on the command line.")
         self.assertIn(msg, result.stderr)
 
     def tearDown(self):

selftests/functional/test_replay_failfast.py

@@ -49,7 +49,8 @@ class ReplayFailfastTests(unittest.TestCase):
                     % (AVOCADO, self.jobid, self.tmpdir))
         expected_rc = exit_codes.AVOCADO_TESTS_FAIL
         result = self.run_and_check(cmd_line, expected_rc)
-        msg = 'Overriding the replay failfast with the --failfast value given on the command line.'
+        msg = (b'Overriding the replay failfast with the --failfast value '
+               b'given on the command line.')
         self.assertIn(msg, result.stderr)
 
     def tearDown(self):

selftests/functional/test_standalone.py

@@ -50,7 +50,7 @@ class StandaloneTests(unittest.TestCase):
             exc = "errortest_nasty.NastyException: Nasty-string-like-exception"
         else:
             exc = "NastyException: Nasty-string-like-exception"
-        count = result.stdout.count("\n%s" % exc)
+        count = result.stdout_text.count("\n%s" % exc)
         self.assertEqual(count, 2, "Exception \\n%s should be present twice in"
                          "the log (once from the log, second time when parsing"
                          "exception details." % (exc))
@@ -59,17 +59,17 @@ class StandaloneTests(unittest.TestCase):
         cmd_line = './examples/tests/errortest_nasty2.py -r'
         expected_rc = exit_codes.AVOCADO_TESTS_FAIL
         result = self.run_and_check(cmd_line, expected_rc, 'errortest_nasty2')
-        self.assertIn("Exception: Unable to get exception, check the traceback"
-                      " for details.", result.stdout)
+        self.assertIn(b"Exception: Unable to get exception, check the traceback"
+                      b" for details.", result.stdout)
 
     def test_errortest_nasty3(self):
         cmd_line = './examples/tests/errortest_nasty3.py -r'
         expected_rc = exit_codes.AVOCADO_TESTS_FAIL
         result = self.run_and_check(cmd_line, expected_rc, 'errortest_nasty3')
         if sys.version_info[0] == 3:
-            exc = "TypeError: exceptions must derive from BaseException"
+            exc = b"TypeError: exceptions must derive from BaseException"
         else:
-            exc = "TestError: <errortest_nasty3.NastyException instance at "
+            exc = b"TestError: <errortest_nasty3.NastyException instance at "
         self.assertIn(exc, result.stdout)
 
     def test_errortest(self):

selftests/functional/test_streams.py

@@ -25,8 +25,8 @@ class StreamsTest(unittest.TestCase):
         """
         result = process.run('%s distro' % AVOCADO)
         self.assertEqual(result.exit_status, exit_codes.AVOCADO_ALL_OK)
-        self.assertIn('Detected distribution', result.stdout)
-        self.assertEqual('', result.stderr)
+        self.assertIn(b'Detected distribution', result.stdout)
+        self.assertEqual(b'', result.stderr)
 
     def test_app_error_stderr(self):
         """
@@ -35,12 +35,12 @@ class StreamsTest(unittest.TestCase):
         result = process.run('%s unknown-whacky-command' % AVOCADO,
                              ignore_status=True)
         self.assertEqual(result.exit_status, exit_codes.AVOCADO_FAIL)
-        self.assertIn("invalid choice: 'unknown-whacky-command'",
+        self.assertIn(b"invalid choice: 'unknown-whacky-command'",
                       result.stderr)
-        self.assertNotIn("invalid choice: 'unknown-whacky-command'",
+        self.assertNotIn(b"invalid choice: 'unknown-whacky-command'",
                          result.stdout)
-        self.assertIn("Avocado Test Runner", result.stdout)
-        self.assertNotIn("Avocado Test Runner", result.stderr)
+        self.assertIn(b"Avocado Test Runner", result.stdout)
+        self.assertNotIn(b"Avocado Test Runner", result.stderr)
 
     def test_other_stream_early_stdout(self):
         """
@@ -58,11 +58,11 @@ class StreamsTest(unittest.TestCase):
         for cmd, env in cmds:
             result = process.run(cmd, env=env, shell=True)
             self.assertEqual(result.exit_status, exit_codes.AVOCADO_ALL_OK)
-            self.assertIn("stevedore.extension: found extension EntryPoint.parse",
+            self.assertIn(b"stevedore.extension: found extension EntryPoint.parse",
                           result.stdout)
             self.assertIn("avocado.test: Command line: %s" % cmd,
-                          result.stdout)
-            self.assertEqual('', result.stderr)
+                          result.stdout_text)
+            self.assertEqual(b'', result.stderr)
 
     def test_test(self):
         """
@@ -76,16 +76,16 @@ class StreamsTest(unittest.TestCase):
                      ' passtest.py' % (AVOCADO, self.tmpdir))):
             result = process.run(cmd)
             self.assertEqual(result.exit_status, exit_codes.AVOCADO_ALL_OK)
-            self.assertNotIn("stevedore.extension: found extension EntryPoint.parse",
+            self.assertNotIn(b"stevedore.extension: found extension EntryPoint.parse",
                              result.stdout)
-            self.assertNotIn("stevedore.extension: found extension EntryPoint.parse",
+            self.assertNotIn(b"stevedore.extension: found extension EntryPoint.parse",
                              result.stderr)
             self.assertIn("Command line: %s" % cmd,
+                          result.stdout_text)
+            self.assertIn(b"\nSTART 1-passtest.py:PassTest.test",
                           result.stdout)
-            self.assertIn("\nSTART 1-passtest.py:PassTest.test",
-                          result.stdout)
-            self.assertIn("PASS 1-passtest.py:PassTest.test", result.stdout)
-            self.assertEqual('', result.stderr)
+            self.assertIn(b"PASS 1-passtest.py:PassTest.test", result.stdout)
+            self.assertEqual(b'', result.stderr)
 
     def test_none_success(self):
         """
@@ -99,8 +99,8 @@ class StreamsTest(unittest.TestCase):
                      'passtest.py' % (AVOCADO, self.tmpdir))):
             result = process.run(cmd)
             self.assertEqual(result.exit_status, exit_codes.AVOCADO_ALL_OK)
-            self.assertEqual('', result.stdout)
-            self.assertEqual('', result.stderr)
+            self.assertEqual(b'', result.stdout)
+            self.assertEqual(b'', result.stderr)
 
     def test_none_error(self):
         """
@@ -112,8 +112,8 @@ class StreamsTest(unittest.TestCase):
                     '%s --silent unknown-whacky-command' % AVOCADO):
             result = process.run(cmd, ignore_status=True)
             self.assertEqual(result.exit_status, exit_codes.AVOCADO_FAIL)
-            self.assertEqual('', result.stdout)
-            self.assertNotEqual('', result.stderr)
+            self.assertEqual(b'', result.stdout)
+            self.assertNotEqual(b'', result.stderr)
 
     def test_custom_stream_and_level(self):
         """

selftests/functional/test_sysinfo.py

@@ -35,7 +35,7 @@ class SysInfoTest(unittest.TestCase):
         expected_rc = exit_codes.AVOCADO_ALL_OK
         self.assertEqual(result.exit_status, expected_rc,
                          'Avocado did not return rc %d:\n%s' % (expected_rc, result))
-        output = result.stdout + result.stderr
+        output = result.stdout_text + result.stderr_text
         sysinfo_dir = None
         for line in output.splitlines():
             if 'JOB LOG' in line:
@@ -61,7 +61,7 @@ class SysInfoTest(unittest.TestCase):
         expected_rc = exit_codes.AVOCADO_ALL_OK
         self.assertEqual(result.exit_status, expected_rc,
                          'Avocado did not return rc %d:\n%s' % (expected_rc, result))
-        output = result.stdout + result.stderr
+        output = result.stdout_text + result.stderr_text
         sysinfo_dir = None
         for line in output.splitlines():
             if 'JOB LOG' in line:

selftests/functional/test_unittest_compat.py

@@ -91,23 +91,23 @@ class UnittestCompat(unittest.TestCase):
         cmd_line = '%s %s' % (sys.executable, self.unittest_script_good)
         result = process.run(cmd_line)
         self.assertEqual(0, result.exit_status)
-        self.assertIn('Ran 1 test in', result.stderr)
+        self.assertIn(b'Ran 1 test in', result.stderr)
 
     def test_run_fail(self):
         cmd_line = '%s %s' % (sys.executable, self.unittest_script_fail)
         result = process.run(cmd_line, ignore_status=True)
         self.assertEqual(1, result.exit_status)
-        self.assertIn('Ran 1 test in', result.stderr)
-        self.assertIn('This test is supposed to fail', result.stderr)
-        self.assertIn('FAILED (failures=1)', result.stderr)
+        self.assertIn(b'Ran 1 test in', result.stderr)
+        self.assertIn(b'This test is supposed to fail', result.stderr)
+        self.assertIn(b'FAILED (failures=1)', result.stderr)
 
     def test_run_error(self):
         cmd_line = '%s %s' % (sys.executable, self.unittest_script_error)
         result = process.run(cmd_line, ignore_status=True)
         self.assertEqual(1, result.exit_status)
-        self.assertIn('Ran 1 test in', result.stderr)
-        self.assertIn('This test is supposed to error', result.stderr)
-        self.assertIn('FAILED (errors=1)', result.stderr)
+        self.assertIn(b'Ran 1 test in', result.stderr)
+        self.assertIn(b'This test is supposed to error', result.stderr)
+        self.assertIn(b'FAILED (errors=1)', result.stderr)
 
     def tearDown(self):
         self.unittest_script_error.remove()

selftests/functional/test_utils.py

@@ -152,7 +152,7 @@ class ProcessTest(unittest.TestCase):
         proc = process.SubProcess(self.fake_uptime)
         result = proc.run()
         self.assertEqual(result.exit_status, 0, 'result: %s' % result)
-        self.assertIn('load average', result.stdout)
+        self.assertIn(b'load average', result.stdout)
 
     def tearDown(self):
         shutil.rmtree(self.base_logdir)

selftests/unit/test_utils_iso9660.py

@@ -30,7 +30,7 @@ class BaseIso9660(unittest.TestCase):
                   due to ast loader we can't just define a base-class.
         """
         self.assertEqual(self.iso.read("file"),
-                         "file content\n")
+                         b"file content\n")
         dst = os.path.join(self.tmpdir, "file")
         self.iso.copy(os.path.join("Dir", "in_dir_file"), dst)
         self.assertEqual(open(dst).read(), "content of in-dir-file\n")
@@ -49,10 +49,11 @@ class BaseIso9660(unittest.TestCase):
         base = self.iso.mnt_dir
         dir_path = os.path.join(base, "Dir")
         self.assertTrue(os.path.isdir(dir_path))
-        self.assertEqual(open(os.path.join(base, "file")).read(),
-                         "file content\n")
-        self.assertEqual(open(os.path.join(base, "Dir", "in_dir_file")).read(),
-                         "content of in-dir-file\n")
+        self.assertEqual(bytes(open(os.path.join(base, "file"), 'rb').read()),
+                         b"file content\n")
+        in_dir_file_path = os.path.join(base, "Dir", "in_dir_file")
+        self.assertEqual(bytes(open(in_dir_file_path, 'rb').read()),
+                         b"content of in-dir-file\n")
         self.iso.close()
         self.assertFalse(os.path.exists(base), "the mnt_dir is suppose to be "
                          "destroyed after iso.close()")