Replace nose to nose2

because nose is in deprecation[1] so we need to
use nose2, or pytests instead. This commit
suggests to use nose2 and fix some import errors
on slow attribute according to the docs [2]

1: https://nose.readthedocs.io/en/latest/#note-to-users
2: https://docs.nose2.io/en/latest/plugins/attrib.html
Change-Id: Idc0c8c146a9ac7fa7ffd90793211422571852d82

.functests

@@ -19,7 +19,7 @@ ant build_storlets
 SRC_DIR=$(cd $(dirname $0); pwd)
 cd ${SRC_DIR}/tests/functional
 if [ "$FLAVOR" == "jenkins" ]; then
-    nosetests --exe -v ${@:2}
+    nose2 -v ${@:2}
 else
-    nosetests --exe -v -a '!slow' ${@:2}
+    nose2 -v -A '!slow' ${@:2}
 fi

doc/source/s2aio_dev_host_include.rst

@@ -4,7 +4,7 @@ With that user just do:
 ::
 
     sudo apt-get update
-    sudo apt-get install python-tox python-nose git
+    sudo apt-get install python-tox git
     git clone https://opendev.org/openstack/storlets.git
     cd storlets
     ./s2aio.sh install

nose2.cfg

@@ -0,0 +1,2 @@
+[unittest]
+plugins = nose2.plugins.attrib

playbooks/storlets-functional/pre.yaml

@@ -6,7 +6,6 @@
       with_items:
         - python3
         - python3-venv
-        - python3-nose
         - python3-pip
       become: yes
 

test-requirements.txt

@@ -5,7 +5,7 @@
 hacking>=3.0.1,<3.1.0 # Apache-2.0
 
 coverage>=3.6
-nose
+nose2
 pexpect
 python-subunit>=0.0.18
 oslotest>=1.2.0  # Apache-2.0

tests/functional/java/test_SLO.py

@@ -19,7 +19,6 @@ import os
 import random
 import string
 from swiftclient import client as c
-from nose.plugins.attrib import attr
 from tests.functional.java import StorletJavaFunctionalTest
 import unittest
 
@@ -139,7 +138,6 @@ class TestSLO(StorletJavaFunctionalTest):
                         f.close()
                     self.ssertEqual(chunk, aux_content)
 
-    @attr('slow')
     def test_get_SLO(self):
         headers = {'X-Run-Storlet': self.storlet_name}
         headers.update(self.additional_headers)
@@ -152,6 +150,8 @@ class TestSLO(StorletJavaFunctionalTest):
                                      headers=headers)
         self.compare_slo_to_chunks(body)
 
+    test_get_SLO.slo = 1
+
 
 class TestSloOnProxy(TestSLO):
     def setUp(self):

tests/functional/java/test_identity_storlet.py

@@ -18,7 +18,6 @@ import os
 import random
 import string
 from swiftclient import client as c
-from nose.plugins.attrib import attr
 from contextlib import contextmanager
 from tests.functional.java import StorletJavaFunctionalTest
 import unittest
@@ -127,7 +126,6 @@ class TestIdentityStorlet(StorletJavaFunctionalTest):
             except Exception:
                 pass
 
-    @attr('slow')
     def test_put_10MB_file(self):
         gf_file_path = '/tmp/10MB_file'
         with self._filecontext(gf_file_path):
@@ -149,6 +147,8 @@ class TestIdentityStorlet(StorletJavaFunctionalTest):
             status = response.get('status')
             self.assertIn(status, [200, 201])
 
+    test_put_10MB_file.slow = 1
+
     def test_put(self):
         self.invoke_storlet('PUT')
 

tests/functional/java/test_test_storlet.py

@@ -17,7 +17,6 @@
 import threading
 from swiftclient import client as swift_client
 from swiftclient import ClientException
-from nose.plugins.attrib import attr
 from storlets.tools.utils import get_member_auth
 from tests.functional.java import StorletJavaFunctionalTest
 import unittest
@@ -100,10 +99,11 @@ class TestTestStorlet(StorletJavaFunctionalTest):
     def test_crash(self):
         self.invokeTestStorlet("crash")
 
-    @attr('slow')
     def test_hold(self):
         self.invokeTestStorlet("hold")
 
+    test_hold.slow = 1
+
     def invokeTestStorletinParallel(self):
         mythreads = []
 
@@ -117,10 +117,11 @@ class TestTestStorlet(StorletJavaFunctionalTest):
         for t in mythreads:
             t.join()
 
-    @attr('slow')
     def test_parallel_print(self):
         self.invokeTestStorletinParallel()
 
+    test_parallel_print.slow = 1
+
     def test_storlet_acl_get_fail(self):
         headers = {'X-Run-Storlet': self.storlet_name}
         headers.update(self.additional_headers)

tests/functional/python/test_SLO.py

@@ -17,7 +17,6 @@ import json
 import random
 import string
 from swiftclient import client
-from nose.plugins.attrib import attr
 from tests.functional.python import StorletPythonFunctionalTest
 import unittest
 
@@ -104,7 +103,6 @@ class TestSLO(StorletPythonFunctionalTest):
                             aux_content += f.read()
                     self.asertEqual(chunk, aux_content)
 
-    @attr('slow')
     def test_get_SLO(self):
         headers = {'X-Run-Storlet': self.storlet_name}
         headers.update(self.additional_headers)
@@ -117,6 +115,8 @@ class TestSLO(StorletPythonFunctionalTest):
                                           headers=headers)
         self.compare_slo_to_chunks(body)
 
+    test_get_SLO.slow = 1
+
 
 class TestSLOOnProxy(TestSLO):
     def setUp(self):

tests/functional/python/test_simple_storlet.py

@@ -16,7 +16,6 @@
 import os
 import tempfile
 from swiftclient import client
-from nose.plugins.attrib import attr
 from tests.functional.python import StorletPythonFunctionalTest
 import unittest
 from urllib.request import Request, urlopen
@@ -79,7 +78,6 @@ class TestSimpleStorlet(StorletPythonFunctionalTest):
             response_dict=resp)
         self.assertEqual(204, resp['status'])
 
-    @attr('slow')
     def test_put_10MB_file(self):
         with tempfile.NamedTemporaryFile() as f:
             with open(f.name, 'wb') as wf:
@@ -99,6 +97,8 @@ class TestSimpleStorlet(StorletPythonFunctionalTest):
             status = response.get('status')
             self.assertEqual(201, status)
 
+    test_put_10MB_file.slow = 1
+
     def test_copy_from(self):
         resp = dict()
         objname = self.storlet_file + '-copy'

tests/functional/python/test_test_storlet.py

@@ -16,7 +16,6 @@
 import threading
 from swiftclient import client as swift_client
 from swiftclient import ClientException
-from nose.plugins.attrib import attr
 from storlets.tools.utils import get_member_auth
 from tests.functional.python import StorletPythonFunctionalTest
 import unittest
@@ -89,10 +88,11 @@ class TestTestStorlet(StorletPythonFunctionalTest):
     def test_crash(self):
         self.invoke_storlet("crash")
 
-    @attr('slow')
     def test_hold(self):
         self.invoke_storlet("hold")
 
+    test_hold.slow = 1
+
     def invoke_storlet_in_parallel(self):
         mythreads = []
 
@@ -106,10 +106,11 @@ class TestTestStorlet(StorletPythonFunctionalTest):
         for t in mythreads:
             t.join()
 
-    @attr('slow')
     def test_parallel_print(self):
         self.invoke_storlet_in_parallel()
 
+    test_parallel_print.slow = 1
+
     def test_storlet_acl_get_fail(self):
         headers = {'X-Run-Storlet': self.storlet_name}
         headers.update(self.additional_headers)