Switching to pytest

- nose no longer works on Python 3.10 and the maintainer
  cannot be bothered to learn how nose2 wants to work

Author: mwatts15

test-requirements.txt

@@ -1,4 +1,3 @@
 flake8
 mock==3.0.5 ; python_version=="2.7"
-nose2[coverage_plugin]
 tox

test/test_sqlalchemy_mysql.py

@@ -2,7 +2,7 @@
 import os
 import unittest
 
-from nose import SkipTest
+import pytest
 from rdflib import Literal
 from rdflib.graph import ConjunctiveGraph as Graph
 from six import PY3
@@ -19,18 +19,21 @@
         assert mysql
         dialect = "mysqlconnector"
     except ImportError:
-        raise SkipTest("MySQL-connector not found, skipping MySQL tests")
+        pytest.skip("MySQL-connector not found, skipping MySQL tests",
+                allow_module_level=True)
 else:
     try:
         import MySQLdb
         assert MySQLdb
         dialect = "mysqldb"
     except ImportError:
-        raise SkipTest("MySQLdb not found, skipping MySQL tests")
+        pytest.skip("MySQLdb not found, skipping MySQL tests",
+                allow_module_level=True)
 
 
 if os.environ.get("DB") != "mysql":
-    raise SkipTest("MySQL not under test")
+    pytest.skip("MySQL not under test",
+            allow_module_level=True)
 
 _logger = logging.getLogger(__name__)
 
@@ -67,7 +70,7 @@ def tearDown(self):
         super(SQLAMySQLContextTestCase, self).tearDown(uri=self.uri)
 
     def testLenInMultipleContexts(self):
-        raise SkipTest("Known issue.")
+        pytest.skip("Known issue.")
 
 
 class SQLAMySQLIssueTestCase(unittest.TestCase):

test/test_sqlalchemy_postgresql.py

@@ -2,18 +2,20 @@
 import os
 import unittest
 
-from nose import SkipTest
+import pytest
 try:
     import psycopg2  # noqa
+    assert psycopg2  # quiets unused import warning
 except ImportError:
-    raise SkipTest("psycopg2 not installed, skipping PgSQL tests")
+    pytest.skip("psycopg2 not installed, skipping PgSQL tests",
+            allow_module_level=True)
 
 from . import context_case
 from . import graph_case
 
 
 if os.environ.get("DB") != "pgsql":
-    raise SkipTest("PgSQL not under test")
+    pytest.skip("PgSQL not under test", allow_module_level=True)
 
 sqlalchemy_url = os.environ.get(
     "DBURI",
@@ -54,7 +56,7 @@ def tearDown(self):
         super(SQLAPgSQLContextTestCase, self).tearDown(uri=self.uri)
 
     def testLenInMultipleContexts(self):
-        raise SkipTest("Known issue.")
+        pytest.skip("Known issue.")
 
 
 SQLAPgSQLGraphTestCase.storetest = True

test/test_sqlalchemy_postgresql_pg8000.py

@@ -3,19 +3,20 @@
 import os
 import unittest
 
-from nose import SkipTest
+import pytest
 try:
     import pg8000
     assert pg8000 is not None
 except ImportError:
-    raise SkipTest("pg8000 not installed, skipping PgSQL tests")
+    pytest.skip("pg8000 not installed, skipping PgSQL tests",
+            allow_module_level=True)
 
 from . import context_case
 from . import graph_case
 
 
 if os.environ.get("DB") != "pgsql":
-    raise SkipTest("PgSQL not under test")
+    pytest.skip("PgSQL not under test", allow_module_level=True)
 
 _logger = logging.getLogger(__name__)
 
@@ -61,7 +62,7 @@ def tearDown(self):
 
     def testLenInMultipleContexts(self):
         """Test lin in multiple contexts, known issue."""
-        raise SkipTest("Known issue.")
+        pytest.skip("Known issue.")
 
 # SQLAPgSQLGraphTestCase.storetest = True
 # SQLAPgSQLContextTestCase.storetest = True

test/test_sqlalchemy_sqlite.py

@@ -2,15 +2,15 @@
 import os
 import unittest
 
-from nose import SkipTest
+import pytest
 from rdflib import Literal
 
 from . import context_case
 from . import graph_case
 
 
 if os.environ.get("DB") != "sqlite":
-    raise SkipTest("SQLite not under test")
+    pytest.skip("SQLite not under test", allow_module_level=True)
 
 _logger = logging.getLogger(__name__)
 
@@ -43,7 +43,7 @@ def tearDown(self):
         super(SQLASQLiteContextTestCase, self).tearDown(uri=self.uri)
 
     def testLenInMultipleContexts(self):
-        raise SkipTest("Known issue.")
+        pytest.skip("Known issue.")
 
 
 SQLASQLiteGraphTestCase.storetest = True

tox.ini

@@ -6,10 +6,11 @@ envlist =
 passenv = DB DBURI
 commands =
     {envpython} setup.py clean --all
-    nosetests --with-coverage --cover-package=rdflib_sqlalchemy \
-                --cover-inclusive --cover-branches
+    pytest --cov=rdflib_sqlalchemy
 
 deps =
+    pytest>=3.4.0
+    pytest-cov>=2.5.1
     psycopg2
     mysqlclient
     py{37,38,39,310}: mysql-connector
@@ -19,15 +20,6 @@ commands = flake8 rdflib_sqlalchemy test
 deps =
     flake8
 
-[testenv:cover]
-basepython = python3.7
-commands =
-    nosetests --with-coverage --cover-html --cover-html-dir=./coverage \
-                 --cover-package=rdflib_sqlalchemy --cover-inclusive
-deps =
-    psycopg2
-    mysqlclient
-
 [travis]
 python =
     2.7: py27, lint