maintenance: remove unittest from test_rdfprint

Author: psafont

tests/test_rdfprint.py

@@ -1,29 +1,26 @@
-from __future__ import absolute_import
-
 import os
 import sys
-import unittest
 
 from cwltool.main import main
 from cwltool.utils import subprocess
 
 from .util import get_data
 
 
-class RDFPrint(unittest.TestCase):
-    """ Test `cwltool --print-rdf`. """
-
-    def test_rdf_print(self):
-        """Basic test of --print-rdf."""
-        self.assertEqual(main(['--print-rdf',
-                               get_data('tests/wf/hello_single_tool.cwl')]), 0)
+def test_rdf_print():
+    assert main(['--print-rdf', get_data('tests/wf/hello_single_tool.cwl')]) == 0
 
-    def test_rdf_print_unicode(self):
-        """Force ASCII encoding but load UTF file with --print-rdf."""
+def test_rdf_print_unicode():
+    """Force ASCII encoding but load UTF file with --print-rdf."""
+    try:
         lc_all = os.environ.get("LC_ALL", None)
         os.environ["LC_ALL"] = "C"
-        self.assertEqual(subprocess.check_call(
-            [sys.executable, "-m", "cwltool", '--print-rdf',
-             get_data('tests/utf_doc_example.cwl')]), 0)
+
+        params = [sys.executable,
+                  "-m", "cwltool", '--print-rdf',
+                  get_data('tests/utf_doc_example.cwl')]
+
+        assert subprocess.check_call(params) == 0
+    finally:
         if lc_all:
             os.environ["LC_ALL"] = lc_all