Add a test for pickling (only Py3, not supported with Py2)

  - Added __eq__ on Parser class
  - Add test_parser_pickling test (skip Py2 and parsers with schema)
  - Updated changelog

CHANGELOG.rst

@@ -2,29 +2,54 @@
 CHANGELOG
 *********
 
-v1.0.5
-======
+`1.0.8_` (2018-06-13)
+=====================
+* Fixed token classes creation for parsers serialization
+
+`1.0.7_` (2018-05-07)
+=====================
+* Added autodoc based manual with Sphinx
+
+`1.0.6_` (2018-05-02)
+=====================
+* Added tox testing
+* Improved the parser class with raw_advance method
+
+`1.0.5`_ (2018-03-31)
+=====================
 * Added n.10 XPath 2.0 functions for strings
 * Fix README.rst for right rendering in PyPI
 * Added ElementPathMissingContextError exception for a correct
 handling of static context evaluation
 
-v1.0.4
-======
+`v1.0.4`_ (2018-03-27)
+======================
 * Fixed packaging ('packages' argument in setup.py).
 
-v1.0.3
-======
+`v1.0.3`_ (2018-03-27)
+======================
 * Fixed the effective boolean value for a list containing an empty string.
 
-v1.0.2
-======
+`v1.0.2`_ (2018-03-27)
+======================
 * Add QName parsing like in the ElementPath library (usage regulated by a *strict* flag).
 
-v1.0.1
-======
+`v1.0.1`_ (2018-03-27)
+======================
 * Some bug fixes for attributes selection.
 
-v1.0
-====
+`v1.0.0`_ (2018-03-26)
+====================
 * First stable version.
+
+
+.. _1.0.0: https://github.com/brunato/elementpath/commit/b28da83
+.. _1.0.1: https://github.com/brunato/elementpath/compare/1.0.0...1.0.1
+.. _1.0.2: https://github.com/brunato/elementpath/compare/1.0.1...1.0.2
+.. _1.0.3: https://github.com/brunato/elementpath/compare/1.0.2...1.0.3
+.. _1.0.4: https://github.com/brunato/elementpath/compare/1.0.3...1.0.4
+.. _1.0.5: https://github.com/brunato/elementpath/compare/1.0.4...1.0.5
+.. _1.0.6: https://github.com/brunato/elementpath/compare/1.0.5...1.0.6
+.. _1.0.7: https://github.com/brunato/elementpath/compare/1.0.6...1.0.7
+.. _1.0.8: https://github.com/brunato/elementpath/compare/1.0.7...1.0.8
+

elementpath/tdop_parser.py

@@ -247,6 +247,16 @@ def __init__(self):
         self.tokens = iter(())
         self.source = ''
 
+    def __eq__(self, other):
+        if self.token_base_class != other.token_base_class:
+            return False
+        elif self.SYMBOLS != other.SYMBOLS:
+            return False
+        elif self.symbol_table != other.symbol_table:
+            return False
+        else:
+            return True
+
     def parse(self, source):
         """
         Parses a source code of the formal language. This is the main method that has to be

tests/test_elementpath.py

@@ -13,6 +13,7 @@
 import sys
 import io
 import math
+import pickle
 from decimal import Decimal
 from collections import namedtuple
 from xml.etree import ElementTree
@@ -120,6 +121,8 @@ def setUpClass(cls):
         cls.parser = XPath1Parser(namespaces=cls.namespaces, variables=cls.variables, strict=True)
         cls.etree = ElementTree
 
+    #
+    # Helper methods
     def check_tokenizer(self, path, expected):
         """Check the list of tokens generated by the tokenizer."""
         self.assertEqual([
@@ -201,6 +204,15 @@ def wrong_type(self, path):
     def wrong_name(self, path):
         self.assertRaises(ElementPathNameError, self.parser.parse, path)
 
+    #
+    # Test methods
+    @unittest.skipIf(sys.version_info < (3,), "Python 2 pickling is not supported.")
+    def test_parser_pickling(self):
+        if getattr(self.parser, 'schema', None) is None:
+            obj = pickle.dumps(self.parser)
+            parser = pickle.loads(obj)
+            self.assertEqual(self.parser, parser)
+
     def test_xpath_tokenizer(self):
         # tests from the XPath specification
         self.check_tokenizer("*", ['*'])