--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ply-3.8/test/testyacc.py	Wed Mar 23 02:40:16 2016 +0000
@@ -0,0 +1,452 @@
+# testyacc.py
+
+import unittest
+try:
+    import StringIO
+except ImportError:
+    import io as StringIO
+
+import sys
+import os
+import warnings
+import re
+import platform
+
+sys.path.insert(0,"..")
+sys.tracebacklimit = 0
+
+import ply.yacc
+
+def make_pymodule_path(filename):
+    path = os.path.dirname(filename)
+    file = os.path.basename(filename)
+    mod, ext = os.path.splitext(file)
+
+    if sys.hexversion >= 0x3040000:
+        import importlib.util
+        fullpath = importlib.util.cache_from_source(filename, ext=='.pyc')
+    elif sys.hexversion >= 0x3020000:
+        import imp
+        modname = mod+"."+imp.get_tag()+ext
+        fullpath = os.path.join(path,'__pycache__',modname)
+    else:
+        fullpath = filename
+    return fullpath
+
+def pymodule_out_exists(filename):
+    return os.path.exists(make_pymodule_path(filename))
+
+def pymodule_out_remove(filename):
+    os.remove(make_pymodule_path(filename))
+
+def implementation():
+    if platform.system().startswith("Java"):
+        return "Jython"
+    elif hasattr(sys, "pypy_version_info"):
+        return "PyPy"
+    else:
+        return "CPython"
+
+# Check the output to see if it contains all of a set of expected output lines.
+# This alternate implementation looks weird, but is needed to properly handle
+# some variations in error message order that occurs due to dict hash table
+# randomization that was introduced in Python 3.3
+def check_expected(result, expected):
+    # Normalize 'state n' text to account for randomization effects in Python 3.3
+    expected = re.sub(r' state \d+', 'state <n>', expected)
+    result = re.sub(r' state \d+', 'state <n>', result)
+
+    resultlines = set()
+    for line in result.splitlines():
+        if line.startswith("WARNING: "):
+            line = line[9:]
+        elif line.startswith("ERROR: "):
+            line = line[7:]
+        resultlines.add(line)
+
+    # Selectively remove expected lines from the output
+    for eline in expected.splitlines():
+        resultlines = set(line for line in resultlines if not line.endswith(eline))
+
+    # Return True if no result lines remain
+    return not bool(resultlines)
+
+def run_import(module):
+    code = "import "+module
+    exec(code)
+    del sys.modules[module]
+    
+# Tests related to errors and warnings when building parsers
+class YaccErrorWarningTests(unittest.TestCase):
+    def setUp(self):
+        sys.stderr = StringIO.StringIO()
+        sys.stdout = StringIO.StringIO()
+        try:
+            os.remove("parsetab.py")
+            pymodule_out_remove("parsetab.pyc")
+        except OSError:
+            pass
+        
+        if sys.hexversion >= 0x3020000:
+            warnings.filterwarnings('ignore', category=ResourceWarning)
+        warnings.filterwarnings('ignore', category=DeprecationWarning)
+
+    def tearDown(self):
+        sys.stderr = sys.__stderr__
+        sys.stdout = sys.__stdout__
+    def test_yacc_badargs(self):
+        self.assertRaises(ply.yacc.YaccError,run_import,"yacc_badargs")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "yacc_badargs.py:23: Rule 'p_statement_assign' has too many arguments\n"
+                                    "yacc_badargs.py:27: Rule 'p_statement_expr' requires an argument\n"
+                                    ))        
+    def test_yacc_badid(self):
+        self.assertRaises(ply.yacc.YaccError,run_import,"yacc_badid")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "yacc_badid.py:32: Illegal name 'bad&rule' in rule 'statement'\n"
+                                    "yacc_badid.py:36: Illegal rule name 'bad&rule'\n"
+                                    ))
+
+    def test_yacc_badprec(self):
+        try:
+            run_import("yacc_badprec")
+        except ply.yacc.YaccError:
+            result = sys.stderr.getvalue()
+            self.assert_(check_expected(result,
+                                        "precedence must be a list or tuple\n"
+                                        ))
+    def test_yacc_badprec2(self):
+        self.assertRaises(ply.yacc.YaccError,run_import,"yacc_badprec2")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "Bad precedence table\n"
+                                    ))
+
+    def test_yacc_badprec3(self):
+        run_import("yacc_badprec3")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "Precedence already specified for terminal 'MINUS'\n"
+                                    "Generating LALR tables\n"
+
+                                    ))
+        
+    def test_yacc_badrule(self):
+        self.assertRaises(ply.yacc.YaccError,run_import,"yacc_badrule")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "yacc_badrule.py:24: Syntax error. Expected ':'\n"
+                                    "yacc_badrule.py:28: Syntax error in rule 'statement'\n"
+                                    "yacc_badrule.py:33: Syntax error. Expected ':'\n"
+                                    "yacc_badrule.py:42: Syntax error. Expected ':'\n"
+                                    ))
+
+    def test_yacc_badtok(self):
+        try:
+            run_import("yacc_badtok")
+        except ply.yacc.YaccError:
+            result = sys.stderr.getvalue()
+            self.assert_(check_expected(result,
+                                        "tokens must be a list or tuple\n"))
+
+    def test_yacc_dup(self):
+        run_import("yacc_dup")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "yacc_dup.py:27: Function p_statement redefined. Previously defined on line 23\n"
+                                    "Token 'EQUALS' defined, but not used\n"
+                                    "There is 1 unused token\n"
+                                    "Generating LALR tables\n"
+
+                                    ))
+    def test_yacc_error1(self):
+        try:
+            run_import("yacc_error1")
+        except ply.yacc.YaccError:
+            result = sys.stderr.getvalue()
+            self.assert_(check_expected(result,
+                                        "yacc_error1.py:61: p_error() requires 1 argument\n"))
+
+    def test_yacc_error2(self):
+        try:
+            run_import("yacc_error2")
+        except ply.yacc.YaccError:
+            result = sys.stderr.getvalue()
+            self.assert_(check_expected(result,
+                                        "yacc_error2.py:61: p_error() requires 1 argument\n"))
+
+    def test_yacc_error3(self):
+        try:
+            run_import("yacc_error3")
+        except ply.yacc.YaccError:
+            e = sys.exc_info()[1]
+            result = sys.stderr.getvalue()
+            self.assert_(check_expected(result,
+                                        "'p_error' defined, but is not a function or method\n"))
+            
+    def test_yacc_error4(self):
+        self.assertRaises(ply.yacc.YaccError,run_import,"yacc_error4")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "yacc_error4.py:62: Illegal rule name 'error'. Already defined as a token\n"
+                                    ))
+
+
+    def test_yacc_error5(self):
+        run_import("yacc_error5")
+        result = sys.stdout.getvalue()
+        self.assert_(check_expected(result,
+                                    "Group at 3:10 to 3:12\n"
+                                    "Undefined name 'a'\n"
+                                    "Syntax error at 'b'\n"
+                                    "Syntax error at 4:18 to 4:22\n"
+                                    "Assignment Error at 2:5 to 5:27\n"
+                                    "13\n"
+            ))
+
+    def test_yacc_error6(self):
+        run_import("yacc_error6")
+        result = sys.stdout.getvalue()
+        self.assert_(check_expected(result,
+                                    "a=7\n"
+                                    "Line 3: Syntax error at '*'\n"
+                                    "c=21\n"
+            ))
+
+    def test_yacc_error7(self):
+        run_import("yacc_error7")
+        result = sys.stdout.getvalue()
+        self.assert_(check_expected(result,
+                                    "a=7\n"
+                                    "Line 3: Syntax error at '*'\n"
+                                    "c=21\n"
+            ))
+
+    def test_yacc_inf(self):
+        self.assertRaises(ply.yacc.YaccError,run_import,"yacc_inf")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "Token 'NUMBER' defined, but not used\n"
+                                    "There is 1 unused token\n"
+                                    "Infinite recursion detected for symbol 'statement'\n"
+                                    "Infinite recursion detected for symbol 'expression'\n"
+                                    ))
+    def test_yacc_literal(self):
+        self.assertRaises(ply.yacc.YaccError,run_import,"yacc_literal")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "yacc_literal.py:36: Literal token '**' in rule 'expression' may only be a single character\n"
+                                    ))
+    def test_yacc_misplaced(self):
+        self.assertRaises(ply.yacc.YaccError,run_import,"yacc_misplaced")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "yacc_misplaced.py:32: Misplaced '|'\n"
+                                    ))
+
+    def test_yacc_missing1(self):
+        self.assertRaises(ply.yacc.YaccError,run_import,"yacc_missing1")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "yacc_missing1.py:24: Symbol 'location' used, but not defined as a token or a rule\n"
+                                    ))
+
+    def test_yacc_nested(self):
+        run_import("yacc_nested")
+        result = sys.stdout.getvalue()
+        self.assert_(check_expected(result,
+                                    "A\n"
+                                    "A\n"
+                                    "A\n",
+                                    ))
+
+    def test_yacc_nodoc(self):
+        run_import("yacc_nodoc")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "yacc_nodoc.py:27: No documentation string specified in function 'p_statement_expr' (ignored)\n"
+                                    "Generating LALR tables\n"
+                                    ))
+
+    def test_yacc_noerror(self):
+        run_import("yacc_noerror")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "no p_error() function is defined\n"
+                                    "Generating LALR tables\n"
+                                    ))
+
+    def test_yacc_nop(self):
+        run_import("yacc_nop")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "yacc_nop.py:27: Possible grammar rule 'statement_expr' defined without p_ prefix\n"
+                                    "Generating LALR tables\n"
+                                    ))
+
+    def test_yacc_notfunc(self):
+        run_import("yacc_notfunc")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "'p_statement_assign' not defined as a function\n"
+                                    "Token 'EQUALS' defined, but not used\n"
+                                    "There is 1 unused token\n"
+                                    "Generating LALR tables\n"
+                                    ))
+    def test_yacc_notok(self):
+        try:
+            run_import("yacc_notok")
+        except ply.yacc.YaccError:
+            result = sys.stderr.getvalue()
+            self.assert_(check_expected(result,
+                                        "No token list is defined\n"))
+
+    def test_yacc_rr(self):
+        run_import("yacc_rr")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "Generating LALR tables\n"
+                                    "1 reduce/reduce conflict\n"
+                                    "reduce/reduce conflict in state 15 resolved using rule (statement -> NAME EQUALS NUMBER)\n"
+                                    "rejected rule (expression -> NUMBER) in state 15\n"
+
+                                    ))
+
+    def test_yacc_rr_unused(self):
+        run_import("yacc_rr_unused")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "no p_error() function is defined\n"
+                                    "Generating LALR tables\n"
+                                    "3 reduce/reduce conflicts\n"
+                                    "reduce/reduce conflict in state 1 resolved using rule (rule3 -> A)\n"
+                                    "rejected rule (rule4 -> A) in state 1\n"
+                                    "reduce/reduce conflict in state 1 resolved using rule (rule3 -> A)\n"
+                                    "rejected rule (rule5 -> A) in state 1\n"
+                                    "reduce/reduce conflict in state 1 resolved using rule (rule4 -> A)\n"
+                                    "rejected rule (rule5 -> A) in state 1\n"
+                                    "Rule (rule5 -> A) is never reduced\n"
+                                    ))
+
+    def test_yacc_simple(self):
+        run_import("yacc_simple")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "Generating LALR tables\n"
+                                    ))
+
+    def test_yacc_sr(self):
+        run_import("yacc_sr")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "Generating LALR tables\n"
+                                    "20 shift/reduce conflicts\n"
+                                    ))
+
+    def test_yacc_term1(self):
+        self.assertRaises(ply.yacc.YaccError,run_import,"yacc_term1")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "yacc_term1.py:24: Illegal rule name 'NUMBER'. Already defined as a token\n"
+                                    ))
+
+    def test_yacc_unicode_literals(self):
+        run_import("yacc_unicode_literals")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "Generating LALR tables\n"
+                                    ))
+
+    def test_yacc_unused(self):
+        self.assertRaises(ply.yacc.YaccError,run_import,"yacc_unused")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "yacc_unused.py:62: Symbol 'COMMA' used, but not defined as a token or a rule\n"
+                                    "Symbol 'COMMA' is unreachable\n"
+                                    "Symbol 'exprlist' is unreachable\n"
+                                    ))
+    def test_yacc_unused_rule(self):
+        run_import("yacc_unused_rule")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "yacc_unused_rule.py:62: Rule 'integer' defined, but not used\n"
+                                    "There is 1 unused rule\n"
+                                    "Symbol 'integer' is unreachable\n"
+                                    "Generating LALR tables\n"
+                                    ))
+
+    def test_yacc_uprec(self):
+        self.assertRaises(ply.yacc.YaccError,run_import,"yacc_uprec")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "yacc_uprec.py:37: Nothing known about the precedence of 'UMINUS'\n"
+                                    ))
+
+    def test_yacc_uprec2(self):
+        self.assertRaises(ply.yacc.YaccError,run_import,"yacc_uprec2")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "yacc_uprec2.py:37: Syntax error. Nothing follows %prec\n"
+                                    ))
+
+    def test_yacc_prec1(self):
+        self.assertRaises(ply.yacc.YaccError,run_import,"yacc_prec1")
+        result = sys.stderr.getvalue()
+        self.assert_(check_expected(result,
+                                    "Precedence rule 'left' defined for unknown symbol '+'\n"
+                                    "Precedence rule 'left' defined for unknown symbol '*'\n"
+                                    "Precedence rule 'left' defined for unknown symbol '-'\n"
+                                    "Precedence rule 'left' defined for unknown symbol '/'\n"
+                                    ))
+
+    def test_pkg_test1(self):
+        from pkg_test1 import parser
+        self.assertTrue(os.path.exists('pkg_test1/parsing/parsetab.py'))
+        self.assertTrue(os.path.exists('pkg_test1/parsing/lextab.py'))
+        self.assertTrue(os.path.exists('pkg_test1/parsing/parser.out'))
+        r = parser.parse('3+4+5')
+        self.assertEqual(r, 12)
+
+    def test_pkg_test2(self):
+        from pkg_test2 import parser
+        self.assertTrue(os.path.exists('pkg_test2/parsing/calcparsetab.py'))
+        self.assertTrue(os.path.exists('pkg_test2/parsing/calclextab.py'))
+        self.assertTrue(os.path.exists('pkg_test2/parsing/parser.out'))
+        r = parser.parse('3+4+5')
+        self.assertEqual(r, 12)
+
+    def test_pkg_test3(self):
+        from pkg_test3 import parser
+        self.assertTrue(os.path.exists('pkg_test3/generated/parsetab.py'))
+        self.assertTrue(os.path.exists('pkg_test3/generated/lextab.py'))
+        self.assertTrue(os.path.exists('pkg_test3/generated/parser.out'))
+        r = parser.parse('3+4+5')
+        self.assertEqual(r, 12)
+
+    def test_pkg_test4(self):
+        from pkg_test4 import parser
+        self.assertFalse(os.path.exists('pkg_test4/parsing/parsetab.py'))
+        self.assertFalse(os.path.exists('pkg_test4/parsing/lextab.py'))
+        self.assertFalse(os.path.exists('pkg_test4/parsing/parser.out'))
+        r = parser.parse('3+4+5')
+        self.assertEqual(r, 12)
+
+    def test_pkg_test5(self):
+        from pkg_test5 import parser
+        self.assertTrue(os.path.exists('pkg_test5/parsing/parsetab.py'))
+        self.assertTrue(os.path.exists('pkg_test5/parsing/lextab.py'))
+        self.assertTrue(os.path.exists('pkg_test5/parsing/parser.out'))
+        r = parser.parse('3+4+5')
+        self.assertEqual(r, 12)
+
+    def test_pkg_test6(self):
+        from pkg_test6 import parser
+        self.assertTrue(os.path.exists('pkg_test6/parsing/parsetab.py'))
+        self.assertTrue(os.path.exists('pkg_test6/parsing/lextab.py'))
+        self.assertTrue(os.path.exists('pkg_test6/parsing/parser.out'))
+        r = parser.parse('3+4+5')
+        self.assertEqual(r, 12)
+
+unittest.main()