Merge pull request antlr#946 from parrt/master

pull in antlr4-python2 history for runtime files.

Author: parrt

runtime/Python2/src/test/TestAtomicPerformance.py

@@ -0,0 +1,60 @@
+__author__ = 'ericvergnaud'
+
+import unittest
+import time
+import uuid
+
+class TestAtomicPerformance(unittest.TestCase):
+
+    # test to check that on the current platform, a < b < c is faster than b in xrange(a,c)
+    # x in xrange is intensively used in Interval
+    def test_in_xrange(self):
+        xstart = time.time()
+        # check with 20 various range sizes
+        for max in xrange(0,1000,50):
+            r = xrange(0,max)
+            for i in r:
+                ok = i in r
+        xend = time.time()
+        print str((xend-xstart)*1000000)
+        ystart = time.time()
+        # check with 20 various range sizes
+        for max in xrange(0,1000,50):
+            r = xrange(0,max)
+            for i in r:
+                ok = max > i >= 0
+        yend = time.time()
+        print str((yend-ystart)*1000000)
+        self.assertTrue((yend-ystart)<(xend-xstart))
+
+    # test to check that on the current platform, hashing string tuples is faster than hashing strings
+    def test_tuple_hash(self):
+        # create an array of random strings
+        s = []
+        for i in xrange(0,10000):
+            s.append(str(uuid.uuid4()))
+        # hash then using string concat
+        xstart = time.time()
+        for i in xrange(0,9999):
+            a = hash(s[i] + s[i+1])
+        for i in xrange(0,9998):
+            a = hash(s[i] + s[i+1] + s[i+2])
+        for i in xrange(0,9997):
+            a = hash(s[i] + s[i+1] + s[i+2] + s[i+3])
+        xend = time.time()
+        print str((xend-xstart)*1000000)
+        ystart = time.time()
+        # hash then using string tuple
+        for i in xrange(0,9999):
+            a = hash((s[i],s[i+1]))
+        for i in xrange(0,9998):
+            a = hash((s[i],s[i+1],s[i+2]))
+        for i in xrange(0,9997):
+            a = hash((s[i],s[i+1],s[i+2],s[i+3]))
+        yend = time.time()
+        print str((yend-ystart)*1000000)
+        self.assertTrue((yend-ystart)<(xend-xstart))
+
+
+if __name__ == '__main__':
+    unittest.main()

runtime/Python2/src/test/TestXPath.py

@@ -0,0 +1,17 @@
+__author__ = 'ericvergnaud'
+
+import unittest
+import time
+import uuid
+
+class TestXPath(unittest.TestCase):
+
+    def testLoadable(self):
+        from antlr4.xpath import XPath
+        self.assertTrue(True)
+
+
+
+
+if __name__ == '__main__':
+    unittest.main()