add more tests for pow into float.py and long.py

test/tests/float.py

@@ -95,3 +95,12 @@ print -(0.0)
 print -(-0.0)
 
 print repr((1e100).__trunc__())
+
+all_args = [None, 1, 1L, -1, -1L, 2.0, 0.5, 0]
+for lhs in all_args:
+    for rhs in all_args:
+        for mod in all_args:
+            try:
+                print pow(lhs, rhs, mod)
+            except Exception as e:
+                print type(e), e

test/tests/long.py

@@ -57,6 +57,10 @@ print ~(-10L)
 print -(1L)
 print 1L**2L
 print 1L**2
+print 0 ** (1 << 100)
+print pow(1 << 30, 1 << 30, 127)
+print pow(1L << 30, 1L << 30, 127)
+print pow(1 << 100, 1 << 100, 1000)
 print (11L).__pow__(32, 50L)
 print (11L).__index__()