py3test.py to run the unit tests with python3 as a cross check

Author: ncw

py3test.py

@@ -0,0 +1,46 @@
+#!/usr/bin/env python3.4
+"""
+Check all the tests work with python3.4 and gpython
+
+Note that this isn't quite the same as running the unit tests - the
+unit tests should be preferred.  This is a quick check to make sure
+the tests run with python3.
+"""
+
+import os
+import sys
+from subprocess import Popen, PIPE, STDOUT
+
+testwith = ("python3.4", "gpython")
+
+def runtests(dirpath, filenames):
+    """Run the tests found"""
+    print("Running tests in %s" % dirpath)
+    for name in filenames:
+        if not name.endswith(".py") or name.startswith("lib") or name.startswith("raise"):
+            continue
+        print("Testing %s" % name)
+        fullpath = os.path.join(dirpath, name)
+        for cmd in testwith:
+            prog = [cmd, fullpath]
+            p = Popen(prog, stdin=PIPE, stdout=PIPE, stderr=STDOUT, close_fds=True)
+            stdout, stderr = p.communicate("")
+            rc = p.returncode
+            if rc != 0:
+                print("*** %s %s Fail ***" % (cmd, fullpath))
+                print("="*60)
+                sys.stdout.write(stdout.decode("utf-8"))
+                print("="*60)
+        
+def main():
+    binary = os.path.abspath(__file__)
+    home = os.path.dirname(binary)
+    os.chdir(home)
+    print("Scanning %s for tests" % home)
+
+    for dirpath, dirnames, filenames in os.walk("."):
+        if os.path.basename(dirpath) == "tests":
+            runtests(dirpath, filenames)
+
+if __name__ == "__main__":
+    main()