uhd: swig fix for stream args channel comprehension

* added %template entries for swig
* added python qa tests for channels

Tested on ubuntu 12.10 x64
Tested on ubuntu 11.04 x86

Author: guruofquality

gr-uhd/python/qa_uhd.py

@@ -36,5 +36,17 @@ def test_000_nop (self):
         They may not have a UHD device connected, etc.  Don't try to run anything"""
         pass
 
+    def test_stream_args_channel_foo(self):
+        """
+        Try to manipulate the stream args channels for proper swig'ing checks.
+        """
+        sa = uhd_swig.stream_args_t()
+        sa.channels.append(1)
+        sa.channels.append(0)
+        print sa.channels
+        self.assertEqual(len(sa.channels), 2)
+        self.assertEqual(sa.channels[0], 1)
+        self.assertEqual(sa.channels[1], 0)
+
 if __name__ == '__main__':
     gr_unittest.run(test_uhd, "test_uhd.xml")

gr-uhd/swig/uhd_swig.i

@@ -50,6 +50,10 @@
 // used types
 ////////////////////////////////////////////////////////////////////////
 
+%template(uhd_string_vector_t) std::vector<std::string>;
+
+%template(uhd_size_vector_t) std::vector<size_t>;
+
 %include <uhd/config.hpp>
 
 %include <uhd/utils/pimpl.hpp>