[Commit-gnuradio] [gnuradio] 06/10: digital: add QA test for tagged stream version of correlate_access_code

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commit c2ba78b43fa9829ba8daf26bcfc3fbd95b1d2daa
Author: Sean Nowlan <address@hidden>
Date:   Mon Apr 11 14:19:12 2016 -0400

    digital: add QA test for tagged stream version of correlate_access_code
---
 .../digital/qa_correlate_access_code_XX_ts.py      | 90 ++++++++++++++++++++++
 1 file changed, 90 insertions(+)

diff --git a/gr-digital/python/digital/qa_correlate_access_code_XX_ts.py 
b/gr-digital/python/digital/qa_correlate_access_code_XX_ts.py
new file mode 100755
index 0000000..5429ce1
--- /dev/null
+++ b/gr-digital/python/digital/qa_correlate_access_code_XX_ts.py
@@ -0,0 +1,90 @@
+#!/usr/bin/env python
+#
+# Copyright 2006,2007,2010,2011,2013,2016 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+from gnuradio import gr, gr_unittest, digital, blocks
+import pmt
+
+default_access_code = '\xAC\xDD\xA4\xE2\xF2\x8C\x20\xFC'
+
+def string_to_1_0_list(s):
+    r = []
+    for ch in s:
+        x = ord(ch)
+        for i in range(8):
+            t = (x >> i) & 0x1
+            r.append(t)
+    return r
+
+def to_1_0_string(L):
+    return ''.join(map(lambda x: chr(x + ord('0')), L))
+
+class test_correlate_access_code_XX_ts(gr_unittest.TestCase):
+
+    def setUp(self):
+        self.tb = gr.top_block()
+
+    def tearDown(self):
+        self.tb = None
+
+    def test_001(self):
+        payload = "test packet"     # payload length is 11 bytes
+        header = "\x00\xd0\x00\xd0" # header contains packet length, twice 
(bit-swapped)
+        packet = header + payload
+        pad = (0,) * 64
+        src_data = (0, 0, 1, 1, 1, 1, 0, 1, 1) + 
tuple(string_to_1_0_list(packet)) + pad
+        expected = tuple(map(long, src_data[9+32:-len(pad)]))
+        src = blocks.vector_source_b(src_data)
+        op = digital.correlate_access_code_bb_ts("1011", 0, "sync")
+        dst = blocks.vector_sink_b()
+        self.tb.connect(src, op, dst)
+        self.tb.run()
+        result_data = dst.data()
+        result_tags = dst.tags()
+        self.assertEqual(len(result_data), len(payload)*8)
+        self.assertEqual(result_tags[0].offset, 0)
+        self.assertEqual(pmt.to_long(result_tags[0].value), len(payload)*8)
+        self.assertEqual(result_data, expected)
+
+    def test_002(self):
+        payload = "test packet"     # payload length is 11 bytes
+        header = "\x00\xd0\x00\xd0" # header contains packet length, twice 
(bit-swapped)
+        packet = header + payload
+        pad = (0,) * 64
+        src_data = (0, 0, 1, 1, 1, 1, 0, 1, 1) + 
tuple(string_to_1_0_list(packet)) + pad
+        src_floats = tuple(2*b-1 for b in src_data) # convert to binary 
antipodal symbols (-1,1)
+        expected = src_floats[9+32:-len(pad)]
+        src = blocks.vector_source_f(src_floats)
+        op = digital.correlate_access_code_ff_ts("1011", 0, "sync")
+        dst = blocks.vector_sink_f()
+        self.tb.connect(src, op, dst)
+        self.tb.run()
+        result_data = dst.data()
+        result_tags = dst.tags()
+        self.assertEqual(len(result_data), len(payload)*8)
+        self.assertEqual(result_tags[0].offset, 0)
+        self.assertEqual(pmt.to_long(result_tags[0].value), len(payload)*8)
+        self.assertFloatTuplesAlmostEqual(result_data, expected, 5)
+
+
+if __name__ == '__main__':
+    gr_unittest.run(test_correlate_access_code_XX_ts, 
"test_correlate_access_code_XX_ts.xml")
+