1 files changed, 192 insertions, 0 deletions
diff --git a/gr-fec/python/fec/qa_depuncture.py b/gr-fec/python/fec/qa_depuncture.py
new file mode 100644
index 0000000000..5566e83a25
--- /dev/null
+++ b/gr-fec/python/fec/qa_depuncture.py
@@ -0,0 +1,192 @@
+#!/usr/bin/env python
+#
+# Copyright 2014 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
+import fec_swig as fec
+import blocks_swig as blocks
+from collections import deque
+
+class test_depuncture (gr_unittest.TestCase):
+
+    def depuncture_setup(self):
+        p = []
+        for i in range(self.puncsize):
+            p.append(self.puncpat >> (self.puncsize - 1 - i) & 1)
+        d = deque(p)
+        d.rotate(self.delay)
+        _puncpat = list(d)
+
+        k = 0
+        self.expected = []
+        for n in range(len(self.src_data)/(self.puncsize - self.puncholes)):
+            for i in range(self.puncsize):
+                if _puncpat[i] == 1:
+                    self.expected.append(self.src_data[k]);
+                    k+=1
+                else:
+                    self.expected.append(self.sym)
+
+    def setUp(self):
+        self.src_data = 2000*range(64)
+        self.tb = gr.top_block ()
+
+    def tearDown(self):
+        self.tb = None
+
+    def test_000(self):
+        # Test normal operation of the depuncture block
+
+        self.puncsize = 8
+        self.puncpat = 0xEF
+        self.delay = 0
+        self.sym = 0
+        self.puncholes = 1
+
+        self.depuncture_setup()
+
+        src = blocks.vector_source_b(self.src_data)
+	op  = fec.depuncture_bb(self.puncsize, self.puncpat,
+                                self.delay, self.sym)
+	dst = blocks.vector_sink_b()
+
+	self.tb.connect(src, op, dst)
+	self.tb.run()
+
+	dst_data = list(dst.data())
+        for i in xrange(len(dst_data)):
+            dst_data[i] = int(dst_data[i])
+
+        self.assertEqual(self.expected, dst_data)
+
+    def test_001(self):
+        # Test normal operation of the depuncture block with a delay
+
+        self.puncsize = 8
+        self.puncpat = 0xEF
+        self.delay = 1
+        self.sym = 0
+        self.puncholes = 1
+
+        self.depuncture_setup()
+
+        src = blocks.vector_source_b(self.src_data)
+	op  = fec.depuncture_bb(self.puncsize, self.puncpat,
+                                self.delay, self.sym)
+	dst = blocks.vector_sink_b()
+
+	self.tb.connect(src, op, dst)
+	self.tb.run()
+
+	dst_data = list(dst.data())
+        for i in xrange(len(dst_data)):
+            dst_data[i] = int(dst_data[i])
+
+        self.assertEqual(self.expected, dst_data)
+
+    def test_002(self):
+        # Test scenario where we have defined a puncture pattern with
+        # more bits than the puncsize.
+
+        self.puncsize = 4
+        self.puncpat = 0x5555
+        self.delay = 0
+        self.sym = 0
+        self.puncholes = 2
+
+        self.depuncture_setup()
+
+        src = blocks.vector_source_b(self.src_data)
+	op  = fec.depuncture_bb(self.puncsize, self.puncpat,
+                                self.delay, self.sym)
+	dst = blocks.vector_sink_b()
+
+	self.tb.connect(src, op, dst)
+	self.tb.run()
+
+	dst_data = list(dst.data())
+        for i in xrange(len(dst_data)):
+            dst_data[i] = int(dst_data[i])
+
+        self.assertEqual(self.expected, dst_data)
+
+    def test_003(self):
+        # Test scenario where we have defined a puncture pattern with
+        # more bits than the puncsize with a delay. The python code
+        # doesn't account for this when creating self.expected, but
+        # this should be equivalent to a puncpat of the correct size.
+
+        self.puncsize = 4
+        self.puncpat0 = 0x5555 # too many bits set
+        self.puncpat1 = 0x55   # num bits = puncsize
+        self.delay = 1
+        self.sym = 0
+
+        src = blocks.vector_source_b(self.src_data)
+	op0  = fec.depuncture_bb(self.puncsize, self.puncpat0,
+                                 self.delay, self.sym)
+	op1  = fec.depuncture_bb(self.puncsize, self.puncpat1,
+                                 self.delay, self.sym)
+	dst0 = blocks.vector_sink_b()
+	dst1 = blocks.vector_sink_b()
+
+	self.tb.connect(src, op0, dst0)
+	self.tb.connect(src, op1, dst1)
+	self.tb.run()
+
+	dst_data0 = list(dst0.data())
+        for i in xrange(len(dst_data0)):
+            dst_data0[i] = int(dst_data0[i])
+
+	dst_data1 = list(dst1.data())
+        for i in xrange(len(dst_data1)):
+            dst_data1[i] = int(dst_data1[i])
+
+        self.assertEqual(dst_data1, dst_data0)
+
+    def test_004(self):
+        # Test normal operation of the depuncture block without
+        # specifying the fill symbol (defaults to 127).
+
+        self.puncsize = 8
+        self.puncpat = 0xEF
+        self.delay = 0
+        self.sym = 127
+        self.puncholes = 1
+
+        self.depuncture_setup()
+
+        src = blocks.vector_source_b(self.src_data)
+	op  = fec.depuncture_bb(self.puncsize, self.puncpat,
+                                self.delay)
+	dst = blocks.vector_sink_b()
+
+	self.tb.connect(src, op, dst)
+	self.tb.run()
+
+	dst_data = list(dst.data())
+        for i in xrange(len(dst_data)):
+            dst_data[i] = int(dst_data[i])
+
+        self.assertEqual(self.expected, dst_data)
+
+if __name__ == '__main__':
+    gr_unittest.run(test_depuncture, "test_depuncture.xml")