blocks: added gr::blocks::char_to_float

1 files changed, 55 insertions, 0 deletions

diff --git a/gr-blocks/python/qa_type_conversions.py b/gr-blocks/python/qa_type_conversions.py
new file mode 100755
index 000000000..bc65a2781
--- /dev/null
+++ b/gr-blocks/python/qa_type_conversions.py
@@ -0,0 +1,55 @@
+#!/usr/bin/env python
+#
+# Copyright 2012 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 blocks_swig
+
+class test_type_conversions(gr_unittest.TestCase):
+
+    def setUp(self):
+        self.tb = gr.top_block()
+
+    def tearDown(self):
+        self.tb = None
+
+    def test_char_to_float_identity(self):
+        src_data = (1, 2, 3, 4, 5)
+        expected_data = (1.0, 2.0, 3.0, 4.0, 5.0)
+        src = gr.vector_source_b(src_data)
+        op = blocks_swig.char_to_float()
+        dst = gr.vector_sink_f()
+        self.tb.connect(src, op, dst)
+        self.tb.run()
+        self.assertFloatTuplesAlmostEqual(expected_data, dst.data())
+
+    def test_char_to_float_scale(self):
+        src_data = (1, 2, 3, 4, 5)
+        expected_data = (0.5, 1.0, 1.5, 2.0, 2.5)
+        src = gr.vector_source_b(src_data)
+        op = blocks_swig.char_to_float(scale=2.0)
+        dst = gr.vector_sink_f()
+        self.tb.connect(src, op, dst)
+        self.tb.run()
+        self.assertFloatTuplesAlmostEqual(expected_data, dst.data())
+
+if __name__ == '__main__':
+    gr_unittest.run(test_type_conversions, "test_type_conversions.xml")