1 files changed, 27 insertions, 0 deletions
diff --git a/gr-howto-write-a-block/limbo/doc/qa_howto_1.py b/gr-howto-write-a-block/limbo/doc/qa_howto_1.py
new file mode 100755
index 000000000..3173110f8
--- /dev/null
+++ b/gr-howto-write-a-block/limbo/doc/qa_howto_1.py
@@ -0,0 +1,27 @@
+#!/usr/bin/env python
+
+from gnuradio import gr, gr_unittest
+import howto
+
+class qa_howto (gr_unittest.TestCase):
+
+    def setUp (self):
+        self.tb = gr.top_block ()
+
+    def tearDown (self):
+        self.tb = None
+
+    def test_001_square_ff (self):
+        src_data = (-3, 4, -5.5, 2, 3)
+        expected_result = (9, 16, 30.25, 4, 9)
+        src = gr.vector_source_f (src_data)
+        sqr = howto.square_ff ()
+        dst = gr.vector_sink_f ()
+        self.tb.connect (src, sqr)
+        self.tb.connect (sqr, dst)
+        self.tb.run ()
+        result_data = dst.data ()
+        self.assertFloatTuplesAlmostEqual (expected_result, result_data, 6)
+        
+if __name__ == '__main__':
+    gr_unittest.main ()