diff --git a/python/test/test_all.py b/python/test/test_all.py
index c2698907..1f8a3851 100644
--- a/python/test/test_all.py
+++ b/python/test/test_all.py
@@ -88,3 +88,5 @@ def case2():
 def test_all():
     case1()
     case2()
+
+test_all()
\ No newline at end of file
diff --git a/python/test/test_binding.py b/python/test/test_binding.py
new file mode 100644
index 00000000..f016edb1
--- /dev/null
+++ b/python/test/test_binding.py
@@ -0,0 +1,42 @@
+from ionpy import Node, Builder, Buffer, PortMap, Port, Param, Type, TypeCode
+import numpy as np # TODO: rewrite with pure python
+
+def test_binding():
+
+    input_port = Port(name='input', type=Type.from_dtype(np.dtype(np.int32)), dim=2)
+    value41 = Param(key='v', val='41')
+
+    builder = Builder()
+    builder.set_target(target='host')
+    builder.with_bb_module(path='ion-bb-test')
+
+    node = builder.add('test_inc_i32x2').set_iport([input_port]).set_param(params=[ value41, ])
+
+    idata = np.full((4, 4), fill_value=1, dtype=np.int32)
+    ibuf = Buffer(array=idata)
+
+    odata = np.full((4, 4), fill_value=0, dtype=np.int32)
+    obuf = Buffer(array=odata)
+
+
+    input_port.bind_buffer(ibuf)
+    output_port = node.get_port(name='output')
+    output_port.bind_buffer(obuf)
+
+    # First run
+    builder.run()
+
+    for y in range(4):
+        for x in range(4):
+            assert odata[y][x] == 42
+
+    # Second
+    for y in range(4):
+        for x in range(4):
+            idata[y][x] = 2
+
+    builder.run()
+
+    for y in range(4):
+        for x in range(4):
+            assert odata[y][x] == 43