Test: Added tests StereoPanner

tests/test_nodes_processors_multichannel.py

@@ -3,13 +3,35 @@
 import math
 
 def test_nodes_multichannel_pan(graph):
+    # Test panning left
     a = 0.5
     b = sf.StereoPanner(a, -1.0)
     graph.render_subgraph(b, reset=True)
     assert all(b.output_buffer[0] == 0.5)
     assert all(b.output_buffer[1] == 0.0)
 
+    # Test panning right
+    a = 0.5
+    b = sf.StereoPanner(a, 1.0)
+    graph.render_subgraph(b, reset=True)
+    assert all(b.output_buffer[0] == 0.0)
+    assert all(b.output_buffer[1] == 0.5)
+
+    # Test panning centre
     b.set_input("pan", 0.0)
     graph.render_subgraph(b, reset=True)
     assert all(b.output_buffer[0] == 0.5 * math.sqrt(0.5))
-    assert all(b.output_buffer[1] == 0.5 * math.sqrt(0.5))
+    assert all(b.output_buffer[1] == 0.5 * math.sqrt(0.5))
+
+    # # Test panning values beyond range (-1.0, 1.0)
+    a = 0.5
+    b = sf.StereoPanner(a, -1.1)
+    graph.render_subgraph(b, reset=True)
+    assert all(b.output_buffer[0] == 0.5)
+    assert all(b.output_buffer[1] == 0.0)
+
+    a = 0.5 
+    b = sf.StereoPanner(a, 1.1)
+    graph.render_subgraph(b, reset=True)
+    assert all(b.output_buffer[0] == 0.0)
+    assert all(b.output_buffer[1] == 0.5)