From e41edc8d1730abeb83749896705e8c84fa45a3d6 Mon Sep 17 00:00:00 2001
From: Peter Sobot <psobot@spotify.com>
Date: Tue, 30 Jul 2024 11:47:17 -0400
Subject: [PATCH] Add explicit test for appending to a no-argument Pedalboard.
 (#360)

* Add explicit test for appending to a no-argument Pedalboard.

* Update test_python_interface.py
---
 tests/test_python_interface.py | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tests/test_python_interface.py b/tests/test_python_interface.py
index 1cbecf1d..f0275df5 100644
--- a/tests/test_python_interface.py
+++ b/tests/test_python_interface.py
@@ -17,7 +17,7 @@
 
 import pytest
 import numpy as np
-from pedalboard import Pedalboard, Gain
+from pedalboard import Pedalboard, Gain, Reverb
 
 
 @pytest.mark.parametrize("shape", [(44100,), (44100, 1), (44100, 2), (1, 4), (2, 4)])
@@ -63,6 +63,12 @@ def test_repr():
 
 
 def test_is_list_like():
+    assert len(Pedalboard()) == 0
+    pb = Pedalboard()
+    assert len(pb) == 0
+    pb.append(Reverb())
+    assert len(pb) == 1
+
     gain = Gain(-6)
 
     assert len(Pedalboard([gain])) == 1