1 files changed, 70 insertions, 0 deletions
diff --git a/lib/tests/test_pipeline.py b/lib/tests/test_pipeline.py
new file mode 100644
index 0000000..da2e9da
--- /dev/null
+++ b/lib/tests/test_pipeline.py
@@ -0,0 +1,70 @@
+import numpy as np
+from conftest import band_db, sine, speechish
+
+from producer import meters, pipeline
+from producer.config import Options
+
+
+def test_stage_order_and_names():
+    opts = Options()
+    opts.denoise = "off"
+    opts.enhance = "off"
+    res = pipeline.run_pipeline(np.zeros(44100, dtype=np.float32), 44100, opts)
+    names = [s.name for s in res.stages]
+    assert names == ["denoise", "enhance", "dsp", "levelling"]
+    by_name = {s.name: s for s in res.stages}
+    assert by_name["denoise"].enabled is False
+    assert by_name["enhance"].enabled is False
+    assert by_name["dsp"].enabled is True
+    assert by_name["levelling"].enabled is True
+
+
+def test_full_chain_profile_bounds(sr):
+    opts = Options()
+    opts.denoise = "off"
+    opts.enhance = "off"
+    x = speechish(8.0, sr, level_dbfs=-35.0)
+    res = pipeline.run_pipeline(x, sr, opts)
+    assert abs(meters.rms_db(res.audio) + 20.0) < 0.6
+    assert meters.true_peak_db(res.audio, sr) <= -2.9
+    assert res.timings.get("levelling", 0) >= 0
+
+
+def test_passthrough_when_disabled(sr):
+    opts = Options()
+    opts.denoise = "off"
+    opts.enhance = "off"
+    opts.dsp = False
+    opts.levelling = False
+    x = speechish(4.0, sr, level_dbfs=-20.0)
+    res = pipeline.run_pipeline(x, sr, opts)
+    assert np.allclose(res.audio, x)
+
+
+def test_knob_zero_disables_eq(sr):
+    base = Options()
+    base.denoise = "off"
+    base.enhance = "off"
+    base.levelling = False
+    base.strengths["warmth"] = 0.0
+    warm = Options()
+    warm.denoise = "off"
+    warm.enhance = "off"
+    warm.levelling = False
+    x = sine(60, 4.0, sr, -20.0) + sine(3000, 4.0, sr, -20.0)
+    y_flat = pipeline.run_pipeline(x, sr, base).audio
+    y_warm = pipeline.run_pipeline(x, sr, warm).audio
+    d_flat = band_db(y_flat, sr, 50, 70) - band_db(x, sr, 50, 70)
+    d_warm = band_db(y_warm, sr, 50, 70) - band_db(x, sr, 50, 70)
+    assert d_warm - d_flat > 0.8
+
+
+def test_podcast_profile_bounds(sr):
+    opts = Options()
+    opts.profile = "podcast"
+    opts.denoise = "off"
+    opts.enhance = "off"
+    x = speechish(8.0, sr, level_dbfs=-35.0)
+    res = pipeline.run_pipeline(x, sr, opts)
+    assert abs(meters.lufs(res.audio, sr) + 16.0) < 0.8
+    assert meters.true_peak_db(res.audio, sr) <= -1.4