chore: commit all pending changes

tests/test_pager_scope.py

@@ -0,0 +1,47 @@
+"""Tests for pager scope waveform payload generation."""
+
+from __future__ import annotations
+
+import io
+import queue
+import struct
+import threading
+
+from routes.pager import _encode_scope_waveform, audio_relay_thread
+
+
+def test_encode_scope_waveform_respects_window_and_range():
+    samples = (-32768, -16384, 0, 16384, 32767)
+    waveform = _encode_scope_waveform(samples, window_size=4)
+
+    assert len(waveform) == 4
+    assert waveform[0] == -64
+    assert waveform[1] == 0
+    assert waveform[2] == 64
+    assert waveform[3] == 127
+    assert max(waveform) <= 127
+    assert min(waveform) >= -127
+
+
+def test_audio_relay_thread_emits_scope_waveform(monkeypatch):
+    base_samples = (0, 32767, -32768, 16384) * 512
+    pcm = struct.pack(f"<{len(base_samples)}h", *base_samples)
+
+    rtl_stdout = io.BytesIO(pcm)
+    multimon_stdin = io.BytesIO()
+    output_queue: queue.Queue = queue.Queue()
+    stop_event = threading.Event()
+
+    ticks = iter([0.0, 0.2, 0.2, 0.2])
+    monkeypatch.setattr("routes.pager.time.monotonic", lambda: next(ticks, 0.2))
+
+    audio_relay_thread(rtl_stdout, multimon_stdin, output_queue, stop_event)
+
+    scope_event = output_queue.get_nowait()
+    assert scope_event["type"] == "scope"
+    assert scope_event["rms"] > 0
+    assert scope_event["peak"] > 0
+    assert "waveform" in scope_event
+    assert len(scope_event["waveform"]) > 0
+    assert max(scope_event["waveform"]) <= 127
+    assert min(scope_event["waveform"]) >= -127

tests/test_sensor_scope.py

@@ -0,0 +1,21 @@
+"""Tests for synthesized 433 MHz scope waveform payload."""
+
+from __future__ import annotations
+
+from routes.sensor import _build_scope_waveform
+
+
+def test_build_scope_waveform_has_expected_shape_and_bounds():
+    waveform = _build_scope_waveform(rssi=-8.5, snr=11.2, noise=-26.0, points=96)
+
+    assert len(waveform) == 96
+    assert max(waveform) <= 127
+    assert min(waveform) >= -127
+    assert any(sample != 0 for sample in waveform)
+
+
+def test_build_scope_waveform_changes_with_signal_profile():
+    low_snr = _build_scope_waveform(rssi=-14.0, snr=2.0, noise=-12.0, points=64)
+    high_snr = _build_scope_waveform(rssi=-14.0, snr=20.0, noise=-12.0, points=64)
+
+    assert low_snr != high_snr

tests/test_sstv_scope.py

@@ -0,0 +1,25 @@
+"""Tests for SSTV scope waveform encoding."""
+
+from __future__ import annotations
+
+import numpy as np
+
+from utils.sstv.sstv_decoder import _encode_scope_waveform
+
+
+def test_encode_scope_waveform_respects_window_and_bounds():
+    samples = np.array([-32768, -16384, 0, 16384, 32767], dtype=np.int16)
+    waveform = _encode_scope_waveform(samples, window_size=4)
+
+    assert len(waveform) == 4
+    assert waveform[0] == -64
+    assert waveform[1] == 0
+    assert waveform[2] == 64
+    assert waveform[3] == 127
+    assert max(waveform) <= 127
+    assert min(waveform) >= -127
+
+
+def test_encode_scope_waveform_empty_input():
+    waveform = _encode_scope_waveform(np.array([], dtype=np.int16))
+    assert waveform == []