feat: ship waterfall receiver overhaul and platform mode updates

tests/test_sdr_detection.py

@@ -0,0 +1,46 @@
+"""Tests for RTL-SDR detection parsing."""
+
+from unittest.mock import MagicMock, patch
+
+from utils.sdr.base import SDRType
+from utils.sdr.detection import detect_rtlsdr_devices
+
+
+@patch('utils.sdr.detection._check_tool', return_value=True)
+@patch('utils.sdr.detection.subprocess.run')
+def test_detect_rtlsdr_devices_filters_empty_serial_entries(mock_run, _mock_check_tool):
+    """Ignore malformed rtl_test rows that have an empty SN field."""
+    mock_result = MagicMock()
+    mock_result.stdout = ""
+    mock_result.stderr = (
+        "Found 3 device(s):\n"
+        "  0:  ??C?, , SN:\n"
+        "  1:  ??C?, , SN:\n"
+        "  2:  RTLSDRBlog, Blog V4, SN: 1\n"
+    )
+    mock_run.return_value = mock_result
+
+    devices = detect_rtlsdr_devices()
+
+    assert len(devices) == 1
+    assert devices[0].sdr_type == SDRType.RTL_SDR
+    assert devices[0].index == 2
+    assert devices[0].name == "RTLSDRBlog, Blog V4"
+    assert devices[0].serial == "1"
+
+
+@patch('utils.sdr.detection._check_tool', return_value=True)
+@patch('utils.sdr.detection.subprocess.run')
+def test_detect_rtlsdr_devices_uses_replace_decode_mode(mock_run, _mock_check_tool):
+    """Run rtl_test with tolerant decoding for malformed output bytes."""
+    mock_result = MagicMock()
+    mock_result.stdout = ""
+    mock_result.stderr = "Found 0 device(s):"
+    mock_run.return_value = mock_result
+
+    detect_rtlsdr_devices()
+
+    _, kwargs = mock_run.call_args
+    assert kwargs["text"] is True
+    assert kwargs["encoding"] == "utf-8"
+    assert kwargs["errors"] == "replace"