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Fix weather satellite mode returning false success on SatDump startup failure

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Add synchronous startup verification after Popen() — sleep 0.5s and poll
the process before returning to the caller. If SatDump exits immediately
(missing device, bad args), raise RuntimeError with the actual error
message instead of returning status: 'started'. Keep a shorter (2s) async
backup check for slower failures.

Also fix --source_id handling: omit the flag entirely when no serial number
is found instead of passing "0" which SatDump may reject. Change start()
and start_from_file() to return (bool, str|None) tuples so error messages
propagate through to the HTTP response.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Smittix
2026-02-25 21:49:16 +00:00
parent a50f77629c
commit 935b7a4d9d
7 changed files with 197 additions and 147 deletions
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29
tests/test_weather_sat_decoder.py
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@@ -73,9 +73,10 @@ class TestWeatherSatDecoder:
callback = MagicMock()
decoder.set_callback(callback)
success = decoder.start(satellite='NOAA-18', device_index=0, gain=40.0)
success, error_msg = decoder.start(satellite='NOAA-18', device_index=0, gain=40.0)
assert success is False
assert error_msg is not None
callback.assert_called()
progress = callback.call_args[0][0]
assert progress.status == 'error'
@@ -88,7 +89,7 @@ class TestWeatherSatDecoder:
callback = MagicMock()
decoder.set_callback(callback)
success = decoder.start(satellite='FAKE-SAT', device_index=0, gain=40.0)
success, error_msg = decoder.start(satellite='FAKE-SAT', device_index=0, gain=40.0)
assert success is False
callback.assert_called()
@@ -113,7 +114,7 @@ class TestWeatherSatDecoder:
callback = MagicMock()
decoder.set_callback(callback)
success = decoder.start(
success, error_msg = decoder.start(
satellite='NOAA-18',
device_index=0,
gain=40.0,
@@ -121,6 +122,7 @@ class TestWeatherSatDecoder:
)
assert success is True
assert error_msg is None
assert decoder.is_running is True
assert decoder.current_satellite == 'NOAA-18'
assert decoder.current_frequency == 137.9125
@@ -143,9 +145,10 @@ class TestWeatherSatDecoder:
decoder = WeatherSatDecoder()
decoder._running = True
success = decoder.start(satellite='NOAA-18', device_index=0, gain=40.0)
success, error_msg = decoder.start(satellite='NOAA-18', device_index=0, gain=40.0)
assert success is True
assert error_msg is None
mock_popen.assert_not_called()
@patch('subprocess.Popen')
@@ -160,9 +163,10 @@ class TestWeatherSatDecoder:
callback = MagicMock()
decoder.set_callback(callback)
success = decoder.start(satellite='NOAA-18', device_index=0, gain=40.0)
success, error_msg = decoder.start(satellite='NOAA-18', device_index=0, gain=40.0)
assert success is False
assert error_msg is not None
assert decoder.is_running is False
callback.assert_called()
progress = callback.call_args[0][0]
@@ -175,12 +179,13 @@ class TestWeatherSatDecoder:
callback = MagicMock()
decoder.set_callback(callback)
success = decoder.start_from_file(
success, error_msg = decoder.start_from_file(
satellite='NOAA-18',
input_file='data/test.wav',
)
assert success is False
assert error_msg is not None
callback.assert_called()
@patch('subprocess.Popen')
@@ -200,19 +205,21 @@ class TestWeatherSatDecoder:
mock_pty.return_value = (10, 11)
mock_process = MagicMock()
mock_process.poll.return_value = None # Process still running
mock_popen.return_value = mock_process
decoder = WeatherSatDecoder()
callback = MagicMock()
decoder.set_callback(callback)
success = decoder.start_from_file(
success, error_msg = decoder.start_from_file(
satellite='NOAA-18',
input_file='data/test.wav',
sample_rate=1000000,
)
assert success is True
assert error_msg is None
assert decoder.is_running is True
assert decoder.current_satellite == 'NOAA-18'
@@ -236,7 +243,7 @@ class TestWeatherSatDecoder:
callback = MagicMock()
decoder.set_callback(callback)
success = decoder.start_from_file(
success, error_msg = decoder.start_from_file(
satellite='NOAA-18',
input_file='/etc/passwd',
)
@@ -259,7 +266,7 @@ class TestWeatherSatDecoder:
callback = MagicMock()
decoder.set_callback(callback)
success = decoder.start_from_file(
success, error_msg = decoder.start_from_file(
satellite='NOAA-18',
input_file='data/missing.wav',
)
@@ -426,12 +433,12 @@ class TestWeatherSatDecoder:
@patch('subprocess.run')
def test_resolve_device_id_fallback(self, mock_run):
"""_resolve_device_id() should fall back to index string."""
"""_resolve_device_id() should return None when no serial found."""
mock_run.side_effect = FileNotFoundError
serial = WeatherSatDecoder._resolve_device_id(0)
assert serial == '0'
assert serial is None
def test_parse_product_name_rgb(self):
"""_parse_product_name() should identify RGB composite."""