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456 lines
15 KiB
Python
456 lines
15 KiB
Python
"""Tests for Meshtastic integration.
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Tests cover:
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- MeshtasticClient initialization and state management
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- PSK parsing (various formats)
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- Message callback handling
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- Route endpoints (mocked)
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- Graceful degradation when SDK not installed
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"""
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import json
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from datetime import datetime, timezone
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from unittest.mock import Mock, patch
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import pytest
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# =============================================================================
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# Utility Module Tests
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# =============================================================================
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class TestMeshtasticAvailability:
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"""Tests for SDK availability checks."""
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def test_is_meshtastic_available_returns_bool(self):
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"""is_meshtastic_available should return a boolean."""
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from utils.meshtastic import is_meshtastic_available
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result = is_meshtastic_available()
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assert isinstance(result, bool)
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class TestMeshtasticMessage:
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"""Tests for MeshtasticMessage dataclass."""
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def test_message_to_dict(self):
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"""MeshtasticMessage should convert to dictionary."""
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from utils.meshtastic import MeshtasticMessage
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msg = MeshtasticMessage(
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from_id='!a1b2c3d4',
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to_id='^all',
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message='Hello mesh!',
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portnum='TEXT_MESSAGE_APP',
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channel=0,
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rssi=-95,
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snr=-3.5,
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hop_limit=3,
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timestamp=datetime(2026, 1, 27, 12, 0, 0, tzinfo=timezone.utc),
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)
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d = msg.to_dict()
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assert d['type'] == 'meshtastic'
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assert d['from'] == '!a1b2c3d4'
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assert d['to'] == '^all'
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assert d['message'] == 'Hello mesh!'
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assert d['portnum'] == 'TEXT_MESSAGE_APP'
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assert d['channel'] == 0
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assert d['rssi'] == -95
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assert d['snr'] == -3.5
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assert d['hop_limit'] == 3
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assert '2026-01-27' in d['timestamp']
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def test_message_with_none_values(self):
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"""MeshtasticMessage should handle None values."""
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from utils.meshtastic import MeshtasticMessage
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msg = MeshtasticMessage(
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from_id='!00000001',
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to_id='!00000002',
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message=None,
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portnum='POSITION_APP',
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channel=1,
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rssi=None,
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snr=None,
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hop_limit=None,
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timestamp=datetime.now(timezone.utc),
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)
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d = msg.to_dict()
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assert d['message'] is None
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assert d['rssi'] is None
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assert d['snr'] is None
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class TestChannelConfig:
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"""Tests for ChannelConfig dataclass."""
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def test_channel_to_dict_hides_psk(self):
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"""ChannelConfig.to_dict should not expose raw PSK."""
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from utils.meshtastic import ChannelConfig
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config = ChannelConfig(
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index=0,
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name='Primary',
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psk=b'\x01\x02\x03\x04' * 8, # 32-byte key
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role=1, # PRIMARY
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)
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d = config.to_dict()
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assert 'psk' not in d # Raw PSK should not be in dict
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assert d['index'] == 0
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assert d['name'] == 'Primary'
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assert d['role'] == 'PRIMARY'
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assert d['encrypted'] is True
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assert d['key_type'] == 'AES-256'
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def test_channel_default_key_detection(self):
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"""ChannelConfig should detect default key."""
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from utils.meshtastic import ChannelConfig
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# Default key is single byte 0x01
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config = ChannelConfig(index=0, name='Test', psk=b'\x01', role=1)
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d = config.to_dict()
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assert d['is_default_key'] is True
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assert d['key_type'] == 'default'
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def test_channel_aes128_detection(self):
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"""ChannelConfig should detect AES-128 key."""
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from utils.meshtastic import ChannelConfig
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config = ChannelConfig(index=0, name='Test', psk=b'0' * 16, role=1)
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d = config.to_dict()
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assert d['key_type'] == 'AES-128'
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assert d['encrypted'] is True
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def test_channel_no_encryption(self):
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"""ChannelConfig should detect no encryption."""
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from utils.meshtastic import ChannelConfig
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config = ChannelConfig(index=0, name='Test', psk=b'', role=1)
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d = config.to_dict()
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assert d['key_type'] == 'none'
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assert d['encrypted'] is False
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class TestPSKParsing:
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"""Tests for PSK format parsing."""
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def test_parse_psk_none(self):
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"""Should parse 'none' as empty bytes."""
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from utils.meshtastic import MeshtasticClient
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client = MeshtasticClient()
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result = client._parse_psk('none')
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assert result == b''
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def test_parse_psk_default(self):
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"""Should parse 'default' as single byte."""
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from utils.meshtastic import MeshtasticClient
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client = MeshtasticClient()
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result = client._parse_psk('default')
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assert result == b'\x01'
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def test_parse_psk_random(self):
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"""Should generate 32 random bytes for 'random'."""
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from utils.meshtastic import MeshtasticClient
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client = MeshtasticClient()
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result = client._parse_psk('random')
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assert len(result) == 32
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# Verify it's actually random (two calls should differ)
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result2 = client._parse_psk('random')
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assert result != result2
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def test_parse_psk_base64(self):
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"""Should decode base64 PSK."""
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import base64
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from utils.meshtastic import MeshtasticClient
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client = MeshtasticClient()
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# 32-byte key encoded as base64
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key = b'A' * 32
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encoded = 'base64:' + base64.b64encode(key).decode()
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result = client._parse_psk(encoded)
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assert result == key
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def test_parse_psk_hex(self):
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"""Should decode hex PSK."""
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from utils.meshtastic import MeshtasticClient
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client = MeshtasticClient()
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# 16-byte key as hex
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result = client._parse_psk('0x' + '41' * 16)
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assert result == b'A' * 16
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def test_parse_psk_simple_passphrase(self):
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"""Should hash simple passphrase to 32-byte key."""
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import hashlib
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from utils.meshtastic import MeshtasticClient
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client = MeshtasticClient()
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result = client._parse_psk('simple:MySecretPassword')
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expected = hashlib.sha256(b'MySecretPassword').digest()
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assert result == expected
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assert len(result) == 32
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def test_parse_psk_invalid(self):
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"""Should return None for invalid PSK format."""
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from utils.meshtastic import MeshtasticClient
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client = MeshtasticClient()
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assert client._parse_psk('base64:!!!invalid!!!') is None
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assert client._parse_psk('0xZZZZ') is None
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def test_parse_psk_raw_base64(self):
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"""Should accept raw base64 without prefix."""
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import base64
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from utils.meshtastic import MeshtasticClient
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client = MeshtasticClient()
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key = b'B' * 16
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encoded = base64.b64encode(key).decode()
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result = client._parse_psk(encoded)
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assert result == key
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class TestNodeIdFormatting:
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"""Tests for node ID formatting."""
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def test_format_regular_node(self):
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"""Should format regular node as hex."""
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from utils.meshtastic import MeshtasticClient
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result = MeshtasticClient._format_node_id(0xDEADBEEF)
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assert result == '!deadbeef'
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def test_format_broadcast(self):
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"""Should format broadcast address."""
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from utils.meshtastic import MeshtasticClient
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result = MeshtasticClient._format_node_id(0xFFFFFFFF)
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assert result == '^all'
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# =============================================================================
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# Route Tests (Mocked)
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# =============================================================================
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class TestMeshtasticRoutes:
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"""Tests for Flask route endpoints."""
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@pytest.fixture
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def app(self):
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"""Create Flask test app."""
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from flask import Flask
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from routes.meshtastic import meshtastic_bp
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app = Flask(__name__)
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app.config['TESTING'] = True
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app.register_blueprint(meshtastic_bp)
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return app
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@pytest.fixture
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def client(self, app):
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"""Create test client."""
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return app.test_client()
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def test_status_sdk_not_installed(self, client):
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"""GET /meshtastic/status should report SDK unavailable."""
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with patch('routes.meshtastic.is_meshtastic_available', return_value=False):
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response = client.get('/meshtastic/status')
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data = json.loads(response.data)
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assert response.status_code == 200
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assert data['available'] is False
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assert 'not installed' in data['error']
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def test_status_not_connected(self, client):
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"""GET /meshtastic/status should report not running when disconnected."""
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with patch('routes.meshtastic.is_meshtastic_available', return_value=True):
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with patch('routes.meshtastic.get_meshtastic_client', return_value=None):
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response = client.get('/meshtastic/status')
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data = json.loads(response.data)
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assert response.status_code == 200
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assert data['available'] is True
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assert data['running'] is False
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def test_start_sdk_not_installed(self, client):
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"""POST /meshtastic/start should fail if SDK not installed."""
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with patch('routes.meshtastic.is_meshtastic_available', return_value=False):
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response = client.post('/meshtastic/start')
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data = json.loads(response.data)
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assert response.status_code == 400
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assert data['status'] == 'error'
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def test_stop_always_succeeds(self, client):
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"""POST /meshtastic/stop should always succeed."""
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with patch('routes.meshtastic.stop_meshtastic'):
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response = client.post('/meshtastic/stop')
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data = json.loads(response.data)
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assert response.status_code == 200
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assert data['status'] == 'stopped'
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def test_channels_not_connected(self, client):
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"""GET /meshtastic/channels should fail if not connected."""
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with patch('routes.meshtastic.get_meshtastic_client', return_value=None):
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response = client.get('/meshtastic/channels')
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data = json.loads(response.data)
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assert response.status_code == 400
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assert 'Not connected' in data['message']
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def test_configure_channel_invalid_index(self, client):
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"""POST /meshtastic/channels/<id> should reject invalid index."""
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mock_client = Mock()
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mock_client.is_running = True
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with patch('routes.meshtastic.get_meshtastic_client', return_value=mock_client):
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response = client.post(
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'/meshtastic/channels/10',
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json={'name': 'Test'},
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content_type='application/json'
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)
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data = json.loads(response.data)
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assert response.status_code == 400
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assert 'must be 0-7' in data['message']
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def test_configure_channel_no_params(self, client):
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"""POST /meshtastic/channels/<id> should require name or psk."""
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mock_client = Mock()
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mock_client.is_running = True
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with patch('routes.meshtastic.get_meshtastic_client', return_value=mock_client):
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response = client.post(
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'/meshtastic/channels/0',
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json={},
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content_type='application/json'
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)
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data = json.loads(response.data)
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assert response.status_code == 400
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assert 'Must provide' in data['message']
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def test_messages_empty(self, client):
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"""GET /meshtastic/messages should return empty list initially."""
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with patch('routes.meshtastic._recent_messages', []):
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response = client.get('/meshtastic/messages')
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data = json.loads(response.data)
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assert response.status_code == 200
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assert data['status'] == 'ok'
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assert data['messages'] == []
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assert data['count'] == 0
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def test_messages_with_limit(self, client):
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"""GET /meshtastic/messages should respect limit param."""
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test_messages = [{'id': i} for i in range(10)]
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with patch('routes.meshtastic._recent_messages', test_messages):
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response = client.get('/meshtastic/messages?limit=3')
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data = json.loads(response.data)
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assert response.status_code == 200
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assert len(data['messages']) == 3
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# Should return last 3 (most recent)
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assert data['messages'][0]['id'] == 7
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def test_messages_filter_by_channel(self, client):
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"""GET /meshtastic/messages should filter by channel."""
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test_messages = [
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{'id': 1, 'channel': 0},
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{'id': 2, 'channel': 1},
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{'id': 3, 'channel': 0},
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]
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with patch('routes.meshtastic._recent_messages', test_messages):
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response = client.get('/meshtastic/messages?channel=0')
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data = json.loads(response.data)
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assert response.status_code == 200
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assert len(data['messages']) == 2
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assert all(m['channel'] == 0 for m in data['messages'])
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def test_stream_endpoint_exists(self, client):
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"""GET /meshtastic/stream should return SSE content type."""
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response = client.get('/meshtastic/stream')
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assert response.content_type == 'text/event-stream'
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def test_node_not_connected(self, client):
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"""GET /meshtastic/node should fail if not connected."""
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with patch('routes.meshtastic.get_meshtastic_client', return_value=None):
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response = client.get('/meshtastic/node')
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data = json.loads(response.data)
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assert response.status_code == 400
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assert 'Not connected' in data['message']
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# =============================================================================
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# Integration Tests (Mocked SDK)
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# =============================================================================
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class TestMeshtasticClientMocked:
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"""Tests for MeshtasticClient with mocked SDK."""
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def test_client_init(self):
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"""MeshtasticClient should initialize with default state."""
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from utils.meshtastic import MeshtasticClient
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client = MeshtasticClient()
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assert client.is_running is False
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assert client.device_path is None
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assert client.error is None
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def test_client_connect_no_sdk(self):
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"""MeshtasticClient.connect should fail gracefully without SDK."""
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from utils.meshtastic import MeshtasticClient
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with patch('utils.meshtastic.HAS_MESHTASTIC', False):
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client = MeshtasticClient()
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result = client.connect()
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assert result is False
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assert 'not installed' in client.error
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def test_client_disconnect_idempotent(self):
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"""MeshtasticClient.disconnect should be safe to call multiple times."""
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from utils.meshtastic import MeshtasticClient
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client = MeshtasticClient()
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# Should not raise even when not connected
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client.disconnect()
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client.disconnect()
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assert client.is_running is False
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