File size: 10,622 Bytes
a5784e9
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
"""
Tests for stream/main.py - Entry point coverage.

Focus: Cover missing lines (66, 79-85, 110, 123-129).
Strategy: Test exception handlers, upstream proxy logging, default port assignment.
"""

import asyncio
import runpy
import sys
from unittest.mock import AsyncMock, MagicMock, patch

import pytest


def test_main_module_as_main():
    """
    Test scenario: Execute module in __main__ mode
    Expected: Cover line 129 (if __name__ == "__main__")
    """
    # Mock ProxyServer to avoid actually starting the proxy
    with (
        patch("stream.main.ProxyServer") as mock_proxy_class,
        patch("stream.main.parse_args") as mock_parse,
        patch("stream.main.asyncio.run") as mock_asyncio_run,
    ):
        mock_proxy = AsyncMock()
        mock_proxy.start = AsyncMock()
        mock_proxy_class.return_value = mock_proxy

        # Provide test arguments
        mock_args = MagicMock()
        mock_args.host = "127.0.0.1"
        mock_args.port = 3120
        mock_args.domains = ["*.google.com"]
        mock_args.proxy = None
        mock_parse.return_value = mock_args

        # Temporarily replace sys.argv to avoid argument parsing errors
        original_argv = sys.argv
        try:
            sys.argv = ["stream.main"]

            # Execute module as __main__ (covers line 129)
            runpy.run_module("stream.main", run_name="__main__")

            # Verify asyncio.run was called with main() (line 129)
            mock_asyncio_run.assert_called_once()
        finally:
            sys.argv = original_argv


@pytest.mark.asyncio
async def test_main_with_upstream_proxy_logging():
    """
    Test scenario: Log output when main() function uses upstream proxy
    Expected: Cover line 66 (if args.proxy: logger.info(...))
    """
    with (
        patch("stream.main.parse_args") as mock_parse,
        patch("stream.main.ProxyServer") as mock_proxy_class,
        patch("stream.main.logging.getLogger") as mock_get_logger,
    ):
        # Mock logger to capture log calls
        mock_logger = MagicMock()
        mock_get_logger.return_value = mock_logger

        # Mock arguments with upstream proxy
        mock_args = MagicMock()
        mock_args.host = "127.0.0.1"
        mock_args.port = 3120
        mock_args.domains = ["*.google.com"]
        mock_args.proxy = "http://upstream-proxy:8080"  # CRITICAL: upstream proxy set
        mock_parse.return_value = mock_args

        # Mock ProxyServer to raise KeyboardInterrupt immediately
        mock_proxy = AsyncMock()
        mock_proxy.start = AsyncMock(side_effect=KeyboardInterrupt)
        mock_proxy_class.return_value = mock_proxy

        # Import main function
        from stream.main import main

        # Run main() and expect KeyboardInterrupt to be caught
        await main()

        # Verify upstream proxy was logged (line 66)
        mock_logger.info.assert_any_call(
            "Using upstream proxy: http://upstream-proxy:8080"
        )


@pytest.mark.asyncio
async def test_main_keyboard_interrupt_handling():
    """
    Test scenario: main() function handles KeyboardInterrupt exception
    Expected: Cover lines 79-80 (except KeyboardInterrupt: logger.info(...))
    """
    with (
        patch("stream.main.parse_args") as mock_parse,
        patch("stream.main.ProxyServer") as mock_proxy_class,
        patch("stream.main.logging.getLogger") as mock_get_logger,
    ):
        mock_logger = MagicMock()
        mock_get_logger.return_value = mock_logger

        mock_args = MagicMock()
        mock_args.host = "127.0.0.1"
        mock_args.port = 3120
        mock_args.domains = ["*.google.com"]
        mock_args.proxy = None
        mock_parse.return_value = mock_args

        # Mock ProxyServer.start() to raise KeyboardInterrupt
        mock_proxy = AsyncMock()
        mock_proxy.start = AsyncMock(side_effect=KeyboardInterrupt)
        mock_proxy_class.return_value = mock_proxy

        from stream.main import main

        # Run main() - KeyboardInterrupt should be caught
        await main()

        # Verify shutdown message was logged (line 80)
        mock_logger.info.assert_any_call("Shutting down proxy server")


@pytest.mark.asyncio
async def test_main_cancelled_error_re_raising():
    """
    Test scenario: main() function re-throws CancelledError
    Expected: Cover lines 81-82 (except asyncio.CancelledError: raise)
    """
    with (
        patch("stream.main.parse_args") as mock_parse,
        patch("stream.main.ProxyServer") as mock_proxy_class,
    ):
        mock_args = MagicMock()
        mock_args.host = "127.0.0.1"
        mock_args.port = 3120
        mock_args.domains = ["*.google.com"]
        mock_args.proxy = None
        mock_parse.return_value = mock_args

        # Mock ProxyServer.start() to raise CancelledError
        mock_proxy = AsyncMock()
        mock_proxy.start = AsyncMock(side_effect=asyncio.CancelledError)
        mock_proxy_class.return_value = mock_proxy

        from stream.main import main

        # Run main() - CancelledError should be re-raised
        with pytest.raises(asyncio.CancelledError):
            await main()


@pytest.mark.asyncio
async def test_main_generic_exception_handling():
    """
    Test scenario: main() function handles generic exception and exits
    Expected: Cover lines 83-85 (except Exception: logger.error(...); sys.exit(1))
    """
    with (
        patch("stream.main.parse_args") as mock_parse,
        patch("stream.main.ProxyServer") as mock_proxy_class,
        patch("stream.main.logging.getLogger") as mock_get_logger,
        patch("stream.main.sys.exit") as mock_sys_exit,
    ):
        mock_logger = MagicMock()
        mock_get_logger.return_value = mock_logger

        mock_args = MagicMock()
        mock_args.host = "127.0.0.1"
        mock_args.port = 3120
        mock_args.domains = ["*.google.com"]
        mock_args.proxy = None
        mock_parse.return_value = mock_args

        # Mock ProxyServer.start() to raise generic exception
        test_error = RuntimeError("Proxy server startup failed")
        mock_proxy = AsyncMock()
        mock_proxy.start = AsyncMock(side_effect=test_error)
        mock_proxy_class.return_value = mock_proxy

        from stream.main import main

        # Run main() - generic exception should be caught
        await main()

        # Verify error was logged (line 84)
        mock_logger.error.assert_called_once_with(
            f"Error starting proxy server: {test_error}", exc_info=True
        )

        # Verify sys.exit(1) was called (line 85)
        mock_sys_exit.assert_called_once_with(1)


@pytest.mark.asyncio
async def test_builtin_with_default_port():
    """
    Test scenario: builtin() function uses default port when port=None
    Expected: Cover line 110 (if port is None: port = 3120)
    """
    with (
        patch("stream.main.ProxyServer") as mock_proxy_class,
        patch("stream.main.logging.getLogger") as mock_get_logger,
    ):
        mock_logger = MagicMock()
        mock_get_logger.return_value = mock_logger

        # Mock ProxyServer to immediately raise KeyboardInterrupt
        mock_proxy = AsyncMock()
        mock_proxy.start = AsyncMock(side_effect=KeyboardInterrupt)
        mock_proxy_class.return_value = mock_proxy

        from stream.main import builtin

        # Call builtin with port=None (line 110 should execute)
        await builtin(queue=None, port=None, proxy=None)

        # Verify ProxyServer was created with default port 3120
        mock_proxy_class.assert_called_once()
        call_kwargs = mock_proxy_class.call_args[1]
        assert call_kwargs["port"] == 3120  # Default port was used


@pytest.mark.asyncio
async def test_builtin_keyboard_interrupt_handling():
    """
    Test scenario: builtin() function handles KeyboardInterrupt exception
    Expected: Cover lines 123-124 (except KeyboardInterrupt: logger.info(...))
    """
    with (
        patch("stream.main.ProxyServer") as mock_proxy_class,
        patch("stream.main.logging.getLogger") as mock_get_logger,
    ):
        mock_logger = MagicMock()
        mock_get_logger.return_value = mock_logger

        # Mock ProxyServer.start() to raise KeyboardInterrupt
        mock_proxy = AsyncMock()
        mock_proxy.start = AsyncMock(side_effect=KeyboardInterrupt)
        mock_proxy_class.return_value = mock_proxy

        from stream.main import builtin

        # Run builtin() - KeyboardInterrupt should be caught
        await builtin(queue=None, port=3120, proxy=None)

        # Verify shutdown message was logged (line 124)
        mock_logger.info.assert_any_call("Shutting down proxy server")


@pytest.mark.asyncio
async def test_builtin_cancelled_error_re_raising():
    """
    Test scenario: builtin() function re-throws CancelledError
    Expected: Cover lines 125-126 (except asyncio.CancelledError: raise)
    """
    with patch("stream.main.ProxyServer") as mock_proxy_class:
        # Mock ProxyServer.start() to raise CancelledError
        mock_proxy = AsyncMock()
        mock_proxy.start = AsyncMock(side_effect=asyncio.CancelledError)
        mock_proxy_class.return_value = mock_proxy

        from stream.main import builtin

        # Run builtin() - CancelledError should be re-raised
        with pytest.raises(asyncio.CancelledError):
            await builtin(queue=None, port=3120, proxy=None)


@pytest.mark.asyncio
async def test_builtin_generic_exception_handling():
    """
    Test scenario: builtin() function handles generic exception and exits
    Expected: Cover lines 127-129 (except Exception: logger.error(...); sys.exit(1))
    """
    with (
        patch("stream.main.ProxyServer") as mock_proxy_class,
        patch("stream.main.logging.getLogger") as mock_get_logger,
        patch("stream.main.sys.exit") as mock_sys_exit,
    ):
        mock_logger = MagicMock()
        mock_get_logger.return_value = mock_logger

        # Mock ProxyServer.start() to raise generic exception
        test_error = RuntimeError("Critical proxy failure")
        mock_proxy = AsyncMock()
        mock_proxy.start = AsyncMock(side_effect=test_error)
        mock_proxy_class.return_value = mock_proxy

        from stream.main import builtin

        # Run builtin() - generic exception should be caught
        await builtin(queue=None, port=3120, proxy=None)

        # Verify error was logged (line 128)
        mock_logger.error.assert_called_once_with(
            f"Error starting proxy server: {test_error}", exc_info=True
        )

        # Verify sys.exit(1) was called (line 129)
        mock_sys_exit.assert_called_once_with(1)