Added (disabled) composition integration test

[qstokkink]

This PR:

• Adds an integration test to check all possible user configurations.
• Fixes the TorrentCheckerComponent assuming that the database is always available.
• Fixes the TriblerTunnelCommunity not get the ltsession async in update_ip_filter.
• Fixes test_stream using AsyncMock for update_priorities (should be Mock).
• Fixes test_download_manager not mocking downloads correctly in two tests.

The last three fixes were not intended, but I discovered them while trying to work out that GitHub Actions "segfaults" the integration tests when using unittest.skip.

[qstokkink]

While debugging mysterious GitHub Action failure, found:

Exception occurred while handling packet!
Traceback (most recent call last):
  File "tribler/pyipv8/ipv8/messaging/anonymization/community.py", line 722, in on_packet_from_circuit
    result = handler(source_address, data, circuit_id)
  File "tribler/src/tribler/core/tunnel/community.py", line 360, in on_rendezvous_established
    self.update_ip_filter(circuit.info_hash)
  File "tribler/src/tribler/core/tunnel/community.py", line 371, in update_ip_filter
    self.settings.download_manager.update_ip_filter(lt_session, ip_addresses)
  File "tribler/src/tribler/core/libtorrent/download_manager/download_manager.py", line 533, in update_ip_filter
    lt_session.set_ip_filter(ip_filter)
AttributeError: '_asyncio.Future' object has no attribute 'set_ip_filter'
Traceback (most recent call last):
  File "tribler/pyipv8/ipv8/messaging/anonymization/community.py", line 722, in on_packet_from_circuit
    result = handler(source_address, data, circuit_id)
  File "tribler/src/tribler/core/tunnel/community.py", line 360, in on_rendezvous_established
    self.update_ip_filter(circuit.info_hash)
  File "tribler/src/tribler/core/tunnel/community.py", line 371, in update_ip_filter
    self.settings.download_manager.update_ip_filter(lt_session, ip_addresses)
  File "tribler/src/tribler/core/libtorrent/download_manager/download_manager.py", line 533, in update_ip_filter
    lt_session.set_ip_filter(ip_filter)
AttributeError: '_asyncio.Future' object has no attribute 'set_ip_filter'

Fixed in this PR

[qstokkink]

Found another in output:

 /home/runner/work/tribler/tribler/src/tribler/core/libtorrent/download_manager/stream.py:282: RuntimeWarning: coroutine 'AsyncMockMixin._execute_mock_call' was never awaited
Coroutine created at (most recent call last)
  File "/opt/hostedtoolcache/Python/3.10.16/x64/lib/python3.10/asyncio/base_events.py", line 636, in run_until_complete
    self.run_forever()
  File "/opt/hostedtoolcache/Python/3.10.16/x64/lib/python3.10/asyncio/base_events.py", line 603, in run_forever
    self._run_once()
  File "/opt/hostedtoolcache/Python/3.10.16/x64/lib/python3.10/asyncio/base_events.py", line 1901, in _run_once
    handle._run()
  File "/opt/hostedtoolcache/Python/3.10.16/x64/lib/python3.10/asyncio/events.py", line 80, in _run
    self._context.run(self._callback, *self._args)
  File "/opt/hostedtoolcache/Python/3.10.16/x64/lib/python3.10/unittest/async_case.py", line 101, in _asyncioLoopRunner
    ret = await awaitable
  File "/home/runner/work/tribler/tribler/src/tribler/test_unit/core/libtorrent/download_manager/test_stream.py", line 118, in test_read_multiple_pieces
    streamed += await self.chunk.read()
  File "/home/runner/work/tribler/tribler/src/tribler/core/libtorrent/download_manager/stream.py", line 297, in read
    await self.seek(self.seek_offset)
  File "/home/runner/work/tribler/tribler/src/tribler/core/libtorrent/download_manager/stream.py", line 282, in seek
    self.stream.update_priorities()
  File "/opt/hostedtoolcache/Python/3.10.16/x64/lib/python3.10/unittest/mock.py", line 1114, in __call__
    return self._mock_call(*args, **kwargs)
  File "/opt/hostedtoolcache/Python/3.10.16/x64/lib/python3.10/unittest/mock.py", line 1118, in _mock_call
    return self._execute_mock_call(*args, **kwargs)
  self.stream.update_priorities()
RuntimeWarning: Enable tracemalloc to get the object allocation traceback

Fixed in this PR

[qstokkink]

Still not entirely sure why validate is failing on the Action, found another traceback:

/home/runner/work/tribler/tribler/src/tribler/core/libtorrent/download_manager/download_manager.py:660: RuntimeWarning: coroutine 'AsyncMockMixin._execute_mock_call' was never awaited
Coroutine created at (most recent call last)
  File "/opt/hostedtoolcache/Python/3.10.16/x64/lib/python3.10/unittest/case.py", line 591, in run
    self._callTestMethod(testMethod)
  File "/opt/hostedtoolcache/Python/3.10.16/x64/lib/python3.10/unittest/async_case.py", line 64, in _callTestMethod
    self._callMaybeAsync(method)
  File "/opt/hostedtoolcache/Python/3.10.16/x64/lib/python3.10/unittest/async_case.py", line 87, in _callMaybeAsync
    return self._asyncioTestLoop.run_until_complete(fut)
  File "/opt/hostedtoolcache/Python/3.10.16/x64/lib/python3.10/asyncio/base_events.py", line 636, in run_until_complete
    self.run_forever()
  File "/opt/hostedtoolcache/Python/3.10.16/x64/lib/python3.10/asyncio/base_events.py", line 603, in run_forever
    self._run_once()
  File "/opt/hostedtoolcache/Python/3.10.16/x64/lib/python3.10/asyncio/base_events.py", line 1901, in _run_once
    handle._run()
  File "/opt/hostedtoolcache/Python/3.10.16/x64/lib/python3.10/asyncio/events.py", line 80, in _run
    self._context.run(self._callback, *self._args)
  File "/home/runner/work/tribler/tribler/src/tribler/core/libtorrent/download_manager/download_manager.py", line 660, in add_helpers_later
    download.add_trackers([t.encode() for t in params.trackers])
  File "/opt/hostedtoolcache/Python/3.10.16/x64/lib/python3.10/unittest/mock.py", line 1114, in __call__
    return self._mock_call(*args, **kwargs)
  File "/opt/hostedtoolcache/Python/3.10.16/x64/lib/python3.10/unittest/mock.py", line 1118, in _mock_call
    return self._execute_mock_call(*args, **kwargs)
  download.add_trackers([t.encode() for t in params.trackers])
RuntimeWarning: Enable tracemalloc to get the object allocation traceback

Fixed in this PR

[qstokkink]

😑 ok, so, apparently the GitHub Actions running REALLY doesn't like unittest.skip.

[qstokkink]

validate