chore: fix pytest warnings from dataclasses starting with Test

[devin-ai-integration]

Preface from AJ (Aaron ("AJ") Steers (@aaronsteers))

This is a spinoff of cherry-picked improvements from:

• Feat: New CDK-Native FAST Standard tests, replaces CAT #349

It resolves many of the warnings from pytest (see below) that I ran into when working on that PR. They look like this: PytestCollectionWarning: cannot collect test class 'TestLimits' because it has a __init__ constructor

This happens because pytest interprets classes that start with the word Test as a pytest test class. The resolution is to declare __test__ = false in the class definition, which signals to Pytest that the class is not a test class.

Apart from resolving warnings and making more explicit, this is intended to be a no-op.

fix: dataclasses constructor and pytest warnings

Cherry-picked fixes from PR #349 (#349).

This PR contains only the commits marked 'cherry-pick-me' from the original PR, which fix dataclasses constructor issues and pytest warnings.

Pytest warnings being fixed

This PR resolves the following pytest warnings that occur when collecting tests:

/home/ubuntu/repos/airbyte-python-cdk/airbyte_cdk/connector_builder/connector_builder_handler.py:38: PytestCollectionWarning: cannot collect test class 'TestLimits' because it has a __init__ constructor (from: unit_tests/connector_builder/test_connector_builder_handler.py)
/home/ubuntu/repos/airbyte-python-cdk/airbyte_cdk/connector_builder/test_reader/reader.py:38: PytestCollectionWarning: cannot collect test class 'TestReader' because it has a __init__ constructor (from: unit_tests/connector_builder/test_message_grouper.py)
/home/ubuntu/repos/airbyte-python-cdk/unit_tests/sources/declarative/test_yaml_declarative_source.py:135: PytestCollectionWarning: cannot collect test class 'TestFileContent' because it has a __init__ constructor (from: unit_tests/sources/declarative/test_yaml_declarative_source.py)
/home/ubuntu/repos/airbyte-python-cdk/unit_tests/sources/declarative/decoders/test_composite_decoder.py:261: PytestCollectionWarning: cannot collect test class 'TestServer' because it has a __init__ constructor (from: unit_tests/sources/declarative/decoders/test_composite_decoder.py)
/home/ubuntu/repos/airbyte-python-cdk/unit_tests/sources/declarative/parsers/testing_components.py:34: PytestCollectionWarning: cannot collect test class 'TestingCustomSubstreamPartitionRouter' because it has a __init__ constructor (from: unit_tests/sources/declarative/parsers/test_model_to_component_factory.py)
/home/ubuntu/repos/airbyte-python-cdk/unit_tests/sources/declarative/parsers/testing_components.py:18: PytestCollectionWarning: cannot collect test class 'TestingSomeComponent' because it has a __init__ constructor (from: unit_tests/sources/declarative/parsers/test_model_to_component_factory.py)
/home/ubuntu/repos/airbyte-python-cdk/unit_tests/sources/file_based/scenarios/scenario_builder.py:44: PytestCollectionWarning: cannot collect test class 'TestScenario' because it has a __init__ constructor (from: unit_tests/sources/file_based/test_file_based_scenarios.py)
/home/ubuntu/repos/airbyte-python-cdk/unit_tests/sources/file_based/test_file_based_stream_reader.py:64: PytestCollectionWarning: cannot collect test class 'TestStreamReader' because it has a __init__ constructor (from: unit_tests/sources/file_based/test_file_based_stream_reader.py)
/home/ubuntu/repos/airbyte-python-cdk/unit_tests/sources/file_based/test_file_based_stream_reader.py:102: PytestCollectionWarning: cannot collect test class 'TestSpec' because it has a __init__ constructor (from: unit_tests/sources/file_based/test_file_based_stream_reader.py)
/home/ubuntu/repos/airbyte-python-cdk/unit_tests/sources/file_based/scenarios/scenario_builder.py:44: PytestCollectionWarning: cannot collect test class 'TestScenario' because it has a __init__ constructor (from: unit_tests/sources/file_based/test_scenarios.py)
/home/ubuntu/repos/airbyte-python-cdk/unit_tests/sources/file_based/scenarios/scenario_builder.py:44: PytestCollectionWarning: cannot collect test class 'TestScenario' because it has a __init__ constructor (from: unit_tests/sources/streams/concurrent/scenarios/test_concurrent_scenarios.py)

The fix sets __test__ = False on dataclasses that start with "Test" but aren't meant to be collected as test classes by pytest. This prevents pytest from attempting to collect these utility classes as test classes, which fails because they have __init__ constructors.

Link to Devin run: https://app.devin.ai/sessions/6873cfdb3cac4db2826146028138260c
Requested by: Aaron ("AJ") Steers (aj@airbyte.io)

[devin-ai-integration]

Original prompt from Aaron:

@Devin - Create a spin-off pr from this one: <https://github.com/airbytehq/airbyte-python-cdk/pull/349/files#diff-028df7a284a9b03a471679c4bf0777c9b8266e048af5be958ed27ca76aced304>

Just create a PR against main with the commits marked 'cherry-pick-me'

[devin-ai-integration]

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[Aaron ("AJ") Steers (aaronsteers)]

LGTM, but this is my spinoff. ✅
Would love another pair of eyes.

dismissed

[Ben Davis (bengineerdavis)]

These changes make sense to me, and it looks like we only need to customize this behavior for the specific classes concerned, so the default Pytest behavior will still apply everyone else.

LGTM.