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## What
* After https://github.com/airbytehq/airbyte/pull/35905, we should be emitting a state message with every successful sync. However there are a few tests that were too lenient and weren't actually _successful_ syncs. This PR fixes those cases and adds validation that we emit at least one state message per successful sync.
## How
* Add an assertion that we get at least 1 state message for a successful sync
* Fix some tests that previously "output 0 expected records" but actually errored silently - do not run them as read tests
* Fix a test that failed silently due to lack of support for multi-format
* Add a new test for syncs that output 0 records successfully
## 🚨 User Impact 🚨
None - test changes
## Pre-merge Actions
*Expand the relevant checklist and delete the others.*
<details><summary><strong>New Connector</strong></summary>
### Community member or Airbyter
- **Community member?** Grant edit access to maintainers ([instructions](https://docs.github.com/en/github/collaborating-with-pull-requests/working-with-forks/allowing-changes-to-a-pull-request-branch-created-from-a-fork#enabling-repository-maintainer-permissions-on-existing-pull-requests))
- Unit & integration tests added and passing. Community members, please provide proof of success locally e.g: screenshot or copy-paste unit, integration, and acceptance test output. To run acceptance tests for a Python connector, follow instructions in the README. For java connectors run `./gradlew :airbyte-integrations:connectors:<name>:integrationTest`.
- Connector version is set to `0.0.1`
- `Dockerfile` has version `0.0.1`
- Documentation updated
- Connector's `README.md`
- Connector's `bootstrap.md`. See [description and examples](https://docs.google.com/document/d/1ypdgmwmEHWv-TrO4_YOQ7pAJGVrMp5BOkEVh831N260/edit?usp=sharing)
- `docs/integrations/<source or destination>/<name>.md` including changelog with an entry for the initial version. See changelog [example](https://docs.airbyte.io/integrations/sources/stripe#changelog)
- `docs/integrations/README.md`
### Airbyter
If this is a community PR, the Airbyte engineer reviewing this PR is responsible for the below items.
- Create a non-forked branch based on this PR and test the below items on it
- Build is successful
- If new credentials are required for use in CI, add them to GSM. [Instructions](https://docs.airbyte.io/connector-development#using-credentials-in-ci).
</details>
<details><summary><strong>Updating a connector</strong></summary>
### Community member or Airbyter
- Grant edit access to maintainers ([instructions](https://docs.github.com/en/github/collaborating-with-pull-requests/working-with-forks/allowing-changes-to-a-pull-request-branch-created-from-a-fork#enabling-repository-maintainer-permissions-on-existing-pull-requests))
- Unit & integration tests added
### Airbyter
If this is a community PR, the Airbyte engineer reviewing this PR is responsible for the below items.
- Create a non-forked branch based on this PR and test the below items on it
- Build is successful
- If new credentials are required for use in CI, add them to GSM. [Instructions](https://docs.airbyte.io/connector-development#using-credentials-in-ci).
</details>
<details><summary><strong>Connector Generator</strong></summary>
- Issue acceptance criteria met
- PR name follows [PR naming conventions](https://docs.airbyte.com/contributing-to-airbyte/resources/pull-requests-handbook)
- If adding a new generator, add it to the [list of scaffold modules being tested](https://github.com/airbytehq/airbyte/blob/master/airbyte-integrations/connector-templates/generator/build.gradle#L41)
- The generator test modules (all connectors with `-scaffold` in their name) have been updated with the latest scaffold by running `./gradlew :airbyte-integrations:connector-templates:generator:generateScaffolds` then checking in your changes
- Documentation which references the generator is updated as needed
</details>
<details><summary><strong>Updating the Python CDK</strong></summary>
### Airbyter
Before merging:
- Pull Request description explains what problem it is solving
- Code change is unit tested
- Build and my-py check pass
- Smoke test the change on at least one affected connector
- On Github: Run [this workflow](https://github.com/airbytehq/airbyte/actions/workflows/connectors_tests.yml), passing `--use-local-cdk --name=source-<connector>` as options
- Locally: `airbyte-ci connectors --use-local-cdk --name=source-<connector> test`
- PR is reviewed and approved
After merging:
- [Publish the CDK](https://github.com/airbytehq/airbyte/actions/workflows/publish-cdk-command-manually.yml)
- The CDK does not follow proper semantic versioning. Choose minor if this the change has significant user impact or is a breaking change. Choose patch otherwise.
- Write a thoughtful changelog message so we know what was updated.
- Merge the platform PR that was auto-created for updating the Connector Builder's CDK version
- This step is optional if the change does not affect the connector builder or declarative connectors.
</details>
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All the information you need can be found here:
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## What
* Closes https://github.com/airbytehq/airbyte/issues/34151
* Closes https://github.com/airbytehq/oncall/issues/4386
## How
Handle cases where the python value of a pyarrow scalar is None. This can be due to null values in data, as well as null-like values like `NaT` (similar to `NaN`). We previously handled this for `None` binary types, but now handle this for `None` of any type.
## 🚨 User Impact 🚨
No breaking changes. After this CDK version is released we should update the CDK dependency in S3 and any other file sources that parse parquet
## Pre-merge Actions
*Expand the relevant checklist and delete the others.*
<details><summary><strong>New Connector</strong></summary>
### Community member or Airbyter
- **Community member?** Grant edit access to maintainers ([instructions](https://docs.github.com/en/github/collaborating-with-pull-requests/working-with-forks/allowing-changes-to-a-pull-request-branch-created-from-a-fork#enabling-repository-maintainer-permissions-on-existing-pull-requests))
- Unit & integration tests added and passing. Community members, please provide proof of success locally e.g: screenshot or copy-paste unit, integration, and acceptance test output. To run acceptance tests for a Python connector, follow instructions in the README. For java connectors run `./gradlew :airbyte-integrations:connectors:<name>:integrationTest`.
- Connector version is set to `0.0.1`
- `Dockerfile` has version `0.0.1`
- Documentation updated
- Connector's `README.md`
- Connector's `bootstrap.md`. See [description and examples](https://docs.google.com/document/d/1ypdgmwmEHWv-TrO4_YOQ7pAJGVrMp5BOkEVh831N260/edit?usp=sharing)
- `docs/integrations/<source or destination>/<name>.md` including changelog with an entry for the initial version. See changelog [example](https://docs.airbyte.io/integrations/sources/stripe#changelog)
- `docs/integrations/README.md`
### Airbyter
If this is a community PR, the Airbyte engineer reviewing this PR is responsible for the below items.
- Create a non-forked branch based on this PR and test the below items on it
- Build is successful
- If new credentials are required for use in CI, add them to GSM. [Instructions](https://docs.airbyte.io/connector-development#using-credentials-in-ci).
</details>
<details><summary><strong>Updating a connector</strong></summary>
### Community member or Airbyter
- Grant edit access to maintainers ([instructions](https://docs.github.com/en/github/collaborating-with-pull-requests/working-with-forks/allowing-changes-to-a-pull-request-branch-created-from-a-fork#enabling-repository-maintainer-permissions-on-existing-pull-requests))
- Unit & integration tests added
### Airbyter
If this is a community PR, the Airbyte engineer reviewing this PR is responsible for the below items.
- Create a non-forked branch based on this PR and test the below items on it
- Build is successful
- If new credentials are required for use in CI, add them to GSM. [Instructions](https://docs.airbyte.io/connector-development#using-credentials-in-ci).
</details>
<details><summary><strong>Connector Generator</strong></summary>
- Issue acceptance criteria met
- PR name follows [PR naming conventions](https://docs.airbyte.com/contributing-to-airbyte/resources/pull-requests-handbook)
- If adding a new generator, add it to the [list of scaffold modules being tested](https://github.com/airbytehq/airbyte/blob/master/airbyte-integrations/connector-templates/generator/build.gradle#L41)
- The generator test modules (all connectors with `-scaffold` in their name) have been updated with the latest scaffold by running `./gradlew :airbyte-integrations:connector-templates:generator:generateScaffolds` then checking in your changes
- Documentation which references the generator is updated as needed
</details>
<details><summary><strong>Updating the Python CDK</strong></summary>
### Airbyter
Before merging:
- Pull Request description explains what problem it is solving
- Code change is unit tested
- Build and my-py check pass
- Smoke test the change on at least one affected connector
- On Github: Run [this workflow](https://github.com/airbytehq/airbyte/actions/workflows/connectors_tests.yml), passing `--use-local-cdk --name=source-<connector>` as options
- Locally: `airbyte-ci connectors --use-local-cdk --name=source-<connector> test`
- PR is reviewed and approved
After merging:
- [Publish the CDK](https://github.com/airbytehq/airbyte/actions/workflows/publish-cdk-command-manually.yml)
- The CDK does not follow proper semantic versioning. Choose minor if this the change has significant user impact or is a breaking change. Choose patch otherwise.
- Write a thoughtful changelog message so we know what was updated.
- Merge the platform PR that was auto-created for updating the Connector Builder's CDK version
- This step is optional if the change does not affect the connector builder or declarative connectors.
</details>
