When testing on the expanded matrix, run tests on M1 Mac (via custom runner) as well.

[jonsimantov]

Description

Provide details of the change, and generalize the change in the PR title above.

If running tests against the expanded matrix, it will build an ARM64 version of the integration tests, and run it on an M1 Mac GitHub runner that we host ourselves.

For security purposes, this job does not use any third-party marketplace actions, nor does it pass in secrets on the command line.

The test_desktop_custom_runner step is written as generically as possible to support other custom runners we may add in the future.

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Testing

Describe how you've tested these changes. Link any manually triggered Integration tests or CPP binary SDK Packaging Github Action workflows, if applicable.

Run integration-tests workflow on the expanded matrix. This works both on prebuilt SDK and from source.

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Type of Change

Place an x the applicable box:

• Bug fix. Add the issue # below if applicable.
• New feature. A non-breaking change which adds functionality.
• Other, such as a build process or documentation change.

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Notes

• Bug fixes and feature changes require an update to the Release Notes section of release_build_files/readme.md.
• Read the contribution guidelines CONTRIBUTING.md.
• Changes to the public API require an internal API review. If you'd like to help us make Firebase APIs better, please propose your change in a feature request so that we can discuss it together.

[jonsimantov]

@sunmou99 I'm still considering this a draft change because I want to make sure that the runner is stable before merging this, but could you take a look at the changes I've made in this PR and give me your comments?

In particular I am wondering if it would be better to separate out architecture in the summarize script rather than the hack I've done. I'm hoping to try adding x86 integration tests soon (on linux/windows), so maybe that would be a better time to make that change.

(Run on a packaged SDK is here.)

[sunmou99]

I prefer to have only one MacOS, and make arch as a secondary description. Some more extra work is required here for the result summary report. I'll figure it out.

[jonsimantov]

Do you want to work in this same branch?