feat: make override_primary_test_model_id Fusion compatible

[devin-ai-integration]

feat: make override_primary_test_model_id Fusion compatible

Summary

Resolves #929

dbt Fusion does not support arbitrary keys in config() blocks — custom values must be placed inside meta. This PR adds a fallback so that override_primary_test_model_id is also read from the unified meta dict (which merges config(meta={...}) and top-level meta) when not found directly in config_dict.

Precedence: config_dict → meta (direct config wins).

Review & Testing Checklist for Human

• Confirm the or fallback precedence is correct — config_dict value takes priority over meta. If a user sets it in both places, the config_dict value wins.
• Verify that meta at line 58 (from get_node_meta) is indeed populated before this line executes (it is — line 58 vs line 91), so no ordering issue.
• Test with a dbt Fusion project using config(meta={'override_primary_test_model_id': 'model.pkg.name'}) to confirm the value is picked up correctly.

Notes

• Link to Devin run
• Requested by: @haritamar

Summary by CodeRabbit

• Bug Fixes
  • Enhanced configuration resolution for primary test model identification by adding metadata as a fallback source when the primary configuration is unavailable.

[devin-ai-integration]

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👋 @devin-ai-integration[bot]
Thank you for raising your pull request.
Please make sure to add tests and document all user-facing changes.
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📝 Walkthrough

Walkthrough

The pull request adds fallback logic to read override_primary_test_model_id from metadata when the config value is unavailable, enabling compatibility with dbt Fusion which restricts arbitrary keys in config blocks.

Changes

Cohort / File(s)	Summary
Fallback Logic for Override Primary Test Model ID macros/edr/dbt_artifacts/upload_dbt_tests.sql	Modified variable assignment to check both config_dict and meta sources for override_primary_test_model_id, using the config value if present or falling back to meta as a secondary source.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 A little hop through config and meta too,
Now Fusion plays nice with the overrides we do,
One line of fallback, a logical dance,
Giving the test models their rightful chance! ✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: adding Fusion compatibility by supporting override_primary_test_model_id in meta.
Linked Issues check	✅ Passed	The code change implements the required fallback behavior: attempting config_dict first, then falling back to meta when absent, directly addressing issue #929.
Out of Scope Changes check	✅ Passed	The change is minimal and focused: only modifying one line to add meta fallback support for override_primary_test_model_id as specified in issue #929.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch devin/1771416772-fusion-compatible-override-primary-test-model-id

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