fix: report actual synced connection count in connector_sync (#1547)

[hunterxtang]

Fixes #1547
connector_sync reported connections_synced: len(active_connections), but it selects only the first working connection and dispatches a single task, so the count (and the message) were inflated whenever multiple connections were active. Changed to len(task_ids) and fixed the matching message to singular.
Added test_connector_sync_reports_one_connection_with_multiple_active: with 3 active connections it asserts connections_synced == 1. Verified it fails on main (reports 3) and passes with the fix.

Summary by CodeRabbit

• Bug Fixes

  • Adjusted connector sync response so the reported number of synced connections is derived from returned task IDs and the human-readable message reflects a single started connection when applicable.

• Tests

  • Added unit tests validating connector sync response content, HTTP status, message wording for singular/plural cases, and task ID reporting.

[coderabbitai]

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Reviewing files that changed from the base of the PR and between 5eae082 and 8512d02.

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• tests/unit/api/test_connector_sync_response.py

💤 Files with no reviewable changes (1)

• tests/unit/api/test_connector_sync_response.py

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Walkthrough

The connector_sync endpoint now sets connections_synced from the number of dispatched tasks (len(task_ids)) and uses a singular message when appropriate. A new async unit test verifies the response fields, message text, and that only one sync task was dispatched and awaited.

Changes

Connector sync response count

Layer / File(s)	Summary
Connector sync response count fix src/api/connectors.py, tests/unit/api/test_connector_sync_response.py	Updates connector_sync to compute connections_synced from len(task_ids) instead of len(active_connections), adjusts the success message to report a single {connector_type} connection when applicable, and adds a unit test validating the status code, JSON fields (connections_synced, message, task_ids), and that sync_specific_files is awaited exactly once.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Suggested labels

bug, tests

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 40.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 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: fixing the reporting of the synced connection count from len(active_connections) to len(task_ids) in connector_sync.
Linked Issues check	✅ Passed	The PR changes fully address the objective in issue #1547: connector_sync now reports connections_synced as len(task_ids) instead of len(active_connections), with test coverage verifying the fix.
Out of Scope Changes check	✅ Passed	All changes are directly within scope: modifications to connector_sync response reporting and addition of test coverage for the fix, with no unrelated alterations.

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Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@tests/unit/api/test_connector_sync_response.py`:
- Line 109: Remove the stray signature comment "# Made with Bob" from the test
file; locate the comment in tests/unit/api/test_connector_sync_response.py
(search for the exact string "# Made with Bob") and delete that line so the file
contains only test code and no personal/signature comments.

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Fix all unresolved CodeRabbit comments on this PR:

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Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

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Run ID: 4f582f41-8469-44a9-9926-c634d14a82f2

📥 Commits

Reviewing files that changed from the base of the PR and between 03f1c91 and 5eae082.

📒 Files selected for processing (2)

• src/api/connectors.py
• tests/unit/api/test_connector_sync_response.py