test: add coverage for _haversine and _check_input_parameters

[TheGreatAlgo]

Adds unit tests for two previously-untested geotemporal utilities in geotemporal_data.py:

• _haversine — single-point and vectorized (array) distance calculations
• _check_input_parameters — invalid time-period and aggregation-method validation

These tests are salvaged from #4, which was written against the pre-restructure dclimate_zarr_client package. The bulk of that PR targeted the old IPNS/STAC catalog traversal code that has since been removed/rewritten, but these two utilities still exist and were not covered by the current suite.

4 passed in 0.35s

Summary by CodeRabbit

• Tests
  • Added coverage for geotemporal utility calculations, including single-point and vectorized distance results.
  • Added validation checks to confirm unsupported time periods and aggregation methods raise the expected errors.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 0f3b7a9b-7da0-4f38-9ff4-bbf107f581d4

📥 Commits

Reviewing files that changed from the base of the PR and between 1369acd and 4993876.

📒 Files selected for processing (1)

• tests/test_geotemporal_utils.py

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📝 Walkthrough

Walkthrough

Adds a new test module for geotemporal utilities, covering the _haversine function with scalar and array inputs, and _check_input_parameters for invalid time_period and agg_method values, verifying expected exceptions are raised.

Changes

Geotemporal Utility Tests

Layer / File(s)	Summary
Haversine distance tests tests/test_geotemporal_utils.py	Tests validate _haversine against expected approximate kilometer distances for both scalar and NumPy array coordinate inputs.
Input parameter validation tests tests/test_geotemporal_utils.py	Tests confirm _check_input_parameters raises InvalidTimePeriodError and InvalidAggregationMethodError for unsupported values.

Estimated code review effort: 1 (Trivial) | ~5 minutes

🚥 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 summarizes the main change: added test coverage for _haversine and _check_input_parameters.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch test/geotemporal-utils-coverage

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