Add tests for previously uncovered utility, dataset, and metadatable …

[jenshnielsen]

…modules

Add 128 new tests across 12 new test files targeting modules that previously had 0% or very low test coverage (excluding instrument_drivers).

New test files:

• tests/utils/test_types.py: numpy type tuple definitions and composition
• tests/utils/test_abstractmethod.py: qcodes_abstractmethod decorator
• tests/utils/test_deprecate.py: QCoDeSDeprecationWarning class
• tests/utils/test_deep_update_utils.py: recursive dict merging
• tests/utils/test_path_helpers.py: QCoDeS path resolution utilities
• tests/utils/test_numpy_utils.py: ragged array conversion
• tests/dataset/test_snapshot_utils.py: dataset snapshot diffing
• tests/dataset/test_json_exporter.py: JSON linear/heatmap export
• tests/dataset/test_export_config.py: export config get/set functions
• tests/dataset/test_rundescribertypes.py: TypedDict versioned schemas
• tests/dataset/test_sqlite_settings_extended.py: SQLite settings/limits
• tests/test_metadatable_base.py: Metadatable and MetadatableWithName

Coverage: from 69.97% to 70.12% +0.15%

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 70.12%. Comparing base (3090bab) to head (6f67291).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7961      +/-   ##
==========================================
+ Coverage   69.97%   70.12%   +0.15%     
==========================================
  Files         333      333              
  Lines       32245    32245              
==========================================
+ Hits        22562    22613      +51     
+ Misses       9683     9632      -51     

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[Copilot]

Pull request overview

Adds new pytest coverage for several low-/uncovered QCoDeS utility, dataset, and metadatable modules, primarily validating type aliases, small helpers, and export/snapshot utilities.

Changes:

• Introduces new unit tests for qcodes.utils helpers (types, numpy/path utilities, deep update, abstractmethod, deprecate).
• Adds dataset-focused tests (snapshot diffing, JSON exporter, export config, RunDescriber TypedDict schemas, SQLite settings).
• Adds metadatable base tests to cover previously unexercised branches.

Reviewed changes

Copilot reviewed 12 out of 12 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
tests/utils/test_types.py	Tests NumPy type tuple definitions/composition in qcodes.utils.types.
tests/utils/test_abstractmethod.py	Tests qcodes_abstractmethod decorator behavior.
tests/utils/test_deprecate.py	Tests QCoDeSDeprecationWarning behavior and visibility.
tests/utils/test_deep_update_utils.py	Tests recursive dict merge semantics of deep_update.
tests/utils/test_path_helpers.py	Tests QCoDeS path helper utilities and env var behavior.
tests/utils/test_numpy_utils.py	Tests ragged/uniform array conversion helper.
tests/dataset/test_snapshot_utils.py	Tests dataset snapshot diffing (diff_param_snapshots).
tests/dataset/test_json_exporter.py	Tests JSON linear/heatmap export utilities and templates.
tests/dataset/test_export_config.py	Tests export config get/set helpers and enum mapping.
tests/dataset/test_rundescribertypes.py	Tests TypedDict schemas/unions for RunDescriber versioning.
tests/dataset/test_sqlite_settings_extended.py	Adds broader coverage for SQLite settings/limits helpers.
tests/test_metadatable_base.py	Adds coverage for Metadatable/MetadatableWithName behavior.