[TST] add schema proptest to python

[jairad26]

Description of changes

Summarize the changes made by this PR.

• Improvements & Bug fixes
  • Adds prop tests to distributed & local chroma for e2e create_collection and get_collection flow to ensure all reconciliation logic for vector index config, and schema index configs for inverted indexes on metadata keys & sparse vector indexes are created with the correct parameters
• New functionality
  • ...

Test plan

How are these changes tested?

• Tests pass locally with pytest for python, yarn test for js, cargo test for rust

Migration plan

Are there any migrations, or any forwards/backwards compatibility changes needed in order to make sure this change deploys reliably?

Observability plan

What is the plan to instrument and monitor this change?

Documentation Changes

Are all docstrings for user-facing APIs updated if required? Do we need to make documentation changes in the docs section?

[github-actions]

Reviewer Checklist

Please leverage this checklist to ensure your code review is thorough before approving

Testing, Bugs, Errors, Logs, Documentation

• Can you think of any use case in which the code does not behave as intended? Have they been tested?
• Can you think of any inputs or external events that could break the code? Is user input validated and safe? Have they been tested?
• If appropriate, are there adequate property based tests?
• If appropriate, are there adequate unit tests?
• Should any logging, debugging, tracing information be added or removed?
• Are error messages user-friendly?
• Have all documentation changes needed been made?
• Have all non-obvious changes been commented?

System Compatibility

• Are there any potential impacts on other parts of the system or backward compatibility?
• Does this change intersect with any items on our roadmap, and if so, is there a plan for fitting them together?

Quality

• Is this code of a unexpectedly high quality (Readability, Modularity, Intuitiveness)

[jairad26]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• [TST] add schema proptest to python #5823 👈 (View in Graphite)
• [CLN] schema: build default with config ef & default_knn_index, remove #document population in defaults #5775
• [BUG] is_default_schema does not do a space check for defaults or #embedding #5787
• main

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[propel-code-bot]

Add property-based tests for schema & vector-index reconciliation logic

Introduces extensive Hypothesis‐driven tests that exercise create_collection / get_collection paths for both local and distributed modes. The new tests randomly generate combinations of collection metadata, configuration blocks (HNSW, SPANN, embedding function, etc.) and user-defined schema objects, then assert that the resulting collection configuration and persisted schema match the expected reconciliation logic. Supporting strategies were expanded to create realistic Schema, VectorIndexConfig, SparseVectorIndexConfig, metadata with HNSW keys, and mutually-exclusive configuration permutations.

Key Changes

• Added chromadb/test/property/test_schema.py (~760 LOC) containing two property tests (test_vector_index_configuration_create_collection, test_schema_create_and_get_collection) plus many helper assertion/util functions.
• Greatly extended chromadb/test/property/strategies.py (+380 LOC): new Hypothesis strategies for vector/sparse index configs, schema generation, metadata/configuration combinations, helper conversions (vector_index_to_dict, non_none_items), and a registered SimpleIpEmbeddingFunction subclass.
• Introduced dataclass CollectionInputCombination for bundling generated inputs and added helper functions to translate index configs to comparable dicts.
• Minor fixups to existing strategy code (added trailing commas, safe casting, updated sampling dictionaries) and small corrections to SPANN config examples.

Affected Areas

• Python test suite
• chromadb/test/property/test_schema.py
• chromadb/test/property/strategies.py

This summary was automatically generated by @propel-code-bot

[blacksmith-sh]

Found 4 test failures on Blacksmith runners:

Test	View Logs
worker/compactor::compaction_manager::tests::test_compaction_manager	View Logs
worker/ execution::functions::statistics::tests::test_k8s_integration_statistics_function	View Logs
worker/execution::orchestration::compact::tests::test_rebuild	View Logs
worker/execution::orchestration::compact::tests::test_rebuild_empty_filepath	View Logs