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"""
Test Suite for UMAP to ensure things are working as expected.
The test suite comprises multiple testing modules,
including multiple test cases related to a specific
set of UMAP features under test.
Backend
-------
pytest is the reference backend for testing environment and execution,
also integrating with pre-existent nose-based tests
Shared Testing code
-------------------
Whenever needed, each module includes a set of
_utility_ functions that specify shared (and repeated)
testing operations.
Fixtures
--------
All data dependency has been implemented
as test fixtures (preferred to shared global variables).
All the fixtures shared by multiple test cases
are defined in the `conftest.py` module.
Fixtures allow the execution of each test module in isolation, as well
as within the whole test suite.
Modules in Tests (to keep up to date)
-------------------------------------
- conftest: pytrest fixtures
- test_plot: basic tests for umap.plot
- test_umap_df_validation_params:
Tests on parameters validation for DataFrameUMAP
- test_umap_metrics:
Tests for UMAP metrics - spatial, binary, and sparse
- test_umap_nn:
Tests for NearestNeighbours
- test_umap_on_iris:
Tests for UMAP on Iris Dataset
- test_umap_ops:
Tests for general UMAP ops (e.g. clusterability, transform stability)
- test_umap_repeated_data:
UMAP tests on repeated data (sparse|dense; spatial|binary)
- test_umap_trustworthiness:
Tests on UMAP Trustworthiness
- test_umap_validation_params:
Tests for fit parameters validation
"""
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