Replace np.random.randn/rand/seed with np.random.default_rng(7) across
all 93 source modules, tests, and milestones for reproducible, isolated
random state.
- Move imports to module level in all *_core.py test files (16 files)
- Remove try/except/skip patterns from integration tests
- Remove @pytest.mark.skip decorators from gradient flow tests
- Convert environment validation skips to warnings for optional checks
- Change milestone tests from skip to fail when scripts missing
Tests now either pass or fail - no silent skipping that hides issues.
This ensures the test suite provides accurate feedback about what works.
Test fixes:
- test_dataloader_integration.py: Fix import path (tinytorch.data → tinytorch.core)
- integration_mnist_test.py: Fix Linear import (was aliased but used wrong name)
- test_module_05_dense.py: Fix Dense vs Linear usage (was using wrong variable name)
Milestone fix:
- 01_vaswani_attention.py: Fix indentation in train_epoch function
Vijay Janapa Reddi