Tests

fix: add fallback imports for direct module execution #5

	name: Tests

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]

	jobs:
	test:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ["3.9", "3.10", "3.11"]

	steps:
	- uses: actions/checkout@v4

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements.txt

	- name: Test basic imports
	run: \|
	python -c "import pandas, numpy, matplotlib, yfinance, scipy, sklearn; print('✅ All basic imports successful!')"

	- name: Test module imports
	run: \|
	cd src
	python -c "import markowitz; print('✅ Markowitz module import successful!')"
	python -c "import risk_parity; print('✅ Risk parity module import successful!')"
	python -c "import monte_carlo; print('✅ Monte Carlo module import successful!')"
	python -c "import black_litterman; print('✅ Black-Litterman module import successful!')"
	python -c "import ml_predictor; print('✅ ML predictor module import successful!')"
	python -c "import hybrid_model; print('✅ Hybrid model module import successful!')"
	python -c "import custom_metrics_opt; print('✅ Custom metrics module import successful!')"
	python -c "import walkforward_backtest; print('✅ Walkforward backtest module import successful!')"
	python -c "import data_utils; print('✅ Data utils module import successful!')"
	python -c "import metrics_utils; print('✅ Metrics utils module import successful!')"

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