Test-driven development skill for writing unit tests, generating test fixtures and mocks, analyzing coverage gaps, and guiding red-green-refactor workflows a...
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Test-driven development skill for generating tests, analyzing coverage, and guiding red-green-refactor workflows across Jest, Pytest, JUnit, and Vitest.
test_generator.pynpm test -- --coveragecoverage_analyzer.pytdd_workflow.py --phase redtdd_workflow.py --phase greenInput source function (
):math_utils.py
def divide(a: float, b: float) -> float: if b == 0: raise ValueError("Cannot divide by zero") return a / b
Command:
python scripts/test_generator.py --input math_utils.py --framework pytest
Generated test output (
):test_math_utils.py
import pytest from math_utils import divideclass TestDivide: def test_divide_positive_numbers(self): assert divide(10, 2) == 5.0
def test_divide_negative_numerator(self): assert divide(-10, 2) == -5.0 def test_divide_float_result(self): assert divide(1, 3) == pytest.approx(0.333, rel=1e-3) def test_divide_by_zero_raises_value_error(self): with pytest.raises(ValueError, match="Cannot divide by zero"): divide(10, 0) def test_divide_zero_numerator(self): assert divide(0, 5) == 0.0
Command:
python scripts/coverage_analyzer.py --report lcov.info --threshold 80
Sample output:
Coverage Report — Overall: 63% (threshold: 80%)P0 — Critical gaps (uncovered error paths): auth/login.py:42-58 handle_expired_token() 0% covered payments/process.py:91-110 handle_payment_failure() 0% covered
P1 — High-value gaps (core logic branches): users/service.py:77 update_profile() — else branch 0% covered orders/cart.py:134 apply_discount() — zero-qty guard 0% covered
P2 — Low-risk gaps (utility / helper functions): utils/formatting.py:12 format_currency() 0% covered
Recommended: Generate tests for P0 items first to reach 80% threshold.
| Tool | Purpose | Usage |
|---|---|---|
| Generate test cases from code/requirements | |
| Parse and analyze coverage reports | |
| Guide red-green-refactor cycles | |
| Generate test data and mocks | |
Additional scripts:
framework_adapter.pymetrics_calculator.pyformat_detector.pyoutput_formatter.pyFor Test Generation:
For Coverage Analysis:
For TDD Workflow:
| Scope | Details |
|---|---|
| Unit test focus | Integration and E2E tests require different patterns |
| Static analysis | Cannot execute tests or measure runtime behavior |
| Language support | Best for TypeScript, JavaScript, Python, Java |
| Report formats | LCOV, JSON, XML only; other formats need conversion |
| Generated tests | Provide scaffolding; require human review for complex logic |
When to use other tools:
No automatic installation available. Please visit the source repository for installation instructions.
View Installation Instructions
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