unit-test-generator

根据源代码自动生成单元测试,支持多种语言和测试框架。

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Install skill "unit-test-generator" with this command: npx skills add jackyst0/awesome-agent-skills/jackyst0-awesome-agent-skills-unit-test-generator

Unit Test Generator

根据源代码自动生成单元测试,支持多种语言和测试框架。

Automatically generate unit tests based on source code, supporting multiple languages and testing frameworks.

When to Use

当用户请求以下操作时使用此 skill:

  • 生成单元测试 / Generate unit tests

  • 为函数/类编写测试 / Write tests for functions/classes

  • 创建测试用例 / Create test cases

  • 提高代码覆盖率 / Improve code coverage

Instructions

分析步骤 / Analysis Steps

  • 识别代码 - 确定编程语言和代码结构

  • 分析功能 - 理解函数/方法的输入、输出和行为

  • 确定边界 - 识别边界条件和边缘情况

  • 选择框架 - 根据语言选择合适的测试框架

  • 生成测试 - 编写全面的测试用例

支持的语言和框架 / Supported Languages

语言 测试框架

Python pytest, unittest

JavaScript/TypeScript Jest, Mocha, Vitest

Java JUnit, TestNG

Go testing (built-in)

Rust cargo test (built-in)

测试类型 / Test Types

  • 正常路径测试 - 验证预期行为

  • 边界条件测试 - 测试边界值

  • 异常处理测试 - 验证错误处理

  • 空值/空输入测试 - 处理空值情况

输出格式 / Output Format

使用 templates/test-report.md 模板格式化输出。

Use the templates/test-report.md template to format output.

单元测试生成报告 / Unit Test Generation Report

分析概述 / Analysis Summary

[代码分析总结]

生成的测试 / Generated Tests

[测试代码]

测试覆盖说明 / Coverage Notes

  • 覆盖的场景
  • 建议补充的测试

Examples

输入 / Input

def divide(a: float, b: float) -> float: if b == 0: raise ValueError("Cannot divide by zero") return a / b

输出 / Output

单元测试生成报告

分析概述

divide 函数执行除法运算,包含除零检查。需要测试正常除法、除零异常、边界值等情况。

生成的测试

import pytest from your_module import divide

class TestDivide: """Tests for the divide function."""

def test_divide_positive_numbers(self):
    """Test division of positive numbers."""
    assert divide(10, 2) == 5.0
    assert divide(7, 2) == 3.5

def test_divide_negative_numbers(self):
    """Test division with negative numbers."""
    assert divide(-10, 2) == -5.0
    assert divide(10, -2) == -5.0
    assert divide(-10, -2) == 5.0

def test_divide_by_zero_raises_error(self):
    """Test that dividing by zero raises ValueError."""
    with pytest.raises(ValueError, match="Cannot divide by zero"):
        divide(10, 0)

def test_divide_zero_numerator(self):
    """Test division when numerator is zero."""
    assert divide(0, 5) == 0.0

def test_divide_float_precision(self):
    """Test division with floating point numbers."""
    assert divide(1, 3) == pytest.approx(0.333333, rel=1e-5)

测试覆盖说明

  • ✅ 正常正数除法

  • ✅ 负数除法

  • ✅ 除零异常

  • ✅ 分子为零

  • ✅ 浮点精度

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