version 1.20.7
[INFO] Available mutators : EXPERIMENTAL_ARGUMENT_PROPAGATION,FALSE_RETURNS,TRUE_RETURNS,CONDITIONALS_BOUNDARY,CONSTRUCTOR_CALLS,EMPTY_RETURNS,INCREMENTS,INLINE_CONSTS,INV
ERT_NEGS,MATH,NEGATE_CONDITIONALS,NON_VOID_METHOD_CALLS,NULL_RETURNS,PRIMITIVE_RETURNS,REMOVE_CONDITIONALS_EQUAL_IF,REMOVE_CONDITIONALS_EQUAL_ELSE,REMOVE_CONDITIONALS_ORDE
R_IF,REMOVE_CONDITIONALS_ORDER_ELSE,VOID_METHOD_CALLS,EXPERIMENTAL_BIG_DECIMAL,EXPERIMENTAL_BIG_INTEGER,EXPERIMENTAL_MEMBER_VARIABLE,EXPERIMENTAL_NAKED_RECEIVER,REMOVE_INCREMENTS,EXPERIMENTAL_SWITCH

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>org.example</groupId>
  <artifactId>Test3</artifactId>
  <version>1.0-SNAPSHOT</version>

  <properties>
    <!-- 统一指定项目编码为 UTF-8 -->
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <!-- 统一指定项目报告编码（可选，避免报告乱码） -->
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <maven.compiler.source>11</maven.compiler.source>
    <maven.compiler.target>11</maven.compiler.target>
  </properties>

  <dependencies>
    <!-- JUnit 5 核心依赖 -->
    <dependency>
      <groupId>org.junit.jupiter</groupId>
      <artifactId>junit-jupiter-api</artifactId>
      <version>5.9.2</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>org.junit.jupiter</groupId>
      <artifactId>junit-jupiter-engine</artifactId>
      <version>5.9.2</version>
      <scope>test</scope>
    </dependency>
    <!-- 参数化测试依赖 -->
    <dependency>
      <groupId>org.junit.jupiter</groupId>
      <artifactId>junit-jupiter-params</artifactId>
      <version>5.9.2</version>
      <scope>test</scope>
    </dependency>

    <!-- Mockito 核心依赖 -->
    <dependency>
      <groupId>org.mockito</groupId>
      <artifactId>mockito-core</artifactId>
      <version>4.11.0</version>
      <scope>test</scope>
    </dependency>
    <!-- Mockito 适配 JUnit 5 的扩展 -->
    <dependency>
      <groupId>org.mockito</groupId>
      <artifactId>mockito-junit-jupiter</artifactId>
      <version>4.11.0</version>
      <scope>test</scope>
    </dependency>
    <!-- 可选：静态方法Mock依赖（如需Mock静态工具类） -->
    <dependency>
      <groupId>org.mockito</groupId>
      <artifactId>mockito-inline</artifactId>
      <version>4.11.0</version>
      <scope>test</scope>
    </dependency>

    <!-- pitest适配JUnit5依赖 必要 -->
    <dependency>
      <groupId>org.pitest</groupId>
      <artifactId>pitest-junit5-plugin</artifactId>
      <version>1.2.0</version>
    </dependency>
  </dependencies>

  <build>
    <plugins>
      <!-- 执行快速、独立的单元测试（失败会直接中断构建）-->
      <!--<plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-surefire-plugin</artifactId>
        <version>3.1.2</version>
      </plugin>-->
      <!-- 专门用于执行集成测试（Integration Tests） -->
      <!--<plugin>
          <artifactId>maven-failsafe-plugin</artifactId>
          <version>3.1.2</version>
      </plugin>-->

      <!-- 1. JaCoCo 核心插件（生成覆盖率报告） -->
      <plugin>
        <groupId>org.jacoco</groupId>
        <artifactId>jacoco-maven-plugin</artifactId>
        <version>0.8.12</version> <!-- 最新稳定版 -->
        <configuration>
          <excludes>
            <!-- 排除配置类 -->
            <exclude>com/multisig/config/**/*</exclude>
            <!-- 排除工具类常量 -->
            <exclude>com/multisig/constants/**/*</exclude>
            <!-- 排除测试专用代码 -->
            <exclude>**/*Test*.class</exclude>
          </excludes>
        </configuration>
        <executions>
          <!-- 执行测试时收集覆盖率数据 -->
          <execution>
            <id>jacoco-prepare-agent</id>
            <goals>
              <goal>prepare-agent</goal>
            </goals>
          </execution>
          <!-- 测试完成后生成覆盖率报告 -->
          <execution>
            <id>jacoco-report</id>
            <phase>test</phase> <!-- 绑定到 mvn test 阶段 -->
            <goals>
              <goal>report</goal>
            </goals>
          </execution>
          <!-- 可选：强制执行覆盖率规则（如行覆盖率≥80%） -->
          <execution>
            <id>jacoco-check</id>
            <goals>
              <goal>check</goal>
            </goals>
            <configuration>
              <rules>
                <!-- 对所有代码的行覆盖率要求 ≥80% -->
                <rule>
                  <element>BUNDLE</element>
                  <limits>
                    <limit>
                      <counter>LINE</counter>
                      <value>COVEREDRATIO</value>
                      <minimum>0.8</minimum> <!-- 80% 行覆盖 -->
                    </limit>
                    <!-- 分支覆盖率 ≥70% -->
                    <limit>
                      <counter>BRANCH</counter>
                      <value>COVEREDRATIO</value>
                      <minimum>0.7</minimum>
                    </limit>
                  </limits>
                </rule>
              </rules>
            </configuration>
          </execution>
        </executions>
      </plugin>

      <!-- 2. 确保 Maven Surefire 插件适配 JUnit 5 -->
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-surefire-plugin</artifactId>
        <version>3.1.2</version>
        <configuration>
          <includes>
            <include>**/*Test.java</include> <!-- 执行所有测试类 -->
          </includes>
        </configuration>
      </plugin>

      <!-- PITest 核心插件（变异测试） -->
      <plugin>
        <groupId>org.pitest</groupId>
        <artifactId>pitest-maven</artifactId>
        <version>1.20.7</version> <!-- 最新稳定版 -->
        <configuration>
          <!-- 1. 适配 JUnit 5（必须） -->
          <testPlugin>junit5</testPlugin> <!-- 使用 JUnit 5 时必须指定 -->

          <!-- 2. 配置测试范围（可选） -->
          <targetClasses>
            <param>org.example.*</param> <!-- 只测试多签服务包 -->
          </targetClasses>
          <targetTests>
            <param>org.example.*Test</param> <!-- 只执行多签测试类 -->
          </targetTests>

          <!-- 3. 排除无需变异的代码（可选，如配置类） -->
          <excludedClasses>
            <param>org.example.config.*</param>
            <param>org.example.constants.*</param>
          </excludedClasses>

          <!-- 4. 配置变异操作（可选，默认全开启） -->
          <mutators>
            <mutator>CONDITIONALS_BOUNDARY</mutator> <!-- 条件边界修改 -->
            <mutator>MATH</mutator> <!-- 算术操作符修改 -->
            <mutator>NEGATE_CONDITIONALS</mutator> <!-- 逻辑操作符修改 -->
          </mutators>

          <!-- 5.性能优化（JDK 11 多线程加速） -->
          <threads>4</threads> <!-- 按CPU核心数配置，如4/8 -->
          <timeoutFactor>1.5</timeoutFactor> <!-- 超时因子（缩短超时） -->
          <skipFailingTests>true</skipFailingTests> <!-- 跳过失败的测试 -->

          <!-- 6.报告配置（生成HTML+XML） -->
          <outputFormats>
            <format>HTML</format>
            <format>XML</format>
          </outputFormats>
        </configuration>

      </plugin>
    </plugins>
  </build>


</project>

package org.example;


public class MultisigService {
    private int threshold = 2; // 多签门限

    // 核心方法：判断签名数是否满足门限
    public boolean isSignatureEnough(int signatureCount) {
        // 核心判断（易出错点）
        if (signatureCount > threshold) {
            return true;
        } else {
            return false;
        }
    }

    // 核心方法：计算交易手续费（算术操作）
    public long calculateFee(long gasPrice, long gasLimit) {
        return gasPrice * gasLimit; // 算术操作（易出错）
    }
}

package org.example;

import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.*;

class MultisigServiceTest {
    private MultisigService service = new MultisigService();

    // 只测了 signatureCount > threshold 的场景（true分支）
    @Test
    void testIsSignatureEnough_Enough() {
        assertTrue(service.isSignatureEnough(3));
    }

    // 只测了正常算术计算，未测边界
    @Test
    void testCalculateFee() {
        assertEquals(2100000, service.calculateFee(100, 21000));
    }
}

// 补充测试：覆盖 signatureCount < threshold 的场景（false分支）
@Test
void testIsSignatureEnough_NotEnough() {
    assertFalse(service.isSignatureEnough(1)); // 测false分支
}

<configuration>
  <excludedClasses>
    <param>com.multisig.config.*</param> <!-- 排除配置类 -->
    <param>com.multisig.constants.*</param> <!-- 排除常量类 -->
    <param>com.multisig.utils.*</param> <!-- 排除工具类 -->
  </excludedClasses>
</configuration>

<configuration>
  <targetClasses>
    <param>com.multisig.MultisigService</param>
    <param>com.multisig.TimelockService</param>
  </targetClasses>
</configuration>

<configuration>
  <mutators>
    <mutator>CONDITIONALS_BOUNDARY</mutator> <!-- 条件边界（门限判断） -->
    <mutator>ARITHMETIC</mutator> <!-- 算术操作（手续费计算） -->
    <mutator>RETURN_VALS</mutator> <!-- 返回值修改（RPC结果） -->
  </mutators>
</configuration>

<configuration>
  <threads>4</threads> <!-- 多线程执行（CPU核心数） -->
  <timeoutFactor>1.5</timeoutFactor> <!-- 超时因子（缩短超时时间） -->
  <skipFailingTests>true</skipFailingTests> <!-- 跳过失败的测试 -->
</configuration>