Jacoco

JaCoCo 是一个 Java 代码覆盖率工具和字节码插桩工具，用于衡量测试过程中执行了源代码的哪些部分。它既可以作为运行时代理来实时监控应用执行，也可以作为离线字节码插桩库，从而在受限的运行时环境中捕获执行数据。

该项目的特点是提供动态和静态两种插桩路径来跟踪执行情况。它包含一个用于实时监控的运行时代理，并具备在执行前修改已编译类文件的能力。此外，它还支持在不中断活动应用的情况下，通过远程网络连接从运行中的进程检索执行指标。

该系统可计算指令、分支、行、方法和类级别的定量覆盖率指标，以及圈复杂度。它提供了合并多次测试运行数据、在 CI/CD 质量门禁中强制执行覆盖率阈值，以及生成将执行的字节码映射回源代码的报告等功能。此外，它还支持将结果直接显示在代码编辑器中的可视化集成。

该工具与构建自动化系统和命令行接口集成，以实现数据收集和报告生成的自动化。

Features

Code Coverage Analysis - Measures the extent to which Java source code is executed by a test suite to identify untested logic.
Java Agents - Functions as a Java agent that monitors application execution on the fly to record coverage data.
Code Quality Analysis Tools - Calculates cyclomatic complexity and enforces coverage thresholds to maintain software quality standards.
Execution Tracking - Records which specific bytecode instructions and branches are executed during a test run using boolean markers.
Bytecode-to-Source Mapping - Links executed bytecode instructions back to original source code lines and methods for report generation.
Bytecode Instrumentation Agents - Implements bytecode instrumentation agents to inject tracking probes into compiled Java classes at runtime.
Class Definition Hashing - Assigns a unique hash to raw class definitions to distinguish between different versions of the same class.
Offline Bytecode Instrumentation - Modifies compiled class files before execution to enable coverage tracking in environments that prohibit runtime agents.
Runtime Bytecode Instrumentation - Injects tracking logic into class files during execution via a Java agent to monitor runtime behavior.
Branch Coverage Tracking - Analyzes decision statements to determine the number of executed or missed paths in the code.
Java Instrumentation Frameworks - Provides a framework for injecting tracking probes into Java class files via runtime or offline instrumentation.
Runtime Bytecode Instrumentation - Injects tracking probes into class files at runtime using a Java agent to monitor execution paths.
Execution Coverage Metrics - Tracks whether at least one instruction in a method or one method in a class has been executed.
Class Version Hashes - Assigns unique identifiers to class definitions to ensure execution data matches the correct version of the source code.
Code Coverage Tools - Instruments bytecode to measure the percentage of Java source code executed during automated tests.
Threshold Enforcements - Implements validation mechanisms that fail the build process if coverage percentages fall below a predefined minimum.
Instrumentation Filters - Provides rules to include or exclude specific packages and classes from instrumentation to limit data collection.
Runtime Metrics Extraction - Enables retrieval of execution metrics from running processes via remote network connections without interrupting the application.
Large-Scale Codebase Analysis - Uses streaming patterns and depth-first traversals to analyze large projects with thousands of classes while maintaining low memory overhead.
Build Tool Integrations - Provides native extensions and tasks to integrate coverage data collection into build automation systems.
Remote Execution Data Extraction - Transmits execution metrics from a running process to an external collector via a dedicated network protocol.
Cyclomatic Complexity Analyzers - Computes the minimum number of paths through a method to determine the test cases required for full coverage.
Coverage Threshold Validation - Enforces minimum code coverage thresholds during the build process to ensure software meets quality standards.
Quality Gates - Integrates with CI/CD pipelines to block code progression if specific coverage quality gates are not met.
Visual Coverage Mapping - Displays execution data directly within code editors using visual highlights and gutter decorations.
Report Generators - Transforms raw binary execution data into human-readable reports to identify untested sections of the application.
Code Coverage Reportings - Compares execution metrics against source code to generate reports identifying untested lines and branches.
测试框架 - Java code coverage library.

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Name: jacoco/jacoco
Author: jacoco

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Jacoco

该工具与构建自动化系统和命令行接口集成，以实现数据收集和报告生成的自动化。

Features

Code Coverage Analysis - Measures the extent to which Java source code is executed by a test suite to identify untested logic.
Java Agents - Functions as a Java agent that monitors application execution on the fly to record coverage data.
Code Quality Analysis Tools - Calculates cyclomatic complexity and enforces coverage thresholds to maintain software quality standards.
Execution Tracking - Records which specific bytecode instructions and branches are executed during a test run using boolean markers.
Bytecode-to-Source Mapping - Links executed bytecode instructions back to original source code lines and methods for report generation.
Bytecode Instrumentation Agents - Implements bytecode instrumentation agents to inject tracking probes into compiled Java classes at runtime.
Class Definition Hashing - Assigns a unique hash to raw class definitions to distinguish between different versions of the same class.
Offline Bytecode Instrumentation - Modifies compiled class files before execution to enable coverage tracking in environments that prohibit runtime agents.
Runtime Bytecode Instrumentation - Injects tracking logic into class files during execution via a Java agent to monitor runtime behavior.
Branch Coverage Tracking - Analyzes decision statements to determine the number of executed or missed paths in the code.
Java Instrumentation Frameworks - Provides a framework for injecting tracking probes into Java class files via runtime or offline instrumentation.
Runtime Bytecode Instrumentation - Injects tracking probes into class files at runtime using a Java agent to monitor execution paths.
Execution Coverage Metrics - Tracks whether at least one instruction in a method or one method in a class has been executed.
Class Version Hashes - Assigns unique identifiers to class definitions to ensure execution data matches the correct version of the source code.
Code Coverage Tools - Instruments bytecode to measure the percentage of Java source code executed during automated tests.
Threshold Enforcements - Implements validation mechanisms that fail the build process if coverage percentages fall below a predefined minimum.
Instrumentation Filters - Provides rules to include or exclude specific packages and classes from instrumentation to limit data collection.
Runtime Metrics Extraction - Enables retrieval of execution metrics from running processes via remote network connections without interrupting the application.
Large-Scale Codebase Analysis - Uses streaming patterns and depth-first traversals to analyze large projects with thousands of classes while maintaining low memory overhead.
Build Tool Integrations - Provides native extensions and tasks to integrate coverage data collection into build automation systems.
Remote Execution Data Extraction - Transmits execution metrics from a running process to an external collector via a dedicated network protocol.
Cyclomatic Complexity Analyzers - Computes the minimum number of paths through a method to determine the test cases required for full coverage.
Coverage Threshold Validation - Enforces minimum code coverage thresholds during the build process to ensure software meets quality standards.
Quality Gates - Integrates with CI/CD pipelines to block code progression if specific coverage quality gates are not met.
Visual Coverage Mapping - Displays execution data directly within code editors using visual highlights and gutter decorations.
Report Generators - Transforms raw binary execution data into human-readable reports to identify untested sections of the application.
Code Coverage Reportings - Compares execution metrics against source code to generate reports identifying untested lines and branches.
测试框架 - Java code coverage library.

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查看 Jacoco 的所有 30 个替代方案

常见问题解答

jacoco/jacoco 是做什么的？

jacoco/jacoco 的主要功能有哪些？

jacoco/jacoco 的主要功能包括：Code Coverage Analysis, Java Agents, Code Quality Analysis Tools, Execution Tracking, Bytecode-to-Source Mapping, Bytecode Instrumentation Agents, Class Definition Hashing, Offline Bytecode Instrumentation。

jacoco/jacoco 有哪些开源替代品？

jacoco/jacoco 的开源替代品包括： colszowka/simplecov — SimpleCov is a Ruby code coverage tool and analysis engine used to track which lines, branches, and methods of code… gotwarlost/istanbul — Istanbul is a JavaScript code coverage tool and instrumentation engine that measures the execution of statements,… istanbuljs/nyc — nyc is a JavaScript code coverage tool and command-line interface that instruments source files to track the execution… oldmanpushcart/greys-anatomy — This project is a Java runtime diagnostic tool and bytecode instrumentation framework. It provides a remote… jbachorik/btrace — btrace is a Java dynamic tracing tool and instrumentation framework designed for real-time diagnostics. It enables the… sebastianbergmann/php-code-coverage — php-code-coverage is a PHP library and analysis tool designed to track runtime execution and determine which parts of…