colszowka/simplecov
Simplecov
SimpleCov 是一个 Ruby 代码覆盖率工具和分析引擎，用于跟踪测试期间执行的代码行、分支和方法。它作为一个覆盖率阈值强制执行器和测试套件聚合器，记录执行数据以识别应用中未测试的区域。
该工具通过将来自并行工作进程和子进程的覆盖率结果合并为单个统一报告的能力而脱颖而出。它支持基准比较以检测覆盖率回归，并可以收集通过动态评估方法（如模板引擎中使用的方法）执行的代码数据。
其更广泛的能力包括多格式报告生成、源文件分组以及使用正则表达式进行文件过滤。该系统还提供了一个用于显示统计信息和列出未覆盖文件的命令行界面。
Features
- Execution Tracking - Tracks which lines of Ruby code execute during tests to identify untested areas of an application.
- Code Coverage Analysis - Tracks which lines of Ruby code execute during tests to identify untested areas and ensure software quality.
- Subprocess Aggregation - Observes and merges coverage data gathered from forked or spawned child processes into a unified report.
- Threshold Enforcements - Fails test suite execution if the Ruby code coverage percentage falls below a defined minimum.
- Distributed Coverage Aggregation - Merges fragmented coverage data from parallel worker processes and multiple test suites into a single report.
- Coverage Data Aggregators - Aggregates fragmented coverage reports from parallel worker processes and subprocesses into a single unified dataset.
- Branch Execution Metrics - Records whether each branch of a conditional was exercised rather than just tracking if the line was hit.
- Branch Coverage Tracking - Measures whether every branch of a conditional was exercised to identify gaps in test logic.
- Code Coverage Tools - Provides a comprehensive tool for tracking which lines of Ruby code execute during tests.
- Test Report Aggregators - Combines coverage data from multiple test suites or parallel worker processes into a single unified report.
- Ruby Coverage API Integrations - Wraps the native Ruby coverage library to track line, branch, and method execution across the application.
- Coverage Report Formats - Transforms raw coverage statistics into various outputs including HTML web pages and machine-readable files.
- Automated Quality Assurance Suites - Enforces minimum coverage thresholds and compares baselines to prevent regressions in the codebase.
- Coverage Tracking for Evaluated Code - Captures coverage data for code executed via eval or templating engines that bypasses standard file loading.
- Method Execution Tracking - Measures whether specific method definitions were called during the test run.
- Baseline Comparisons - Calculates the percentage difference between coverage reports to detect regressions in code testing.
- Coverage Exclusions - Excludes specific files, directories, or patterns from reports using regular expressions and custom logic.
- Evaluated Code Analysis - Gathers coverage data for code executed via dynamic evaluation methods, specifically for templating engines.
- Evaluated Code Coverage - Gathers coverage data for code executed via dynamic evaluation methods, such as those used in templating engines.
- Baseline-Comparison Regression Detections - Provides baseline comparison logic to detect coverage regressions between different test snapshots.
- Code Coverage Reportings - Provides terminal commands to display coverage statistics and list uncovered files.
- Multi-Format Export - Generates coverage results in multiple formats, including browsable web pages and machine-readable data files.
- Code Analysis and Metrics - Tool for tracking and reporting test suite code coverage.
- Ruby Frameworks and Tools - Code coverage analysis for Ruby.
- Testing - Code coverage analysis tool.
