allure-reports

Overview

Allure Report is "an open-source framework-agnostic test result visualization tool" that "transforms test execution data into clear, interactive HTML reports" (allure-docs). It "supports testing frameworks across JavaScript, Python, Java, C#, PHP, and Ruby" with 30+ adapters (allure-docs).

Allure's two-stage workflow:

1. Tests run with an Allure adapter installed. The adapter writes per-test JSON files into an allure-results/ directory.
2. Allure CLI generates the static HTML site from allure-results/, optionally merging in history from a previous run for trend graphs.