textual-snapshot-testing

Visual regression testing using pytest-textual-snapshot to capture and compare SVG screenshots.

The snapcompare fixture is automatically available after installation.

When tests fail, pytest generates HTML report with visual diff:

Visual regression testing for Textual TUI applications using pytest-textual-snapshot. Captures SVG screenshots and compares across test runs to detect visual regressions. Use when: testing visual appearance, detecting layout regressions, testing responsive designs across terminal sizes, verifying CSS styling effects, or setting up CI/CD for visual testing. Covers snap_compare fixture, run_before callbacks, snapshot management, flaky test handling (animations, cursors, timestamps), and CI integration. Source: dawiddutoit/custom-claude.