assertion-utilities

Centralize Playwright test validations with value-based and DOM-based assertions.

Updated Jan 31, 2026

Search Tags:#testing #Playwright #assertions #soft-assertions #AssertUtils #ExpectUtils

Ready to run

npx skills add https://github.com/AbhiRKeesara/test-automation-skills --skill assertion-utilities

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: assertion-utilities
Source: https://github.com/AbhiRKeesara/test-automation-skills/tree/main/skills/assertion-utilities
Command: npx skills add https://github.com/AbhiRKeesara/test-automation-skills --skill assertion-utilities

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Centralizes and standardizes test validations across Playwright projects, reducing duplication and easing maintenance by providing a unified API for both value-based and DOM-based checks.

Core Features & Use Cases

AssertUtils for value-based validations (strings, numbers, API responses) to ensure consistent error messages.
ExpectUtils for DOM-based validations (visibility, text, attributes) using Playwright's expect.
Assertions as a single gateway combining both, with optional soft-assertion mode to collect multiple failures before reporting.
Designed for easy integration with fixtures and page objects in large test suites.

Quick Start

Install Playwright in your project, then import and instantiate the assertions gateway in your tests:

const assertions = new Assertions(page);
assertions.assert().assertEqual(actual, expected);
await assertions.expect().toBeVisible(someLocator);

Frequently Asked Questions about assertion-utilities

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I standardize and reuse Playwright assertions across a large test suite?▼

You can standardize Playwright assertions by importing a centralized gateway that provides AssertUtils for value-based checks and ExpectUtils for DOM-based validations, reducing duplicate assertion code and easing maintenance.

What are soft-assertions in Playwright and how do they collect multiple test failures?▼

Soft-assertions allow a test to collect multiple validation failures before reporting them, executing subsequent checks instead of stopping immediately, which is enabled via the optional soft-assertion mode in the unified Assertions gateway.

Can I use this assertion utility to validate API responses and DOM visibility in the same test?▼

Yes, the Assertions gateway combines AssertUtils for value-based validations like API responses and strings with ExpectUtils for DOM-based validations like visibility and text, allowing both checks within a single test.

How do I integrate reusable test validations with Playwright fixtures and page objects?▼

You instantiate the assertions gateway by passing the Playwright page object, then call validation methods like assertEqual or toBeVisible, designed for easy integration within existing fixtures and page objects in large test suites.

Do I need to install Playwright to use centralized test assertion utilities?▼

Yes, you must install Playwright in your project first, then import and instantiate the assertions gateway with your page object to start running value-based and DOM-based validations.