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react-testing-library VS Mattermark API

Compare react-testing-library VS Mattermark API and see what are their differences

react-testing-library

[`React Testing Library`][gh] builds on top of `DOM Testing Library` by adding

react-testing-library Landing page
Rating
0 reviews
Alternatives Is it good?
Mattermark API

Spend more time winning customers and less gathering data

Mattermark API Landing page
Rating
0 reviews
Alternatives Is it good?
boldrouter
A unified, OpenAI-compatible gateway to every major LLM provider. One endpoint, one key, one bill - with automatic routing and failover. sponsored

Which is more popular?

Based on our record, react-testing-library seems to be more popular. It has been mentioned 137 times since March 2021.

social mentions
137 vs 0
Developer Tools popularity
94% vs 6%
alternatives listed
120 vs 26

Base details

Website, pricing, platforms and company facts side by side.

react-testing-library
Mattermark API
Website testing-library.com mattermark.com
Listed in
Developer Tools JavaScript Framework Testing React +1
APIs Developer Tools API Marketplace API Tools +1

Features and specs

What each product offers, as listed by its team.

react-testing-library 5 features
Mattermark API 0 features
  • Focused on user-centric testing
    React Testing Library encourages tests that closely resemble how users interact with an application. This approach makes tests more reliable and meaningful.
  • Reduces coupling to implementation details
    By encouraging developers to interact with components via the DOM, the library minimizes dependencies on component internals, making tests less prone to breaking from refactors.
  • Improved test readability
    Tests written with React Testing Library are generally easier to read and understand because they focus on what the user sees and does, rather than the internal logic of the components.
  • Comprehensive query options
    The library provides a wide range of query methods (e.g., getByText, getByRole), which makes it easy to select elements in ways that resemble how users think.
  • Active community and well-maintained
    React Testing Library has a strong, active community and it's maintained by experienced developers who keep the library up-to-date with React's evolution.

Possible disadvantages

  • Limited support for non-DOM testing
    The library is heavily focused on DOM interactions, making it less suited for testing non-DOM logic or scenarios that don't involve user interactions.
  • Can be slower
    Tests that involve the DOM can be slower compared to tests that interact directly with component methods and state, which can lead to longer test execution times.
  • Learning curve for traditional testers
    Developers who are used to testing implementation details with other tools (like Enzyme) might find it challenging to adjust to the user-centric approach advocated by React Testing Library.
  • Potential for less granular control
    Because the library encourages testing through the UI, developers might find it harder to test specific, isolated internal behaviors of components that aren't directly visible to users.
  • Dependencies on browser APIs
    The library's reliance on browser APIs means that tests may behave differently in different environments or may require polyfills for certain features, leading to potential inconsistencies.

No features have been listed yet.

Analysis

An editorial look at what each product does well and who it suits.

react-testing-library
Mattermark API

Overall verdict

  • React Testing Library is highly regarded in the React community for its simplicity and effective approach to testing React components. It’s known for promoting good testing practices that result in reliable and maintainable code.

Why this product is good

  • React Testing Library is considered good because it encourages testing practices that closely resemble how users interact with the application. It emphasizes testing components from the user's perspective and discourages testing implementation details, which can lead to more robust and maintainable tests.

Recommended for

  • Developers looking to improve the reliability of their React applications
  • Teams interested in adopting user-centric testing methodologies
  • Projects that prioritize maintainable and understandable test code

Overall verdict

  • Mattermark's API was a solid tool for accessing structured company and startup intelligence data, though it's worth noting the service was acquired and has undergone significant changes over the years, so its current availability and quality may differ from its prime.

Why this product is good

  • Provided programmatic access to a large database of company growth signals, funding, and business intelligence data
  • Useful for automating deal sourcing and lead generation workflows for investors and sales teams
  • Aggregated data from multiple sources including funding rounds, web traffic, and social metrics
  • Saved time by delivering structured, quantified company data rather than manual research

Recommended for

  • Venture capital firms and investors sourcing and tracking startups
  • Sales and business development teams building targeted prospect lists
  • Market researchers analyzing company growth trends
  • Developers integrating company intelligence data into internal CRM or analytics tools

Videos

Walkthroughs and reviews on video.

react-testing-library 2 videos + Add
Mattermark API 0 videos + Add

React unit testing with Jest & React-testing-library

More videos

  • Review - Test a React Component that renders a list with react-testing-library

No Mattermark API videos yet. You could help us improve this page by suggesting one.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
react-testing-library
Mattermark API
94% 94%
Developer Tools
6% 6%
0% 0%
APIs
100% 100%
100% 100%
Javascript UI Libraries
0% 0%
0% 0%
API Marketplace
100% 100%

User comments

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

react-testing-library 137 mentions
Mattermark API 0 mentions
  • Test-Driven Development for Building User Interfaces
    React Testing Library’s core philosophy is that we should write our tests in such a way that we simulate user behavior. By testing what the user can actually do, our tests focus less on implementation details and more on the actual user... - Source: dev.to / 7 months ago
  • Chaos-Driven Testing for Full Stack Apps: Integration Tests That Break (and Heal)
    In the main branch, we set up Vitest as the test runner and React Testing Library for rendering the component and simulating user interactions. We also set up MSW to intercept the network requests and return mock responses. - Source: dev.to / 11 months ago
  • 🚀 9 Libraries to Boost Your Productivity as a React Developer
    React Testing Library (RTL) provides lightweight utilities built on top of react-dom and react-dom/test-utils, designed to promote testing through user interactions rather than component internals. Instead of working with component... - Source: dev.to / about 1 year ago

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Tracking Mattermark API since Mar 2021.

Alternatives to react-testing-library and Mattermark API

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