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Cucumber VS FastAPI

Compare Cucumber VS FastAPI and see what are their differences

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Cucumber logo Cucumber

Cucumber is a BDD tool for specification of application features and user scenarios in plain text.

FastAPI logo FastAPI

FastAPI is an Open Source, modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints.
  • Cucumber Landing page
    Landing page //
    2022-01-19
  • FastAPI Landing page
    Landing page //
    2023-05-14

Cucumber features and specs

  • Behavior-Driven Development (BDD) Framework
    Cucumber supports BDD, allowing collaboration between developers, testers, and non-technical stakeholders to improve the quality of development through clear specifications.
  • Gherkin Syntax
    Utilizes the Gherkin language to write test cases in plain English, making them more readable and understandable for non-technical team members.
  • Integrates with Other Tools
    Easily integrates with other testing and development frameworks like JUnit, TestNG, and Selenium, enhancing its flexibility and utility.
  • Open Source
    As an open-source tool, Cucumber allows for extensive customization and community support, reducing the cost of setting up a testing framework.
  • Supports Multiple Languages
    Offers support for various programming languages including Java, Ruby, and JavaScript, making it versatile for different project needs.

Possible disadvantages of Cucumber

  • Steep Learning Curve
    Requires a good understanding of both BDD practices and Cucumberโ€™s structure, which might be challenging for beginners.
  • Performance Overheads
    Execution of Cucumber tests can be slower compared to other testing frameworks, making it less ideal for very large projects requiring fast feedback loops.
  • Verbose Code
    Writing tests in Gherkin can lead to more verbose code, which might require additional maintenance and can become cumbersome over time.
  • Dependency Management
    Managing dependencies for integrating Cucumber with other testing frameworks can be complex, requiring careful coordination.
  • Not Ideal for Unit Testing
    Cucumber is more suited for acceptance and integration testing rather than unit testing, potentially necessitating additional tools for a comprehensive testing strategy.

FastAPI features and specs

  • High Performance
    Built on Starlette and Pydantic, FastAPI is one of the fastest frameworks for Python, providing high performance due to its asynchronous request handling.
  • Automatic Interactive API Documentation
    FastAPI automatically generates interactive API documentation via Swagger UI and ReDoc, which are very helpful for development and testing.
  • Type Checking and Validation
    With Pydantic models and Python type hints, FastAPI provides automatic data validation and type checking, reducing the chance of runtime errors.
  • Ease of Use
    Its syntax and design make it easy to learn for Python developers, offering a smooth development experience while reducing boilerplate code.
  • Asynchronous Support
    FastAPI supports asynchronous programming, allowing for better performance for I/O-bound operations, making it optimal for handling many simultaneous connections.
  • Extensive Documentation
    It has comprehensive and well-structured documentation, which is very useful for both beginners and advanced users.
  • Community and Ecosystem
    FastAPI has a growing community and ecosystem, with many plugins and integrations available to extend its functionality.

Possible disadvantages of FastAPI

  • Learning Curve for Asynchronous Programming
    Although FastAPI itself is easy to learn, grasping the concepts of asynchronous programming in Python can be challenging for beginners.
  • Complex Dependencies
    Using Pydantic for advanced validation can make the request models complex, requiring a deeper understanding of Pydantic and its functionalities.
  • Early Stage Libraries
    Some third-party libraries and extensions specifically tailored for FastAPI might still be in early stages of development and lack long-term stability.
  • Limited Real-World Examples
    Although the documentation is extensive, there might be limited real-world examples and case studies readily available compared to more mature frameworks.
  • Deployment Complexity
    Deploying FastAPI applications might be more complex in comparison to traditional synchronous frameworks, mainly due to the need for asynchronous server setups.

Analysis of Cucumber

Overall verdict

  • Yes, Cucumber (cukes.info) is generally considered a good tool for behavior-driven development (BDD).

Why this product is good

  • Cucumber is highly regarded because it allows teams to write tests in plain language that can be understood by all stakeholders, regardless of technical expertise. This enhances communication and collaboration between developers, testers, and business professionals. Furthermore, it supports various programming languages and integrates well with other tools, making it versatile and adaptable to different engineering environments.

Recommended for

  • Teams practicing behavior-driven development (BDD)
  • Projects that require clear communication between non-technical and technical team members
  • Development environments where automated testing is an integral part of the process
  • Organizations aiming to improve collaboration and understanding across departments

Analysis of FastAPI

Overall verdict

  • FastAPI is widely regarded as a good choice, especially for applications that require high performance, scalability, and modern Python features. It is suitable for both simple and complex projects, making it a versatile tool in the web development ecosystem.

Why this product is good

  • FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.7+ based on standard Python type hints. It is built on top of Starlette for web framework capabilities and Pydantic for data validation and settings management. FastAPI is known for its excellent performance, automatic generation of interactive API documentation (with Swagger and Redoc), and support for asynchronous programming. Developers appreciate its ease of use, detailed documentation, and helpful error messages.

Recommended for

  • Developers building RESTful APIs
  • Teams looking for a high-performance ASGI-based web framework
  • Projects that require asynchronous programming capabilities
  • Applications needing automatic generation of interactive API documentation
  • Python developers who prefer utilizing type hints for code clarity and validation

Cucumber videos

Madam Kilay Skin Magical Review / Orange cucumber review

More videos:

  • Review - Puff Bar - Cucumber Review (Best Disposable Vape Brand)
  • Review - THE CUCUMBER CHALLENGE! (1 MILLION SUBSCRIBER SPECIAL)
  • Tutorial - Cucumber automation suit

FastAPI videos

FastAPI from the ground up

More videos:

  • Tutorial - 30 Days of Python - Day 14 - Web App with Flask, FastAPI, ngrok, and Invictify - Python TUTORIAL
  • Review - [PT] Python - API com FastAPI - Chat | twitch.tv/codeshow

Category Popularity

0-100% (relative to Cucumber and FastAPI)
Automated Testing
100 100%
0% 0
Developer Tools
0 0%
100% 100
Testing
100 100%
0% 0
API Tools
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Cucumber and FastAPI

Cucumber Reviews

Top Selenium Alternatives
Cucumber itself is not a test automation tool but a framework that supports BDD. It is often used in conjunction with Selenium to provide a layer where test scenarios are written in a way that is understandable by all team members. Unlike Selenium, which focuses on automating browser actions, Cucumber focuses on defining behavior and can be used to drive Selenium tests.
Source: bugbug.io
5 Selenium Alternatives to Fill in Your Top Testing Gaps
Business testers are likely to prefer to use Cucumber over Selenium since script Cucumber lets you write test scenarios using a plain-English scripting language called Gherkin. Using Gherkin instead of code makes test script creation a much simpler process, since anyone can read, write, and understand the scripts regardless of testing experience.
Source: www.perfecto.io
Top 20 Best Automation Testing Tools in 2018 (Comprehensive List)
Cucumber is an open-source tool that is designed over the concept of BDD (Behavior-driven development). It is used to perform the automated acceptance testing by running the examples that best describe the behavior of the application. It gets you a single up-to-date living document that is having both specification and test documentation.

FastAPI Reviews

  1. Kurslog team
    ยท Working at Kurslog ยท

    When our backend team needs to build services for data parsing, aggregators, or high-load APIs, FastAPI is our absolute go-to choice. It completely lives up to its name-development speed is outstanding.

    The combination of Pydantic for data validation and built-in async support keeps our shared codebase clean, strictly typed, and reliable. But the biggest highlight for our cross-functional team is the automatic generation of interactive OpenAPI (Swagger) documentation. Our frontend and mobile developers no longer have to wait for backend engineers to manually update API docs; everything stays perfectly in sync automatically. It has drastically improved our team's communication and delivery speed.

    ๐Ÿ Competitors: Django, Flask, ExpressJS, Nest.js, Spring Boot
    ๐Ÿ‘ Pros:    Blazing fast performance (on par with nodejs and go)|Native asynchronous support out of the box|Automatic, interactive documentation generation (swagger/redoc)|Strict typing and data validation with pydantic
    ๐Ÿ‘Ž Cons:    Smaller plug-and-play ecosystem compared to older frameworks like django|Requires our architects to design the project structure and directory layout from scratch

The 20 Best Laravel Alternatives for Web Development
FastAPI, as the name hints, is a swift mover. Built on Starlette, itโ€™s all about speed and performance with Python. Crafting API masterpieces at the speed of light, now thatโ€™s something.
25 Python Frameworks to Master
Since its release in 2018, it has rapidly gained popularity due to its great performance and simplicity. In fact, according to PyPi Stats, FastAPI has over 9 million monthly downloads, surpassing even full-stack frameworks like Django.
Source: kinsta.com
3 Web Frameworks to Use With Python
myapp/ is the main directory of your FastAPI application. It includes all the other files and directories needed for the application.static/ is a directory used to store static assets such as CSS, JavaScript, and image files. These assets are served directly by the web server and are typically used to add visual styling and interactivity to the application.css/, img/, js/...
Best Alternatives to FastAPI App Free for Windows (2021)
FastAPI Alternative โ€“ So many alternatives app to FastAPI that you must to know out there. And, looking for an ideal software was not easy matter. Lucky you, at this page you can find the best replacement app for FastAPI. So what you are waiting for, get the latest FastAPI alternative app for Windows 10 from this page.
Top 5 Back-End Frameworks to Consider for Web Development in 2021
FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints. It is fast when compared to other major Python frameworks like Flask and Django. FastAPI gives great flexibility to fulfill businessesโ€™ API needs in todayโ€™s evolving world.

Social recommendations and mentions

Based on our record, FastAPI seems to be a lot more popular than Cucumber. While we know about 311 links to FastAPI, we've tracked only 1 mention of Cucumber. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Cucumber mentions (1)

FastAPI mentions (311)

  • Shipping Sovereign SDK: Cryptographic Forensic Receipts and the End of the AI "Prose Tax"
    The Sovereign SDK is a Python-native framework designed to minimize prose overhead while generating ironclad, cryptographic execution receipts for AI agents, complete with drop-in FastAPI/Starlette ASGI middleware. - Source: dev.to / about 2 months ago
  • 5-Minute AI Jobs and Closed Tabs โ€” Why We Built Replay-Then-Tail SSE
    We had a feature in production where a single user request could run for five-plus minutes โ€” fetch documents, chunk them, hit an LLM per chunk, synthesize a final answer. We did the obvious thing first: a FastAPI handler that ran the pipeline and streamed progress back to the browser over Server-Sent Events. - Source: dev.to / 3 months ago
  • FastAPI With LangChain and MongoDB
    FastAPI is a Python framework for building APIs quickly, efficiently, and with very little code. - Source: dev.to / 3 months ago
  • I Built A " CrowdSense AI " : A Scalable, Context-Aware Platform for Smart Stadiums
    Backend: Python-based FastAPI for its asynchronous I/O capabilities and rapid JSON serialization. - Source: dev.to / 3 months ago
  • Async PyMongo in FastAPI
    FastAPI is a high-performance web framework that is production-ready and designed for building APIs in python, with roots embedded in asynchronous programming. It embraces Pythonโ€™s asyncio model as its core principle rather than treating it as optional. This design choice gives FastAPI leverage for I/O bound workloads such as db access, external API calls and real-time data streaming. - Source: dev.to / 3 months ago
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What are some alternatives?

When comparing Cucumber and FastAPI, you can also consider the following products

Selenium - Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily, it is for automating web applications for testing purposes, but is certainly not limited to just that.

Flask - a microframework for Python based on Werkzeug, Jinja 2 and good intentions.

JUnit - JUnit is a simple framework to write repeatable tests.

ExpressJS - Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple

RSpec - RSpec is a testing tool for the Ruby programming language born under the banner of Behavior-Driven Development featuring a rich command line program, textual descriptions of examples, and more.

Django - The Web framework for perfectionists with deadlines