Software Alternatives, Accelerators & Startups

Ostinato VS assertpy

Compare Ostinato VS assertpy and see what are their differences

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Ostinato logo Ostinato

Ostinato is a packet crafter and traffic generator for network engineers. Wireshark in Reverse!

assertpy logo assertpy

A straightforward assertion library for Python.
  • Ostinato Landing page
    Landing page //
    2023-08-28

A very capable alternative to the industry standard traffic generator and network testing tools, at a fraction of the cost.

Functional testing and Performance testing. All common protocols. Create packets from scratch or import, edit and replay PCAP files. Use the friendly GUI for manual testing and the powerful API for test automation and scripting. Emulate multiple devices with ARP and ping support.

  • assertpy Landing page
    Landing page //
    2022-11-06

Ostinato

$ Details
paid $149 / Annually (1 device, 4 ports)
Platforms
Windows MacOS Linux Docker Virtual Appliance
Release Date
2010 April

assertpy

Website
github.com
Pricing URL
-
$ Details
-
Platforms
-
Release Date
-
Categories

Ostinato features and specs

  • Flexible Packet Crafting
  • Line Rate Traffic (Turbo add-on)
    Yes - 1G/10G/25G/40G
  • Automation Support
    Yes - Python API
  • Multicast
    Yes - Multicast Data, IGMP and MLD
  • Emulation
    Yes - Device Emulation and Protocol Emulation

assertpy features and specs

  • Fluent API
    Assertpy offers a fluent API that makes assertions more readable and expressive, enabling developers to write assertions in a natural language style that is easy to understand.
  • Chainable Assertions
    It allows for chainable assertions, enabling multiple checks to be performed in a single line of code, thereby reducing verbosity and enhancing clarity.
  • Comprehensive Assertion Methods
    The library provides a wide range of built-in assertion methods, catering to various types of data validations, such as checking for size, type, value, and more.
  • Extensibility
    Assertpy supports extending its functionality by defining custom assertions, allowing developers to tailor it to their specific needs.
  • Pythonic
    Designed with Pythonic principles in mind, Assertpy fits seamlessly into Python projects, enabling idiomatic and consistent code style.

Possible disadvantages of assertpy

  • Learning Curve
    Developers new to the library may encounter a learning curve due to the distinct approach of using fluent and chainable assertions as opposed to traditional methods.
  • Limited by Python Version
    The library may have limitations in terms of compatibility with older versions of Python, requiring users to ensure their environment is up-to-date.
  • Performance Overhead
    The additional abstraction layer introduced by a fluent interface might introduce some performance overhead, especially in performance-critical or resource-constrained environments.
  • Less Community Support
    Compared to more established testing libraries, Assertpy might have less community support and fewer resources available for resolving issues or getting help.
  • Dependency Management
    Using a third-party library introduces additional dependencies to manage, which could complicate project maintenance and compatibility.

Analysis of assertpy

Overall verdict

  • assertpy is a well-regarded, lightweight assertion library for Python that provides a fluent, chainable API for writing readable and expressive test assertions, making it a solid choice for improving test clarity.

Why this product is good

  • Offers a fluent, chainable assertion syntax that makes tests more readable and self-documenting
  • Comprehensive built-in assertions for strings, numbers, lists, dicts, files, dates, and more
  • Produces clear, descriptive failure messages that speed up debugging
  • Lightweight with minimal dependencies and easy to integrate into existing test suites
  • Framework-agnostic, working seamlessly with pytest, unittest, and other test runners
  • Actively maintained open-source project with good documentation and community support

Recommended for

  • Python developers who want more readable and expressive test assertions
  • Teams using pytest or unittest looking to enhance assertion clarity
  • Projects that value descriptive failure messages for faster debugging
  • Developers coming from fluent assertion libraries in other languages (like AssertJ or Chai)
  • QA engineers and testers writing maintainable, self-documenting test code

Ostinato videos

Ostinato device emulation

More videos:

  • Demo - Generate SIP traffic with Ostinato
  • Demo - Ostinato overview and Demo

assertpy videos

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

Add video

Category Popularity

0-100% (relative to Ostinato and assertpy)
Monitoring Tools
100 100%
0% 0
Testing
0 0%
100% 100
Network & Admin
100 100%
0% 0
Python
0 0%
100% 100

Questions & Answers

As answered by people managing Ostinato and assertpy.

Who are some of the biggest customers of your product?

Ostinato's answer

From individual network engineers to small companies to Fortune 500 companies

How would you describe the primary audience of your product?

Ostinato's answer

Ostinato is used by network engineers and developers building, testing or deploying networks and network devices

What's the story behind your product?

Ostinato's answer

Network engineer and programmer Srivats P created Ostinato as an alternative to pricey commercial traffic generators. You can read the full origin story.

Why should a person choose your product over its competitors?

Ostinato's answer

Advanced features at a fraction of the cost of commercial traffic generators. Outstanding customer support.

Which are the primary technologies used for building your product?

Ostinato's answer

C++, Qt5, libpcap, AF_XDP

User comments

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Reviews

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

Ostinato Reviews

  1. great stuff

    it just does the job! great support from the creator as well.

  2. Shashikiran
    ยท Senior Engineer at Analog Devices ยท
    Best Ethernet Traffic Generator

    As a novice to networking protocol, I was able to understand the protocols much better with the help of Ostinato Traffic generator. With wide options to explore and support to use the same thing with python helped me and my team in understanding & testing of different protocols. Especially response from Srivats for the queries helped me step custom streams for my application.

  3. Justin
    ยท VP of Engineering at ReadyLinks ยท
    Best packet generator I've ever used

    I used Ostinato a couple years back at a different company and loved it then. Now, at a new company, purchased a new license for it and am still impressed. Super user friendly and intuitive, the creator reaches out after you buy and offers awesome support/tutorial videos.

    Network engineers, this is the app to test storm control, packet rate limits, and any other feature you need to test. Also replay wireshark packet captures. So awesome.

    ๐Ÿ‘ Pros:    Replay wireshark packet captures|Packet crafting|Set packets/second rates
    ๐Ÿ‘Ž Cons:    None

assertpy Reviews

We have no reviews of assertpy yet.
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Social recommendations and mentions

Based on our record, Ostinato seems to be more popular. It has been mentiond 3 times since March 2021. 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.

Ostinato mentions (3)

assertpy mentions (0)

We have not tracked any mentions of assertpy yet. Tracking of assertpy recommendations started around Mar 2021.

What are some alternatives?

When comparing Ostinato and assertpy, you can also consider the following products

Scapy - Scapy is a powerful interactive packet manipulation program.

grappa - grappa is an declarative, verbose, and expressive assertion library for Python.

Bit-Twist - Bit-Twist is a powerful packet generator (10Gbps on single core) and editor, written in POSIX-compliant C. Designed to complement tcpdump, it can replay captured traffic from pcap files onto live networks and supports Windows, Linux, BSD, and macOS.

packeth - packeth is GUI and CLI packet generator tool for ethernet.

Nipper - Nipper - Neat Internet Protocol Packet EditoR - is a graphical packet generation tool.

Wireshark - Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.