Comparison

pytest vs TestNG

On the evidence we track, pytest leads this comparison with a composite score of 75/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
★pytest75
TestNG55
Score
vioscaleAI score
pytest75 / 100medium · 72%
TestNG55 / 100low · 41%
Pricing
Free tier
pytest✓
TestNG✓
Model
Price level
pytestfree
TestNGfree
Integrations
Count
pytest–
TestNG4
Reliability
Status page
pytest–
TestNG✓
Adoption
Dependent repos
pytest283,154
TestNG112,338
Github stars
pytest14,599
TestNG2,061
Package downloads weekly
TestNG–
Stackoverflow questions
pytest30,000
TestNG–
Activity
Commits last 30d
pytest54
TestNG100
Release
Cadence days
pytest46
TestNG103
History
pytest20 items
TestNG12 items
License
Spdx
pytestMIT
Language
Primary
pytestPython
TestNGJava
Market
Content
Faq
pytest8 items
TestNG6 items

Capabilities

Feature-by-feature on the axes that matter for testing tools. “-” means undocumented, not absent.

Core
Test types
pytest-
TestNG-
Browser automation
pytest-
TestNG✗
Built-in assertion library
pytest✓
TestNG✓
Languages
pytestPython
TestNGJava
Isolation
Mocking / stubbing
pytest-
TestNG-
Techniques
Snapshot testing
pytest-
TestNG-
Performance
Parallel execution
pytest-
TestNG✓
Insight
Code coverage
pytest-
TestNG-
DX
Watch mode
pytest-
TestNG-
Ops
CI integration
pytest✓
TestNG✓

What each one is

The product in its own terms, so the numbers below have context.

pytest

Leader

A Python framework designed for writing tests ranging from basic to complex, featuring straightforward assertion syntax with detailed failure diagnostics and built-in support for test organization through fixtures and parameterization.

Independently observed

TestNG

An open-source testing framework that provides utilities and tools for Java developers to write and execute automated tests

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

pytest

Leader
Open sourceFree tier

Free and open source. Enterprise support available via Tidelift.

  • Community (Open Source)Free
    • Detailed assertion introspection
    • Auto-discovery of test modules
    • Modular fixtures
    • unittest compatibility
    • 1300+ external plugins
  • Enterprise SupportContact sales
as of verify ↗

TestNG

Open sourceFree tier
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
CLI
pytest✓
TestNG✓
Deployment
Self-hosted
pytest✓
TestNG✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

pytest

Leader

Not documented yet.

TestNG

4 total
  • Eclipse
  • IntelliJ
  • Maven
  • Gradle
Independently observed
Still deciding?

pytest or TestNG: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.