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Automock vs Hover Preview
Short answer: Pick Automock if you want automated mocks for DI testing; pick Hover Preview if you want Hover-based HTML rendering in the editor. Automock is free and open source; Hover Preview is paid.
Which to pick
Pick Automock if you want…
- Automated mocks for DI testing
- Simplified TypeScript unit tests
- A free, open-source tool
- Integrations with TypeScript, NestJS or Inversify (on Automock's list, not Hover Preview's)
Pick Hover Preview if you want…
- Hover-based HTML rendering in the editor
- Integrations with Visual Studio Code or HTML (on Hover Preview's list, not Automock's)
Side by side
- What it is
- Automock:Automock provides a virtual isolated environment and automated mock generation to simplify unit testing in TypeScript DI frameworks like NestJS and Inversify.
- Hover Preview:Hover Preview is a VS Code extension that shows rendered HTML previews when you hover over tags.
- Best for
- Automock:Automated mocks for DI testing
- Hover Preview:Hover-based HTML rendering in the editor
- Who it’s for
- Automock:TypeScript developers using dependency-injection frameworks
- Hover Preview:Web developers working in VS Code who want quick visual feedback for HTML.
- Pricing
- Automock:Open source
- Hover Preview:Paid
- Starting price
- Automock:Free
- Hover Preview:—
- Free plan or trial
- Automock:Free to use
- Hover Preview:—
- Open source
- Automock:Yes
- Hover Preview:Yes, 31 GitHub stars
- Works with
- Automock:TypeScript, NestJS, Inversify
- Hover Preview:Visual Studio Code, HTML
Automock features
- Virtual isolated environment. Creates a sandboxed context for tests to run without side effects.
- Automated mock generation. Generates mocks for classes and services automatically.
- DI framework support. Works with NestJS and Inversify out of the box.
- Open-source. Free to use and contributed by the community.
Hover Preview features
- Hover preview. Render the full HTML page in a tooltip when you hover over any tag.
- Element preview. Hover over a specific element to see only that part rendered.
- Configurable size. Set the preview tooltip width and height via settings.
- Temporary file rendering. Creates a .hoverpreview.temp.html file in the workspace to render the preview.
Automock vs Hover Preview FAQ
What is the difference between Automock and Hover Preview?+
Automock focuses on unit test generation, not HTML preview.
Should I use Automock or Hover Preview?+
Pick Automock if you want automated mocks for DI testing, simplified TypeScript unit tests or a free, open-source tool. Pick Hover Preview if you want Hover-based HTML rendering in the editor or integrations with Visual Studio Code or HTML (on Hover Preview's list, not Automock's).
Is Automock or Hover Preview free?+
Automock is free and open source. Hover Preview is paid.
Is Automock or Hover Preview open source?+
Yes, both are open source: Automock (automock/automock on GitHub) and Hover Preview (PaulleDemon/Hover-Preview on GitHub, AGPL-3.0 license).
Do Automock and Hover Preview integrate with the same tools?+
Their integration lists don't overlap: Automock lists TypeScript, NestJS and Inversify; Hover Preview lists Visual Studio Code and HTML.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.

