---
title: Enrico Trentin - The Code Coverage Paradox
description: "Guest Speaker: Enrico Trentin of Diffblue, presented \"The Code Coverage Paradox: When 90% Isn’t Enough, But Less Might Be\". \n\nThis video was from a live FINOS Open Source in Fintech Meetup on February 17, 2020. Join us live for future \"Meetups\" to see real examples of successful collaboration, hear a few top tips from active contributors, and learn about some innovative approaches to maintaining open source projects."
image: https://www.finos.org/hubfs/FINOS-meetup-enrico-trentin-diffblue.png
---

[![FINOS](https://www.finos.org/hs-fs/hubfs/sofin%20assets/SOFIN%20LOGOS/finos-logo.png?width=543&height=126&name=finos-logo.png "FINOS")](https://finos.org)

- [Projects](https://www.finos.org/projects) 
    - [Artificial Intelligence (AI)](https://ai.finos.org/)
    - [Common Domain Model (CDM)](https://www.finos.org/common-domain-model)
    - [FDC3](https://www.finos.org/fdc3)
    - [Fluxnova](https://fluxnova.finos.org)
    - [FINOS Common Cloud Controls](https://www.finos.org/common-cloud-controls-project)
    - [High Performance Computing (HPC)](https://hpc.finos.org)
    - [OSERA](https://osera.finos.org/)
    - [Open Source Readiness Initiative](https://www.finos.org/open-source-readiness)
    - [OS-Climate](https://www.finos.org/os-climate)
    - [Try our Projects](https://www.finos.org/project-sandbox)
    - [All Projects Landscape](https://landscape.finos.org/)
- [Community](https://www.finos.org/engage-with-our-community) 
    - [FINOS Community Calendar](https://www.finos.org/calendar)
    - [Community Quickstart](https://www.finos.org/get-involved)
    - [FINOS Community Site](https://community.finos.org/)
    - [Contribute](https://community.finos.org/docs/governance/Software-Projects/contribution)
    - [Unable to Contribute?](https://www.finos.org/open-source-readiness)
    - [Join our Slack channel](https://finos-lf.slack.com/messages/finos-community/)
    - [Recognize a contributor](https://github.com/finos/community/issues/new?assignees=mcleo-d&labels=community-recognition&template=Community-Recognition.md&title=FINOS+Community+Recognition)
    - [Ambassador Program](https://www.finos.org/ambassador-program)
- [Membership](https://www.finos.org/membership-benefits) 
    - [Members](https://www.finos.org/members)
    - [Inquire](https://www.finos.org/membership-benefits#become-a-member)
    - [Join](https://joinnow.platform.linuxfoundation.org/?project=finos)
    - [Member ROI Summary & Calculator](https://www.finos.org/roi-report-calculator)
    - [Dependency Consumption Analysis](https://www.finos.org/dependency-consumption-analysis)
- Resources 
    - [2025 Mission & Vision](https://www.finos.org/2024-in-review-2025-vision)
    - [Research & Case Studies](https://www.finos.org/research-case-studies)
    - [Training](https://training.linuxfoundation.org/finos/)
    - [Open Source Maturity Model](https://osr.finos.org/docs/bok/OSMM/Introduction)
    - [Contributions Live Dashboard](https://metrics.finos.org)
    - [Our Github Organization](https://github.com/finos/)
    - [Our Developer Toolchain](https://odp.finos.org/)
    - [FINOS Store](https://store-finos.myshopify.com/)
- News & Events 
    - [This Week At FINOS](https://www.finos.org/this-week-at-finos)
    - [Community Blog](https://www.finos.org/blog)
    - [Newsletter](https://www.finos.org/newsletter)
    - [Podcast: Open Source in Finance](https://www.finos.org/open-source-in-finance-podcast)
    - [Press Releases](https://www.finos.org/press)
    - [FINOS Events](https://www.finos.org/hosted-events)
    - [Community Events](https://www.finos.org/featured-events)
    - [Community Spotlight](https://www.finos.org/community-spotlight)
    - [Stay Informed](https://www.finos.org/sign-up)
- [About](https://www.finos.org/about-us) 
    - [Stay Informed](https://www.finos.org/sign-up)
    - [FAQs](https://www.finos.org/faq)
    - [Contact Us](https://www.finos.org/contact-us)
    - [Governing Board](https://www.finos.org/governing-board)
    - [Technical Oversight Committee](https://www.finos.org/technical-oversight-committee)
    - [Team](https://www.finos.org/team)
    - [Governance](https://www.finos.org/governance)
    - [Code of Conduct](https://www.finos.org/code-of-conduct)
- [OSFF + Videos](https://events.linuxfoundation.org/open-source-finance-forum) 
    - [OSFF 2026](https://events.linuxfoundation.org/open-source-finance-forum/)
    - [OSFF Toronto 2026 Videos](https://www.finos.org/osff-toronto-2026-videos)
    - [OSFF New York 2025 Videos](https://www.finos.org/osff-nyc-2025-videos)
    - [OSFF London 2026 Videos](https://www.finos.org/osff-london-2026-videos)
    - [apidays Paris 2025 Videos](https://www.finos.org/apidays)

- [Projects](https://www.finos.org/projects) 
    - [Artificial Intelligence (AI)](https://ai.finos.org/)
    - [Common Domain Model (CDM)](https://www.finos.org/common-domain-model)
    - [FDC3](https://www.finos.org/fdc3)
    - [Fluxnova](https://fluxnova.finos.org)
    - [FINOS Common Cloud Controls](https://www.finos.org/common-cloud-controls-project)
    - [High Performance Computing (HPC)](https://hpc.finos.org)
    - [OSERA](https://osera.finos.org/)
    - [Open Source Readiness Initiative](https://www.finos.org/open-source-readiness)
    - [OS-Climate](https://www.finos.org/os-climate)
    - [Try our Projects](https://www.finos.org/project-sandbox)
    - [All Projects Landscape](https://landscape.finos.org/)
- [Community](https://www.finos.org/engage-with-our-community) 
    - [FINOS Community Calendar](https://www.finos.org/calendar)
    - [Community Quickstart](https://www.finos.org/get-involved)
    - [FINOS Community Site](https://community.finos.org/)
    - [Contribute](https://community.finos.org/docs/governance/Software-Projects/contribution)
    - [Unable to Contribute?](https://www.finos.org/open-source-readiness)
    - [Join our Slack channel](https://finos-lf.slack.com/messages/finos-community/)
    - [Recognize a contributor](https://github.com/finos/community/issues/new?assignees=mcleo-d&labels=community-recognition&template=Community-Recognition.md&title=FINOS+Community+Recognition)
    - [Ambassador Program](https://www.finos.org/ambassador-program)
- [Membership](https://www.finos.org/membership-benefits) 
    - [Members](https://www.finos.org/members)
    - [Inquire](https://www.finos.org/membership-benefits#become-a-member)
    - [Join](https://joinnow.platform.linuxfoundation.org/?project=finos)
    - [Member ROI Summary & Calculator](https://www.finos.org/roi-report-calculator)
    - [Dependency Consumption Analysis](https://www.finos.org/dependency-consumption-analysis)
- Resources 
    - [2025 Mission & Vision](https://www.finos.org/2024-in-review-2025-vision)
    - [Research & Case Studies](https://www.finos.org/research-case-studies)
    - [Training](https://training.linuxfoundation.org/finos/)
    - [Open Source Maturity Model](https://osr.finos.org/docs/bok/OSMM/Introduction)
    - [Contributions Live Dashboard](https://metrics.finos.org)
    - [Our Github Organization](https://github.com/finos/)
    - [Our Developer Toolchain](https://odp.finos.org/)
    - [FINOS Store](https://store-finos.myshopify.com/)
- News & Events 
    - [This Week At FINOS](https://www.finos.org/this-week-at-finos)
    - [Community Blog](https://www.finos.org/blog)
    - [Newsletter](https://www.finos.org/newsletter)
    - [Podcast: Open Source in Finance](https://www.finos.org/open-source-in-finance-podcast)
    - [Press Releases](https://www.finos.org/press)
    - [FINOS Events](https://www.finos.org/hosted-events)
    - [Community Events](https://www.finos.org/featured-events)
    - [Community Spotlight](https://www.finos.org/community-spotlight)
    - [Stay Informed](https://www.finos.org/sign-up)
- [About](https://www.finos.org/about-us) 
    - [Stay Informed](https://www.finos.org/sign-up)
    - [FAQs](https://www.finos.org/faq)
    - [Contact Us](https://www.finos.org/contact-us)
    - [Governing Board](https://www.finos.org/governing-board)
    - [Technical Oversight Committee](https://www.finos.org/technical-oversight-committee)
    - [Team](https://www.finos.org/team)
    - [Governance](https://www.finos.org/governance)
    - [Code of Conduct](https://www.finos.org/code-of-conduct)
- [OSFF + Videos](https://events.linuxfoundation.org/open-source-finance-forum) 
    - [OSFF 2026](https://events.linuxfoundation.org/open-source-finance-forum/)
    - [OSFF Toronto 2026 Videos](https://www.finos.org/osff-toronto-2026-videos)
    - [OSFF New York 2025 Videos](https://www.finos.org/osff-nyc-2025-videos)
    - [OSFF London 2026 Videos](https://www.finos.org/osff-london-2026-videos)
    - [apidays Paris 2025 Videos](https://www.finos.org/apidays)

![Community Blog](https://www.finos.org/hubfs/10.04.19.FINOS_WebsiteBanners_3.png)

# Community Blog

# Enrico Trentin - The Code Coverage Paradox

 February 24, 2021

[FINOS Team](https://www.finos.org/blog/author/finos-team)

**Guest Speaker: Enrico Trentin of Diffblue, presented "The Code Coverage Paradox: When 90% Isn’t Enough, But Less Might Be". **

This video was from a live FINOS Open Source in Fintech Meetup on February 17, 2020. [**Join us live for future "Meetups" to see real examples of successful collaboration**](https://finos.org/hosted-events), hear a few top tips from active contributors, and learn about some innovative approaches to maintaining open source projects.

 

### ENRICO'S Presentation

 

 

 

 

***Enrico's Presentation: The Code Coverage Paradox: When 90% Isn’t Enough, But Less Might Be - February 17th, 2021***

**Talk abstract** - Code coverage is the metric everyone knows - but is it really what you need to be using? In this talk, we will walk you through the code metrics that actually matter, identify areas of risk, and efficiently improve them with manual and automated means, using examples from FINOS open source projects and data-modelling platforms.

### [DOWNLOAD THE SLIDES](https://www.finos.org/hubfs/FINOS%20OS%20in%20Fintech%20Meetup%20-%20The%20coverage%20paradox%20slides.pdf)

[![FINOS-meetup-enrico-trentin-diffblue](https://www.finos.org/hs-fs/hubfs/FINOS-meetup-enrico-trentin-diffblue.png?width=686&name=FINOS-meetup-enrico-trentin-diffblue.png)](https://www.finos.org/hubfs/FINOS%20Webinar%20CloudBees%20Anders%20Wallgren%20deck%202020-09-09.pdf)

 

**Enrico's Bio:**

**Enrico Trentin, Developer Relations Lead, Diffblue**

Enrico Trentin is the developer relations lead at Diffblue. He has been a developer for eight years, primarily working in Java. Originally from Italy, he is now based in Oxford, UK.

 

### FINOS Open source in fintech

For a full weekly list of meetups, webinars, and other open source project oriented meetings, please refer to [**“This Week at FINOS”**](https://www.finos.org/this-week-at-finos), and sign up for the email that comes out every Monday.

(Email [**community+subscribe@finos.org**](mailto:community+subscribe@finos.org) to be automatically added to the distribution.)

 

**Interested in FINOS open source projects? Click the link below to see how to get involved in the FINOS Community.**

 

[![Get Involved](https://no-cache.hubspot.com/cta/default/2419532/89037a0a-24fa-4ef5-bbf8-34d9a45ea1d3.png)](https://cta-redirect.hubspot.com/cta/redirect/2419532/89037a0a-24fa-4ef5-bbf8-34d9a45ea1d3)

 

### Share this:

- [Tweet](https://twitter.com/share)

<https://www.finos.org/blog/enrico-trentin-the-code-coverage-paradox>

[← Primer: The Code Coverage Paradox - DiffBlue](https://www.finos.org/blog/primer-the-code-coverage-paradox-diffblue)

[Open Source in Fintech Podcast: The Code Coverage Paradox - Diffblue →](https://www.finos.org/blog/open-source-in-fintech-podcast-the-code-coverage-paradox-diffblue)

[![FINOS Logo](https://www.finos.org/hs-fs/hubfs/sofin%20assets/SOFIN%20LOGOS/FINOS_Icon_Wordmark_White.png?width=689&height=971&name=FINOS_Icon_Wordmark_White.png "FINOS Logo")](https://www.finos.org/)

[![Twitter logo](https://finos.org/hubfs/2419532/FINOS/website/logos/social-logos/twitter-blue-social-panel.png)](https://twitter.com/finosfoundation) [![GitHub logo](https://finos.org/hubfs/2419532/FINOS/website/logos/social-logos/github-black-social-panel.png)](https://finos.github.io) [![LinkedIn logo](https://finos.org/hubfs/2419532/FINOS/website/logos/social-logos/linkedin-blue-social-panel.png)](https://www.linkedin.com/company/finosfoundation) [![SlideShare logo](https://finos.org/hubfs/2419532/FINOS/website/logos/social-logos/Homepage%20Social%20Panel/slideshare-logo.png)](https://www.slideshare.net/finosfoundation) [![YouTube logo](https://finos.org/hubfs/2419532/FINOS/website/logos/social-logos/Homepage%20Social%20Panel/youtube_logo-1.png)](https://www.youtube.com/channel/UCfJAdRALzJ7J7snubrb_Y-Q)

[Contact Us](https://www.finos.org/contact-us)  
[info@finos.org](mailto:info@finos.org)  
+1 (650) 665-9773

[Privacy | ](https://www.finos.org/privacy-policy)[Terms of Service |](https://www.finos.org/terms-of-service)[Community Code of Conduct |](https://www.finos.org/code-of-conduct)[Email Preferences](https://www.finos.org/hs/manage-preferences/unsubscribe-simple)

![](https://px.ads.linkedin.com/collect/?pid=537250&fmt=gif)

```json
{
  "@context" : "https://schema.org",
  "@type" : "VideoObject",
  "contentUrl" : "https://2419532.fs1.hubspotusercontent-na1.net/hubfs/2419532/FINOS/2021%20Audio%20and%20Video/FINOS%20Meetup%20-%20Code%20Coverage%20-%20Diffblue%20-%2020210217.mp4",
  "dateModified" : "2025-01-27T07:51:30.965Z",
  "description" : "",
  "duration" : "PT27M35.32S",
  "height" : 720,
  "name" : "FINOS Meetup - Code Coverage - Diffblue - 20210217",
  "thumbnailUrl" : "https://2419532.fs1.hubspotusercontent-na1.net/hubfs/2419532/FINOS/2021%20Audio%20and%20Video/FINOS%20Meetup%20-%20Code%20Coverage%20-%20Diffblue%20-%2020210217.mp4/medium.jpg?t=1737964290965",
  "uploadDate" : "2021-02-22T16:58:25.595Z",
  "width" : 1280
}
```