--- title: Introducing the Trompeloeil C++ mocking framework description: Trompeloeil is a header-only C++14 mocking framework designed for ease of use without sacrificing expressive power. It uses macros like MAKE_MOCK,... canonical: https://daily.dev/posts/introducing-the-trompeloeil-c-mocking-framework-efsv46xan twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Introducing the Trompeloeil C++ mocking framework | daily.dev og:description: Trompeloeil is a header-only C++14 mocking framework designed for ease of use without sacrificing expressive power. It uses macros like MAKE_MOCK,... og:url: https://daily.dev/posts/introducing-the-trompeloeil-c-mocking-framework-efsv46xan og:image: https://api.daily.dev/og/posts/Efsv46XAN.png og:image:alt: Introducing the Trompeloeil C++ mocking framework og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Introducing the Trompeloeil C++ mocking framework **[Playful Programming](https://daily.dev/sources/playfulprogramming)** · 6 min read · 0 upvotes · 0 comments ## Summary Trompeloeil is a header-only C++14 mocking framework designed for ease of use without sacrificing expressive power. It uses macros like MAKE_MOCK, REQUIRE_CALL, and NAMED_REQUIRE_CALL to define mock classes and set expectations on method calls. Key features include sequence ordering of calls, wildcards, call count constraints (TIMES, AT_LEAST, AT_MOST), side effects, and the distinction between value-capture and reference-capture variants (LR_ prefix). The framework integrates with existing test runners and follows lifetime-based expectation enforcement via C++ scope rules. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Typemock releases Isolator\+\+ 5.4 for improved C\+\+ testing](https://daily.dev/posts/typemock-releases-isolator-5-4-for-improved-c-testing-hcjm7z1rg) · SD Times · 0 upvotes · 0 comments - [test-part2](https://daily.dev/posts/test-part2-vn8busjnf) · C\+\+ · 0 upvotes · 0 comments - [Let’s Build a Unit Testing Library From Scratch](https://daily.dev/posts/let-s-build-a-unit-testing-library-from-scratch-kbtssyqva) · Medium · 0 upvotes · 0 comments - [Mocks Are Your Friends, Not Your Servants](https://daily.dev/posts/mocks-are-your-friends-not-your-servants-ii0t7a6yi) · Beam Bloggers Webring · 0 upvotes · 0 comments --- Tags: [#testing](https://daily.dev/tags/testing), [#c++](https://daily.dev/tags/c++), [#tdd](https://daily.dev/tags/tdd) [View this post on daily.dev](https://daily.dev/posts/introducing-the-trompeloeil-c-mocking-framework-efsv46xan) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Introducing the Trompeloeil C++ mocking framework","url":"https://daily.dev/posts/introducing-the-trompeloeil-c-mocking-framework-efsv46xan","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/introducing-the-trompeloeil-c-mocking-framework-efsv46xan"},"datePublished":"2026-03-16T21:48:30.791Z","dateModified":"2026-03-16T21:53:31.701Z","description":"Trompeloeil is a header-only C++14 mocking framework designed for ease of use without sacrificing expressive power. 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