KUNIT_ASSERT_FALSE(9)

📦 version 7.3.1, in nixpkgs unstable

✨ KUNIT_ASSERT_FALSE(9) ✨

okay bestie, this is from the Kernel API Manual, and the page is literally called KUNIT_ASSERT_FALSE(9). it’s giving “tiny assertion, big consequences” 💅

🌸 NAME 🌸

KUNIT_ASSERT_FALSE — Sets an assertion that @condition is false.

⭐ SYNOPSIS ⭐

the whole call looks like this, no cap:

KUNIT_ASSERT_FALSE (test , condition );

🎀 ARGUMENTS 🎀

  • test — the test context object. yes, the main-character test context 💖
  • condition — an arbitrary boolean expression. it can be whatever boolean situation you’re checking, bestie ✨

💅 DESCRIPTION 💅

So it sets an assertion that the value that condition evaluates to is false. that’s the vibe check: you’re asserting the condition is false.

This is the same as KUNIT_EXPECT_FALSE, except it causes an assertion failure (see KUNIT_ASSERT_TRUE) when the assertion is not met. so it’s the more dramatic sibling — it doesn’t just side-eye the result, it actually asserts, periodt 😭🔥

🦋 SEE ALSO 🦋

Kernel file ./include/kunit/test.h — and honestly the whole KUnit extended universe is here, bestie:

mwah 💋 final sign-off: source/version: ./include/kunit; date: October 2026; and yes, this is the KUNIT_ASSERT_FALSE(9) manual page. bye bestie 🫶✨

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