ASSERT_FALSE(9)

💅 ASSERT_FALSE(9) 💅

okay bestie, so this is a page out of the Kernel API Manual — yes, the kernel, that big scary thing — and it's actually a tiny little baby of a page, so you'll be fine, I promise 🫶

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✨ NAME ✨

ASSERT_FALSE —

and then… literally nothing 😭 the description slot is empty. no cap, the original leaves it blank. so the name is just the name, and the vibes do the rest 💀

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✨ SYNOPSIS ✨

ASSERT_FALSE (seen );

that's it. that's the whole call. one argument, one job, and it's the moment of truth 🎀

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✨ ARGUMENTS ✨

• seen — the measured value. like, the actual thing you peeped at and want to check up on 👀 that's the whole game.

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✨ DESCRIPTION ✨

so here's the tea, and it's a short one:

ASSERT_FALSE(measured): measured == 0

translation: you hand over your measured value, and this macro is lowkey asserting that it equals 0 — zero, nothing, the void, empty 🕳️ if it's 0 you're slaying; if it's anything else, that's a whole different conversation bestie 😭

⚠️ heads up: the equality is written exactly as the original puts it — measured == 0 — so don't go reinterpreting it, mwah 💋

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🌈 SEE ALSO 🌈

the whole group chat, fr fr — everyone's here 🫶

• the kernel file ./tools/testing/selftests/kselftest_harness.h example(9)
• TH_LOG(9)
• SKIP(9)
• TEST(9)
• TEST_SIGNAL(9)
• FIXTURE_DATA(9)
• FIXTURE(9)
• FIXTURE_SETUP(9)
• FIXTURE_TEARDOWN(9)
• FIXTURE_TEARDOWN_PARENT(9)
• FIXTURE_VARIANT(9)
• FIXTURE_VARIANT_ADD(9)
• TEST_F(9)
• TEST_HARNESS_MAIN(9)
• operators(9)
• ASSERT_EQ(9)
• ASSERT_NE(9)
• ASSERT_LT(9)
• ASSERT_LE(9)
• ASSERT_GT(9)
• ASSERT_GE(9)
• ASSERT_NULL(9)
• ASSERT_TRUE(9)
• ASSERT_STREQ(9)
• ASSERT_STRNE(9)
• EXPECT_EQ(9)
• EXPECT_NE(9)
• EXPECT_LT(9)
• EXPECT_LE(9)
• EXPECT_GT(9)
• EXPECT_GE(9)
• EXPECT_NULL(9)
• EXPECT_TRUE(9)
• EXPECT_FALSE(9)
• EXPECT_STREQ(9)
• EXPECT_STRNE(9)
• XFAIL_ADD(9)

like, the entire ASSERT and EXPECT family reunion plus the fixture crowd — iconique 👑

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✨ cute sign-off time ✨

this little cutie lives under ./tools/testing/selftests (yep, that's the source/version bit 🌸), stamped October 2026 📅, and it's page ASSERT_FALSE(9) of the Kernel API Manual of course 💖

that's the whole page bestie — short, sweet, and == 0. periodt. 💅✨