EXPECT_FALSE(9)

💅 EXPECT_FALSE(9) 💅

ok so bestie, welcome to EXPECT_FALSE — a page from the Kernel API Manual (that's the manual name, we're folding it in here, you're welcome 🫶). Buckle up, this one is short but it matters.

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✨ NAME ✨

EXPECT_FALSE —

no cap, the original literally gives you nothing after that dash. just the name and vibes. it's giving mysterious. 🙈

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✨ SYNOPSIS ✨

EXPECT_FALSE (seen );

that's it. that's the whole call. she's little but she's fierce. 🎀

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✨ ARGUMENTS ✨

• seen — the measured value. like, the thing you actually looked at and went "hmm what is this". that's seen. 💅

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✨ DESCRIPTION ✨

ok so here's the whole entire lore:

EXPECT_FALSE(measured): 0 == measured

so you hand it a measured value, and the expectation is that it equals 0. that's it. zero. zilch. nada. if you were expecting a 0, this is your girl. she's literally checking 0 == measured and nothing else. simple, iconic, no notes. 👑

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🌈 SEE ALSO 🌈

the whole friend group, fr fr — go read these too:

• 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_FALSE(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_STREQ(9)
• EXPECT_STRNE(9)
• XFAIL_ADD(9)

like, the entire selftest harness squad showed up to the party. obsessed. 🔥

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and that's the page!! mwah 💋 — this lil doc lives under ./tools/testing/selftests and it's stamped October 2026, so go forth and expect your falses, bestie. 🦋✨