1 //===-- Unittests for getentropy ------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "hdr/errno_macros.h" 10 #include "src/unistd/getentropy.h" 11 #include "test/UnitTest/ErrnoSetterMatcher.h" 12 #include "test/UnitTest/Test.h" 13 14 using namespace LIBC_NAMESPACE::testing::ErrnoSetterMatcher; 15 16 TEST(LlvmLibcUnistdGetEntropyTest, LengthTooLong) { 17 char buf[1024]; 18 ASSERT_THAT(LIBC_NAMESPACE::getentropy(buf, 257), Fails(EIO)); 19 } 20 21 TEST(LlvmLibcUnistdGetEntropyTest, SmokeTest) { 22 char buf[256]; 23 ASSERT_THAT(LIBC_NAMESPACE::getentropy(buf, 256), Succeeds()); 24 } 25 26 TEST(LlvmLibcUnistdGetEntropyTest, OtherError) { 27 ASSERT_THAT(LIBC_NAMESPACE::getentropy(nullptr, 1), Fails(EIO)); 28 } 29