31 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9#include "hdr/errno_macros.h"10#include "src/unistd/getentropy.h"11#include "test/UnitTest/ErrnoCheckingTest.h"12#include "test/UnitTest/ErrnoSetterMatcher.h"13#include "test/UnitTest/Test.h"14 15using namespace LIBC_NAMESPACE::testing::ErrnoSetterMatcher;16using LlvmLibcUnistdGetEntropyTest = LIBC_NAMESPACE::testing::ErrnoCheckingTest;17 18TEST_F(LlvmLibcUnistdGetEntropyTest, LengthTooLong) {19 char buf[1024];20 ASSERT_THAT(LIBC_NAMESPACE::getentropy(buf, 257), Fails(EIO));21}22 23TEST_F(LlvmLibcUnistdGetEntropyTest, SmokeTest) {24 char buf[256];25 ASSERT_THAT(LIBC_NAMESPACE::getentropy(buf, 256), Succeeds());26}27 28TEST_F(LlvmLibcUnistdGetEntropyTest, OtherError) {29 ASSERT_THAT(LIBC_NAMESPACE::getentropy(nullptr, 1), Fails(EIO));30}31