// Copyright 2018 The gVisor Authors. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. #include <stdint.h> #include <sys/syscall.h> #include <unistd.h> #include "test/util/test_util.h" namespace gvisor { namespace testing { TEST(BrkTest, BrkSyscallReturnsOldBrkOnFailure) { auto old_brk = sbrk(0); EXPECT_THAT(syscall(SYS_brk, reinterpret_cast<void*>(-1)), SyscallSucceedsWithValue(reinterpret_cast<uintptr_t>(old_brk))); } } // namespace testing } // namespace gvisor