github.com/SagerNet/gvisor@v0.0.0-20210707092255-7731c139d75c/test/syscalls/linux/socket_unix_dgram_non_blocking.cc (about)

     1  // Copyright 2018 The gVisor Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  #include <stdio.h>
    16  #include <sys/un.h>
    17  
    18  #include "gtest/gtest.h"
    19  #include "test/syscalls/linux/socket_test_util.h"
    20  #include "test/syscalls/linux/unix_domain_socket_test_util.h"
    21  #include "test/util/test_util.h"
    22  
    23  namespace gvisor {
    24  namespace testing {
    25  
    26  namespace {
    27  
    28  // Test fixture for tests that apply to pairs of connected non-blocking dgram
    29  // unix sockets.
    30  using NonBlockingDgramUnixSocketPairTest = SocketPairTest;
    31  
    32  TEST_P(NonBlockingDgramUnixSocketPairTest, ReadOneSideClosed) {
    33    if (IsRunningOnGvisor()) {
    34      // FIXME(b/70803293): gVisor datagram sockets return 0 instead of
    35      // EAGAIN.
    36      return;
    37    }
    38  
    39    auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
    40    ASSERT_THAT(close(sockets->release_first_fd()), SyscallSucceeds());
    41    char data[10] = {};
    42    ASSERT_THAT(read(sockets->second_fd(), data, sizeof(data)),
    43                SyscallFailsWithErrno(EAGAIN));
    44  }
    45  
    46  INSTANTIATE_TEST_SUITE_P(
    47      NonBlockingDgramUnixSockets, NonBlockingDgramUnixSocketPairTest,
    48      ::testing::ValuesIn(IncludeReversals(std::vector<SocketPairKind>{
    49          UnixDomainSocketPair(SOCK_DGRAM | SOCK_NONBLOCK),
    50          FilesystemBoundUnixDomainSocketPair(SOCK_DGRAM | SOCK_NONBLOCK),
    51          AbstractBoundUnixDomainSocketPair(SOCK_DGRAM | SOCK_NONBLOCK),
    52      })));
    53  
    54  }  // namespace
    55  
    56  }  // namespace testing
    57  }  // namespace gvisor