gvisor.dev/gvisor@v0.0.0-20240520182842-f9d4d51c7e0f/test/util/posix_error_test.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 "test/util/posix_error.h"
    16  
    17  #include <errno.h>
    18  
    19  #include "gmock/gmock.h"
    20  #include "gtest/gtest.h"
    21  
    22  namespace gvisor {
    23  namespace testing {
    24  
    25  namespace {
    26  
    27  TEST(PosixErrorTest, PosixError) {
    28    auto err = PosixError(EAGAIN);
    29    EXPECT_THAT(err, PosixErrorIs(EAGAIN, ""));
    30  }
    31  
    32  TEST(PosixErrorTest, PosixErrorOrPosixError) {
    33    auto err = PosixErrorOr<std::nullptr_t>(PosixError(EAGAIN));
    34    EXPECT_THAT(err, PosixErrorIs(EAGAIN, ""));
    35  }
    36  
    37  TEST(PosixErrorTest, PosixErrorOrNullptr) {
    38    auto err = PosixErrorOr<std::nullptr_t>(nullptr);
    39    EXPECT_TRUE(err.ok());
    40    EXPECT_NO_ERRNO(err);
    41  }
    42  
    43  }  // namespace
    44  
    45  }  // namespace testing
    46  }  // namespace gvisor