github.com/SagerNet/gvisor@v0.0.0-20210707092255-7731c139d75c/pkg/tcpip/link/rawfile/errors_test.go (about)

     1  // Copyright 2020 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  // +build linux
    16  
    17  package rawfile
    18  
    19  import (
    20  	"testing"
    21  
    22  	"github.com/google/go-cmp/cmp"
    23  	"golang.org/x/sys/unix"
    24  	"github.com/SagerNet/gvisor/pkg/tcpip"
    25  )
    26  
    27  func TestTranslateErrno(t *testing.T) {
    28  	for _, test := range []struct {
    29  		errno      unix.Errno
    30  		translated tcpip.Error
    31  	}{
    32  		{
    33  			errno:      unix.Errno(0),
    34  			translated: &tcpip.ErrInvalidEndpointState{},
    35  		},
    36  		{
    37  			errno:      unix.Errno(maxErrno),
    38  			translated: &tcpip.ErrInvalidEndpointState{},
    39  		},
    40  		{
    41  			errno:      unix.Errno(514),
    42  			translated: &tcpip.ErrInvalidEndpointState{},
    43  		},
    44  		{
    45  			errno:      unix.EEXIST,
    46  			translated: &tcpip.ErrDuplicateAddress{},
    47  		},
    48  	} {
    49  		got := TranslateErrno(test.errno)
    50  		if diff := cmp.Diff(test.translated, got); diff != "" {
    51  			t.Errorf("unexpected result from TranslateErrno(%q), (-want, +got):\n%s", test.errno, diff)
    52  		}
    53  	}
    54  }