github.com/GoogleContainerTools/kaniko@v1.23.0/pkg/util/syscall_credentials_test.go (about)

     1  /*
     2  Copyright 2020 Google LLC
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package util
    18  
    19  import (
    20  	"fmt"
    21  	"strconv"
    22  	"syscall"
    23  	"testing"
    24  
    25  	"github.com/GoogleContainerTools/kaniko/testutil"
    26  )
    27  
    28  func TestSyscallCredentials(t *testing.T) {
    29  	currentUser := testutil.GetCurrentUser(t)
    30  	uid, _ := strconv.ParseUint(currentUser.Uid, 10, 32)
    31  	currentUserUID32 := uint32(uid)
    32  	gid, _ := strconv.ParseUint(currentUser.Gid, 10, 32)
    33  	currentUserGID32 := uint32(gid)
    34  
    35  	currentUserGroupIDsU32 := []uint32{}
    36  	currentUserGroupIDs, _ := currentUser.GroupIds()
    37  	for _, id := range currentUserGroupIDs {
    38  		id32, _ := strconv.ParseUint(id, 10, 32)
    39  		currentUserGroupIDsU32 = append(currentUserGroupIDsU32, uint32(id32))
    40  	}
    41  
    42  	type args struct {
    43  		userStr string
    44  	}
    45  	tests := []struct {
    46  		name    string
    47  		args    args
    48  		want    *syscall.Credential
    49  		wantErr bool
    50  	}{
    51  		{
    52  			name: "non-existing user without group",
    53  			args: args{
    54  				userStr: "helloworld-user",
    55  			},
    56  			wantErr: true,
    57  		},
    58  		{
    59  			name: "non-existing uid without group",
    60  			args: args{
    61  				userStr: "50000",
    62  			},
    63  			want: &syscall.Credential{
    64  				Uid: 50000,
    65  				// because fallback is enabled
    66  				Gid:    50000,
    67  				Groups: []uint32{},
    68  			},
    69  		},
    70  		{
    71  			name: "non-existing uid with existing gid",
    72  			args: args{
    73  				userStr: fmt.Sprintf("50000:%d", currentUserGID32),
    74  			},
    75  			want: &syscall.Credential{
    76  				Uid:    50000,
    77  				Gid:    currentUserGID32,
    78  				Groups: []uint32{},
    79  			},
    80  		},
    81  		{
    82  			name: "existing username with non-existing gid",
    83  			args: args{
    84  				userStr: fmt.Sprintf("%s:50000", currentUser.Username),
    85  			},
    86  			want: &syscall.Credential{
    87  				Uid:    currentUserUID32,
    88  				Gid:    50000,
    89  				Groups: currentUserGroupIDsU32,
    90  			},
    91  		},
    92  	}
    93  	for _, tt := range tests {
    94  		t.Run(tt.name, func(t *testing.T) {
    95  			got, err := SyscallCredentials(tt.args.userStr)
    96  			testutil.CheckErrorAndDeepEqual(t, tt.wantErr, err, tt.want, got)
    97  		})
    98  	}
    99  }