github.com/gravitational/teleport/api@v0.0.0-20240507183017-3110591cbafc/utils/aws/ec2_test.go (about)

     1  /*
     2  Copyright 2022 Gravitational, Inc.
     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 aws
    18  
    19  import (
    20  	"testing"
    21  
    22  	"github.com/google/uuid"
    23  	"github.com/stretchr/testify/assert"
    24  )
    25  
    26  func TestIsEC2NodeID(t *testing.T) {
    27  	// EC2 Node IDs are {AWS account ID}-{EC2 resource ID} eg:
    28  	//   123456789012-i-1234567890abcdef0
    29  	// AWS account ID is always a 12 digit number, see
    30  	//   https://docs.aws.amazon.com/general/latest/gr/acct-identifiers.html
    31  	// EC2 resource ID is i-{8 or 17 hex digits}, see
    32  	//   https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/resource-ids.html
    33  	testCases := []struct {
    34  		name     string
    35  		id       string
    36  		expected bool
    37  	}{
    38  		{
    39  			name:     "8 digit",
    40  			id:       "123456789012-i-12345678",
    41  			expected: true,
    42  		},
    43  		{
    44  			name:     "17 digit",
    45  			id:       "123456789012-i-1234567890abcdef0",
    46  			expected: true,
    47  		},
    48  		{
    49  			name:     "foo",
    50  			id:       "foo",
    51  			expected: false,
    52  		},
    53  		{
    54  			name:     "uuid",
    55  			id:       uuid.NewString(),
    56  			expected: false,
    57  		},
    58  	}
    59  	for _, tc := range testCases {
    60  		t.Run(tc.name, func(t *testing.T) {
    61  			assert.Equal(t, tc.expected, IsEC2NodeID(tc.id))
    62  		})
    63  	}
    64  }