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…ng-dupes Add VLAN management with overlap and re-use checks
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,214 @@ | ||
| /* | ||
| MIT License | ||
| (C) Copyright 2022-2024 Hewlett Packard Enterprise Development LP | ||
| Permission is hereby granted, free of charge, to any person obtaining a | ||
| copy of this software and associated documentation files (the "Software"), | ||
| to deal in the Software without restriction, including without limitation | ||
| the rights to use, copy, modify, merge, publish, distribute, sublicense, | ||
| and/or sell copies of the Software, and to permit persons to whom the | ||
| Software is furnished to do so, subject to the following conditions: | ||
| The above copyright notice and this permission notice shall be included | ||
| in all copies or substantial portions of the Software. | ||
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | ||
| THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR | ||
| OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | ||
| ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | ||
| OTHER DEALINGS IN THE SOFTWARE. | ||
| */ | ||
|
|
||
| package networking | ||
|
|
||
| import ( | ||
| "errors" | ||
| "testing" | ||
|
|
||
| "github.com/stretchr/testify/suite" | ||
| ) | ||
|
|
||
| type NetworksTestSuite struct { | ||
| suite.Suite | ||
| } | ||
|
|
||
| func (suite *NetworksTestSuite) TestIsVlanAllocatedBadVlans() { | ||
| tests := []struct { | ||
| vlan int16 | ||
| expectedBool bool | ||
| expectedError error | ||
| }{ | ||
| { | ||
| // VLAN out of range too small | ||
| vlan: -1, | ||
| expectedBool: true, | ||
| expectedError: errors.New("VLAN out of range"), | ||
| }, | ||
| { | ||
| // VLAN out of range too big | ||
| vlan: 4096, | ||
| expectedBool: true, | ||
| expectedError: errors.New("VLAN out of range"), | ||
| }, | ||
| } | ||
|
|
||
| for _, test := range tests { | ||
| val, err := IsVlanAllocated(test.vlan) | ||
| suite.Equal( | ||
| val, | ||
| test.expectedBool, | ||
| ) | ||
| suite.Equal( | ||
| test.expectedError, | ||
| err, | ||
| ) | ||
| } | ||
| } | ||
|
|
||
| func (suite *NetworksTestSuite) TestAllocateVlanBadVlans() { | ||
| tests := []struct { | ||
| vlan int16 | ||
| expectedError error | ||
| }{ | ||
| { | ||
| // VLAN out of range too small | ||
| vlan: -1, | ||
| expectedError: errors.New("VLAN out of range"), | ||
| }, | ||
| { | ||
| // VLAN out of range too big | ||
| vlan: 4096, | ||
| expectedError: errors.New("VLAN out of range"), | ||
| }, | ||
| { | ||
| // VLAN 7 not allocated and this should work | ||
| vlan: 7, | ||
| expectedError: nil, | ||
| }, | ||
| } | ||
|
|
||
| for _, test := range tests { | ||
| err := AllocateVlan(test.vlan) | ||
| suite.Equal( | ||
| test.expectedError, | ||
| err, | ||
| ) | ||
| } | ||
| } | ||
|
|
||
| func (suite *NetworksTestSuite) TestVlanAllocate() { | ||
| // Allocate VLAN 2 the first time should be success | ||
| var vlan int16 = 2 | ||
| suite.Equal( | ||
| nil, | ||
| AllocateVlan(vlan), | ||
| ) | ||
| //Allocate VLAN 2 the 2nd time should fail as it's already used | ||
| suite.Equal( | ||
| errors.New("VLAN already used"), | ||
| AllocateVlan(vlan), | ||
| ) | ||
| } | ||
|
|
||
| func (suite *NetworksTestSuite) TestVlanAllocateRange() { | ||
| // Bad start and end range | ||
| suite.Equal( | ||
| errors.New("VLAN out of range"), | ||
| AllocateVlanRange(4092, 4099), | ||
| ) | ||
|
|
||
| var startVlan int16 = 200 | ||
| var endVlan int16 = 299 | ||
|
|
||
| // Bad start and end range | ||
| suite.Equal( | ||
| errors.New("VLAN range is bad - start is larger than end"), | ||
| AllocateVlanRange(endVlan, startVlan), | ||
| ) | ||
|
|
||
| // VLANs already in use in the range cannot be allocated, including ends | ||
| AllocateVlan(200) | ||
| AllocateVlan(207) | ||
| AllocateVlan(213) | ||
| AllocateVlan(299) | ||
| suite.Equal( | ||
| errors.New("VLANs already used: [200 207 213 299]"), | ||
| AllocateVlanRange(startVlan, endVlan), | ||
| ) | ||
|
|
||
| // Successfully allocate a range of VLANs | ||
| FreeVlan(200) | ||
| FreeVlan(207) | ||
| FreeVlan(213) | ||
| FreeVlan(299) | ||
| suite.Equal( | ||
| nil, | ||
| AllocateVlanRange(startVlan, endVlan), | ||
| ) | ||
| } | ||
|
|
||
| func (suite *NetworksTestSuite) TestVlanFree() { | ||
| // Allocate VLAN 4 | ||
| var vlan int16 = 4 | ||
| suite.Equal( | ||
| nil, | ||
| AllocateVlan(vlan), | ||
| ) | ||
|
|
||
| // Deallocate VLAN 4 the 1st time should succeed | ||
| suite.Equal( | ||
| nil, | ||
| FreeVlan(vlan), | ||
| ) | ||
|
|
||
| // Deallocate VLAN 4 the 2nd time should succeed | ||
| suite.Equal( | ||
| nil, | ||
| FreeVlan(vlan), | ||
| ) | ||
| } | ||
|
|
||
| func (suite *NetworksTestSuite) TestVlanFreeRange() { | ||
| var startVlan int16 = 400 | ||
| var endVlan int16 = 499 | ||
| suite.Equal( | ||
| errors.New("VLAN range is bad - start is larger than end"), | ||
| FreeVlanRange(endVlan, startVlan), | ||
| ) | ||
|
|
||
| AllocateVlan(startVlan) | ||
| AllocateVlan(endVlan) | ||
| // Deallocate the range the first time - should succeed | ||
| suite.Equal( | ||
| nil, | ||
| FreeVlanRange(startVlan, endVlan), | ||
| ) | ||
|
|
||
| startAllocation, _ := IsVlanAllocated(startVlan) | ||
| suite.Equal( | ||
| false, | ||
| startAllocation, | ||
| ) | ||
|
|
||
| endAllocation, _ := IsVlanAllocated(endVlan) | ||
| suite.Equal( | ||
| false, | ||
| endAllocation, | ||
| ) | ||
|
|
||
| // Deallocate the range the second time - should still succeed | ||
| suite.Equal( | ||
| nil, | ||
| FreeVlanRange(startVlan, endVlan), | ||
| ) | ||
|
|
||
| } | ||
| func TestNetworksTestSuite(t *testing.T) { | ||
| suite.Run( | ||
| t, | ||
| new(NetworksTestSuite), | ||
| ) | ||
| } |