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test(krnode): add unit tests for new functionality
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| package utils | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "net" | ||
|
|
||
| "github.com/stretchr/testify/mock" | ||
| "github.com/vishvananda/netlink" | ||
| ) | ||
|
|
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| type FakeLocalLinkQuerier struct { | ||
| links []netlink.Link | ||
| addrs []*net.IPNet | ||
| } | ||
|
|
||
| func NewFakeLocalLinkQuerier(addrStrings []string, mtus []int) *FakeLocalLinkQuerier { | ||
| links := make([]netlink.Link, len(addrStrings)) | ||
| for idx := range addrStrings { | ||
| mtu := 1 | ||
| if idx < len(mtus) { | ||
| mtu = mtus[idx] | ||
| } | ||
| linkAttrs := netlink.LinkAttrs{ | ||
| Index: idx, | ||
| MTU: mtu, | ||
| } | ||
| linkDevice := netlink.Device{LinkAttrs: linkAttrs} | ||
| links[idx] = &linkDevice | ||
| } | ||
| addrs := make([]*net.IPNet, len(addrStrings)) | ||
| for idx, addr := range addrStrings { | ||
| ip := net.ParseIP(addr) | ||
| var netMask net.IPMask | ||
| if ip.To4() != nil { | ||
| //nolint:gomnd // Hardcoded value is used for testing purposes | ||
| netMask = net.CIDRMask(24, 32) | ||
| } else { | ||
| //nolint:gomnd // Hardcoded value is used for testing purposes | ||
| netMask = net.CIDRMask(64, 128) | ||
| } | ||
| ipNet := &net.IPNet{ | ||
| IP: ip, | ||
| Mask: netMask, | ||
| } | ||
| addrs[idx] = ipNet | ||
| } | ||
| return &FakeLocalLinkQuerier{ | ||
| links: links, | ||
| addrs: addrs, | ||
| } | ||
| } | ||
|
|
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| func (f *FakeLocalLinkQuerier) LinkList() ([]netlink.Link, error) { | ||
| return f.links, nil | ||
| } | ||
|
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| func (f *FakeLocalLinkQuerier) AddrList(link netlink.Link, family int) ([]netlink.Addr, error) { | ||
| addrs := make([]netlink.Addr, 1) | ||
| addrs[0] = netlink.Addr{IPNet: f.addrs[link.Attrs().Index]} | ||
| if link.Attrs().MTU == 0 { | ||
| return nil, fmt.Errorf("MTU was set to 0 to simulate an error") | ||
| } | ||
| return addrs, nil | ||
| } | ||
|
|
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| type MockLocalLinkQuerier struct { | ||
| mock.Mock | ||
| } | ||
|
|
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| func (m *MockLocalLinkQuerier) LinkList() ([]netlink.Link, error) { | ||
| args := m.Called() | ||
| return args.Get(0).([]netlink.Link), args.Error(1) | ||
| } | ||
|
|
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| func (m *MockLocalLinkQuerier) AddrList(link netlink.Link, family int) ([]netlink.Addr, error) { | ||
| args := m.Called(link, family) | ||
| return args.Get(0).([]netlink.Addr), args.Error(1) | ||
| } |
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