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package ipamutils
import (
"net"
"testing"
"gotest.tools/v3/assert"
is "gotest.tools/v3/assert/cmp"
)
func initBroadPredefinedNetworks() []*net.IPNet {
pl := make([]*net.IPNet, 0, 31)
mask := []byte{255, 255, 0, 0}
for i := 17; i < 32; i++ {
pl = append(pl, &net.IPNet{IP: []byte{172, byte(i), 0, 0}, Mask: mask})
}
mask20 := []byte{255, 255, 240, 0}
for i := 0; i < 16; i++ {
pl = append(pl, &net.IPNet{IP: []byte{192, 168, byte(i << 4), 0}, Mask: mask20})
}
return pl
}
func initGranularPredefinedNetworks() []*net.IPNet {
pl := make([]*net.IPNet, 0, 256*256)
mask := []byte{255, 255, 255, 0}
for i := 0; i < 256; i++ {
for j := 0; j < 256; j++ {
pl = append(pl, &net.IPNet{IP: []byte{10, byte(i), byte(j), 0}, Mask: mask})
}
}
return pl
}
func initGlobalScopeNetworks() []*net.IPNet {
pl := make([]*net.IPNet, 0, 256*256)
mask := []byte{255, 255, 255, 0}
for i := 0; i < 256; i++ {
for j := 0; j < 256; j++ {
pl = append(pl, &net.IPNet{IP: []byte{30, byte(i), byte(j), 0}, Mask: mask})
}
}
return pl
}
func TestDefaultNetwork(t *testing.T) {
for _, nw := range GetGlobalScopeDefaultNetworks() {
if ones, bits := nw.Mask.Size(); bits != 32 || ones != 24 {
t.Fatalf("Unexpected size for network in granular list: %v", nw)
}
}
for _, nw := range GetLocalScopeDefaultNetworks() {
if ones, bits := nw.Mask.Size(); bits != 32 || (ones != 20 && ones != 16) {
t.Fatalf("Unexpected size for network in broad list: %v", nw)
}
}
originalBroadNets := initBroadPredefinedNetworks()
m := make(map[string]bool)
for _, v := range originalBroadNets {
m[v.String()] = true
}
for _, nw := range GetLocalScopeDefaultNetworks() {
_, ok := m[nw.String()]
assert.Check(t, ok)
delete(m, nw.String())
}
assert.Check(t, is.Len(m, 0))
originalGranularNets := initGranularPredefinedNetworks()
m = make(map[string]bool)
for _, v := range originalGranularNets {
m[v.String()] = true
}
for _, nw := range GetGlobalScopeDefaultNetworks() {
_, ok := m[nw.String()]
assert.Check(t, ok)
delete(m, nw.String())
}
assert.Check(t, is.Len(m, 0))
}
func TestConfigGlobalScopeDefaultNetworks(t *testing.T) {
err := ConfigGlobalScopeDefaultNetworks([]*NetworkToSplit{{"30.0.0.0/8", 24}})
assert.NilError(t, err)
originalGlobalScopeNetworks := initGlobalScopeNetworks()
m := make(map[string]bool)
for _, v := range originalGlobalScopeNetworks {
m[v.String()] = true
}
for _, nw := range GetGlobalScopeDefaultNetworks() {
_, ok := m[nw.String()]
assert.Check(t, ok)
delete(m, nw.String())
}
assert.Check(t, is.Len(m, 0))
}
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