kubernetes/test/integration/servicecidr/servicecidr_test.go

func TestServiceAllocNewServiceCIDR(t *testing.T) { … }

// A ServiceCIDR can be deleted if there are no orphan IPs or if the existing IPs are contained in other ServiceCIDR
// that is not being deleted.
// The test starts the apiserver with the range "192.168.0.0/29"
// Create Services to fill the range
// Creates a new ServiceCIDR cidr1 with the same range as the one defined in the apiserver
// Deletes cidr1 object will work since its range is covered by the default ServiceCIDR created by the apiserver flags
// Creates a new cidr2 with a different range than cidr1
// Creates a new service so it picks an IPAddress on this range because "192.168.0.0/29" is full at this point
// Creates a new cidr3 that contains cidr2
// Deletes cidr2 since it is covered by cidr3
// Tries to delete cidr3 but is blocked since there is an IPAddress
// Deletes the Service with the IPAddress blocking the deletion
// cidr3 must not exist at this point
func TestServiceCIDRDeletion(t *testing.T) { … }

func makeServiceCIDR(name, primary, secondary string) *networkingv1beta1.ServiceCIDR { … }

func makeService(name string) *v1.Service { … }

// returns true of the ServiceCIDRConditionReady is true
func isServiceCIDRReady(serviceCIDR *networkingv1beta1.ServiceCIDR) bool { … }

func cidrContainsIP(cidr, ip string) bool { … }