dnscontrol/pkg/dnsgraph/dnsgraph_test.go
Vincent Hagen e32bdc053f
NEW FEATURE: Order changes based on the record dependencies (#2419)
Co-authored-by: Tom Limoncelli <tlimoncelli@stackoverflow.com>
Co-authored-by: Tom Limoncelli <tal@whatexit.org>
2023-08-29 14:00:09 -04:00

68 lines
3.2 KiB
Go

package dnsgraph_test
import (
"testing"
"github.com/StackExchange/dnscontrol/v4/pkg/dnsgraph"
"github.com/StackExchange/dnscontrol/v4/pkg/dnsgraph/testutils"
"github.com/stretchr/testify/assert"
)
func Test_CreateGraph(t *testing.T) {
changes := []testutils.StubRecord{
{NameFQDN: "example.com", Dependencies: []dnsgraph.Dependency{}},
{NameFQDN: "mail.example.com", Dependencies: []dnsgraph.Dependency{{Type: dnsgraph.ForwardDependency, NameFQDN: "example.com"}, {Type: dnsgraph.ForwardDependency, NameFQDN: "someserver.example.com"}}},
{NameFQDN: "*.hq.example.com", Dependencies: []dnsgraph.Dependency{{Type: dnsgraph.ForwardDependency, NameFQDN: "example.com"}}},
{NameFQDN: "someserver.example.com", Dependencies: []dnsgraph.Dependency{{Type: dnsgraph.ForwardDependency, NameFQDN: "a.hq.example.com"}, {Type: dnsgraph.ForwardDependency, NameFQDN: "b.hq.example.com"}}},
}
graph := dnsgraph.CreateGraph(testutils.StubRecordsAsGraphable(changes))
nodes := graph.Tree.Get("example.com")
assert.Len(t, nodes, 1)
assert.Len(t, nodes[0].Edges, 2)
assert.Equal(t, "mail.example.com", nodes[0].Edges[0].Node.Data.GetName())
assert.Equal(t, dnsgraph.IncomingEdge, nodes[0].Edges[0].Direction)
assert.Equal(t, "*.hq.example.com", nodes[0].Edges[1].Node.Data.GetName())
nodes = graph.Tree.Get("someserver.example.com")
assert.Len(t, nodes, 1)
// *.hq.example.com is added once
assert.Len(t, nodes[0].Edges, 2)
assert.Equal(t, "mail.example.com", nodes[0].Edges[0].Node.Data.GetName())
assert.Equal(t, dnsgraph.IncomingEdge, nodes[0].Edges[0].Direction)
assert.Equal(t, "*.hq.example.com", nodes[0].Edges[1].Node.Data.GetName())
assert.Equal(t, dnsgraph.OutgoingEdge, nodes[0].Edges[1].Direction)
nodes = graph.Tree.Get("a.hq.example.com")
assert.Len(t, nodes, 1)
// someserver.example.com is added once
assert.Len(t, nodes[0].Edges, 2)
assert.Equal(t, "example.com", nodes[0].Edges[0].Node.Data.GetName())
assert.Equal(t, dnsgraph.OutgoingEdge, nodes[0].Edges[0].Direction)
assert.Equal(t, "someserver.example.com", nodes[0].Edges[1].Node.Data.GetName())
assert.Equal(t, dnsgraph.IncomingEdge, nodes[0].Edges[1].Direction)
}
func Test_RemoveNode(t *testing.T) {
changes := []testutils.StubRecord{
{NameFQDN: "example.com", Dependencies: []dnsgraph.Dependency{}},
{NameFQDN: "mail.example.com", Dependencies: []dnsgraph.Dependency{{Type: dnsgraph.ForwardDependency, NameFQDN: "example.com"}, {Type: dnsgraph.ForwardDependency, NameFQDN: "someserver.example.com"}}},
{NameFQDN: "*.hq.example.com", Dependencies: []dnsgraph.Dependency{{Type: dnsgraph.ForwardDependency, NameFQDN: "example.com"}}},
{NameFQDN: "someserver.example.com", Dependencies: []dnsgraph.Dependency{{Type: dnsgraph.ForwardDependency, NameFQDN: "a.hq.example.com"}, {Type: dnsgraph.ForwardDependency, NameFQDN: "b.hq.example.com"}}},
}
graph := dnsgraph.CreateGraph(testutils.StubRecordsAsGraphable(changes))
graph.RemoveNode(graph.Tree.Get("example.com")[0])
// example.com change has been removed
nodes := graph.Tree.Get("example.com")
assert.Len(t, nodes, 0)
nodes = graph.Tree.Get("a.hq.example.com")
assert.Len(t, nodes, 1)
assert.Len(t, nodes[0].Edges, 1)
assert.Equal(t, "someserver.example.com", nodes[0].Edges[0].Node.Data.GetName())
}