Add core modules (SSH args parser, cache, resolver, NetBox client) with tests

internal/resolver/primary_ip_test.go

@@ -0,0 +1,91 @@
+package resolver
+
+import (
+	"context"
+	"testing"
+
+	"git.zb-server.de/Sebi/ssh-netbox-wrapper/internal/netbox"
+)
+
+func TestPrimaryIPStrategy_Name(t *testing.T) {
+	s := &PrimaryIPStrategy{}
+	if s.Name() != "primary_ip" {
+		t.Errorf("Name: got %q, want %q", s.Name(), "primary_ip")
+	}
+}
+
+func TestPrimaryIPStrategy_IPv4(t *testing.T) {
+	s := &PrimaryIPStrategy{}
+	e := &netbox.HostEntry{PrimaryIP4: "10.0.0.1", PrimaryIP6: "::1"}
+	ip, err := s.Resolve(context.Background(), e, nil)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if ip != "10.0.0.1" {
+		t.Errorf("got %q, want IPv4 %q", ip, "10.0.0.1")
+	}
+}
+
+func TestPrimaryIPStrategy_IPv6Fallback(t *testing.T) {
+	s := &PrimaryIPStrategy{}
+	e := &netbox.HostEntry{PrimaryIP6: "::1"}
+	ip, err := s.Resolve(context.Background(), e, nil)
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if ip != "::1" {
+		t.Errorf("got %q, want IPv6 %q", ip, "::1")
+	}
+}
+
+func TestPrimaryIPStrategy_NoIP(t *testing.T) {
+	s := &PrimaryIPStrategy{}
+	_, err := s.Resolve(context.Background(), &netbox.HostEntry{}, nil)
+	if err != ErrNoIP {
+		t.Errorf("got %v, want ErrNoIP", err)
+	}
+}
+
+func TestManagementSubnetStrategy_Name(t *testing.T) {
+	s, _ := NewManagementSubnetStrategy([]string{"10.0.0.0/8"})
+	if s.Name() != "management_subnet" {
+		t.Errorf("Name: got %q, want %q", s.Name(), "management_subnet")
+	}
+}
+
+func TestManagementSubnetStrategy_InvalidCIDR(t *testing.T) {
+	_, err := NewManagementSubnetStrategy([]string{"not-a-cidr"})
+	if err == nil {
+		t.Error("invalid CIDR should return an error")
+	}
+}
+
+func TestManagementSubnetStrategy_EmptyCIDRs(t *testing.T) {
+	s, _ := NewManagementSubnetStrategy([]string{})
+	_, err := s.Resolve(context.Background(), &netbox.HostEntry{}, nil)
+	if err != ErrNoIP {
+		t.Errorf("empty subnets should return ErrNoIP, got %v", err)
+	}
+}
+
+func TestManagementSubnetStrategy_MultipleCIDRs(t *testing.T) {
+	_, err := NewManagementSubnetStrategy([]string{"10.0.0.0/8", "172.16.0.0/12", "192.168.0.0/16"})
+	if err != nil {
+		t.Fatalf("valid CIDRs should not error: %v", err)
+	}
+}
+
+func TestInterfaceNameStrategy_Name(t *testing.T) {
+	s := &InterfaceNameStrategy{name: "mgmt0"}
+	if s.Name() != "interface_name" {
+		t.Errorf("Name: got %q, want %q", s.Name(), "interface_name")
+	}
+}
+
+func TestInterfaceNameStrategy_UnknownKind(t *testing.T) {
+	s := &InterfaceNameStrategy{name: "eth0"}
+	_, err := s.Resolve(context.Background(), &netbox.HostEntry{Kind: "unknown"}, nil)
+	if err == nil {
+		t.Error("unknown kind should return an error")
+	}
+}