mesh-sdk/go/catalogue/provided_test.go

package catalogue_test

import (
	"encoding/json"
	"testing"

	"git.novox.be/novox/mesh-sdk/go/catalogue"
	"git.novox.be/novox/mesh-sdk/go/overlay"
)

// The manifests the control plane actually ships, resolved.
//
// Written because the earlier tests built their own manifests and passed while the real one was
// missing a claim — a whole mechanism could have been absent from what ships and every test would
// still have been green.

func provided(t *testing.T) map[string]catalogue.Manifest {
	t.Helper()
	out := map[string]catalogue.Manifest{}
	for _, raw := range []map[string]any{
		overlay.Manifest(),
	} {
		b, err := json.Marshal(raw)
		if err != nil {
			t.Fatal(err)
		}
		m, err := catalogue.Decode(b)
		if err != nil {
			t.Fatalf("a manifest this control plane ships is not valid: %v", err)
		}
		out[m.Module] = m
	}
	return out
}

func TestTheControlPlaneShipsNoNetworkingBundle(t *testing.T) {
	// ADR 0226: one module for the one private network. A bundle shipped beside it again would be
	// a second name every machine carries for the same thing.
	shipped := provided(t)
	if len(shipped) != 1 {
		t.Fatalf("the control plane ships %d modules, want only %s", len(shipped), overlay.Name)
	}
	if _, ok := shipped["networking"]; ok {
		t.Fatal("the retired networking bundle is shipped again")
	}
}

// The names-need-addressing test went with the names module: names are a fact now, and a machine
// the mesh cannot place is simply left out of the file (facts_test.go) — which is the same
// protection, enforced where the file is written rather than by a provision refusing.

func withTailscale(shelf map[string]catalogue.Manifest) map[string]catalogue.Manifest {
	out := map[string]catalogue.Manifest{}
	for k, v := range shelf {
		out[k] = v
	}
	// Deliberately without name-resolution of its own, which is the case that used to install
	// both VPNs: the names then needed the mesh's addressing, and only WireGuard has it.
	out["tailscale"] = catalogue.Manifest{
		Module: "tailscale", Version: "1",
		Provides: catalogue.Offers(overlay.Requirement),
		Claims:   []catalogue.Claim{{Name: overlay.TheNetwork, Scope: catalogue.ScopeNode}},
	}
	return out
}