mesh-sdk/go/catalogue/toolchain_manifests_test.go

package catalogue

import (
	"testing"
)

// Defends novox/hq ADR 0477 §4 (issue 1573): the go and nodejs modules own the toolchain packages and provide
// them with the machine's reach, so a node without one refuses the module that needs it at resolution, naming
// the provision, and does not find out at its first build. The manifests are the catalogue's, as they are.

func toolchainShelf(t *testing.T) map[string]Manifest {
	t.Helper()
	m := map[string]Manifest{
		"forge": {Module: "forge", Version: "1", Provides: []Offer{{Name: "forge-account"}, {Name: "npm-package-registry"}, {Name: "artifact-store"}, {Name: "node-tools"}}},
	}
	for _, name := range []string{"go", "nodejs", "mesh-build-go", "mesh-build-node", "dev-tools"} {
		m[name] = catalogueManifest(t, name)
	}
	return m
}

// Only the owners declare the packages: a build module that declared go again would compose without the
// owner's provision being met by anything, which is the gap the provision closes.
func TestOnlyTheToolchainModulesDeclareTheToolchainPackages(t *testing.T) {
	owner := map[string]string{"go": "go", "nodejs": "nodejs", "npm": "nodejs"}
	for name, m := range toolchainShelf(t) {
		for _, r := range m.Resources {
			if r["type"] != "package" {
				continue
			}
			pkg, _ := r["package"].(string)
			if o, ok := owner[pkg]; ok && o != name {
				t.Errorf("%s declares the package %s, which only %s may", name, pkg, o)
			}
		}
	}
}