Files
mesh-controller/cmd/mesh-controller/unbound_test.go
T

59 lines
2.1 KiB
Go

//go:build integration
package main
import (
"strings"
"testing"
"git.novox.be/novox/mesh-sdk/go/catalogue"
)
// A machine running grafana without influxdb says so (novox/hq ADR 0330 §7, issue 166): `plan` and
// `node` list the optional requirement nothing assigned answers, and the requirement is left
// absent rather than refused — influxdb is in the catalogue and is not installed for it.
func TestPlanAndNodeListAnOptionalRequirementLeftUnbound(t *testing.T) {
open := aMesh(t)
ctx := t.Context()
register(t, open, catalogue.Manifest{Module: "influxdb", Version: "1",
Provides: catalogue.FromAnywhere("influxdb-api")})
register(t, open, catalogue.Manifest{Module: "grafana", Version: "1",
Requires: []string{"influxdb-api"}, OptionalRequires: map[string]bool{"influxdb-api": true},
Resources: []map[string]any{{"id": "state", "type": "directory", "path": "/var/lib/grafana", "mode": "0700"}}})
if _, err := assign(ctx, open, "laptop", "grafana"); err != nil {
t.Fatalf("grafana could not be assigned on a mesh without influxdb: %v", err)
}
plan, _, err := resolveNode(ctx, open, "laptop")
if err != nil {
t.Fatal(err)
}
for _, m := range plan.Modules {
if m.Module == "influxdb" {
t.Fatal("influxdb was installed for grafana's optional requirement (ADR 0330 §3)")
}
}
const said = "unbound influxdb-api, optional for grafana"
if shown := printed(t, func() error { return showNode(ctx, open, "laptop") }); !strings.Contains(shown, said) {
t.Errorf("node show laptop does not say influxdb-api is unbound:\n%s", shown)
}
// And once influxdb is assigned somewhere, grafana binds to it with no act on grafana.
if _, err := assign(ctx, open, "anchor", "influxdb"); err != nil {
t.Fatal(err)
}
plan, _, err = resolveNode(ctx, open, "laptop")
if err != nil {
t.Fatal(err)
}
if len(plan.Absent) != 0 {
t.Fatalf("still absent after influxdb was assigned: %+v", plan.Absent)
}
var bound bool
for _, n := range plan.Needs {
bound = bound || n.For == "grafana" && n.Name == "influxdb-api" && n.From == "anchor"
}
if !bound {
t.Fatalf("grafana was not bound to influxdb on anchor: %+v", plan.Needs)
}
}