mesh-host/internal/apply/stop_test.go

package apply

import (
	"context"
	"reflect"
	"testing"

	"github.com/novox/mesh-host/internal/store"
)

// Stop stops a module's timer, then its service, then its container, and leaves every record, and another module's
// units, as they are (design 47 G A-98).
func TestStopModuleStopsAModulesUnitsAndContainersAndRemovesNothing(t *testing.T) {
	m := unitsMachine(map[string]*fakeUnit{
		"app.service":   {active: "active", enabled: "enabled"},
		"app.timer":     {active: "active", enabled: "enabled"},
		"other.service": {active: "active", enabled: "enabled"},
	})
	state := store.State{}
	for _, r := range []store.Applied{
		{ID: "app.run", Type: "service", Target: "app.service"},
		{ID: "app.tick", Type: "service", Target: "app.timer"},
		{ID: "app.c", Type: "container", Target: "app-box"},
		{ID: "other.run", Type: "service", Target: "other.service"},
		{ID: "other.c", Type: "container", Target: "other-box"},
	} {
		state.Record(r)
	}
	got, err := StopModule(context.Background(), archHost(t), state, "app", m.run)
	if err != nil {
		t.Fatal(err)
	}
	if want := []string{"app.timer", "app.service", "app-box"}; !reflect.DeepEqual(got, want) {
		t.Fatalf("stopped %v, want %v, the timer first", got, want)
	}
	if m.units["app.service"].active != "inactive" || m.units["app.timer"].active != "inactive" || m.units["other.service"].active != "active" {
		t.Fatalf("units are %+v", m.units)
	}
	if !m.did("docker stop app-box") || m.did("docker stop other-box") || m.did("docker rm") {
		t.Fatalf("the machine was asked %v", m.asked)
	}
	if len(state.Resources) != 5 {
		t.Fatalf("a record was removed: %d left", len(state.Resources))
	}
}