//go:build linux

package host

import (
	"testing"
	"time"

	"github.com/carlosframework/platform/internal/hostclaim"
)

// Carry 3, the install journal (Task 10 review M7): the local install
// writes install.json under relocationJournals shared, so it waits while a
// sweep holds the lock, and completes once the sweep lets go.
func TestRelocationInstallJournalWaitsForTheSweep(t *testing.T) {
	f := newInstallFixture(t, nil)
	relocationJournals.Lock()
	locked := true
	defer func() {
		if locked {
			relocationJournals.Unlock()
		}
	}()
	type result struct {
		l   hostclaim.LocalInstall
		err error
	}
	done := make(chan result, 1)
	go func() {
		l, err := f.install()
		done <- result{l, err}
	}()
	select {
	case r := <-done:
		t.Fatalf("installed beside the sweep: %+v %v", r.l, r.err)
	case <-time.After(500 * time.Millisecond):
	}
	relocationJournals.Unlock()
	locked = false
	if r := <-done; r.err != nil {
		t.Fatal(r.err)
	}
	path, _ := relocationInstallPath(f.r.DataDir, "rel-1")
	if _, err := relocationJournalHost(path); err != nil {
		t.Fatalf("the install journal: %v", err)
	}
}