package fs

import (
	"testing"

	"github.com/google/go-cmp/cmp"
)

func TestOracle(t *testing.T) {
	var message_nums = []int{0, 1, 2, 3, 4}
	var results []MailFile
	clock := mockClock{}
	oracle := newOracle(clock)
	for range message_nums {
		req := NewMailFileRequest()
		oracle <- req
		results = append(results, req.Response())
	}
	for i := range message_nums[1:] {
		timestamp_c := results[0].timestamp != results[i].timestamp
		pid_c := results[0].pid != results[i].pid
		hostname_c := results[0].hostname != results[i].hostname

		if timestamp_c || pid_c || hostname_c {
			t.Logf("timestamp_c: %+v\n", timestamp_c)
			t.Logf("pid_c: %+v\n", pid_c)
			t.Logf("hostname_c: %+v\n", hostname_c)
			t.Errorf("Mismatching timestamps, %+v\n", cmp.Diff(results[0], results[i], cmp.AllowUnexported(MailFile{})))
		}

		if results[i].progressive != i {
			t.Errorf("Unexpected progressive -> have: %d | expect: %d\n", results[i].progressive, i)
		}
	}
}