go-mru/timestamps_test.go

51 lines
926 B
Go

package mru
import (
"testing"
"time"
"github.com/benbjohnson/clock"
)
func TestTimestamps(t *testing.T) {
ts := newTimestamps(3)
mock := clock.NewMock()
// raven
ts.Update("raven", mock.Now().UnixNano())
// raven, owl
mock.Add(time.Millisecond)
ts.Update("owl", mock.Now().UnixNano())
// raven, owl, goat
mock.Add(time.Second)
ts.Update("goat", mock.Now().UnixNano())
if err := ts.ConsistencyCheck(); err != nil {
t.Fatal(err)
}
mock.Add(time.Millisecond)
// raven, goat, owl
ts.Update("owl", mock.Now().UnixNano())
if err := ts.ConsistencyCheck(); err != nil {
t.Fatal(err)
}
// at this point, the keys should be raven, goat, owl.
if ts.K(0) != "raven" {
t.Fatalf("first key should be raven, have %s", ts.K(0))
}
if ts.K(1) != "goat" {
t.Fatalf("second key should be goat, have %s", ts.K(1))
}
if ts.K(2) != "owl" {
t.Fatalf("third key should be owl, have %s", ts.K(2))
}
}