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// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build golangorg
package memcache
import (
"context"
"os"
"testing"
"time"
)
func getClient(t *testing.T) *Client {
t.Helper()
addr := os.Getenv("GOLANG_REDIS_ADDR")
if addr == "" {
t.Skip("skipping because GOLANG_REDIS_ADDR is unset")
}
return New(addr)
}
func TestCacheMiss(t *testing.T) {
c := getClient(t)
ctx := context.Background()
if _, err := c.Get(ctx, "doesnotexist"); err != ErrCacheMiss {
t.Errorf("got %v; want ErrCacheMiss", err)
}
}
func TestExpiry(t *testing.T) {
c := getClient(t).WithCodec(Gob)
ctx := context.Background()
key := "testexpiry"
firstTime := time.Now()
err := c.Set(ctx, &Item{
Key: key,
Object: firstTime,
Expiration: 3500 * time.Millisecond, // NOTE: check that non-rounded expiries work.
})
if err != nil {
t.Fatalf("Set: %v", err)
}
var newTime time.Time
if err := c.Get(ctx, key, &newTime); err != nil {
t.Fatalf("Get: %v", err)
}
if !firstTime.Equal(newTime) {
t.Errorf("Get: got value %v, want %v", newTime, firstTime)
}
time.Sleep(4 * time.Second)
if err := c.Get(ctx, key, &newTime); err != ErrCacheMiss {
t.Errorf("Get: got %v, want ErrCacheMiss", err)
}
}
func TestShortExpiry(t *testing.T) {
c := getClient(t).WithCodec(Gob)
ctx := context.Background()
key := "testshortexpiry"
err := c.Set(ctx, &Item{
Key: key,
Value: []byte("ok"),
Expiration: time.Millisecond,
})
if err != nil {
t.Fatalf("Set: %v", err)
}
if err := c.Get(ctx, key, nil); err != ErrCacheMiss {
t.Errorf("GetBytes: got %v, want ErrCacheMiss", err)
}
}
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