registry/docs/storage/cache/redis/redis_test.go
Aaron Lehmann b045aa2a3d Avoid importing "testing" in externally-facing code
The "testing" package adds some flags in its init function, so utilities
that import distribution code may print a page of extra testing flags in
their help output.

This commit solves the issue by moving an import of "testing" in the
registry/storage/cache package to a new
registry/storage/cache/cachecheck package, which is only imported by
tests.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-09-29 10:06:39 -07:00

51 lines
1.3 KiB
Go

package redis
import (
"flag"
"os"
"testing"
"time"
"github.com/docker/distribution/registry/storage/cache/cachecheck"
"github.com/garyburd/redigo/redis"
)
var redisAddr string
func init() {
flag.StringVar(&redisAddr, "test.registry.storage.cache.redis.addr", "", "configure the address of a test instance of redis")
}
// TestRedisLayerInfoCache exercises a live redis instance using the cache
// implementation.
func TestRedisBlobDescriptorCacheProvider(t *testing.T) {
if redisAddr == "" {
// fallback to an environement variable
redisAddr = os.Getenv("TEST_REGISTRY_STORAGE_CACHE_REDIS_ADDR")
}
if redisAddr == "" {
// skip if still not set
t.Skip("please set -registry.storage.cache.redis to test layer info cache against redis")
}
pool := &redis.Pool{
Dial: func() (redis.Conn, error) {
return redis.Dial("tcp", redisAddr)
},
MaxIdle: 1,
MaxActive: 2,
TestOnBorrow: func(c redis.Conn, t time.Time) error {
_, err := c.Do("PING")
return err
},
Wait: false, // if a connection is not avialable, proceed without cache.
}
// Clear the database
if _, err := pool.Get().Do("FLUSHDB"); err != nil {
t.Fatalf("unexpected error flushing redis db: %v", err)
}
cachecheck.CheckBlobDescriptorCache(t, NewRedisBlobDescriptorCacheProvider(pool))
}