fix tests and double namespacing depending on backend

cache.go

@@ -3,6 +3,7 @@ package storage
 import (
 	"os"
 	"path"
+	"strings"
 	"time"
 
 	cache "github.com/patrickmn/go-cache"
@@ -34,7 +35,7 @@ func (c *Cache) List(ns []string, limits ...string) ([]string, error) {
 	keys := []string{}
 	for k := range m {
 		if k >= limits[0] && k <= limits[1] {
-			keys = append(keys, k)
+			keys = append(keys, strings.TrimPrefix(k, namespace+"/"))
 		}
 	}
 	return keys, nil

db_test.go

@@ -17,11 +17,12 @@ type mock struct {
 }
 
 func (mock *mock) List(ns []string, limits ...string) ([]string, error) {
+	namespace := resolveNamespace(ns)
 	limits = resolveLimits(limits)
 	keys := []string{}
 	for k := range mock.m {
 		if k >= limits[0] && k <= limits[1] {
-			keys = append(keys, k)
+			keys = append(keys, strings.TrimPrefix(k, namespace+"/"))
 		}
 	}
 	return keys, nil
@@ -197,13 +198,13 @@ type = local
 		t.Logf("   %T: list1", db)
 		if keys, err := db.List([]string{"ns1", "ns2"}); err != nil || len(keys) < 1 {
 			t.Errorf("%T) cannot List(): %v", db, err)
-		} else if !strings.Contains(keys[0], validKey) {
-			t.Errorf("%T) List()[0] != %s: %s", db, validKey, keys[0])
+		} else if keys[0] != validKey {
+			t.Errorf("%T) List()[0] != %s: %s: want %q, got %q", db, validKey, keys[0], validKey, keys[0])
 		}
 		t.Logf("   %T: list2", db)
 		if keys, err := db.List([]string{"ns1", "ns2"}, validKey[:1]); err != nil || len(keys) < 1 {
 			t.Errorf("%T) cannot List(prefix): %v", db, err)
-		} else if !strings.Contains(keys[0], validKey) {
+		} else if keys[0] != validKey {
 			t.Errorf("%T) List(prefix)[0] != %s: %s", db, validKey, keys[0])
 		}
 		t.Logf("   %T: close", db)

files.go

@@ -39,7 +39,7 @@ func (b *Files) List(ns []string, limits ...string) ([]string, error) {
 		if !strings.HasPrefix(strings.TrimPrefix(p, b.root+"/"), namespace) {
 			return nil
 		}
-		files = append(files, path.Join(b.root, p))
+		files = append(files, strings.TrimPrefix(p, path.Join(b.root, namespace)+"/"))
 		return nil
 	})
 	return files, err

redis.go

@@ -17,7 +17,7 @@ func NewRedis(addr, user, pass string) (*Redis, error) {
 	if pass != "" {
 		opts = append(opts, redis.DialPassword(pass))
 	}
-	opts = append(opts, redis.DialConnectTimeout(time.Second*10))
+	opts = append(opts, redis.DialConnectTimeout(time.Second*3))
 	client, err := redis.Dial("tcp", addr, opts...)
 	return &Redis{
 		client: client,