Add testable interface for datastore.

impl/dummy/dummy.go

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package dummy
 
 import (
         "fmt"
         "runtime"
         "strings"
@@ skipping 62 matching lines @@
 }
 func (ds) GetMulti([]datastore.Key, datastore.MultiMetaGetter, datastore.GetMultiCB) error {
         panic(ni())
 }
 func (ds) DeleteMulti([]datastore.Key, datastore.DeleteMultiCB) error { panic(ni()) }
 func (ds) NewQuery(string) datastore.Query                            { panic(ni()) }
 func (ds) Run(datastore.Query, datastore.RawRunCB) error              { panic(ni()) }
 func (ds) RunInTransaction(func(context.Context) error, *datastore.TransactionOptions) error {
         panic(ni())
 }
+func (ds) Testable() datastore.Testable { panic(ni()) }

[dnj (Google), 2015/08/14 22:53:54]

Interface docs suggests this should return "nil" rather than panic.

[iannucci, 2015/08/15 01:59:25]

Done.

 
 var dummyDSInst = ds{}
 
 // Datastore returns a dummy datastore.RawInterface implementation suitable
 // for embedding. Every method panics with a message containing the name of the
 // method which was unimplemented.
 func Datastore() datastore.RawInterface { return dummyDSInst }
 
 /////////////////////////////////// mc ////////////////////////////////////
 
@@ skipping 56 matching lines @@
 func (i) IsCapabilityDisabled(err error) bool                                      { panic(ni()) }
 func (i) IsOverQuota(err error) bool                                               { panic(ni()) }
 func (i) IsTimeoutError(err error) bool                                            { panic(ni()) }
 
 var dummyInfoInst = i{}
 
 // Info returns a dummy info.Interface implementation suitable for embedding.
 // Every method panics with a message containing the name of the method which
 // was unimplemented.
 func Info() info.Interface { return dummyInfoInst }