restic/vendor/cloud.google.com/go/internal/atomiccache/atomiccache_test.go
2017-08-06 21:47:56 +02:00

46 lines
1.2 KiB
Go

// Copyright 2016 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package atomiccache
import (
"fmt"
"testing"
)
func TestGet(t *testing.T) {
var c Cache
called := false
get := func(k interface{}) interface{} {
return c.Get(k, func() interface{} {
called = true
return fmt.Sprintf("v%d", k)
})
}
got := get(1)
if want := "v1"; got != want {
t.Errorf("got %v, want %v", got, want)
}
if !called {
t.Error("getter not called, expected a call")
}
called = false
got = get(1)
if want := "v1"; got != want {
t.Errorf("got %v, want %v", got, want)
}
if called {
t.Error("getter unexpectedly called")
}
}