cadvisor/manager/container_test.go
2014-07-03 22:08:24 -07:00

137 lines
3.1 KiB
Go

// Copyright 2014 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.
// Per-container manager.
package manager
import (
"fmt"
"testing"
"time"
"github.com/google/cadvisor/container"
ctest "github.com/google/cadvisor/container/test"
"github.com/google/cadvisor/info"
itest "github.com/google/cadvisor/info/test"
"github.com/google/cadvisor/storage"
stest "github.com/google/cadvisor/storage/test"
)
func createContainerDataAndSetHandler(
driver storage.StorageDriver,
f func(*ctest.MockContainerHandler),
t *testing.T,
) *containerData {
factory := &ctest.FactoryForMockContainerHandler{
Name: "factoryForMockContainer",
PrepareContainerHandlerFunc: func(name string, handler *ctest.MockContainerHandler) {
handler.Name = name
f(handler)
},
}
container.RegisterContainerHandlerFactory("/", factory)
if driver == nil {
driver = &stest.MockStorageDriver{}
}
ret, err := NewContainerData("/container", driver)
if err != nil {
t.Fatal(err)
}
return ret
}
func TestContainerUpdateSubcontainers(t *testing.T) {
var handler *ctest.MockContainerHandler
subcontainers := []info.ContainerReference{
{Name: "/container/ee0103"},
{Name: "/container/abcd"},
{Name: "/container/something"},
}
cd := createContainerDataAndSetHandler(
nil,
func(h *ctest.MockContainerHandler) {
h.On("ListContainers", container.LIST_SELF).Return(
subcontainers,
nil,
)
handler = h
},
t,
)
err := cd.updateSubcontainers()
if err != nil {
t.Fatal(err)
}
handler.AssertExpectations(t)
}
func TestContainerUpdateSubcontainersWithError(t *testing.T) {
var handler *ctest.MockContainerHandler
cd := createContainerDataAndSetHandler(
nil,
func(h *ctest.MockContainerHandler) {
h.On("ListContainers", container.LIST_SELF).Return(
[]info.ContainerReference{},
fmt.Errorf("some error"),
)
handler = h
},
t,
)
err := cd.updateSubcontainers()
if err == nil {
t.Fatal("updateSubcontainers should return error")
}
handler.AssertExpectations(t)
}
func TestContainerUpdateStats(t *testing.T) {
var handler *ctest.MockContainerHandler
var ref info.ContainerReference
driver := &stest.MockStorageDriver{}
statsList := itest.GenerateRandomStats(1, 4, 1*time.Second)
stats := statsList[0]
cd := createContainerDataAndSetHandler(
driver,
func(h *ctest.MockContainerHandler) {
h.On("GetStats").Return(
stats,
nil,
)
handler = h
ref.Name = h.Name
},
t,
)
driver.On("AddStats", ref, stats).Return(nil)
err := cd.updateStats()
if err != nil {
t.Fatal(err)
}
handler.AssertExpectations(t)
}