resource/docker/image/image_test.go
// Copyright © 2016 Asteris, LLC
//
// 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.
// +build !solaris
package image_test
import (
"errors"
"testing"
"github.com/asteris-llc/converge/helpers/fakerenderer"
"github.com/asteris-llc/converge/resource"
"github.com/asteris-llc/converge/resource/docker/image"
dc "github.com/fsouza/go-dockerclient"
"github.com/stretchr/testify/assert"
"golang.org/x/net/context"
)
func TestImageInterface(t *testing.T) {
t.Parallel()
assert.Implements(t, (*resource.Task)(nil), new(image.Image))
}
func TestImageRepoTag(t *testing.T) {
t.Parallel()
type repoTagTest struct {
*image.Image
Expected string
}
tests := []repoTagTest{
{&image.Image{Name: "ubuntu", Tag: "precise"}, "ubuntu:precise"},
{&image.Image{Name: "ubuntu"}, "ubuntu:latest"},
{&image.Image{Name: "gliderlabs/alpine", Tag: "3.3"}, "gliderlabs/alpine:3.3"},
}
for _, test := range tests {
assert.Equal(t, test.Expected, test.Image.RepoTag())
}
}
func TestImageCheckImageNeedsChange(t *testing.T) {
t.Parallel()
c := &fakeAPIClient{
FindImageFunc: func(string) (*dc.Image, error) {
return nil, nil
},
}
image := &image.Image{Name: "ubuntu", Tag: "precise"}
image.SetClient(c)
status, err := image.Check(context.Background(), fakerenderer.New())
assert.Nil(t, err)
assert.True(t, status.HasChanges())
assert.Equal(t, "<image-missing>", status.Diffs()["image"].Original())
assert.Equal(t, "ubuntu:precise", status.Diffs()["image"].Current())
}
func TestImageCheckImageNoChange(t *testing.T) {
t.Parallel()
c := &fakeAPIClient{
FindImageFunc: func(string) (*dc.Image, error) {
return &dc.Image{}, nil
},
}
image := &image.Image{Name: "ubuntu", Tag: "precise"}
image.SetClient(c)
status, err := image.Check(context.Background(), fakerenderer.New())
assert.Nil(t, err)
assert.False(t, status.HasChanges())
assert.Equal(t, "ubuntu:precise", status.Diffs()["image"].Original())
assert.Equal(t, "ubuntu:precise", status.Diffs()["image"].Current())
}
func TestImageCheckFailed(t *testing.T) {
t.Parallel()
c := &fakeAPIClient{
FindImageFunc: func(string) (*dc.Image, error) {
return nil, errors.New("find image failed")
},
}
image := &image.Image{Name: "ubuntu", Tag: "precise"}
image.SetClient(c)
status, err := image.Check(context.Background(), fakerenderer.New())
if assert.Error(t, err) {
assert.EqualError(t, err, "find image failed")
}
assert.Equal(t, resource.StatusFatal, status.StatusCode())
assert.False(t, status.HasChanges())
}
func TestImageApply(t *testing.T) {
t.Parallel()
c := &fakeAPIClient{
PullImageFunc: func(string, string) error {
return nil
},
}
image := &image.Image{Name: "ubuntu", Tag: "precise"}
image.SetClient(c)
_, applyError := image.Apply(context.Background())
assert.NoError(t, applyError)
}
func TestImageApplyTimedOut(t *testing.T) {
t.Parallel()
c := &fakeAPIClient{
PullImageFunc: func(string, string) error {
return errors.New("inactivity time exceeded timeout")
},
}
image := &image.Image{Name: "ubuntu", Tag: "precise"}
image.SetClient(c)
_, err := image.Apply(context.Background())
if assert.Error(t, err) {
assert.EqualError(t, err, "inactivity time exceeded timeout")
}
}
type fakeAPIClient struct {
FindImageFunc func(repoTag string) (*dc.Image, error)
PullImageFunc func(name, tag string) error
FindContainerFunc func(name string) (*dc.Container, error)
CreateContainerFunc func(opts dc.CreateContainerOptions) (*dc.Container, error)
StartContainerFunc func(name, id string) error
ConnectNetworkFunc func(name string, container *dc.Container) error
}
func (f *fakeAPIClient) FindImage(repoTag string) (*dc.Image, error) {
return f.FindImageFunc(repoTag)
}
func (f *fakeAPIClient) PullImage(name, tag string) error {
return f.PullImageFunc(name, tag)
}
func (f *fakeAPIClient) FindContainer(name string) (*dc.Container, error) {
return f.FindContainerFunc(name)
}
func (f *fakeAPIClient) CreateContainer(opts dc.CreateContainerOptions) (*dc.Container, error) {
return f.CreateContainerFunc(opts)
}
func (f *fakeAPIClient) StartContainer(name, id string) error {
return f.StartContainerFunc(name, id)
}
func (f *fakeAPIClient) ConnectNetwork(name string, container *dc.Container) error {
return f.ConnectNetworkFunc(name, container)
}