/
testing.go
309 lines (277 loc) · 10.2 KB
/
testing.go
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// Copyright 2013 Canonical Ltd.
// Licensed under the AGPLv3, see LICENCE file for details.
package testing
import (
"bytes"
"crypto/sha256"
"fmt"
"io"
"io/ioutil"
"os"
"path"
"path/filepath"
"sort"
"strings"
"time"
jc "github.com/juju/testing/checkers"
"github.com/juju/utils"
"github.com/juju/utils/arch"
"github.com/juju/utils/series"
"github.com/juju/utils/set"
"github.com/juju/version"
gc "gopkg.in/check.v1"
"github.com/juju/juju/environs/filestorage"
"github.com/juju/juju/environs/simplestreams"
sstesting "github.com/juju/juju/environs/simplestreams/testing"
"github.com/juju/juju/environs/storage"
"github.com/juju/juju/environs/sync"
envtesting "github.com/juju/juju/environs/testing"
"github.com/juju/juju/environs/tools"
"github.com/juju/juju/juju/names"
coretesting "github.com/juju/juju/testing"
coretools "github.com/juju/juju/tools"
jujuversion "github.com/juju/juju/version"
)
func GetMockBundleTools(c *gc.C) tools.BundleToolsFunc {
return func(w io.Writer, forceVersion *version.Number) (version.Binary, string, error) {
vers := version.Binary{
Number: jujuversion.Current,
Arch: arch.HostArch(),
Series: series.HostSeries(),
}
if forceVersion != nil {
vers.Number = *forceVersion
}
sha256Hash := fmt.Sprintf("%x", sha256.New().Sum(nil))
return vers, sha256Hash, nil
}
}
// GetMockBuildTools returns a sync.BuildToolsTarballFunc implementation which generates
// a fake tools tarball.
func GetMockBuildTools(c *gc.C) sync.BuildToolsTarballFunc {
return func(forceVersion *version.Number, stream string) (*sync.BuiltTools, error) {
vers := version.Binary{
Number: jujuversion.Current,
Arch: arch.HostArch(),
Series: series.HostSeries(),
}
if forceVersion != nil {
vers.Number = *forceVersion
}
tgz, checksum := coretesting.TarGz(
coretesting.NewTarFile(names.Jujud, 0777, "jujud contents "+vers.String()))
toolsDir, err := ioutil.TempDir("", "juju-tools-"+stream)
c.Assert(err, jc.ErrorIsNil)
name := "name"
ioutil.WriteFile(filepath.Join(toolsDir, name), tgz, 0777)
return &sync.BuiltTools{
Dir: toolsDir,
StorageName: name,
Version: vers,
Size: int64(len(tgz)),
Sha256Hash: checksum,
}, nil
}
}
// MakeTools creates some fake tools with the given version strings.
func MakeTools(c *gc.C, metadataDir, stream string, versionStrings []string) coretools.List {
return makeTools(c, metadataDir, stream, versionStrings, false)
}
// MakeToolsWithCheckSum creates some fake tools (including checksums) with the given version strings.
func MakeToolsWithCheckSum(c *gc.C, metadataDir, stream string, versionStrings []string) coretools.List {
return makeTools(c, metadataDir, stream, versionStrings, true)
}
func makeTools(c *gc.C, metadataDir, stream string, versionStrings []string, withCheckSum bool) coretools.List {
toolsDir := filepath.Join(metadataDir, storage.BaseToolsPath, stream)
c.Assert(os.MkdirAll(toolsDir, 0755), gc.IsNil)
var toolsList coretools.List
for _, versionString := range versionStrings {
binary, err := version.ParseBinary(versionString)
if err != nil {
c.Assert(err, jc.Satisfies, series.IsUnknownOSForSeriesError)
}
path := filepath.Join(toolsDir, fmt.Sprintf("juju-%s.tgz", binary))
data := binary.String()
err = ioutil.WriteFile(path, []byte(data), 0644)
c.Assert(err, jc.ErrorIsNil)
tool := &coretools.Tools{
Version: binary,
URL: path,
}
if withCheckSum {
tool.Size, tool.SHA256 = SHA256sum(c, path)
}
toolsList = append(toolsList, tool)
}
// Write the tools metadata.
stor, err := filestorage.NewFileStorageWriter(metadataDir)
c.Assert(err, jc.ErrorIsNil)
err = tools.MergeAndWriteMetadata(stor, stream, stream, toolsList, false)
c.Assert(err, jc.ErrorIsNil)
// Sign metadata
err = envtesting.SignTestTools(stor)
c.Assert(err, jc.ErrorIsNil)
return toolsList
}
// SHA256sum creates the sha256 checksum for the specified file.
func SHA256sum(c *gc.C, path string) (int64, string) {
if strings.HasPrefix(path, "file://") {
path = path[len("file://"):]
}
hash, size, err := utils.ReadFileSHA256(path)
c.Assert(err, jc.ErrorIsNil)
return size, hash
}
// ParseMetadataFromDir loads ToolsMetadata from the specified directory.
func ParseMetadataFromDir(c *gc.C, metadataDir, stream string, expectMirrors bool) []*tools.ToolsMetadata {
stor, err := filestorage.NewFileStorageReader(metadataDir)
c.Assert(err, jc.ErrorIsNil)
return ParseMetadataFromStorage(c, stor, stream, expectMirrors)
}
// ParseMetadataFromStorage loads ToolsMetadata from the specified storage reader.
func ParseMetadataFromStorage(c *gc.C, stor storage.StorageReader, stream string, expectMirrors bool) []*tools.ToolsMetadata {
source := storage.NewStorageSimpleStreamsDataSource("test storage reader", stor, "tools", simplestreams.CUSTOM_CLOUD_DATA, false)
params := simplestreams.ValueParams{
DataType: tools.ContentDownload,
ValueTemplate: tools.ToolsMetadata{},
}
const requireSigned = false
indexPath := simplestreams.UnsignedIndex("v1", 2)
mirrorsPath := simplestreams.MirrorsPath("v1")
indexRef, err := simplestreams.GetIndexWithFormat(
source, indexPath, "index:1.0", mirrorsPath, requireSigned, simplestreams.CloudSpec{}, params)
c.Assert(err, jc.ErrorIsNil)
toolsIndexMetadata := indexRef.Indexes[tools.ToolsContentId(stream)]
c.Assert(toolsIndexMetadata, gc.NotNil)
// Read the products file contents.
r, err := stor.Get(path.Join("tools", toolsIndexMetadata.ProductsFilePath))
defer r.Close()
c.Assert(err, jc.ErrorIsNil)
data, err := ioutil.ReadAll(r)
c.Assert(err, jc.ErrorIsNil)
url, err := source.URL(toolsIndexMetadata.ProductsFilePath)
c.Assert(err, jc.ErrorIsNil)
cloudMetadata, err := simplestreams.ParseCloudMetadata(data, "products:1.0", url, tools.ToolsMetadata{})
c.Assert(err, jc.ErrorIsNil)
toolsMetadataMap := make(map[string]*tools.ToolsMetadata)
expectedProductIds := make(set.Strings)
toolsVersions := make(set.Strings)
for _, mc := range cloudMetadata.Products {
for _, items := range mc.Items {
for key, item := range items.Items {
toolsMetadata := item.(*tools.ToolsMetadata)
toolsMetadataMap[key] = toolsMetadata
toolsVersions.Add(key)
seriesVersion, err := series.SeriesVersion(toolsMetadata.Release)
if err != nil {
c.Assert(err, jc.Satisfies, series.IsUnknownSeriesVersionError)
}
productId := fmt.Sprintf("com.ubuntu.juju:%s:%s", seriesVersion, toolsMetadata.Arch)
expectedProductIds.Add(productId)
}
}
}
// Make sure index's product IDs are all represented in the products metadata.
sort.Strings(toolsIndexMetadata.ProductIds)
c.Assert(toolsIndexMetadata.ProductIds, gc.DeepEquals, expectedProductIds.SortedValues())
toolsMetadata := make([]*tools.ToolsMetadata, len(toolsMetadataMap))
for i, key := range toolsVersions.SortedValues() {
toolsMetadata[i] = toolsMetadataMap[key]
}
if expectMirrors {
r, err = stor.Get(path.Join("tools", simplestreams.UnsignedMirror("v1")))
c.Assert(err, jc.ErrorIsNil)
defer r.Close()
data, err = ioutil.ReadAll(r)
c.Assert(err, jc.ErrorIsNil)
c.Assert(string(data), jc.Contains, `"mirrors":`)
c.Assert(string(data), jc.Contains, tools.ToolsContentId(stream))
c.Assert(err, jc.ErrorIsNil)
}
return toolsMetadata
}
type metadataFile struct {
path string
data []byte
}
func generateMetadata(c *gc.C, stream string, versions ...version.Binary) []metadataFile {
var metadata = make([]*tools.ToolsMetadata, len(versions))
for i, vers := range versions {
basePath := fmt.Sprintf("%s/tools-%s.tar.gz", stream, vers.String())
metadata[i] = &tools.ToolsMetadata{
Release: vers.Series,
Version: vers.Number.String(),
Arch: vers.Arch,
Path: basePath,
}
}
var streamMetadata = map[string][]*tools.ToolsMetadata{
stream: metadata,
}
index, legacyIndex, products, err := tools.MarshalToolsMetadataJSON(streamMetadata, time.Now())
c.Assert(err, jc.ErrorIsNil)
objects := []metadataFile{}
addTools := func(fileName string, content []byte) {
// add unsigned
objects = append(objects, metadataFile{fileName, content})
signedFilename, signedContent, err := sstesting.SignMetadata(fileName, content)
c.Assert(err, jc.ErrorIsNil)
// add signed
objects = append(objects, metadataFile{signedFilename, signedContent})
}
addTools(simplestreams.UnsignedIndex("v1", 2), index)
if stream == "released" {
addTools(simplestreams.UnsignedIndex("v1", 1), legacyIndex)
}
for stream, metadata := range products {
addTools(tools.ProductMetadataPath(stream), metadata)
}
return objects
}
// UploadToStorage uploads tools and metadata for the specified versions to storage.
func UploadToStorage(c *gc.C, stor storage.Storage, stream string, versions ...version.Binary) map[version.Binary]string {
uploaded := map[version.Binary]string{}
if len(versions) == 0 {
return uploaded
}
var err error
for _, vers := range versions {
filename := fmt.Sprintf("tools/%s/tools-%s.tar.gz", stream, vers.String())
// Put a file in images since the dummy storage provider requires a
// file to exist before the URL can be found. This is to ensure it behaves
// the same way as MAAS.
err = stor.Put(filename, strings.NewReader("dummy"), 5)
c.Assert(err, jc.ErrorIsNil)
uploaded[vers], err = stor.URL(filename)
c.Assert(err, jc.ErrorIsNil)
}
objects := generateMetadata(c, stream, versions...)
for _, object := range objects {
toolspath := path.Join("tools", object.path)
err = stor.Put(toolspath, bytes.NewReader(object.data), int64(len(object.data)))
c.Assert(err, jc.ErrorIsNil)
}
return uploaded
}
// UploadToDirectory uploads tools and metadata for the specified versions to dir.
func UploadToDirectory(c *gc.C, stream, dir string, versions ...version.Binary) map[version.Binary]string {
uploaded := map[version.Binary]string{}
if len(versions) == 0 {
return uploaded
}
for _, vers := range versions {
basePath := fmt.Sprintf("%s/tools-%s.tar.gz", stream, vers.String())
uploaded[vers] = utils.MakeFileURL(fmt.Sprintf("%s/%s", dir, basePath))
}
objects := generateMetadata(c, stream, versions...)
for _, object := range objects {
path := filepath.Join(dir, object.path)
dir := filepath.Dir(path)
if err := os.MkdirAll(dir, 0755); err != nil && !os.IsExist(err) {
c.Assert(err, jc.ErrorIsNil)
}
err := ioutil.WriteFile(path, object.data, 0644)
c.Assert(err, jc.ErrorIsNil)
}
return uploaded
}