func buildPkg(bc *fakebc.FakeBundleCollection) (models.Package, *fakebc.FakeBundle) {
uuidGen := boshuuid.NewGenerator()
uuid, err := uuidGen.Generate()
Expect(err).ToNot(HaveOccurred())
pkg := models.Package{
Name: "fake-package-name" + uuid,
Version: "fake-package-name",
Source: models.Source{
Sha1: "fake-blob-sha1",
BlobstoreID: "fake-blobstore-id",
},
}
bundle := bc.FakeGet(pkg)
return pkg, bundle
}
func buildJob(bc *fakebc.FakeBundleCollection) (models.Job, *fakebc.FakeBundle) {
uuidGen := boshuuid.NewGenerator()
uuid, err := uuidGen.Generate()
Expect(err).ToNot(HaveOccurred())
job := models.Job{
Name: "fake-job-name" + uuid,
Version: "fake-job-version",
Source: models.Source{
Sha1: "fake-blob-sha1",
BlobstoreID: "fake-blobstore-id",
PathInArchive: "fake-path-in-archive",
},
}
bundle := bc.FakeGet(job)
return job, bundle
}
func init() {
Describe("renderedJobApplier", func() {
var (
jobsBc *fakebc.FakeBundleCollection
jobSupervisor *fakejobsuper.FakeJobSupervisor
packageApplierProvider *fakepa.FakePackageApplierProvider
blobstore *fakeblob.FakeBlobstore
compressor *fakecmd.FakeCompressor
fs *fakesys.FakeFileSystem
applier JobApplier
)
BeforeEach(func() {
jobsBc = fakebc.NewFakeBundleCollection()
jobSupervisor = fakejobsuper.NewFakeJobSupervisor()
packageApplierProvider = fakepa.NewFakePackageApplierProvider()
blobstore = fakeblob.NewFakeBlobstore()
fs = fakesys.NewFakeFileSystem()
compressor = fakecmd.NewFakeCompressor()
logger := boshlog.NewLogger(boshlog.LevelNone)
applier = NewRenderedJobApplier(
jobsBc,
jobSupervisor,
packageApplierProvider,
blobstore,
compressor,
fs,
logger,
)
})
Describe("Prepare & Apply", func() {
var (
job models.Job
bundle *fakebc.FakeBundle
)
BeforeEach(func() {
job, bundle = buildJob(jobsBc)
})
ItInstallsJob := func(act func() error) {
It("returns error when installing job fails", func() {
bundle.InstallError = errors.New("fake-install-error")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-install-error"))
})
It("downloads and later cleans up downloaded job template blob", func() {
blobstore.GetFileName = "/fake-blobstore-file-name"
err := act()
Expect(err).ToNot(HaveOccurred())
Expect(blobstore.GetBlobIDs[0]).To(Equal("fake-blobstore-id"))
Expect(blobstore.GetFingerprints[0]).To(Equal("fake-blob-sha1"))
// downloaded file is cleaned up
Expect(blobstore.CleanUpFileName).To(Equal("/fake-blobstore-file-name"))
})
It("returns error when downloading job template blob fails", func() {
blobstore.GetError = errors.New("fake-get-error")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-get-error"))
})
It("decompresses job template blob to tmp path and later cleans it up", func() {
fs.TempDirDir = "/fake-tmp-dir"
blobstore.GetFileName = "/fake-blobstore-file-name"
var tmpDirExistsBeforeInstall bool
bundle.InstallCallBack = func() {
tmpDirExistsBeforeInstall = true
}
err := act()
Expect(err).ToNot(HaveOccurred())
Expect(compressor.DecompressFileToDirTarballPaths[0]).To(Equal("/fake-blobstore-file-name"))
Expect(compressor.DecompressFileToDirDirs[0]).To(Equal("/fake-tmp-dir"))
// tmp dir exists before bundle install
Expect(tmpDirExistsBeforeInstall).To(BeTrue())
// tmp dir is cleaned up after install
Expect(fs.FileExists(fs.TempDirDir)).To(BeFalse())
})
It("returns error when temporary directory creation fails", func() {
fs.TempDirError = errors.New("fake-filesystem-tempdir-error")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-filesystem-tempdir-error"))
})
It("returns error when decompressing job template fails", func() {
compressor.DecompressFileToDirErr = errors.New("fake-decompress-error")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-decompress-error"))
})
It("returns error when getting the list of bin files fails", func() {
fs.GlobErr = errors.New("fake-glob-error")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-glob-error"))
})
It("returns error when changing permissions on bin files fails", func() {
fs.TempDirDir = "/fake-tmp-dir"
fs.SetGlob("/fake-tmp-dir/fake-path-in-archive/bin/*", []string{
"/fake-tmp-dir/fake-path-in-archive/bin/test",
})
fs.ChmodErr = errors.New("fake-chmod-error")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-chmod-error"))
})
It("installs bundle from decompressed tmp path of a job template", func() {
fs.TempDirDir = "/fake-tmp-dir"
var installedBeforeDecompression bool
compressor.DecompressFileToDirCallBack = func() {
installedBeforeDecompression = bundle.Installed
}
err := act()
Expect(err).ToNot(HaveOccurred())
// bundle installation did not happen before decompression
Expect(installedBeforeDecompression).To(BeFalse())
// make sure that bundle install happened after decompression
Expect(bundle.InstallSourcePath).To(Equal("/fake-tmp-dir/fake-path-in-archive"))
})
It("sets executable bit for files in bin", func() {
fs.TempDirDir = "/fake-tmp-dir"
compressor.DecompressFileToDirCallBack = func() {
fs.WriteFile("/fake-tmp-dir/fake-path-in-archive/bin/test1", []byte{})
fs.WriteFile("/fake-tmp-dir/fake-path-in-archive/bin/test2", []byte{})
fs.WriteFile("/fake-tmp-dir/fake-path-in-archive/config/test", []byte{})
}
fs.SetGlob("/fake-tmp-dir/fake-path-in-archive/bin/*", []string{
"/fake-tmp-dir/fake-path-in-archive/bin/test1",
"/fake-tmp-dir/fake-path-in-archive/bin/test2",
})
var binTest1Stats, binTest2Stats, configTestStats *fakesys.FakeFileStats
bundle.InstallCallBack = func() {
binTest1Stats = fs.GetFileTestStat("/fake-tmp-dir/fake-path-in-archive/bin/test1")
binTest2Stats = fs.GetFileTestStat("/fake-tmp-dir/fake-path-in-archive/bin/test2")
configTestStats = fs.GetFileTestStat("/fake-tmp-dir/fake-path-in-archive/config/test")
}
err := act()
Expect(err).ToNot(HaveOccurred())
// bin files are executable
Expect(int(binTest1Stats.FileMode)).To(Equal(0755))
Expect(int(binTest2Stats.FileMode)).To(Equal(0755))
// non-bin files are not made executable
Expect(int(configTestStats.FileMode)).ToNot(Equal(0755))
})
}
ItUpdatesPackages := func(act func() error) {
var packageApplier *fakepa.FakePackageApplier
BeforeEach(func() {
packageApplier = fakepa.NewFakePackageApplier()
packageApplierProvider.JobSpecificPackageAppliers[job.Name] = packageApplier
})
It("applies each package that job depends on and then cleans up packages", func() {
err := act()
Expect(err).ToNot(HaveOccurred())
Expect(packageApplier.ActionsCalled).To(Equal([]string{"Apply", "Apply", "KeepOnly"}))
Expect(len(packageApplier.AppliedPackages)).To(Equal(2)) // present
Expect(packageApplier.AppliedPackages).To(Equal(job.Packages))
})
It("returns error when applying package that job depends on fails", func() {
packageApplier.ApplyError = errors.New("fake-apply-err")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-apply-err"))
})
It("keeps only currently required packages but does not completely uninstall them", func() {
err := act()
Expect(err).ToNot(HaveOccurred())
Expect(len(packageApplier.KeptOnlyPackages)).To(Equal(2)) // present
Expect(packageApplier.KeptOnlyPackages).To(Equal(job.Packages))
})
It("returns error when keeping only currently required packages fails", func() {
packageApplier.KeepOnlyErr = errors.New("fake-keep-only-err")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-keep-only-err"))
})
}
Describe("Prepare", func() {
act := func() error { return applier.Prepare(job) }
It("return an error if getting file bundle fails", func() {
jobsBc.GetErr = errors.New("fake-get-bundle-error")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-get-bundle-error"))
})
It("returns an error if checking for installed path fails", func() {
bundle.IsInstalledErr = errors.New("fake-is-installed-error")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-is-installed-error"))
})
Context("when job is already installed", func() {
BeforeEach(func() {
bundle.Installed = true
})
It("does not install", func() {
err := act()
Expect(err).ToNot(HaveOccurred())
Expect(bundle.ActionsCalled).To(Equal([]string{})) // no Install
})
It("does not download the job template", func() {
err := act()
Expect(err).ToNot(HaveOccurred())
Expect(blobstore.GetBlobIDs).To(BeNil())
})
})
Context("when job is not installed", func() {
BeforeEach(func() {
bundle.Installed = false
})
It("installs job (but does not enable)", func() {
err := act()
Expect(err).ToNot(HaveOccurred())
Expect(bundle.ActionsCalled).To(Equal([]string{"Install"}))
})
ItInstallsJob(act)
})
})
Describe("Apply", func() {
act := func() error { return applier.Apply(job) }
It("return an error if getting file bundle fails", func() {
jobsBc.GetErr = errors.New("fake-get-bundle-error")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-get-bundle-error"))
})
It("returns an error if checking for installed path fails", func() {
bundle.IsInstalledErr = errors.New("fake-is-installed-error")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-is-installed-error"))
})
Context("when job is already installed", func() {
BeforeEach(func() {
bundle.Installed = true
})
It("does not install but only enables job", func() {
err := act()
Expect(err).ToNot(HaveOccurred())
Expect(bundle.ActionsCalled).To(Equal([]string{"Enable"})) // no Install
})
It("returns error when job enable fails", func() {
bundle.EnableError = errors.New("fake-enable-error")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-enable-error"))
})
It("does not download the job template", func() {
err := act()
Expect(err).ToNot(HaveOccurred())
Expect(blobstore.GetBlobIDs).To(BeNil())
})
ItUpdatesPackages(act)
})
Context("when job is not installed", func() {
BeforeEach(func() {
bundle.Installed = false
})
It("installs and enables job", func() {
err := act()
Expect(err).ToNot(HaveOccurred())
Expect(bundle.ActionsCalled).To(Equal([]string{"Install", "Enable"}))
})
It("returns error when job enable fails", func() {
bundle.EnableError = errors.New("fake-enable-error")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-enable-error"))
})
ItInstallsJob(act)
ItUpdatesPackages(act)
})
})
})
Describe("Configure", func() {
It("adds job to the job supervisor", func() {
job, bundle := buildJob(jobsBc)
fs := fakesys.NewFakeFileSystem()
fs.WriteFileString("/path/to/job/monit", "some conf")
fs.SetGlob("/path/to/job/*.monit", []string{"/path/to/job/subjob.monit"})
bundle.GetDirPath = "/path/to/job"
bundle.GetDirFs = fs
err := applier.Configure(job, 0)
Expect(err).ToNot(HaveOccurred())
Expect(2).To(Equal(len(jobSupervisor.AddJobArgs)))
firstArgs := fakejobsuper.AddJobArgs{
Name: job.Name,
Index: 0,
ConfigPath: "/path/to/job/monit",
}
secondArgs := fakejobsuper.AddJobArgs{
Name: job.Name + "_subjob",
Index: 0,
ConfigPath: "/path/to/job/subjob.monit",
}
Expect(firstArgs).To(Equal(jobSupervisor.AddJobArgs[0]))
Expect(secondArgs).To(Equal(jobSupervisor.AddJobArgs[1]))
})
})
Describe("KeepOnly", func() {
It("first disables and then uninstalls jobs that are not in keeponly list", func() {
_, bundle1 := buildJob(jobsBc)
job2, bundle2 := buildJob(jobsBc)
_, bundle3 := buildJob(jobsBc)
job4, bundle4 := buildJob(jobsBc)
jobsBc.ListBundles = []boshbc.Bundle{bundle1, bundle2, bundle3, bundle4}
err := applier.KeepOnly([]models.Job{job4, job2})
Expect(err).ToNot(HaveOccurred())
Expect(bundle1.ActionsCalled).To(Equal([]string{"Disable", "Uninstall"}))
Expect(bundle2.ActionsCalled).To(Equal([]string{}))
Expect(bundle3.ActionsCalled).To(Equal([]string{"Disable", "Uninstall"}))
Expect(bundle4.ActionsCalled).To(Equal([]string{}))
})
It("returns error when bundle collection fails to return list of installed bundles", func() {
jobsBc.ListErr = errors.New("fake-bc-list-error")
err := applier.KeepOnly([]models.Job{})
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-bc-list-error"))
})
It("returns error when bundle collection cannot retrieve bundle for keep-only job", func() {
job1, bundle1 := buildJob(jobsBc)
jobsBc.ListBundles = []boshbc.Bundle{bundle1}
jobsBc.GetErr = errors.New("fake-bc-get-error")
err := applier.KeepOnly([]models.Job{job1})
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-bc-get-error"))
})
It("returns error when at least one bundle cannot be disabled", func() {
_, bundle1 := buildJob(jobsBc)
jobsBc.ListBundles = []boshbc.Bundle{bundle1}
bundle1.DisableErr = errors.New("fake-bc-disable-error")
err := applier.KeepOnly([]models.Job{})
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-bc-disable-error"))
})
It("returns error when at least one bundle cannot be uninstalled", func() {
_, bundle1 := buildJob(jobsBc)
jobsBc.ListBundles = []boshbc.Bundle{bundle1}
bundle1.UninstallErr = errors.New("fake-bc-uninstall-error")
err := applier.KeepOnly([]models.Job{})
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-bc-uninstall-error"))
})
})
})
}
func init() {
Describe("concreteCompiler", func() {
var (
compiler Compiler
compressor *fakecmd.FakeCompressor
blobstore *fakeblobstore.FakeBlobstore
fs *fakesys.FakeFileSystem
runner *fakesys.FakeCmdRunner
packageApplier *fakepa.FakePackageApplier
packagesBc *fakebc.FakeBundleCollection
)
BeforeEach(func() {
compressor = fakecmd.NewFakeCompressor()
blobstore = &fakeblobstore.FakeBlobstore{}
fs = fakesys.NewFakeFileSystem()
runner = fakesys.NewFakeCmdRunner()
packageApplier = fakepa.NewFakePackageApplier()
packagesBc = fakebc.NewFakeBundleCollection()
compiler = NewConcreteCompiler(
compressor,
blobstore,
fs,
runner,
FakeCompileDirProvider{Dir: "/fake-compile-dir"},
packageApplier,
packagesBc,
)
})
BeforeEach(func() {
fs.MkdirAll("/fake-compile-dir", os.ModePerm)
})
Describe("Compile", func() {
var (
bundle *fakebc.FakeBundle
pkg Package
pkgDeps []boshmodels.Package
)
BeforeEach(func() {
bundle = packagesBc.FakeGet(boshmodels.Package{
Name: "pkg_name",
Version: "pkg_version",
})
bundle.InstallPath = "/fake-dir/data/packages/pkg_name/pkg_version"
bundle.EnablePath = "/fake-dir/packages/pkg_name"
compressor.CompressFilesInDirTarballPath = "/tmp/compressed-compiled-package"
pkg, pkgDeps = getCompileArgs()
})
It("returns blob id and sha1 of created compiled package", func() {
blobstore.CreateBlobID = "fake-blob-id"
blobstore.CreateFingerprint = "fake-blob-sha1"
blobID, sha1, err := compiler.Compile(pkg, pkgDeps)
Expect(err).ToNot(HaveOccurred())
Expect(blobID).To(Equal("fake-blob-id"))
Expect(sha1).To(Equal("fake-blob-sha1"))
})
It("cleans up all packages before applying dependent packages", func() {
_, _, err := compiler.Compile(pkg, pkgDeps)
Expect(err).ToNot(HaveOccurred())
Expect(packageApplier.ActionsCalled).To(Equal([]string{"KeepOnly", "Apply", "Apply"}))
Expect(packageApplier.KeptOnlyPackages).To(BeEmpty())
})
It("returns an error if cleaning up packages fails", func() {
packageApplier.KeepOnlyErr = errors.New("fake-keep-only-error")
_, _, err := compiler.Compile(pkg, pkgDeps)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-keep-only-error"))
})
It("fetches source package from blobstore", func() {
_, _, err := compiler.Compile(pkg, pkgDeps)
Expect(err).ToNot(HaveOccurred())
Expect(blobstore.GetBlobIDs[0]).To(Equal("blobstore_id"))
Expect(blobstore.GetFingerprints[0]).To(Equal("sha1"))
})
It("returns an error if removing compile target directory during uncompression fails", func() {
fs.RegisterRemoveAllError("/fake-compile-dir/pkg_name", errors.New("fake-remove-error"))
_, _, err := compiler.Compile(pkg, pkgDeps)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-remove-error"))
})
It("returns an error if creating compile target directory during uncompression fails", func() {
fs.RegisterMkdirAllError("/fake-compile-dir/pkg_name", errors.New("fake-mkdir-error"))
_, _, err := compiler.Compile(pkg, pkgDeps)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-mkdir-error"))
})
It("returns an error if removing temporary compile target directory during uncompression fails", func() {
fs.RegisterRemoveAllError("/fake-compile-dir/pkg_name-bosh-agent-unpack", errors.New("fake-remove-error"))
_, _, err := compiler.Compile(pkg, pkgDeps)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-remove-error"))
})
It("returns an error if creating temporary compile target directory during uncompression fails", func() {
fs.RegisterMkdirAllError("/fake-compile-dir/pkg_name-bosh-agent-unpack", errors.New("fake-mkdir-error"))
_, _, err := compiler.Compile(pkg, pkgDeps)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-mkdir-error"))
})
It("installs dependent packages", func() {
_, _, err := compiler.Compile(pkg, pkgDeps)
Expect(err).ToNot(HaveOccurred())
Expect(packageApplier.AppliedPackages).To(Equal(pkgDeps))
})
It("extracts source package to compile dir", func() {
_, _, err := compiler.Compile(pkg, pkgDeps)
Expect(err).ToNot(HaveOccurred())
Expect(fs.FileExists("/fake-compile-dir/pkg_name")).To(BeTrue())
Expect(compressor.DecompressFileToDirDirs[0]).To(Equal("/fake-compile-dir/pkg_name-bosh-agent-unpack"))
Expect(compressor.DecompressFileToDirTarballPaths[0]).To(Equal(blobstore.GetFileName))
Expect(fs.RenameOldPaths[0]).To(Equal("/fake-compile-dir/pkg_name-bosh-agent-unpack"))
Expect(fs.RenameNewPaths[0]).To(Equal("/fake-compile-dir/pkg_name"))
})
It("installs, enables and later cleans up bundle", func() {
_, _, err := compiler.Compile(pkg, pkgDeps)
Expect(err).ToNot(HaveOccurred())
Expect(bundle.ActionsCalled).To(Equal([]string{
"InstallWithoutContents",
"Enable",
"Disable",
"Uninstall",
}))
})
It("runs packaging script when packaging script exists", func() {
compressor.DecompressFileToDirCallBack = func() {
fs.WriteFileString("/fake-compile-dir/pkg_name/packaging", "hi")
}
_, _, err := compiler.Compile(pkg, pkgDeps)
Expect(err).ToNot(HaveOccurred())
expectedCmd := boshsys.Command{
Name: "bash",
Args: []string{"-x", "packaging"},
Env: map[string]string{
"BOSH_COMPILE_TARGET": "/fake-compile-dir/pkg_name",
"BOSH_INSTALL_TARGET": "/fake-dir/packages/pkg_name",
"BOSH_PACKAGE_NAME": "pkg_name",
"BOSH_PACKAGE_VERSION": "pkg_version",
},
WorkingDir: "/fake-compile-dir/pkg_name",
}
Expect(len(runner.RunComplexCommands)).To(Equal(1))
Expect(runner.RunComplexCommands[0]).To(Equal(expectedCmd))
})
It("does not run packaging script when script does not exist", func() {
_, _, err := compiler.Compile(pkg, pkgDeps)
Expect(err).ToNot(HaveOccurred())
Expect(runner.RunCommands).To(BeEmpty())
})
It("compresses compiled package", func() {
_, _, err := compiler.Compile(pkg, pkgDeps)
Expect(err).ToNot(HaveOccurred())
Expect(compressor.CompressFilesInDirDir).To(Equal("/fake-dir/data/packages/pkg_name/pkg_version"))
})
It("uploads compressed package to blobstore", func() {
compressor.CompressFilesInDirTarballPath = "/tmp/compressed-compiled-package"
_, _, err := compiler.Compile(pkg, pkgDeps)
Expect(err).ToNot(HaveOccurred())
Expect(blobstore.CreateFileName).To(Equal("/tmp/compressed-compiled-package"))
})
It("returs error if uploading compressed package fails", func() {
blobstore.CreateErr = errors.New("fake-create-err")
_, _, err := compiler.Compile(pkg, pkgDeps)
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-create-err"))
})
It("cleans up compressed package after uploading it to blobstore", func() {
var beforeCleanUpTarballPath, afterCleanUpTarballPath string
blobstore.CreateCallBack = func() {
beforeCleanUpTarballPath = compressor.CleanUpTarballPath
}
_, _, err := compiler.Compile(pkg, pkgDeps)
Expect(err).ToNot(HaveOccurred())
// Compressed package is not cleaned up before blobstore upload
Expect(beforeCleanUpTarballPath).To(Equal(""))
// Deleted after it was uploaded
afterCleanUpTarballPath = compressor.CleanUpTarballPath
Expect(afterCleanUpTarballPath).To(Equal("/tmp/compressed-compiled-package"))
})
})
})
}
func init() {
Describe("concretePackageApplier", func() {
var (
packagesBc *fakebc.FakeBundleCollection
blobstore *fakeblob.FakeBlobstore
compressor *fakecmd.FakeCompressor
fs *fakesys.FakeFileSystem
logger boshlog.Logger
applier PackageApplier
)
BeforeEach(func() {
packagesBc = fakebc.NewFakeBundleCollection()
blobstore = fakeblob.NewFakeBlobstore()
compressor = fakecmd.NewFakeCompressor()
fs = fakesys.NewFakeFileSystem()
logger = boshlog.NewLogger(boshlog.LevelNone)
applier = NewConcretePackageApplier(packagesBc, true, blobstore, compressor, fs, logger)
})
Describe("Prepare & Apply", func() {
var (
pkg models.Package
bundle *fakebc.FakeBundle
)
BeforeEach(func() {
pkg, bundle = buildPkg(packagesBc)
})
ItInstallsPkg := func(act func() error) {
It("returns error when installing package fails", func() {
bundle.InstallError = errors.New("fake-install-error")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-install-error"))
})
It("downloads and later cleans up downloaded package blob", func() {
blobstore.GetFileName = "/fake-blobstore-file-name"
err := act()
Expect(err).ToNot(HaveOccurred())
Expect(blobstore.GetBlobIDs[0]).To(Equal("fake-blobstore-id"))
Expect(blobstore.GetFingerprints[0]).To(Equal("fake-blob-sha1"))
// downloaded file is cleaned up
Expect(blobstore.CleanUpFileName).To(Equal("/fake-blobstore-file-name"))
})
It("returns error when downloading package blob fails", func() {
blobstore.GetError = errors.New("fake-get-error")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-get-error"))
})
It("decompresses package blob to tmp path and later cleans it up", func() {
fs.TempDirDir = "/fake-tmp-dir"
blobstore.GetFileName = "/fake-blobstore-file-name"
var tmpDirExistsBeforeInstall bool
bundle.InstallCallBack = func() {
tmpDirExistsBeforeInstall = true
}
err := act()
Expect(err).ToNot(HaveOccurred())
Expect(compressor.DecompressFileToDirTarballPaths[0]).To(Equal("/fake-blobstore-file-name"))
Expect(compressor.DecompressFileToDirDirs[0]).To(Equal("/fake-tmp-dir"))
// tmp dir exists before bundle install
Expect(tmpDirExistsBeforeInstall).To(BeTrue())
// tmp dir is cleaned up after install
Expect(fs.FileExists(fs.TempDirDir)).To(BeFalse())
})
It("returns error when temporary directory creation fails", func() {
fs.TempDirError = errors.New("fake-filesystem-tempdir-error")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-filesystem-tempdir-error"))
})
It("returns error when decompressing package blob fails", func() {
compressor.DecompressFileToDirErr = errors.New("fake-decompress-error")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-decompress-error"))
})
It("installs bundle from decompressed tmp path of a package blob", func() {
fs.TempDirDir = "/fake-tmp-dir"
var installedBeforeDecompression bool
compressor.DecompressFileToDirCallBack = func() {
installedBeforeDecompression = bundle.Installed
}
err := act()
Expect(err).ToNot(HaveOccurred())
// bundle installation did not happen before decompression
Expect(installedBeforeDecompression).To(BeFalse())
// make sure that bundle install happened after decompression
Expect(bundle.InstallSourcePath).To(Equal("/fake-tmp-dir"))
})
}
Describe("Prepare", func() {
act := func() error { return applier.Prepare(pkg) }
It("return an error if getting file bundle fails", func() {
packagesBc.GetErr = errors.New("fake-get-bundle-error")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-get-bundle-error"))
})
It("returns an error if checking for package installation fails", func() {
bundle.IsInstalledErr = errors.New("fake-is-installed-error")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-is-installed-error"))
})
Context("when package is already installed", func() {
BeforeEach(func() {
bundle.Installed = true
})
It("does not install", func() {
err := act()
Expect(err).ToNot(HaveOccurred())
Expect(bundle.ActionsCalled).To(Equal([]string{})) // no Install
})
It("does not download the package", func() {
err := act()
Expect(err).ToNot(HaveOccurred())
Expect(blobstore.GetBlobIDs).To(BeNil())
})
})
Context("when package is not installed", func() {
BeforeEach(func() {
bundle.Installed = false
})
It("installs package (but does not enable it)", func() {
err := act()
Expect(err).ToNot(HaveOccurred())
Expect(bundle.ActionsCalled).To(Equal([]string{"Install"}))
})
ItInstallsPkg(act)
})
})
Describe("Apply", func() {
act := func() error { return applier.Apply(pkg) }
It("return an error if getting file bundle fails", func() {
packagesBc.GetErr = errors.New("fake-get-bundle-error")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-get-bundle-error"))
})
It("returns an error if checking for package installation fails", func() {
bundle.IsInstalledErr = errors.New("fake-is-installed-error")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-is-installed-error"))
})
Context("when package is already installed", func() {
BeforeEach(func() {
bundle.Installed = true
})
It("does not install but only enables package", func() {
err := act()
Expect(err).ToNot(HaveOccurred())
Expect(bundle.ActionsCalled).To(Equal([]string{"Enable"})) // no Install
})
It("returns error when package enable fails", func() {
bundle.EnableError = errors.New("fake-enable-error")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-enable-error"))
})
It("does not download the package", func() {
err := act()
Expect(err).ToNot(HaveOccurred())
Expect(blobstore.GetBlobIDs).To(BeNil())
})
})
Context("when package is not installed", func() {
BeforeEach(func() {
bundle.Installed = false
})
It("installs and enables package", func() {
err := act()
Expect(err).ToNot(HaveOccurred())
Expect(bundle.ActionsCalled).To(Equal([]string{"Install", "Enable"}))
})
It("returns error when package enable fails", func() {
bundle.EnableError = errors.New("fake-enable-error")
err := act()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-enable-error"))
})
ItInstallsPkg(act)
})
})
})
Describe("KeepOnly", func() {
ItReturnsErrors := func() {
It("returns error when bundle collection fails to return list of installed bundles", func() {
packagesBc.ListErr = errors.New("fake-bc-list-error")
err := applier.KeepOnly([]models.Package{})
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-bc-list-error"))
})
It("returns error when bundle collection cannot retrieve bundle for keep-only package", func() {
pkg1, bundle1 := buildPkg(packagesBc)
packagesBc.ListBundles = []boshbc.Bundle{bundle1}
packagesBc.GetErr = errors.New("fake-bc-get-error")
err := applier.KeepOnly([]models.Package{pkg1})
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-bc-get-error"))
})
It("returns error when at least one bundle cannot be disabled", func() {
_, bundle1 := buildPkg(packagesBc)
packagesBc.ListBundles = []boshbc.Bundle{bundle1}
bundle1.DisableErr = errors.New("fake-bc-disable-error")
err := applier.KeepOnly([]models.Package{})
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-bc-disable-error"))
})
}
Context("when operating on packages as a package owner", func() {
BeforeEach(func() {
applier = NewConcretePackageApplier(packagesBc, true, blobstore, compressor, fs, logger)
})
It("first disables and then uninstalls packages that are not in keeponly list", func() {
_, bundle1 := buildPkg(packagesBc)
pkg2, bundle2 := buildPkg(packagesBc)
_, bundle3 := buildPkg(packagesBc)
pkg4, bundle4 := buildPkg(packagesBc)
packagesBc.ListBundles = []boshbc.Bundle{bundle1, bundle2, bundle3, bundle4}
err := applier.KeepOnly([]models.Package{pkg4, pkg2})
Expect(err).ToNot(HaveOccurred())
Expect(bundle1.ActionsCalled).To(Equal([]string{"Disable", "Uninstall"}))
Expect(bundle2.ActionsCalled).To(Equal([]string{}))
Expect(bundle3.ActionsCalled).To(Equal([]string{"Disable", "Uninstall"}))
Expect(bundle4.ActionsCalled).To(Equal([]string{}))
})
ItReturnsErrors()
It("returns error when at least one bundle cannot be uninstalled", func() {
_, bundle1 := buildPkg(packagesBc)
packagesBc.ListBundles = []boshbc.Bundle{bundle1}
bundle1.UninstallErr = errors.New("fake-bc-uninstall-error")
err := applier.KeepOnly([]models.Package{})
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("fake-bc-uninstall-error"))
})
})
Context("when operating on packages not as a package owner", func() {
BeforeEach(func() {
applier = NewConcretePackageApplier(packagesBc, false, blobstore, compressor, fs, logger)
})
It("disables and but does not uninstall packages that are not in keeponly list", func() {
_, bundle1 := buildPkg(packagesBc)
pkg2, bundle2 := buildPkg(packagesBc)
_, bundle3 := buildPkg(packagesBc)
pkg4, bundle4 := buildPkg(packagesBc)
packagesBc.ListBundles = []boshbc.Bundle{bundle1, bundle2, bundle3, bundle4}
err := applier.KeepOnly([]models.Package{pkg4, pkg2})
Expect(err).ToNot(HaveOccurred())
Expect(bundle1.ActionsCalled).To(Equal([]string{"Disable"})) // no Uninstall
Expect(bundle2.ActionsCalled).To(Equal([]string{}))
Expect(bundle3.ActionsCalled).To(Equal([]string{"Disable"})) // no Uninstall
Expect(bundle4.ActionsCalled).To(Equal([]string{}))
})
ItReturnsErrors()
})
})
})
}
func buildPackage(pkgBc *fakebc.FakeBundleCollection) (pkg models.Package, bundle *fakebc.FakeBundle) {
pkg = models.Package{Name: "fake-package-name", Version: "fake-package-name"}
bundle = pkgBc.FakeGet(pkg)
return
}
func buildJob(jobsBc *fakebc.FakeBundleCollection) (job models.Job, bundle *fakebc.FakeBundle) {
job = models.Job{Name: "fake-job-name", Version: "fake-job-version"}
bundle = jobsBc.FakeGet(job)
return
}