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Add sanity check for revision numbers
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,181 @@ | ||
| package validator_test | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "os" | ||
| "path" | ||
|
|
||
| "github.com/gardener/etcd-backup-restore/pkg/snapstore" | ||
| . "github.com/onsi/ginkgo" | ||
| . "github.com/onsi/gomega" | ||
| "github.com/sirupsen/logrus" | ||
|
|
||
| . "github.com/gardener/etcd-backup-restore/pkg/initializer/validator" | ||
| ) | ||
|
|
||
| var _ = Describe("Running Datavalidator", func() { | ||
| var ( | ||
| restoreDataDir string | ||
| snapstoreBackupDir string | ||
| snapstoreConfig *snapstore.Config | ||
| logger *logrus.Logger | ||
| validator *DataValidator | ||
| ) | ||
|
|
||
| BeforeEach(func() { | ||
| logger = logrus.New() | ||
| restoreDataDir = path.Clean(etcdDir) | ||
| snapstoreBackupDir = path.Clean(snapstoreDir) | ||
|
|
||
| snapstoreConfig = &snapstore.Config{ | ||
| Container: snapstoreBackupDir, | ||
| Provider: "Local", | ||
| } | ||
|
|
||
| validator = &DataValidator{ | ||
| Config: &Config{ | ||
| DataDir: restoreDataDir, | ||
| SnapstoreConfig: snapstoreConfig, | ||
| }, | ||
| Logger: logger, | ||
| } | ||
| }) | ||
| Context("with missing data directory", func() { | ||
| It("should return DataDirStatus as DataDirectoryNotExist or DataDirectoryError, and non-nil error", func() { | ||
| tempDir := fmt.Sprintf("%s.%s", restoreDataDir, "temp") | ||
| err = os.Rename(restoreDataDir, tempDir) | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
| dataDirStatus, err := validator.Validate() | ||
| Expect(err).Should(HaveOccurred()) | ||
| Expect(int(dataDirStatus)).Should(SatisfyAny(Equal(DataDirectoryNotExist), Equal(DataDirectoryError))) | ||
| err = os.Rename(tempDir, restoreDataDir) | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
| }) | ||
| }) | ||
|
|
||
| Context("with data directory present", func() { | ||
| Context("with incorrect data directory structure", func() { | ||
| Context("with missing member directory", func() { | ||
| It("should return DataDirStatus as DataDirectoryInvStruct or DataDirectoryError, and nil error", func() { | ||
| memberDir := path.Join(restoreDataDir, "member") | ||
| tempDir := fmt.Sprintf("%s.%s", memberDir, "temp") | ||
| err = os.Rename(memberDir, tempDir) | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
| dataDirStatus, err := validator.Validate() | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
| Expect(int(dataDirStatus)).Should(SatisfyAny(Equal(DataDirectoryInvStruct), Equal(DataDirectoryError))) | ||
| err = os.Rename(tempDir, memberDir) | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
| }) | ||
| }) | ||
| Context("with member directory present", func() { | ||
| Context("with missing snap directory", func() { | ||
| It("should return DataDirStatus as DataDirectoryInvStruct or DataDirectoryError, and nil error", func() { | ||
| snapDir := path.Join(restoreDataDir, "member", "snap") | ||
| tempDir := fmt.Sprintf("%s.%s", snapDir, "temp") | ||
| err = os.Rename(snapDir, tempDir) | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
| dataDirStatus, err := validator.Validate() | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
| Expect(int(dataDirStatus)).Should(SatisfyAny(Equal(DataDirectoryInvStruct), Equal(DataDirectoryError))) | ||
| err = os.Rename(tempDir, snapDir) | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
| }) | ||
| }) | ||
| Context("with missing wal directory", func() { | ||
| It("should return DataDirStatus as DataDirectoryInvStruct or DataDirectoryError, and nil error", func() { | ||
| walDir := path.Join(restoreDataDir, "member", "wal") | ||
| tempDir := fmt.Sprintf("%s.%s", walDir, "temp") | ||
| err = os.Rename(walDir, tempDir) | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
| dataDirStatus, err := validator.Validate() | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
| Expect(int(dataDirStatus)).Should(SatisfyAny(Equal(DataDirectoryInvStruct), Equal(DataDirectoryError))) | ||
| err = os.Rename(tempDir, walDir) | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
| }) | ||
| }) | ||
| }) | ||
| }) | ||
| Context("with correct data directory structure", func() { | ||
| Context("with inconsistent revision numbers between etcd and latest snapshot", func() { | ||
| It("should return DataDirStatus as RevisionConsistencyError or DataDirectoryError, and nil error", func() { | ||
| tempDir := fmt.Sprintf("%s.%s", restoreDataDir, "temp") | ||
| err = os.Rename(restoreDataDir, tempDir) | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
|
|
||
| // start etcd | ||
| etcd, err = startEmbeddedEtcd(restoreDataDir, logger) | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
| // populate etcd but with lesser data than previous populate call, so that the new db has a lower revision | ||
| newEtcdRevision, err := populateEtcdFinite(logger, endpoints, keyFrom, int(keyTo/2)) | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
|
|
||
| etcd.Server.Stop() | ||
| etcd.Close() | ||
|
|
||
| fmt.Printf("\nPrev etcd revision: %d\nNew etcd revision: %d\n", etcdRevision, newEtcdRevision) | ||
|
|
||
| // etcdRevision: latest revision number on the snapstore (etcd backup) | ||
| // newEtcdRevision: current revision number on etcd db | ||
| Expect(etcdRevision).To(BeNumerically(">=", newEtcdRevision)) | ||
|
|
||
| dataDirStatus, err := validator.Validate() | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
| Expect(int(dataDirStatus)).Should(SatisfyAny(Equal(RevisionConsistencyError), Equal(DataDirectoryError))) | ||
|
|
||
| err = os.RemoveAll(restoreDataDir) | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
|
|
||
| err = os.Rename(tempDir, restoreDataDir) | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
| }) | ||
| }) | ||
| Context("with consistent revision numbers between etcd and latest snapshot", func() { | ||
| Context("with corrupt data directory", func() { | ||
| Context("with corrupt db file", func() { | ||
| It("should return DataDirStatus as DataDirectoryCorrupt or DataDirectoryError or RevisionConsistencyError, and nil error", func() { | ||
| dbFile := path.Join(restoreDataDir, "member", "snap", "db") | ||
| _, err = os.Stat(dbFile) | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
|
|
||
| tempFile := path.Join(outputDir, "temp", "db") | ||
| err = copyFile(dbFile, tempFile) | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
|
|
||
| file, err := os.OpenFile( | ||
| dbFile, | ||
| os.O_WRONLY|os.O_TRUNC|os.O_CREATE, | ||
| 0666, | ||
| ) | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
| defer file.Close() | ||
|
|
||
| // corrupt the db file by writing random data to it | ||
| byteSlice := []byte("Random data!\n") | ||
| _, err = file.Write(byteSlice) | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
|
|
||
| dataDirStatus, err := validator.Validate() | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
| Expect(int(dataDirStatus)).Should(SatisfyAny(Equal(DataDirectoryCorrupt), Equal(DataDirectoryError), Equal(RevisionConsistencyError))) | ||
|
|
||
| err = os.Remove(dbFile) | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
|
|
||
| err = os.Rename(tempFile, dbFile) | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
| }) | ||
| }) | ||
| }) | ||
| Context("with clean data directory", func() { | ||
| It("should return DataDirStatus as DataDirectoryValid, and nil error", func() { | ||
| dataDirStatus, err := validator.Validate() | ||
| Expect(err).ShouldNot(HaveOccurred()) | ||
| Expect(int(dataDirStatus)).Should(Equal(DataDirectoryValid)) | ||
| }) | ||
| }) | ||
| }) | ||
| }) | ||
| }) | ||
| }) |
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