mirror of https://github.com/restic/restic.git
140 lines
3.7 KiB
Go
140 lines
3.7 KiB
Go
package repository
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import (
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"context"
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"fmt"
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"os"
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"testing"
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"github.com/restic/restic/internal/backend/local"
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"github.com/restic/restic/internal/backend/mem"
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"github.com/restic/restic/internal/backend/retry"
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"github.com/restic/restic/internal/crypto"
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"github.com/restic/restic/internal/restic"
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"github.com/restic/restic/internal/test"
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"github.com/restic/chunker"
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)
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// testKDFParams are the parameters for the KDF to be used during testing.
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var testKDFParams = crypto.Params{
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N: 128,
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R: 1,
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P: 1,
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}
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type logger interface {
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Logf(format string, args ...interface{})
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}
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// TestUseLowSecurityKDFParameters configures low-security KDF parameters for testing.
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func TestUseLowSecurityKDFParameters(t logger) {
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t.Logf("using low-security KDF parameters for test")
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Params = &testKDFParams
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}
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// TestBackend returns a fully configured in-memory backend.
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func TestBackend(_ testing.TB) restic.Backend {
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return mem.New()
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}
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const TestChunkerPol = chunker.Pol(0x3DA3358B4DC173)
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// TestRepositoryWithBackend returns a repository initialized with a test
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// password. If be is nil, an in-memory backend is used. A constant polynomial
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// is used for the chunker and low-security test parameters.
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func TestRepositoryWithBackend(t testing.TB, be restic.Backend, version uint) restic.Repository {
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t.Helper()
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TestUseLowSecurityKDFParameters(t)
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restic.TestDisableCheckPolynomial(t)
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if be == nil {
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be = TestBackend(t)
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}
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repo, err := New(be, Options{})
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if err != nil {
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t.Fatalf("TestRepository(): new repo failed: %v", err)
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}
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cfg := restic.TestCreateConfig(t, TestChunkerPol, version)
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err = repo.init(context.TODO(), test.TestPassword, cfg)
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if err != nil {
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t.Fatalf("TestRepository(): initialize repo failed: %v", err)
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}
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return repo
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}
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// TestRepository returns a repository initialized with a test password on an
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// in-memory backend. When the environment variable RESTIC_TEST_REPO is set to
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// a non-existing directory, a local backend is created there and this is used
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// instead. The directory is not removed, but left there for inspection.
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func TestRepository(t testing.TB) restic.Repository {
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t.Helper()
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return TestRepositoryWithVersion(t, 0)
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}
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func TestRepositoryWithVersion(t testing.TB, version uint) restic.Repository {
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t.Helper()
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dir := os.Getenv("RESTIC_TEST_REPO")
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if dir != "" {
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_, err := os.Stat(dir)
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if err != nil {
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be, err := local.Create(context.TODO(), local.Config{Path: dir})
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if err != nil {
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t.Fatalf("error creating local backend at %v: %v", dir, err)
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}
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return TestRepositoryWithBackend(t, be, version)
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}
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if err == nil {
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t.Logf("directory at %v already exists, using mem backend", dir)
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}
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}
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return TestRepositoryWithBackend(t, nil, version)
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}
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// TestOpenLocal opens a local repository.
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func TestOpenLocal(t testing.TB, dir string) (r restic.Repository) {
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var be restic.Backend
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be, err := local.Open(context.TODO(), local.Config{Path: dir, Connections: 2})
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if err != nil {
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t.Fatal(err)
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}
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be = retry.New(be, 3, nil, nil)
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repo, err := New(be, Options{})
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if err != nil {
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t.Fatal(err)
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}
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err = repo.SearchKey(context.TODO(), test.TestPassword, 10, "")
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if err != nil {
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t.Fatal(err)
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}
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return repo
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}
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type VersionedTest func(t *testing.T, version uint)
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func TestAllVersions(t *testing.T, test VersionedTest) {
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for version := restic.MinRepoVersion; version <= restic.MaxRepoVersion; version++ {
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t.Run(fmt.Sprintf("v%d", version), func(t *testing.T) {
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test(t, uint(version))
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})
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}
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}
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type VersionedBenchmark func(b *testing.B, version uint)
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func BenchmarkAllVersions(b *testing.B, bench VersionedBenchmark) {
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for version := restic.MinRepoVersion; version <= restic.MaxRepoVersion; version++ {
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b.Run(fmt.Sprintf("v%d", version), func(b *testing.B) {
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bench(b, uint(version))
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})
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}
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}
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