diff options
Diffstat (limited to 'internal/app/state/segment_test.go')
| -rw-r--r-- | internal/app/state/segment_test.go | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/internal/app/state/segment_test.go b/internal/app/state/segment_test.go new file mode 100644 index 00000000..307943ac --- /dev/null +++ b/internal/app/state/segment_test.go @@ -0,0 +1,255 @@ +package state + +import ( + "errors" + "iter" + "os" + "reflect" + "slices" + "strings" + "syscall" + "testing" + + "hakurei.app/container/check" + "hakurei.app/container/stub" + "hakurei.app/hst" + "hakurei.app/internal/lockedfile" +) + +func TestStateEntryHandle(t *testing.T) { + t.Parallel() + + t.Run("lockout", func(t *testing.T) { + t.Parallel() + wantErr := func() error { return stub.UniqueError(0) } + eh := stateEntryHandle{decodeErr: wantErr(), pathname: check.MustAbs("/proc/nonexistent")} + + if _, err := eh.open(-1, 0); !reflect.DeepEqual(err, wantErr()) { + t.Errorf("open: error = %v, want %v", err, wantErr()) + } + if err := eh.destroy(); !reflect.DeepEqual(err, wantErr()) { + t.Errorf("destroy: error = %v, want %v", err, wantErr()) + } + if err := eh.save(nil); !reflect.DeepEqual(err, wantErr()) { + t.Errorf("save: error = %v, want %v", err, wantErr()) + } + if _, err := eh.load(nil); !reflect.DeepEqual(err, wantErr()) { + t.Errorf("load: error = %v, want %v", err, wantErr()) + } + }) + + t.Run("od", func(t *testing.T) { + t.Parallel() + + { + eh := stateEntryHandle{pathname: check.MustAbs(t.TempDir()).Append("entry")} + if f, err := eh.open(os.O_CREATE|syscall.O_EXCL, 0); err != nil { + t.Fatalf("open: error = %v", err) + } else if err = f.Close(); err != nil { + t.Errorf("Close: error = %v", err) + } + if err := eh.destroy(); err != nil { + t.Fatalf("destroy: error = %v", err) + } + } + + t.Run("nonexistent", func(t *testing.T) { + t.Parallel() + eh := stateEntryHandle{pathname: check.MustAbs("/proc/nonexistent")} + + wantErrOpen := &hst.AppError{Step: "open state entry", + Err: &os.PathError{Op: "open", Path: "/proc/nonexistent", Err: syscall.ENOENT}} + if _, err := eh.open(os.O_CREATE|syscall.O_EXCL, 0); !reflect.DeepEqual(err, wantErrOpen) { + t.Errorf("open: error = %#v, want %#v", err, wantErrOpen) + } + + wantErrDestroy := &hst.AppError{Step: "destroy state entry", + Err: &os.PathError{Op: "remove", Path: "/proc/nonexistent", Err: syscall.ENOENT}} + if err := eh.destroy(); !reflect.DeepEqual(err, wantErrDestroy) { + t.Errorf("destroy: error = %#v, want %#v", err, wantErrDestroy) + } + }) + }) + + t.Run("saveload", func(t *testing.T) { + t.Parallel() + eh := stateEntryHandle{pathname: check.MustAbs(t.TempDir()).Append("entry"), + ID: newTemplateState().ID} + + if err := eh.save(newTemplateState()); err != nil { + t.Fatalf("save: error = %v", err) + } + + t.Run("validate", func(t *testing.T) { + t.Parallel() + + t.Run("internal", func(t *testing.T) { + t.Parallel() + + var got hst.State + if f, err := os.Open(eh.pathname.String()); err != nil { + t.Fatal(err.Error()) + } else if _, err = entryDecode(f, &got); err != nil { + t.Fatalf("entryDecode: error = %v", err) + } else if err = f.Close(); err != nil { + t.Fatal(f.Close()) + } + + if want := newTemplateState(); !reflect.DeepEqual(&got, want) { + t.Errorf("entryDecode: %#v, want %#v", &got, want) + } + }) + + t.Run("load header only", func(t *testing.T) { + t.Parallel() + + if et, err := eh.load(nil); err != nil { + t.Fatalf("load: error = %v", err) + } else if want := newTemplateState().Enablements.Unwrap(); et != want { + t.Errorf("load: et = %x, want %x", et, want) + } + }) + + t.Run("load", func(t *testing.T) { + t.Parallel() + + var got hst.State + if _, err := eh.load(&got); err != nil { + t.Fatalf("load: error = %v", err) + } else if want := newTemplateState(); !reflect.DeepEqual(&got, want) { + t.Errorf("load: %#v, want %#v", &got, want) + } + }) + + t.Run("load inconsistent", func(t *testing.T) { + t.Parallel() + wantErr := &hst.AppError{Step: "validate state identifier", Err: os.ErrInvalid, + Msg: "state entry 00000000000000000000000000000000 has unexpected id aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"} + + ehi := stateEntryHandle{pathname: eh.pathname} + if _, err := ehi.load(new(hst.State)); !reflect.DeepEqual(err, wantErr) { + t.Errorf("load: error = %#v, want %#v", err, wantErr) + } + }) + }) + }) +} + +func TestStoreHandle(t *testing.T) { + t.Parallel() + + testCases := []struct { + name string + ents [2][]string + want func(newEh func(err error, name string) *stateEntryHandle) []*stateEntryHandle + ext func(t *testing.T, entries iter.Seq[*stateEntryHandle], n int) + }{ + {"errors", [2][]string{{ + "e81eb203b4190ac5c3842ef44d429945", + "lock", + "f0-invalid", + }, { + "f1-directory", + }}, func(newEh func(err error, name string) *stateEntryHandle) []*stateEntryHandle { + return []*stateEntryHandle{ + newEh(nil, "e81eb203b4190ac5c3842ef44d429945"), + newEh(&hst.AppError{Step: "decode store segment entry", + Err: hst.IdentifierDecodeError{Err: hst.ErrIdentifierLength}}, "f0-invalid"), + newEh(&hst.AppError{Step: "read store segment entries", + Err: errors.New(`unexpected directory "f1-directory" in store`)}, "f1-directory"), + } + }, nil}, + + {"success", [2][]string{{ + "e81eb203b4190ac5c3842ef44d429945", + "7958cfbb9272d9cf9cfd61c85afa13f1", + "d0b5f7446dd5bd3424ff2f7ac9cace1e", + "c8c8e2c4aea5c32fe47240ff8caa874e", + "fa0d30b249d80f155a1f80ceddcc32f2", + "lock", + }}, func(newEh func(err error, name string) *stateEntryHandle) []*stateEntryHandle { + return []*stateEntryHandle{ + newEh(nil, "7958cfbb9272d9cf9cfd61c85afa13f1"), + newEh(nil, "c8c8e2c4aea5c32fe47240ff8caa874e"), + newEh(nil, "d0b5f7446dd5bd3424ff2f7ac9cace1e"), + newEh(nil, "e81eb203b4190ac5c3842ef44d429945"), + newEh(nil, "fa0d30b249d80f155a1f80ceddcc32f2"), + } + }, func(t *testing.T, entries iter.Seq[*stateEntryHandle], n int) { + if n != 5 { + t.Fatalf("entries: n = %d", n) + } + + // check partial drain + for range entries { + break + } + }}, + } + for _, tc := range testCases { + t.Run(tc.name, func(t *testing.T) { + t.Parallel() + + p := check.MustAbs(t.TempDir()).Append("segment") + if err := os.Mkdir(p.String(), 0700); err != nil { + t.Fatal(err.Error()) + } + + for _, s := range tc.ents[0] { + if f, err := os.OpenFile(p.Append(s).String(), os.O_CREATE|os.O_EXCL, 0600); err != nil { + t.Fatal(err.Error()) + } else if err = f.Close(); err != nil { + t.Fatal(err.Error()) + } + } + for _, s := range tc.ents[1] { + if err := os.Mkdir(p.Append(s).String(), 0700); err != nil { + t.Fatal(err.Error()) + } + } + + var got []*stateEntryHandle + if entries, n, err := (&storeHandle{ + identity: -0xbad, + path: p, + fileMu: lockedfile.MutexAt(p.Append("lock").String()), + }).entries(); err != nil { + t.Fatalf("entries: error = %v", err) + } else { + got = slices.AppendSeq(make([]*stateEntryHandle, 0, n), entries) + if tc.ext != nil { + tc.ext(t, entries, n) + } + } + + slices.SortFunc(got, func(a, b *stateEntryHandle) int { return strings.Compare(a.pathname.String(), b.pathname.String()) }) + want := tc.want(func(err error, name string) *stateEntryHandle { + eh := stateEntryHandle{decodeErr: err, pathname: p.Append(name)} + if err == nil { + if err = eh.UnmarshalText([]byte(name)); err != nil { + t.Fatalf("UnmarshalText: error = %v", err) + } + } + return &eh + }) + + if !reflect.DeepEqual(got, want) { + t.Errorf("entries: %q, want %q", got, want) + } + }) + } + + t.Run("nonexistent", func(t *testing.T) { + var wantErr = &hst.AppError{Step: "read store segment entries", Err: &os.PathError{ + Op: "open", + Path: "/proc/nonexistent", + Err: syscall.ENOENT, + }} + if _, _, err := (&storeHandle{ + identity: -0xbad, + path: check.MustAbs("/proc/nonexistent"), + }).entries(); !reflect.DeepEqual(err, wantErr) { + t.Fatalf("entries: error = %#v, want %#v", err, wantErr) + } + }) +} |
