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|
package store
import (
"bytes"
"errors"
"io"
"io/fs"
"os"
"reflect"
"syscall"
"testing"
"time"
"hakurei.app/hst"
)
func TestEntryHeader(t *testing.T) {
t.Parallel()
testCases := []struct {
name string
data [entryHeaderSize]byte
et hst.Enablements
err error
}{
{"complement mismatch", [entryHeaderSize]byte{0x00, 0xff, 0xca, 0xfe, 0x00, 0x00,
0x0a, 0xf6}, 0,
errors.New("header enablement value is inconsistent")},
{"unexpected revision", [entryHeaderSize]byte{0x00, 0xff, 0xca, 0xfe, 0xff, 0xff}, 0,
errors.New("unexpected revision ffff")},
{"invalid header", [entryHeaderSize]byte{0x00, 0xfe, 0xca, 0xfe}, 0,
errors.New("invalid header 00fecafe")},
{"success high", [entryHeaderSize]byte{0x00, 0xff, 0xca, 0xfe, 0x00, 0x00,
0xff, 0x00}, 0xff, nil},
{"success", [entryHeaderSize]byte{0x00, 0xff, 0xca, 0xfe, 0x00, 0x00,
0x09, 0xf6}, hst.EWayland | hst.EPipeWire, nil},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
t.Run("encode", func(t *testing.T) {
if tc.err != nil {
return
}
t.Parallel()
if got := entryHeaderEncode(tc.et); *got != tc.data {
t.Errorf("entryHeaderEncode: %x, want %x", *got, tc.data)
}
t.Run("write", func(t *testing.T) {
var buf bytes.Buffer
if err := entryWriteHeader(&buf, tc.et); err != nil {
t.Fatalf("entryWriteHeader: error = %v", err)
}
if got := ([entryHeaderSize]byte)(buf.Bytes()); got != tc.data {
t.Errorf("entryWriteHeader: %x, want %x", got, tc.data)
}
})
})
t.Run("decode", func(t *testing.T) {
t.Parallel()
got, err := entryHeaderDecode(&tc.data)
if !reflect.DeepEqual(err, tc.err) {
t.Fatalf("entryHeaderDecode: error = %#v, want %#v", err, tc.err)
}
if err != nil {
return
}
if got != tc.et {
t.Errorf("entryHeaderDecode: et = %q, want %q", got, tc.et)
}
if got, err = entryReadHeader(bytes.NewReader(tc.data[:])); err != nil {
t.Fatalf("entryReadHeader: error = %#v", err)
} else if got != tc.et {
t.Errorf("entryReadHeader: et = %q, want %q", got, tc.et)
}
})
})
}
}
func TestEntrySizeError(t *testing.T) {
t.Parallel()
testCases := []struct {
name string
err error
want string
}{
{"size only", &EntrySizeError{Size: 0xdeadbeef},
`state entry file is too short`},
{"full", &EntrySizeError{Name: "nonexistent", Size: 0xdeadbeef},
`state entry file "nonexistent" is too short`},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
if got := tc.err.Error(); got != tc.want {
t.Errorf("Error: %s, want %s", got, tc.want)
}
})
}
}
func TestEntryCheckFile(t *testing.T) {
t.Parallel()
testCases := []struct {
name string
fi os.FileInfo
err error
}{
{"dir", &stubFi{name: "dir", isDir: true},
syscall.EISDIR},
{"short", stubFi{name: "short", size: 8},
&EntrySizeError{Name: "short", Size: 8}},
{"success", stubFi{size: 9}, nil},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
if err := entryCheckFile(tc.fi); !reflect.DeepEqual(err, tc.err) {
t.Errorf("entryCheckFile: error = %#v, want %#v", err, tc.err)
}
})
}
}
func TestEntryReadHeader(t *testing.T) {
t.Parallel()
testCases := []struct {
name string
newR func() io.Reader
err error
}{
{"eof", func() io.Reader { return bytes.NewReader([]byte{}) }, io.EOF},
{"short", func() io.Reader { return bytes.NewReader([]byte{0}) }, &EntrySizeError{Size: 1}},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
if _, err := entryReadHeader(tc.newR()); !reflect.DeepEqual(err, tc.err) {
t.Errorf("entryReadHeader: error = %#v, want %#v", err, tc.err)
}
})
}
}
// stubFi partially implements [os.FileInfo] using hardcoded values.
type stubFi struct {
name string
size int64
isDir bool
}
func (fi stubFi) Name() string {
if fi.name == "" {
panic("unreachable")
}
return fi.name
}
func (fi stubFi) Size() int64 {
if fi.size < 0 {
panic("unreachable")
}
return fi.size
}
func (fi stubFi) IsDir() bool { return fi.isDir }
func (fi stubFi) Mode() fs.FileMode { panic("unreachable") }
func (fi stubFi) ModTime() time.Time { panic("unreachable") }
func (fi stubFi) Sys() any { panic("unreachable") }
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