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package hotline
import (
"encoding/binary"
"fmt"
"testing"
"github.com/stretchr/testify/assert"
)
func TestFlatFileInformationFork_UnmarshalBinary(t *testing.T) {
type args struct {
b []byte
}
tests := []struct {
name string
args args
wantErr assert.ErrorAssertionFunc
}{
{
name: "when zero length comment size is omitted (Nostalgia client behavior)",
args: args{
b: []byte{
0x41, 0x4d, 0x41, 0x43, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x09, 0x62, 0x65, 0x61, 0x72, 0x2e, 0x74, 0x69, 0x66, 0x66,
},
},
wantErr: assert.NoError,
},
{
name: "when zero length comment size is included",
args: args{
b: []byte{
0x41, 0x4d, 0x41, 0x43, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x3f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x09, 0x62, 0x65, 0x61, 0x72, 0x2e, 0x74, 0x69, 0x66, 0x66, 0x00, 0x00,
},
},
wantErr: assert.NoError,
},
{
name: "when the buffer is shorter than the fixed header returns an error instead of panicking",
args: args{b: make([]byte, 10)},
wantErr: assert.Error,
},
{
name: "when the declared name size overruns the buffer returns an error",
args: args{b: func() []byte {
b := make([]byte, 72)
binary.BigEndian.PutUint16(b[70:72], 50) // claims a 50-byte name that isn't present
return b
}()},
wantErr: assert.Error,
},
{
name: "when the declared comment size overruns the buffer returns an error",
args: args{b: func() []byte {
b := make([]byte, 74) // 72 header + 2 comment-size bytes, no name
binary.BigEndian.PutUint16(b[72:74], 50) // claims a 50-byte comment that isn't present
return b
}()},
wantErr: assert.Error,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
ffif := &FlatFileInformationFork{}
tt.wantErr(t, ffif.UnmarshalBinary(tt.args.b), fmt.Sprintf("Write(%v)", tt.args.b))
})
}
}
func TestFlatFileInformationFork_FriendlyType(t *testing.T) {
tests := []struct {
name string
typeSignature [4]byte
want []byte
}{
{
name: "known type TEXT",
typeSignature: [4]byte{'T', 'E', 'X', 'T'},
want: []byte("Text File"),
},
{
name: "known type APPL",
typeSignature: [4]byte{'A', 'P', 'P', 'L'},
want: []byte("Application Program"),
},
{
name: "known type SIT!",
typeSignature: [4]byte{'S', 'I', 'T', '!'},
want: []byte("StuffIt Archive"),
},
{
name: "unknown type returns raw signature",
typeSignature: [4]byte{'J', 'P', 'E', 'G'},
want: []byte("JPEG"),
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
ffif := &FlatFileInformationFork{
TypeSignature: tt.typeSignature,
}
assert.Equal(t, tt.want, ffif.FriendlyType())
})
}
}
func TestFlatFileInformationFork_FriendlyCreator(t *testing.T) {
tests := []struct {
name string
creatorSignature [4]byte
want []byte
}{
{
name: "known creator HTLC",
creatorSignature: [4]byte{'H', 'T', 'L', 'C'},
want: []byte("Hotline"),
},
{
name: "unknown creator returns raw signature",
creatorSignature: [4]byte{'o', 'g', 'l', 'e'},
want: []byte("ogle"),
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
ffif := &FlatFileInformationFork{
CreatorSignature: tt.creatorSignature,
}
assert.Equal(t, tt.want, ffif.FriendlyCreator())
})
}
}
func TestFlatFileInformationFork_SetComment(t *testing.T) {
tests := []struct {
name string
comment []byte
wantComment []byte
wantCommentSize [2]byte
}{
{
name: "sets a short comment",
comment: []byte("hello"),
wantComment: []byte("hello"),
wantCommentSize: [2]byte{0x00, 0x05},
},
{
name: "sets an empty comment",
comment: []byte{},
wantComment: []byte{},
wantCommentSize: [2]byte{0x00, 0x00},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
ffif := &FlatFileInformationFork{}
err := ffif.SetComment(tt.comment)
assert.NoError(t, err)
assert.Equal(t, tt.wantComment, ffif.Comment)
assert.Equal(t, tt.wantCommentSize, ffif.CommentSize)
})
}
}
func TestFlattenedFileObject_TransferSize(t *testing.T) {
tests := []struct {
name string
dataSize uint32
resForkSize uint32
offset int64
wantNonZero bool
}{
{
name: "calculates transfer size with zero offset",
dataSize: 100,
resForkSize: 50,
offset: 0,
wantNonZero: true,
},
{
name: "calculates transfer size with non-zero offset",
dataSize: 200,
resForkSize: 100,
offset: 50,
wantNonZero: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
ffo := &flattenedFileObject{}
binary.BigEndian.PutUint32(ffo.FlatFileDataForkHeader.DataSize[:], tt.dataSize)
binary.BigEndian.PutUint32(ffo.FlatFileResForkHeader.DataSize[:], tt.resForkSize)
result := ffo.TransferSize(tt.offset)
assert.Len(t, result, 4)
size := binary.BigEndian.Uint32(result)
assert.Greater(t, size, uint32(0))
// With offset, the size should be smaller than without offset.
if tt.offset > 0 {
noOffsetResult := ffo.TransferSize(0)
noOffsetSize := binary.BigEndian.Uint32(noOffsetResult)
assert.Equal(t, noOffsetSize-uint32(tt.offset), size)
}
})
}
}
|
