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|
package objectid_test
import (
"bytes"
"testing"
"codeberg.org/lindenii/furgit/objectid"
)
func TestParseAlgorithm(t *testing.T) {
t.Parallel()
algo, ok := objectid.ParseAlgorithm("sha1")
if !ok || algo != objectid.AlgorithmSHA1 {
t.Fatalf("ParseAlgorithm(sha1) = (%v,%v)", algo, ok)
}
algo, ok = objectid.ParseAlgorithm("sha256")
if !ok || algo != objectid.AlgorithmSHA256 {
t.Fatalf("ParseAlgorithm(sha256) = (%v,%v)", algo, ok)
}
if _, ok := objectid.ParseAlgorithm("md5"); ok {
t.Fatalf("ParseAlgorithm(md5) should fail")
}
}
func TestParseHexRoundtrip(t *testing.T) {
t.Parallel()
tests := []struct {
name string
algo objectid.Algorithm
hex string
}{
{
name: "sha1",
algo: objectid.AlgorithmSHA1,
hex: "0123456789abcdef0123456789abcdef01234567",
},
{
name: "sha256",
algo: objectid.AlgorithmSHA256,
hex: "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
id, err := objectid.ParseHex(tt.algo, tt.hex)
if err != nil {
t.Fatalf("ParseHex failed: %v", err)
}
if got := id.String(); got != tt.hex {
t.Fatalf("String() = %q, want %q", got, tt.hex)
}
if got := id.Size(); got != tt.algo.Size() {
t.Fatalf("Size() = %d, want %d", got, tt.algo.Size())
}
raw := id.Bytes()
if len(raw) != tt.algo.Size() {
t.Fatalf("Bytes len = %d, want %d", len(raw), tt.algo.Size())
}
id2, err := objectid.FromBytes(tt.algo, raw)
if err != nil {
t.Fatalf("FromBytes failed: %v", err)
}
if id2.String() != tt.hex {
t.Fatalf("FromBytes roundtrip = %q, want %q", id2.String(), tt.hex)
}
})
}
}
func TestParseHexErrors(t *testing.T) {
t.Parallel()
tests := []struct {
name string
algo objectid.Algorithm
hex string
}{
{"unknown algo", objectid.AlgorithmUnknown, "00"},
{"odd len", objectid.AlgorithmSHA1, "0"},
{"wrong len", objectid.AlgorithmSHA1, "0123"},
{"invalid hex", objectid.AlgorithmSHA1, "zz23456789abcdef0123456789abcdef01234567"},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
if _, err := objectid.ParseHex(tt.algo, tt.hex); err == nil {
t.Fatalf("expected ParseHex error")
}
})
}
}
func TestFromBytesErrors(t *testing.T) {
t.Parallel()
if _, err := objectid.FromBytes(objectid.AlgorithmUnknown, []byte{1, 2}); err == nil {
t.Fatalf("expected FromBytes unknown algo error")
}
if _, err := objectid.FromBytes(objectid.AlgorithmSHA1, []byte{1, 2}); err == nil {
t.Fatalf("expected FromBytes wrong size error")
}
}
func TestBytesReturnsCopy(t *testing.T) {
t.Parallel()
id, err := objectid.ParseHex(objectid.AlgorithmSHA1, "0123456789abcdef0123456789abcdef01234567")
if err != nil {
t.Fatalf("ParseHex failed: %v", err)
}
b1 := id.Bytes()
b2 := id.Bytes()
if !bytes.Equal(b1, b2) {
t.Fatalf("Bytes mismatch")
}
b1[0] ^= 0xff
if bytes.Equal(b1, b2) {
t.Fatalf("Bytes should return independent copies")
}
}
func TestRawBytesAliasesStorage(t *testing.T) {
t.Parallel()
id, err := objectid.ParseHex(objectid.AlgorithmSHA1, "0123456789abcdef0123456789abcdef01234567")
if err != nil {
t.Fatalf("ParseHex failed: %v", err)
}
b := id.RawBytes()
if len(b) != id.Size() {
t.Fatalf("RawBytes len = %d, want %d", len(b), id.Size())
}
if cap(b) != len(b) {
t.Fatalf("RawBytes cap = %d, want %d", cap(b), len(b))
}
orig := id.String()
b[0] ^= 0xff
if id.String() == orig {
t.Fatalf("RawBytes should alias object ID storage")
}
}
func TestAlgorithmSum(t *testing.T) {
t.Parallel()
id1 := objectid.AlgorithmSHA1.Sum([]byte("hello"))
if id1.Algorithm() != objectid.AlgorithmSHA1 || id1.Size() != objectid.AlgorithmSHA1.Size() {
t.Fatalf("sha1 sum produced invalid object id")
}
id2 := objectid.AlgorithmSHA256.Sum([]byte("hello"))
if id2.Algorithm() != objectid.AlgorithmSHA256 || id2.Size() != objectid.AlgorithmSHA256.Size() {
t.Fatalf("sha256 sum produced invalid object id")
}
if id1.String() == id2.String() {
t.Fatalf("sha1 and sha256 should differ")
}
}
|
