Working on SFTP

1 files changed, 114 insertions, 0 deletions

diff --git a/internal/encoding/ssh/filexfer/init_packets_test.go b/internal/encoding/ssh/filexfer/init_packets_test.go
new file mode 100644
index 0000000..e7605f9
--- /dev/null
+++ b/internal/encoding/ssh/filexfer/init_packets_test.go
@@ -0,0 +1,114 @@
+package filexfer
+
+import (
+	"bytes"
+	"testing"
+)
+
+func TestInitPacket(t *testing.T) {
+	var version uint8 = 3
+
+	p := &InitPacket{
+		Version: uint32(version),
+		Extensions: []*ExtensionPair{
+			{
+				Name: "foo",
+				Data: "1",
+			},
+		},
+	}
+
+	buf, err := p.MarshalBinary()
+	if err != nil {
+		t.Fatal("unexpected error:", err)
+	}
+
+	want := []byte{
+		0x00, 0x00, 0x00, 17,
+		1,
+		0x00, 0x00, 0x00, version,
+		0x00, 0x00, 0x00, 3, 'f', 'o', 'o',
+		0x00, 0x00, 0x00, 1, '1',
+	}
+
+	if !bytes.Equal(buf, want) {
+		t.Fatalf("MarshalBinary() = %X, but wanted %X", buf, want)
+	}
+
+	*p = InitPacket{}
+
+	// UnmarshalBinary assumes the uint32(length) + uint8(type) have already been consumed.
+	if err := p.UnmarshalBinary(buf[5:]); err != nil {
+		t.Fatal("unexpected error:", err)
+	}
+
+	if p.Version != uint32(version) {
+		t.Errorf("UnmarshalBinary(): Version was %d, but expected %d", p.Version, version)
+	}
+
+	if len(p.Extensions) != 1 {
+		t.Fatalf("UnmarshalBinary(): len(p.Extensions) was %d, but expected %d", len(p.Extensions), 1)
+	}
+
+	if got, want := p.Extensions[0].Name, "foo"; got != want {
+		t.Errorf("UnmarshalBinary(): p.Extensions[0].Name was %q, but expected %q", got, want)
+	}
+
+	if got, want := p.Extensions[0].Data, "1"; got != want {
+		t.Errorf("UnmarshalBinary(): p.Extensions[0].Data was %q, but expected %q", got, want)
+	}
+}
+
+func TestVersionPacket(t *testing.T) {
+	var version uint8 = 3
+
+	p := &VersionPacket{
+		Version: uint32(version),
+		Extensions: []*ExtensionPair{
+			{
+				Name: "foo",
+				Data: "1",
+			},
+		},
+	}
+
+	buf, err := p.MarshalBinary()
+	if err != nil {
+		t.Fatal("unexpected error:", err)
+	}
+
+	want := []byte{
+		0x00, 0x00, 0x00, 17,
+		2,
+		0x00, 0x00, 0x00, version,
+		0x00, 0x00, 0x00, 3, 'f', 'o', 'o',
+		0x00, 0x00, 0x00, 1, '1',
+	}
+
+	if !bytes.Equal(buf, want) {
+		t.Fatalf("MarshalBinary() = %X, but wanted %X", buf, want)
+	}
+
+	*p = VersionPacket{}
+
+	// UnmarshalBinary assumes the uint32(length) + uint8(type) have already been consumed.
+	if err := p.UnmarshalBinary(buf[5:]); err != nil {
+		t.Fatal("unexpected error:", err)
+	}
+
+	if p.Version != uint32(version) {
+		t.Errorf("UnmarshalBinary(): Version was %d, but expected %d", p.Version, version)
+	}
+
+	if len(p.Extensions) != 1 {
+		t.Fatalf("UnmarshalBinary(): len(p.Extensions) was %d, but expected %d", len(p.Extensions), 1)
+	}
+
+	if got, want := p.Extensions[0].Name, "foo"; got != want {
+		t.Errorf("UnmarshalBinary(): p.Extensions[0].Name was %q, but expected %q", got, want)
+	}
+
+	if got, want := p.Extensions[0].Data, "1"; got != want {
+		t.Errorf("UnmarshalBinary(): p.Extensions[0].Data was %q, but expected %q", got, want)
+	}
+}