1 files changed, 102 insertions, 0 deletions
diff --git a/internal/encoding/ssh/filexfer/fx_test.go b/internal/encoding/ssh/filexfer/fx_test.go
new file mode 100644
index 0000000..3e8db1d
--- /dev/null
+++ b/internal/encoding/ssh/filexfer/fx_test.go
@@ -0,0 +1,102 @@
+package filexfer
+
+import (
+	"bufio"
+	"errors"
+	"regexp"
+	"strconv"
+	"strings"
+	"testing"
+)
+
+// This string data is copied verbatim from https://tools.ietf.org/html/draft-ietf-secsh-filexfer-13
+var fxStandardsText = `
+SSH_FX_OK                            0
+SSH_FX_EOF                           1
+SSH_FX_NO_SUCH_FILE                  2
+SSH_FX_PERMISSION_DENIED             3
+SSH_FX_FAILURE                       4
+SSH_FX_BAD_MESSAGE                   5
+SSH_FX_NO_CONNECTION                 6
+SSH_FX_CONNECTION_LOST               7
+SSH_FX_OP_UNSUPPORTED                8
+SSH_FX_INVALID_HANDLE                9
+SSH_FX_NO_SUCH_PATH                  10
+SSH_FX_FILE_ALREADY_EXISTS           11
+SSH_FX_WRITE_PROTECT                 12
+SSH_FX_NO_MEDIA                      13
+SSH_FX_NO_SPACE_ON_FILESYSTEM        14
+SSH_FX_QUOTA_EXCEEDED                15
+SSH_FX_UNKNOWN_PRINCIPAL             16
+SSH_FX_LOCK_CONFLICT                 17
+SSH_FX_DIR_NOT_EMPTY                 18
+SSH_FX_NOT_A_DIRECTORY               19
+SSH_FX_INVALID_FILENAME              20
+SSH_FX_LINK_LOOP                     21
+SSH_FX_CANNOT_DELETE                 22
+SSH_FX_INVALID_PARAMETER             23
+SSH_FX_FILE_IS_A_DIRECTORY           24
+SSH_FX_BYTE_RANGE_LOCK_CONFLICT      25
+SSH_FX_BYTE_RANGE_LOCK_REFUSED       26
+SSH_FX_DELETE_PENDING                27
+SSH_FX_FILE_CORRUPT                  28
+SSH_FX_OWNER_INVALID                 29
+SSH_FX_GROUP_INVALID                 30
+SSH_FX_NO_MATCHING_BYTE_RANGE_LOCK   31
+`
+
+func TestFxNames(t *testing.T) {
+	whitespace := regexp.MustCompile(`[[:space:]]+`)
+
+	scan := bufio.NewScanner(strings.NewReader(fxStandardsText))
+
+	for scan.Scan() {
+		line := scan.Text()
+		if i := strings.Index(line, "//"); i >= 0 {
+			line = line[:i]
+		}
+
+		line = strings.TrimSpace(line)
+		if line == "" {
+			continue
+		}
+
+		fields := whitespace.Split(line, 2)
+		if len(fields) < 2 {
+			t.Fatalf("unexpected standards text line: %q", line)
+		}
+
+		name, value := fields[0], fields[1]
+		n, err := strconv.Atoi(value)
+		if err != nil {
+			t.Fatal("unexpected error:", err)
+		}
+
+		fx := Status(n)
+
+		if got := fx.String(); got != name {
+			t.Errorf("fx name mismatch for %d: got %q, but want %q", n, got, name)
+		}
+	}
+
+	if err := scan.Err(); err != nil {
+		t.Fatal("unexpected error:", err)
+	}
+}
+
+func TestStatusIs(t *testing.T) {
+	status := StatusFailure
+
+	if !errors.Is(status, StatusFailure) {
+		t.Error("errors.Is(StatusFailure, StatusFailure) != true")
+	}
+	if !errors.Is(status, &StatusPacket{StatusCode: StatusFailure}) {
+		t.Error("errors.Is(StatusFailure, StatusPacket{StatusFailure}) != true")
+	}
+	if errors.Is(status, StatusOK) {
+		t.Error("errors.Is(StatusFailure, StatusFailure) == true")
+	}
+	if errors.Is(status, &StatusPacket{StatusCode: StatusOK}) {
+		t.Error("errors.Is(StatusFailure, StatusPacket{StatusFailure}) == true")
+	}
+}