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package pktline_test
import (
"bufio"
"bytes"
"strings"
"testing"
"codeberg.org/lindenii/furgit/protocol/pktline"
)
func TestChunkWriterWriteAndReadFrom(t *testing.T) {
t.Parallel()
var out bytes.Buffer
bw := bufio.NewWriter(&out)
enc := pktline.NewEncoder(bw)
enc.SetMaxData(3)
cw := pktline.NewChunkWriter(enc)
n, err := cw.Write([]byte("abcdefg"))
if err != nil {
t.Fatalf("Write: %v", err)
}
if n != 7 {
t.Fatalf("Write n=%d, want 7", n)
}
err = enc.FlushIO()
if err != nil {
t.Fatalf("FlushIO: %v", err)
}
if got, want := out.String(), "0007abc0007def0005g"; got != want {
t.Fatalf("got %q, want %q", got, want)
}
out.Reset()
rn, err := cw.ReadFrom(strings.NewReader("wxyz"))
if err != nil {
t.Fatalf("ReadFrom: %v", err)
}
if rn != 4 {
t.Fatalf("ReadFrom n=%d, want 4", rn)
}
err = enc.FlushIO()
if err != nil {
t.Fatalf("FlushIO: %v", err)
}
if got, want := out.String(), "0007wxy0005z"; got != want {
t.Fatalf("got %q, want %q", got, want)
}
}
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