内容压缩支持对已压缩内容重新压缩

internal/compressions/writer_encoding_test.go

@@ -0,0 +1,47 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package compressions
+
+import (
+	"bytes"
+	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs"
+	"testing"
+)
+
+func TestNewEncodingWriter(t *testing.T) {
+	var buf = &bytes.Buffer{}
+
+	subWriter, err := NewWriter(buf, serverconfigs.HTTPCompressionTypeGzip, 5)
+	if err != nil {
+		t.Fatal(err)
+	}
+	writer, err := NewEncodingWriter(ContentEncodingGzip, subWriter)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	gzipBuf := &bytes.Buffer{}
+	gzipWriter, err := NewGzipWriter(gzipBuf, 5)
+	if err != nil {
+		t.Fatal(err)
+	}
+	_, err = gzipWriter.Write([]byte("Hello"))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	_, err = gzipWriter.Write([]byte("World"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	_ = gzipWriter.Close()
+
+	_, err = writer.Write(gzipBuf.Bytes())
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	_ = writer.Close()
+
+	t.Log(buf.String())
+}