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|
package acceptencoding
import (
"bytes"
"compress/gzip"
"context"
"encoding/hex"
"io"
"io/ioutil"
"net/http"
"testing"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
func TestAddAcceptEncodingGzip(t *testing.T) {
cases := map[string]struct {
Enable bool
}{
"disabled": {
Enable: false,
},
"enabled": {
Enable: true,
},
}
for name, c := range cases {
t.Run(name, func(t *testing.T) {
stack := middleware.NewStack("test", smithyhttp.NewStackRequest)
stack.Deserialize.Add(&stubOpDeserializer{}, middleware.After)
AddAcceptEncodingGzip(stack, AddAcceptEncodingGzipOptions{
Enable: c.Enable,
})
id := "OperationDeserializer"
if m, ok := stack.Deserialize.Get(id); !ok || m == nil {
t.Fatalf("expect %s not to be removed", id)
}
if c.Enable {
id = (*EnableGzip)(nil).ID()
if m, ok := stack.Finalize.Get(id); !ok || m == nil {
t.Fatalf("expect %s to be present.", id)
}
id = (*DecompressGzip)(nil).ID()
if m, ok := stack.Deserialize.Get(id); !ok || m == nil {
t.Fatalf("expect %s to be present.", id)
}
return
}
id = (*EnableGzip)(nil).ID()
if m, ok := stack.Finalize.Get(id); ok || m != nil {
t.Fatalf("expect %s not to be present.", id)
}
id = (*DecompressGzip)(nil).ID()
if m, ok := stack.Deserialize.Get(id); ok || m != nil {
t.Fatalf("expect %s not to be present.", id)
}
})
}
}
func TestAcceptEncodingGzipMiddleware(t *testing.T) {
m := &EnableGzip{}
_, _, err := m.HandleFinalize(context.Background(),
middleware.FinalizeInput{
Request: smithyhttp.NewStackRequest(),
},
middleware.FinalizeHandlerFunc(
func(ctx context.Context, input middleware.FinalizeInput) (
output middleware.FinalizeOutput, metadata middleware.Metadata, err error,
) {
req, ok := input.Request.(*smithyhttp.Request)
if !ok || req == nil {
t.Fatalf("expect smithy request, got %T", input.Request)
}
actual := req.Header.Get(acceptEncodingHeaderKey)
if e, a := "gzip", actual; e != a {
t.Errorf("expect %v accept-encoding, got %v", e, a)
}
return output, metadata, err
}),
)
if err != nil {
t.Fatalf("expect no error, got %v", err)
}
}
func TestDecompressGzipMiddleware(t *testing.T) {
cases := map[string]struct {
Response *smithyhttp.Response
ExpectBody []byte
ExpectContentLength int64
}{
"not compressed": {
Response: &smithyhttp.Response{
Response: &http.Response{
StatusCode: 200,
Header: http.Header{},
ContentLength: 2,
Body: &wasClosedReadCloser{
Reader: bytes.NewBuffer([]byte(`{}`)),
},
},
},
ExpectBody: []byte(`{}`),
ExpectContentLength: 2,
},
"compressed": {
Response: &smithyhttp.Response{
Response: &http.Response{
StatusCode: 200,
Header: http.Header{
contentEncodingHeaderKey: []string{"gzip"},
},
ContentLength: 10,
Body: func() io.ReadCloser {
var buf bytes.Buffer
w := gzip.NewWriter(&buf)
w.Write([]byte(`{}`))
w.Close()
return &wasClosedReadCloser{Reader: &buf}
}(),
},
},
ExpectBody: []byte(`{}`),
ExpectContentLength: -1, // Length empty because was decompressed
},
}
for name, c := range cases {
t.Run(name, func(t *testing.T) {
m := &DecompressGzip{}
var origRespBody io.Reader
output, _, err := m.HandleDeserialize(context.Background(),
middleware.DeserializeInput{},
middleware.DeserializeHandlerFunc(
func(ctx context.Context, input middleware.DeserializeInput) (
output middleware.DeserializeOutput, metadata middleware.Metadata, err error,
) {
output.RawResponse = c.Response
origRespBody = c.Response.Body
return output, metadata, err
}),
)
if err != nil {
t.Fatalf("expect no error, got %v", err)
}
resp, ok := output.RawResponse.(*smithyhttp.Response)
if !ok || resp == nil {
t.Fatalf("expect smithy request, got %T", output.RawResponse)
}
if e, a := c.ExpectContentLength, resp.ContentLength; e != a {
t.Errorf("expect %v content-length, got %v", e, a)
}
actual, err := ioutil.ReadAll(resp.Body)
if e, a := c.ExpectBody, actual; !bytes.Equal(e, a) {
t.Errorf("expect body equal\nexpect:\n%s\nactual:\n%s",
hex.Dump(e), hex.Dump(a))
}
if err := resp.Body.Close(); err != nil {
t.Fatalf("expect no close error, got %v", err)
}
if c, ok := origRespBody.(interface{ WasClosed() bool }); ok {
if !c.WasClosed() {
t.Errorf("expect original reader closed, but was not")
}
}
})
}
}
type stubOpDeserializer struct{}
func (*stubOpDeserializer) ID() string { return "OperationDeserializer" }
func (*stubOpDeserializer) HandleDeserialize(
ctx context.Context, input middleware.DeserializeInput, next middleware.DeserializeHandler,
) (
output middleware.DeserializeOutput, metadata middleware.Metadata, err error,
) {
return next.HandleDeserialize(ctx, input)
}
type wasClosedReadCloser struct {
io.Reader
closed bool
}
func (c *wasClosedReadCloser) WasClosed() bool {
return c.closed
}
func (c *wasClosedReadCloser) Close() error {
c.closed = true
if v, ok := c.Reader.(io.Closer); ok {
return v.Close()
}
return nil
}
|
