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126 lines
3.3 KiB
Go
126 lines
3.3 KiB
Go
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// Copyright 2016 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package http2
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import (
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"fmt"
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"math"
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"reflect"
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"testing"
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)
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func makeWriteNonStreamRequest() FrameWriteRequest {
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return FrameWriteRequest{writeSettingsAck{}, nil, nil}
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}
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func makeWriteHeadersRequest(streamID uint32) FrameWriteRequest {
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st := &stream{id: streamID}
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return FrameWriteRequest{&writeResHeaders{streamID: streamID, httpResCode: 200}, st, nil}
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}
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func checkConsume(wr FrameWriteRequest, nbytes int32, want []FrameWriteRequest) error {
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consumed, rest, n := wr.Consume(nbytes)
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var wantConsumed, wantRest FrameWriteRequest
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switch len(want) {
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case 0:
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case 1:
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wantConsumed = want[0]
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case 2:
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wantConsumed = want[0]
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wantRest = want[1]
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}
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if !reflect.DeepEqual(consumed, wantConsumed) || !reflect.DeepEqual(rest, wantRest) || n != len(want) {
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return fmt.Errorf("got %v, %v, %v\nwant %v, %v, %v", consumed, rest, n, wantConsumed, wantRest, len(want))
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}
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return nil
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}
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func TestFrameWriteRequestNonData(t *testing.T) {
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wr := makeWriteNonStreamRequest()
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if got, want := wr.DataSize(), 0; got != want {
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t.Errorf("DataSize: got %v, want %v", got, want)
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}
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// Non-DATA frames are always consumed whole.
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if err := checkConsume(wr, 0, []FrameWriteRequest{wr}); err != nil {
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t.Errorf("Consume:\n%v", err)
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}
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}
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func TestFrameWriteRequestData(t *testing.T) {
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st := &stream{
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id: 1,
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sc: &serverConn{maxFrameSize: 16},
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}
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const size = 32
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wr := FrameWriteRequest{&writeData{st.id, make([]byte, size), true}, st, make(chan error)}
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if got, want := wr.DataSize(), size; got != want {
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t.Errorf("DataSize: got %v, want %v", got, want)
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}
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// No flow-control bytes available: cannot consume anything.
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if err := checkConsume(wr, math.MaxInt32, []FrameWriteRequest{}); err != nil {
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t.Errorf("Consume(limited by flow control):\n%v", err)
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}
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// Add enough flow-control bytes to consume the entire frame,
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// but we're now restricted by st.sc.maxFrameSize.
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st.flow.add(size)
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want := []FrameWriteRequest{
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{
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write: &writeData{st.id, make([]byte, st.sc.maxFrameSize), false},
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stream: st,
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done: nil,
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},
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{
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write: &writeData{st.id, make([]byte, size-st.sc.maxFrameSize), true},
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stream: st,
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done: wr.done,
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},
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}
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if err := checkConsume(wr, math.MaxInt32, want); err != nil {
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t.Errorf("Consume(limited by maxFrameSize):\n%v", err)
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}
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rest := want[1]
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// Consume 8 bytes from the remaining frame.
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want = []FrameWriteRequest{
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{
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write: &writeData{st.id, make([]byte, 8), false},
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stream: st,
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done: nil,
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},
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{
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write: &writeData{st.id, make([]byte, size-st.sc.maxFrameSize-8), true},
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stream: st,
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done: wr.done,
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},
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}
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if err := checkConsume(rest, 8, want); err != nil {
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t.Errorf("Consume(8):\n%v", err)
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}
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rest = want[1]
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// Consume all remaining bytes.
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want = []FrameWriteRequest{
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{
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write: &writeData{st.id, make([]byte, size-st.sc.maxFrameSize-8), true},
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stream: st,
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done: wr.done,
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},
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}
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if err := checkConsume(rest, math.MaxInt32, want); err != nil {
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t.Errorf("Consume(remainder):\n%v", err)
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}
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}
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func TestFrameWriteRequest_StreamID(t *testing.T) {
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const streamID = 123
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wr := FrameWriteRequest{write: streamError(streamID, ErrCodeNo)}
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if got := wr.StreamID(); got != streamID {
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t.Errorf("FrameWriteRequest(StreamError) = %v; want %v", got, streamID)
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}
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}
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