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raw.go
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raw.go
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// Copyright (c) 2016 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package tchserver
import (
"context"
"strings"
"time"
"go.uber.org/yarpc"
"go.uber.org/yarpc/api/transport"
"go.uber.org/yarpc/encoding/raw"
"go.uber.org/yarpc/internal/crossdock/client/random"
"go.uber.org/yarpc/internal/crossdock/internal"
"github.com/crossdock/crossdock-go"
)
func runRaw(t crossdock.T, dispatcher *yarpc.Dispatcher) {
hello(t, dispatcher)
remoteTimeout(t, dispatcher)
}
func hello(t crossdock.T, dispatcher *yarpc.Dispatcher) {
assert := crossdock.Assert(t)
checks := crossdock.Checks(t)
// TODO headers should be at yarpc, not transport
headers := map[string]string{"hello": "raw"}
token := random.Bytes(5)
resBody, resHeaders, err := rawCall(dispatcher, headers, "echo/raw", token)
if skipOnConnRefused(t, err) {
return
}
if checks.NoError(err, "raw: call failed") {
assert.Equal(token, resBody, "body echoed")
internal.RemoveVariableMapKeys(resHeaders)
assert.Equal(headers, resHeaders, "headers echoed")
}
}
// remoteTimeout tests if a yarpc client returns a remote timeout error behind
// the TimeoutError interface when a remote tchannel handler returns a handler
// timeout.
func remoteTimeout(t crossdock.T, dispatcher *yarpc.Dispatcher) {
assert := crossdock.Assert(t)
token := random.Bytes(5)
_, _, err := rawCall(dispatcher, nil, "handlertimeout/raw", token)
if skipOnConnRefused(t, err) {
return
}
if !assert.Error(err, "expected an error") {
return
}
if transport.IsBadRequestError(err) {
t.Skipf("handlertimeout/raw procedure not implemented: %v", err)
return
}
assert.True(transport.IsTimeoutError(err), "returns a TimeoutError: %T", err)
form := strings.HasPrefix(err.Error(),
`Timeout: call to procedure "handlertimeout/raw" of service "service" from caller "caller" timed out after`)
assert.True(form, "must be a remote handler timeout: %q", err.Error())
}
func rawCall(
dispatcher *yarpc.Dispatcher,
headers map[string]string,
procedure string,
token []byte,
) ([]byte, map[string]string, error) {
client := raw.New(dispatcher.ClientConfig(serverName))
ctx, cancel := context.WithTimeout(context.Background(), time.Second)
defer cancel()
var (
opts []yarpc.CallOption
resHeaders map[string]string
)
for k, v := range headers {
opts = append(opts, yarpc.WithHeader(k, v))
}
opts = append(opts, yarpc.ResponseHeaders(&resHeaders))
res, err := client.Call(ctx, procedure, token, opts...)
return res, resHeaders, err
}