forked from johanbrandhorst/protobuf
/
ping_client.go
222 lines (195 loc) · 5.37 KB
/
ping_client.go
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package shared
import (
"context"
"strings"
"github.com/pkg/errors"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/metadata"
)
type TestPingClientStreamClient interface {
Send(*Request) error
CloseAndRecv() (*Response, error)
Trailer() metadata.MD
Header() (metadata.MD, error)
}
func testPingClientStream(client TestClient, req *Request) error {
headers, trailers := metadata.MD{}, metadata.MD{}
ctx := context.Background()
if req.CheckMetadata {
ctx = metadata.NewOutgoingContext(ctx, metadata.Pairs(ClientMDTestKey, ClientMDTestValue))
}
srv, err := client.PingClientStream(ctx, &headers, &trailers)
if err != nil {
return unexpectedError("PingClientStream", err)
}
iterations := 10
req.Value = "test"
req.ResponseCount = 1
for i := 0; i < iterations; i++ {
err := srv.Send(req)
if err != nil {
return unexpectedError("Send", err)
}
}
resp, err := srv.CloseAndRecv()
if err != nil {
return unexpectedError("CloseAndRecv", err)
}
if resp.Value != "Closed" {
return reportError("response value", resp.Value, "Closed")
}
if resp.Counter != 0 {
return reportError("response counter", resp.Counter, 0)
}
// Headers used as callOptions should not be populated
if len(headers) > 0 {
return reportError("header", headers, nil)
}
// Trailers used as callOptions should not be populated
if len(trailers) > 0 {
return reportError("trailer", trailers, nil)
}
h, err := srv.Header()
if err != nil {
return unexpectedError("header", err)
}
if req.SendHeaders {
for header, value := range map[string]string{
ServerMDTestKey1: ServerMDTestValue1,
ServerMDTestKey2: ServerMDTestValue2,
} {
if values, ok := h[strings.ToLower(header)]; !ok {
return reportError("header", h, header)
} else if len(values) != 1 || values[0] != value {
return reportError("header value", values, value)
}
}
} else {
for _, header := range []string{ServerMDTestKey1, ServerMDTestKey2} {
_, ok := h[header]
if ok {
return reportError("unexpected header", h[ServerMDTestKey1], "")
}
}
}
t := srv.Trailer()
if req.SendTrailers {
for trailer, value := range map[string]string{
ServerTrailerTestKey1: ServerMDTestValue1,
ServerTrailerTestKey2: ServerMDTestValue2,
} {
if values, ok := t[strings.ToLower(trailer)]; !ok {
return reportError("trailer", h, trailer)
} else if len(values) != iterations || values[0] != value {
return reportError("trailer value", values, value)
}
}
} else {
for _, trailer := range []string{ServerMDTestKey1, ServerMDTestKey2} {
_, ok := h[trailer]
if ok {
return reportError("unexpected trailer", t[ServerMDTestKey1], "")
}
}
}
return nil
}
type TestPingClientStreamErrorClient interface {
Send(*Request) error
CloseAndRecv() (*Response, error)
}
func testPingClientStreamError(client TestClient, req *Request, getStatus func(error) (codes.Code, string)) error {
srv, err := client.PingClientStreamError(context.Background())
if err != nil {
return unexpectedError("PingClientStream", err)
}
if req.FailureType == CODE {
// Send OK first
err = srv.Send(&Request{
Value: req.Value,
ResponseCount: req.ResponseCount,
})
if err != nil {
return unexpectedError("Send", err)
}
// Trigger error
err = srv.Send(req)
if err != nil {
return unexpectedError("Send", err)
}
// Shouldn't error
err = srv.Send(&Request{
Value: req.Value,
ResponseCount: req.ResponseCount,
})
if err != nil {
return unexpectedError("Send", err)
}
}
_, err = srv.CloseAndRecv()
if err == nil {
return errors.Errorf("Got nil error, expected non-nil")
}
code, message := getStatus(err)
if code != codes.Code(req.ErrorCodeReturned) {
return reportError("code", code, codes.Code(req.ErrorCodeReturned))
}
if message != req.Value {
return reportError("message", message, req.Value)
}
return nil
}
func TestPingClientStream(client TestClient, getStatus func(error) (codes.Code, string)) error {
err := testPingClientStream(client, &Request{
Value: "test",
ResponseCount: 1,
SendHeaders: true,
SendTrailers: true,
})
if err != nil {
return errors.WithMessage(err, "send headers and trailers")
}
err = testPingClientStream(client, &Request{
Value: "test",
ResponseCount: 1,
SendHeaders: true,
})
if err != nil {
return errors.WithMessage(err, "send headers only")
}
err = testPingClientStream(client, &Request{
Value: "test",
ResponseCount: 1,
SendTrailers: true,
})
if err != nil {
return errors.WithMessage(err, "send trailer only")
}
err = testPingClientStream(client, &Request{
Value: "test",
ResponseCount: 1,
})
if err != nil {
return errors.WithMessage(err, "send nethier header or trailer")
}
req := &Request{
Value: "error",
ResponseCount: 1,
ErrorCodeReturned: uint32(codes.Internal),
}
err = testPingClientStreamError(client, req, getStatus)
if err != nil {
return errors.WithMessage(err, "error after close")
}
req.FailureType = CODE
req.ErrorCodeReturned = uint32(codes.DataLoss)
req.Value = "test"
err = testPingClientStreamError(client, req, getStatus)
if err != nil {
return errors.WithMessage(err, "trigger return code")
}
req.FailureType = DROP
req.ErrorCodeReturned = uint32(codes.Internal)
req.Value = "error"
return errors.WithMessage(testPingClientStreamError(client, req, getStatus), "trigger network error")
}