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package integration_test
import (
"context"
"flag"
"fmt"
"net/http"
"os"
"testing"
"time"
"github.com/golang/glog"
"github.com/grpc-ecosystem/grpc-gateway/v2/examples/internal/gateway"
server "github.com/grpc-ecosystem/grpc-gateway/v2/examples/internal/server"
gwruntime "github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
)
var (
endpoint = flag.String("endpoint", "localhost:9090", "endpoint of the gRPC service")
network = flag.String("network", "tcp", `one of "tcp" or "unix". Must be consistent to -endpoint`)
openAPIDir = flag.String("openapi_dir", "examples/internal/proto/examplepb", "path to the directory which contains OpenAPI definitions")
)
func runGateway(ctx context.Context, addr string, opts ...gwruntime.ServeMuxOption) error {
return gateway.Run(ctx, gateway.Options{
Addr: addr,
GRPCServer: gateway.Endpoint{
Network: *network,
Addr: *endpoint,
},
OpenAPIDir: *openAPIDir,
Mux: opts,
})
}
func waitForGateway(ctx context.Context, port uint16) error {
ch := time.After(10 * time.Second)
for {
r, err := http.Get(fmt.Sprintf("http://localhost:%d/healthz", port))
if err == nil && r.StatusCode == http.StatusOK {
return nil
}
glog.Infof("Waiting for localhost:%d to get ready", port)
select {
case <-ctx.Done():
return err
case <-ch:
return err
case <-time.After(10 * time.Millisecond):
}
}
}
func runServers(ctx context.Context) <-chan error {
ch := make(chan error, 3)
go func() {
if err := server.Run(ctx, *network, *endpoint); err != nil {
ch <- fmt.Errorf("cannot run grpc service: %v", err)
}
}()
go func() {
if err := runGateway(ctx, ":8088"); err != nil {
ch <- fmt.Errorf("cannot run gateway service: %v", err)
}
}()
go func() {
if err := server.RunInProcessGateway(ctx, ":8089"); err != nil {
ch <- fmt.Errorf("cannot run in process gateway service: %v", err)
}
}()
return ch
}
func TestMain(m *testing.M) {
flag.Parse()
defer glog.Flush()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
errCh := runServers(ctx)
ch := make(chan int, 1)
go func() {
if err := waitForGateway(ctx, 8088); err != nil {
glog.Errorf("waitForGateway(ctx, 8088) failed with %v; want success", err)
}
ch <- m.Run()
}()
select {
case err := <-errCh:
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
case status := <-ch:
cancel()
os.Exit(status)
}
}
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