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vendor/cloud.google.com/go/internal/testutil/context.go

@@ -0,0 +1,67 @@
+// Copyright 2014 Google Inc. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package testutil contains helper functions for writing tests.
+package testutil
+
+import (
+	"io/ioutil"
+	"log"
+	"os"
+
+	"golang.org/x/net/context"
+	"golang.org/x/oauth2"
+	"golang.org/x/oauth2/google"
+)
+
+const (
+	envProjID     = "GCLOUD_TESTS_GOLANG_PROJECT_ID"
+	envPrivateKey = "GCLOUD_TESTS_GOLANG_KEY"
+)
+
+// ProjID returns the project ID to use in integration tests, or the empty
+// string if none is configured.
+func ProjID() string {
+	projID := os.Getenv(envProjID)
+	if projID == "" {
+		return ""
+	}
+	return projID
+}
+
+// TokenSource returns the OAuth2 token source to use in integration tests,
+// or nil if none is configured. If the environment variable is unset,
+// TokenSource will try to find 'Application Default Credentials'. Else,
+// TokenSource will return nil.
+// TokenSource will log.Fatal if the token source is specified but missing or invalid.
+func TokenSource(ctx context.Context, scopes ...string) oauth2.TokenSource {
+	key := os.Getenv(envPrivateKey)
+	if key == "" { // Try for application default credentials.
+		ts, err := google.DefaultTokenSource(ctx, scopes...)
+		if err != nil {
+			log.Println("No 'Application Default Credentials' found.")
+			return nil
+		}
+		return ts
+	}
+	jsonKey, err := ioutil.ReadFile(key)
+	if err != nil {
+		log.Fatalf("Cannot read the JSON key file, err: %v", err)
+	}
+	conf, err := google.JWTConfigFromJSON(jsonKey, scopes...)
+	if err != nil {
+		log.Fatalf("google.JWTConfigFromJSON: %v", err)
+	}
+	return conf.TokenSource(ctx)
+}

vendor/cloud.google.com/go/internal/testutil/server.go

@@ -0,0 +1,73 @@
+/*
+Copyright 2016 Google Inc. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package testutil
+
+import (
+	"net"
+
+	grpc "google.golang.org/grpc"
+)
+
+// A Server is an in-process gRPC server, listening on a system-chosen port on
+// the local loopback interface. Servers are for testing only and are not
+// intended to be used in production code.
+//
+// To create a server, make a new Server, register your handlers, then call
+// Start:
+//
+//	srv, err := NewServer()
+//	...
+//	mypb.RegisterMyServiceServer(srv.Gsrv, &myHandler)
+//	....
+//	srv.Start()
+//
+// Clients should connect to the server with no security:
+//
+//	conn, err := grpc.Dial(srv.Addr, grpc.WithInsecure())
+//	...
+type Server struct {
+	Addr string
+	l    net.Listener
+	Gsrv *grpc.Server
+}
+
+// NewServer creates a new Server. The Server will be listening for gRPC connections
+// at the address named by the Addr field, without TLS.
+func NewServer() (*Server, error) {
+	l, err := net.Listen("tcp", "127.0.0.1:0")
+	if err != nil {
+		return nil, err
+	}
+	s := &Server{
+		Addr: l.Addr().String(),
+		l:    l,
+		Gsrv: grpc.NewServer(),
+	}
+	return s, nil
+}
+
+// Start causes the server to start accepting incoming connections.
+// Call Start after registering handlers.
+func (s *Server) Start() {
+	go s.Gsrv.Serve(s.l)
+}
+
+// Close shuts down the server.
+func (s *Server) Close() {
+	s.Gsrv.Stop()
+	s.l.Close()
+}

vendor/cloud.google.com/go/internal/testutil/server_test.go

@@ -0,0 +1,35 @@
+// Copyright 2016 Google Inc. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package testutil
+
+import (
+	"testing"
+
+	grpc "google.golang.org/grpc"
+)
+
+func TestNewServer(t *testing.T) {
+	srv, err := NewServer()
+	if err != nil {
+		t.Fatal(err)
+	}
+	srv.Start()
+	conn, err := grpc.Dial(srv.Addr, grpc.WithInsecure())
+	if err != nil {
+		t.Fatal(err)
+	}
+	conn.Close()
+	srv.Close()
+}