127 строки
4.0 KiB
Go
127 строки
4.0 KiB
Go
/*
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*
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* Copyright 2017 gRPC authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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package grpc
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import (
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"context"
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"errors"
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"fmt"
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"net"
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"strings"
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"testing"
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"time"
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"google.golang.org/grpc/balancer"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/internal/balancer/stub"
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"google.golang.org/grpc/resolver"
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"google.golang.org/grpc/resolver/manual"
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"google.golang.org/grpc/serviceconfig"
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"google.golang.org/grpc/status"
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)
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// The target string with unknown scheme should be kept unchanged and passed to
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// the dialer.
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func (s) TestDialParseTargetUnknownScheme(t *testing.T) {
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for _, test := range []struct {
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targetStr string
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want string
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}{
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{"/unix/socket/address", "/unix/socket/address"},
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// For known scheme.
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{"passthrough://a.server.com/google.com", "google.com"},
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} {
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dialStrCh := make(chan string, 1)
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cc, err := Dial(test.targetStr, WithInsecure(), WithDialer(func(addr string, _ time.Duration) (net.Conn, error) {
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select {
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case dialStrCh <- addr:
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default:
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}
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return nil, fmt.Errorf("test dialer, always error")
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}))
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if err != nil {
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t.Fatalf("Failed to create ClientConn: %v", err)
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}
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got := <-dialStrCh
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cc.Close()
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if got != test.want {
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t.Errorf("Dial(%q), dialer got %q, want %q", test.targetStr, got, test.want)
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}
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}
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}
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const happyBalancerName = "happy balancer"
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func init() {
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// Register a balancer that never returns an error from
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// UpdateClientConnState, and doesn't do anything else either.
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bf := stub.BalancerFuncs{
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UpdateClientConnState: func(*stub.BalancerData, balancer.ClientConnState) error {
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return nil
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},
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}
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stub.Register(happyBalancerName, bf)
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}
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// TestResolverErrorInBuild makes the resolver.Builder call into the ClientConn
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// during the Build call. We use two separate mutexes in the code which make
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// sure there is no data race in this code path, and also that there is no
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// deadlock.
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func (s) TestResolverErrorInBuild(t *testing.T) {
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r := manual.NewBuilderWithScheme("whatever")
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r.InitialState(resolver.State{ServiceConfig: &serviceconfig.ParseResult{Err: errors.New("resolver build err")}})
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cc, err := Dial(r.Scheme()+":///test.server", WithInsecure(), WithResolvers(r))
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if err != nil {
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t.Fatalf("Dial(_, _) = _, %v; want _, nil", err)
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}
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defer cc.Close()
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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var dummy int
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const wantMsg = "error parsing service config"
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const wantCode = codes.Unavailable
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if err := cc.Invoke(ctx, "/foo/bar", &dummy, &dummy); status.Code(err) != wantCode || !strings.Contains(status.Convert(err).Message(), wantMsg) {
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t.Fatalf("cc.Invoke(_, _, _, _) = %v; want status.Code()==%v, status.Message() contains %q", err, wantCode, wantMsg)
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}
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}
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func (s) TestServiceConfigErrorRPC(t *testing.T) {
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r := manual.NewBuilderWithScheme("whatever")
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cc, err := Dial(r.Scheme()+":///test.server", WithInsecure(), WithResolvers(r))
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if err != nil {
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t.Fatalf("Dial(_, _) = _, %v; want _, nil", err)
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}
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defer cc.Close()
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badsc := r.CC.ParseServiceConfig("bad config")
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r.UpdateState(resolver.State{ServiceConfig: badsc})
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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var dummy int
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const wantMsg = "error parsing service config"
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const wantCode = codes.Unavailable
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if err := cc.Invoke(ctx, "/foo/bar", &dummy, &dummy); status.Code(err) != wantCode || !strings.Contains(status.Convert(err).Message(), wantMsg) {
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t.Fatalf("cc.Invoke(_, _, _, _) = %v; want status.Code()==%v, status.Message() contains %q", err, wantCode, wantMsg)
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}
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}
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