341 lines
11 KiB
Go
341 lines
11 KiB
Go
/*
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*
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* Copyright 2014, Google Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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package grpc
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import (
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"net"
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"testing"
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"time"
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"golang.org/x/net/context"
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"google.golang.org/grpc/credentials"
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"google.golang.org/grpc/keepalive"
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)
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const tlsDir = "testdata/"
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func TestDialTimeout(t *testing.T) {
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conn, err := Dial("Non-Existent.Server:80", WithTimeout(time.Millisecond), WithBlock(), WithInsecure())
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if err == nil {
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conn.Close()
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}
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if err != context.DeadlineExceeded {
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t.Fatalf("Dial(_, _) = %v, %v, want %v", conn, err, context.DeadlineExceeded)
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}
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}
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func TestTLSDialTimeout(t *testing.T) {
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creds, err := credentials.NewClientTLSFromFile(tlsDir+"ca.pem", "x.test.youtube.com")
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if err != nil {
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t.Fatalf("Failed to create credentials %v", err)
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}
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conn, err := Dial("Non-Existent.Server:80", WithTransportCredentials(creds), WithTimeout(time.Millisecond), WithBlock())
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if err == nil {
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conn.Close()
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}
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if err != context.DeadlineExceeded {
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t.Fatalf("Dial(_, _) = %v, %v, want %v", conn, err, context.DeadlineExceeded)
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}
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}
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func TestDefaultAuthority(t *testing.T) {
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target := "Non-Existent.Server:8080"
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conn, err := Dial(target, WithInsecure())
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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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conn.Close()
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if conn.authority != target {
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t.Fatalf("%v.authority = %v, want %v", conn, conn.authority, target)
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}
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}
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func TestTLSServerNameOverwrite(t *testing.T) {
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overwriteServerName := "over.write.server.name"
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creds, err := credentials.NewClientTLSFromFile(tlsDir+"ca.pem", overwriteServerName)
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if err != nil {
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t.Fatalf("Failed to create credentials %v", err)
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}
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conn, err := Dial("Non-Existent.Server:80", WithTransportCredentials(creds))
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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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conn.Close()
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if conn.authority != overwriteServerName {
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t.Fatalf("%v.authority = %v, want %v", conn, conn.authority, overwriteServerName)
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}
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}
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func TestWithAuthority(t *testing.T) {
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overwriteServerName := "over.write.server.name"
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conn, err := Dial("Non-Existent.Server:80", WithInsecure(), WithAuthority(overwriteServerName))
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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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conn.Close()
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if conn.authority != overwriteServerName {
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t.Fatalf("%v.authority = %v, want %v", conn, conn.authority, overwriteServerName)
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}
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}
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func TestWithAuthorityAndTLS(t *testing.T) {
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overwriteServerName := "over.write.server.name"
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creds, err := credentials.NewClientTLSFromFile(tlsDir+"ca.pem", overwriteServerName)
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if err != nil {
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t.Fatalf("Failed to create credentials %v", err)
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}
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conn, err := Dial("Non-Existent.Server:80", WithTransportCredentials(creds), WithAuthority("no.effect.authority"))
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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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conn.Close()
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if conn.authority != overwriteServerName {
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t.Fatalf("%v.authority = %v, want %v", conn, conn.authority, overwriteServerName)
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}
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}
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func TestDialContextCancel(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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cancel()
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if _, err := DialContext(ctx, "Non-Existent.Server:80", WithBlock(), WithInsecure()); err != context.Canceled {
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t.Fatalf("DialContext(%v, _) = _, %v, want _, %v", ctx, err, context.Canceled)
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}
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}
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// blockingBalancer mimics the behavior of balancers whose initialization takes a long time.
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// In this test, reading from blockingBalancer.Notify() blocks forever.
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type blockingBalancer struct {
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ch chan []Address
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}
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func newBlockingBalancer() Balancer {
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return &blockingBalancer{ch: make(chan []Address)}
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}
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func (b *blockingBalancer) Start(target string, config BalancerConfig) error {
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return nil
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}
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func (b *blockingBalancer) Up(addr Address) func(error) {
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return nil
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}
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func (b *blockingBalancer) Get(ctx context.Context, opts BalancerGetOptions) (addr Address, put func(), err error) {
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return Address{}, nil, nil
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}
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func (b *blockingBalancer) Notify() <-chan []Address {
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return b.ch
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}
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func (b *blockingBalancer) Close() error {
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close(b.ch)
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return nil
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}
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func TestDialWithBlockingBalancer(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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dialDone := make(chan struct{})
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go func() {
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DialContext(ctx, "Non-Existent.Server:80", WithBlock(), WithInsecure(), WithBalancer(newBlockingBalancer()))
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close(dialDone)
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}()
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cancel()
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<-dialDone
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}
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// securePerRPCCredentials always requires transport security.
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type securePerRPCCredentials struct{}
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func (c securePerRPCCredentials) GetRequestMetadata(ctx context.Context, uri ...string) (map[string]string, error) {
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return nil, nil
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}
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func (c securePerRPCCredentials) RequireTransportSecurity() bool {
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return true
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}
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func TestCredentialsMisuse(t *testing.T) {
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tlsCreds, err := credentials.NewClientTLSFromFile(tlsDir+"ca.pem", "x.test.youtube.com")
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if err != nil {
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t.Fatalf("Failed to create authenticator %v", err)
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}
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// Two conflicting credential configurations
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if _, err := Dial("Non-Existent.Server:80", WithTransportCredentials(tlsCreds), WithBlock(), WithInsecure()); err != errCredentialsConflict {
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t.Fatalf("Dial(_, _) = _, %v, want _, %v", err, errCredentialsConflict)
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}
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// security info on insecure connection
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if _, err := Dial("Non-Existent.Server:80", WithPerRPCCredentials(securePerRPCCredentials{}), WithBlock(), WithInsecure()); err != errTransportCredentialsMissing {
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t.Fatalf("Dial(_, _) = _, %v, want _, %v", err, errTransportCredentialsMissing)
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}
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}
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func TestWithBackoffConfigDefault(t *testing.T) {
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testBackoffConfigSet(t, &DefaultBackoffConfig)
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}
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func TestWithBackoffConfig(t *testing.T) {
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b := BackoffConfig{MaxDelay: DefaultBackoffConfig.MaxDelay / 2}
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expected := b
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setDefaults(&expected) // defaults should be set
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testBackoffConfigSet(t, &expected, WithBackoffConfig(b))
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}
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func TestWithBackoffMaxDelay(t *testing.T) {
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md := DefaultBackoffConfig.MaxDelay / 2
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expected := BackoffConfig{MaxDelay: md}
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setDefaults(&expected)
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testBackoffConfigSet(t, &expected, WithBackoffMaxDelay(md))
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}
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func testBackoffConfigSet(t *testing.T, expected *BackoffConfig, opts ...DialOption) {
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opts = append(opts, WithInsecure())
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conn, err := Dial("foo:80", opts...)
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if err != nil {
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t.Fatalf("unexpected error dialing connection: %v", err)
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}
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if conn.dopts.bs == nil {
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t.Fatalf("backoff config not set")
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}
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actual, ok := conn.dopts.bs.(BackoffConfig)
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if !ok {
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t.Fatalf("unexpected type of backoff config: %#v", conn.dopts.bs)
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}
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if actual != *expected {
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t.Fatalf("unexpected backoff config on connection: %v, want %v", actual, expected)
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}
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conn.Close()
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}
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type testErr struct {
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temp bool
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}
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func (e *testErr) Error() string {
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return "test error"
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}
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func (e *testErr) Temporary() bool {
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return e.temp
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}
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var nonTemporaryError = &testErr{false}
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func nonTemporaryErrorDialer(addr string, timeout time.Duration) (net.Conn, error) {
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return nil, nonTemporaryError
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}
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func TestDialWithBlockErrorOnNonTemporaryErrorDialer(t *testing.T) {
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ctx, _ := context.WithTimeout(context.Background(), 100*time.Millisecond)
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if _, err := DialContext(ctx, "", WithInsecure(), WithDialer(nonTemporaryErrorDialer), WithBlock(), FailOnNonTempDialError(true)); err != nonTemporaryError {
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t.Fatalf("Dial(%q) = %v, want %v", "", err, nonTemporaryError)
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}
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// Without FailOnNonTempDialError, gRPC will retry to connect, and dial should exit with time out error.
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if _, err := DialContext(ctx, "", WithInsecure(), WithDialer(nonTemporaryErrorDialer), WithBlock()); err != context.DeadlineExceeded {
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t.Fatalf("Dial(%q) = %v, want %v", "", err, context.DeadlineExceeded)
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}
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}
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// emptyBalancer returns an empty set of servers.
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type emptyBalancer struct {
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ch chan []Address
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}
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func newEmptyBalancer() Balancer {
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return &emptyBalancer{ch: make(chan []Address, 1)}
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}
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func (b *emptyBalancer) Start(_ string, _ BalancerConfig) error {
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b.ch <- nil
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return nil
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}
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func (b *emptyBalancer) Up(_ Address) func(error) {
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return nil
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}
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func (b *emptyBalancer) Get(_ context.Context, _ BalancerGetOptions) (Address, func(), error) {
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return Address{}, nil, nil
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}
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func (b *emptyBalancer) Notify() <-chan []Address {
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return b.ch
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}
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func (b *emptyBalancer) Close() error {
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close(b.ch)
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return nil
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}
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func TestNonblockingDialWithEmptyBalancer(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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dialDone := make(chan error)
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go func() {
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dialDone <- func() error {
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conn, err := DialContext(ctx, "Non-Existent.Server:80", WithInsecure(), WithBalancer(newEmptyBalancer()))
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if err != nil {
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return err
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}
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return conn.Close()
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}()
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}()
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if err := <-dialDone; err != nil {
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t.Fatalf("unexpected error dialing connection: %s", err)
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}
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}
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func TestClientUpdatesParamsAfterGoAway(t *testing.T) {
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lis, err := net.Listen("tcp", "localhost:0")
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if err != nil {
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t.Fatalf("Failed to listen. Err: %v", err)
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}
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defer lis.Close()
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addr := lis.Addr().String()
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s := NewServer()
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go s.Serve(lis)
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defer s.Stop()
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cc, err := Dial(addr, WithBlock(), WithInsecure(), WithKeepaliveParams(keepalive.ClientParameters{
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Time: 50 * time.Millisecond,
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Timeout: 1 * time.Millisecond,
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PermitWithoutStream: true,
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}))
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if err != nil {
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t.Fatalf("Dial(%s, _) = _, %v, want _, <nil>", addr, err)
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}
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defer cc.Close()
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time.Sleep(1 * time.Second)
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cc.mu.RLock()
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defer cc.mu.RUnlock()
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v := cc.mkp.Time
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if v < 100*time.Millisecond {
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t.Fatalf("cc.dopts.copts.Keepalive.Time = %v , want 100ms", v)
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}
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}
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