mirror of
https://github.com/gogrlx/nats-server.git
synced 2026-04-02 03:38:42 -07:00
f8a030bc4a
Refactor tests to use go built-in temporary directory utility for tests. Also avoid binding to default port (which may be in use)
520 lines
14 KiB
Go
520 lines
14 KiB
Go
// Copyright 2020 The NATS Authors
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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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package test
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import (
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"fmt"
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"strconv"
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"strings"
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"testing"
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"time"
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"github.com/nats-io/nats-server/v2/server"
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"github.com/nats-io/nats.go"
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)
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func TestAccountCycleService(t *testing.T) {
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conf := createConfFile(t, []byte(`
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accounts {
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A {
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exports [ { service: help } ]
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imports [ { service { subject: help, account: B } } ]
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}
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B {
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exports [ { service: help } ]
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imports [ { service { subject: help, account: A } } ]
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}
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}
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`))
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if _, err := server.ProcessConfigFile(conf); err == nil || !strings.Contains(err.Error(), server.ErrImportFormsCycle.Error()) {
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t.Fatalf("Expected an error on cycle service import, got none")
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}
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conf = createConfFile(t, []byte(`
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accounts {
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A {
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exports [ { service: * } ]
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imports [ { service { subject: help, account: B } } ]
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}
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B {
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exports [ { service: help } ]
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imports [ { service { subject: *, account: A } } ]
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}
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}
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`))
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if _, err := server.ProcessConfigFile(conf); err == nil || !strings.Contains(err.Error(), server.ErrImportFormsCycle.Error()) {
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t.Fatalf("Expected an error on cycle service import, got none")
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}
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conf = createConfFile(t, []byte(`
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accounts {
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A {
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exports [ { service: * } ]
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imports [ { service { subject: help, account: B } } ]
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}
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B {
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exports [ { service: help } ]
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imports [ { service { subject: help, account: C } } ]
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}
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C {
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exports [ { service: * } ]
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imports [ { service { subject: *, account: A } } ]
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}
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}
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`))
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if _, err := server.ProcessConfigFile(conf); err == nil || !strings.Contains(err.Error(), server.ErrImportFormsCycle.Error()) {
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t.Fatalf("Expected an error on cycle service import, got none")
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}
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}
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func TestAccountCycleStream(t *testing.T) {
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conf := createConfFile(t, []byte(`
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accounts {
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A {
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exports [ { stream: strm } ]
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imports [ { stream { subject: strm, account: B } } ]
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}
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B {
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exports [ { stream: strm } ]
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imports [ { stream { subject: strm, account: A } } ]
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}
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}
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`))
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if _, err := server.ProcessConfigFile(conf); err == nil || !strings.Contains(err.Error(), server.ErrImportFormsCycle.Error()) {
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t.Fatalf("Expected an error on cyclic import, got none")
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}
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}
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func TestAccountCycleStreamWithMapping(t *testing.T) {
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conf := createConfFile(t, []byte(`
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accounts {
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A {
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exports [ { stream: * } ]
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imports [ { stream { subject: bar, account: B } } ]
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}
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B {
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exports [ { stream: bar } ]
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imports [ { stream { subject: foo, account: A }, to: bar } ]
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}
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}
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`))
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if _, err := server.ProcessConfigFile(conf); err == nil || !strings.Contains(err.Error(), server.ErrImportFormsCycle.Error()) {
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t.Fatalf("Expected an error on cyclic import, got none")
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}
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}
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func TestAccountCycleNonCycleStreamWithMapping(t *testing.T) {
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conf := createConfFile(t, []byte(`
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accounts {
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A {
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exports [ { stream: foo } ]
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imports [ { stream { subject: bar, account: B } } ]
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}
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B {
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exports [ { stream: bar } ]
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imports [ { stream { subject: baz, account: C }, to: bar } ]
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}
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C {
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exports [ { stream: baz } ]
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imports [ { stream { subject: foo, account: A }, to: bar } ]
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}
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}
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`))
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if _, err := server.ProcessConfigFile(conf); err != nil {
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t.Fatalf("Expected no error but got %s", err)
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}
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}
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func TestAccountCycleServiceCycleWithMapping(t *testing.T) {
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conf := createConfFile(t, []byte(`
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accounts {
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A {
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exports [ { service: a } ]
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imports [ { service { subject: b, account: B }, to: a } ]
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}
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B {
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exports [ { service: b } ]
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imports [ { service { subject: a, account: A }, to: b } ]
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}
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}
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`))
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if _, err := server.ProcessConfigFile(conf); err == nil || !strings.Contains(err.Error(), server.ErrImportFormsCycle.Error()) {
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t.Fatalf("Expected an error on cycle service import, got none")
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}
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}
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func TestAccountCycleServiceNonCycle(t *testing.T) {
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conf := createConfFile(t, []byte(`
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accounts {
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A {
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exports [ { service: * } ]
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imports [ { service { subject: help, account: B } } ]
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}
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B {
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exports [ { service: help } ]
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imports [ { service { subject: nohelp, account: C } } ]
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}
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C {
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exports [ { service: * } ]
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imports [ { service { subject: *, account: A } } ]
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}
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}
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`))
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if _, err := server.ProcessConfigFile(conf); err != nil {
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t.Fatalf("Expected no error but got %s", err)
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}
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}
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func TestAccountCycleServiceNonCycleChain(t *testing.T) {
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conf := createConfFile(t, []byte(`
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accounts {
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A {
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exports [ { service: help } ]
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imports [ { service { subject: help, account: B } } ]
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}
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B {
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exports [ { service: help } ]
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imports [ { service { subject: help, account: C } } ]
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}
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C {
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exports [ { service: help } ]
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imports [ { service { subject: help, account: D } } ]
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}
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D {
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exports [ { service: help } ]
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}
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}
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`))
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if _, err := server.ProcessConfigFile(conf); err != nil {
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t.Fatalf("Expected no error but got %s", err)
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}
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}
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// bug: https://github.com/nats-io/nats-server/issues/1769
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func TestServiceImportReplyMatchCycle(t *testing.T) {
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conf := createConfFile(t, []byte(`
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port: -1
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accounts {
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A {
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users: [{user: d, pass: x}]
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imports [ {service: {account: B, subject: ">" }}]
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}
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B {
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users: [{user: x, pass: x}]
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exports [ { service: ">" } ]
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}
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}
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no_auth_user: d
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`))
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s, opts := RunServerWithConfig(conf)
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defer s.Shutdown()
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nc1 := clientConnectToServerWithUP(t, opts, "x", "x")
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defer nc1.Close()
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msg := []byte("HELLO")
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nc1.Subscribe("foo", func(m *nats.Msg) {
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m.Respond(msg)
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})
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nc2 := clientConnectToServer(t, s)
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defer nc2.Close()
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resp, err := nc2.Request("foo", nil, time.Second)
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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if resp == nil || string(resp.Data) != string(msg) {
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t.Fatalf("Wrong or empty response")
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}
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}
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func TestServiceImportReplyMatchCycleMultiHops(t *testing.T) {
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conf := createConfFile(t, []byte(`
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port: -1
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accounts {
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A {
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users: [{user: d, pass: x}]
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imports [ {service: {account: B, subject: ">" }}]
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}
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B {
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exports [ { service: ">" } ]
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imports [ {service: {account: C, subject: ">" }}]
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}
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C {
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users: [{user: x, pass: x}]
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exports [ { service: ">" } ]
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}
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}
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no_auth_user: d
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`))
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s, opts := RunServerWithConfig(conf)
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defer s.Shutdown()
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nc1 := clientConnectToServerWithUP(t, opts, "x", "x")
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defer nc1.Close()
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msg := []byte("HELLO")
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nc1.Subscribe("foo", func(m *nats.Msg) {
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m.Respond(msg)
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})
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nc2 := clientConnectToServer(t, s)
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defer nc2.Close()
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resp, err := nc2.Request("foo", nil, time.Second)
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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if resp == nil || string(resp.Data) != string(msg) {
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t.Fatalf("Wrong or empty response")
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}
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}
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// Go's stack are infinite sans memory, but not call depth. However its good to limit.
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func TestAccountCycleDepthLimit(t *testing.T) {
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var last *server.Account
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chainLen := server.MaxAccountCycleSearchDepth + 1
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// Services
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for i := 1; i <= chainLen; i++ {
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acc := server.NewAccount(fmt.Sprintf("ACC-%d", i))
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if err := acc.AddServiceExport("*", nil); err != nil {
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t.Fatalf("Error adding service export to '*': %v", err)
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}
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if last != nil {
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err := acc.AddServiceImport(last, "foo", "foo")
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switch i {
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case chainLen:
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if err != server.ErrCycleSearchDepth {
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t.Fatalf("Expected last import to fail with '%v', but got '%v'", server.ErrCycleSearchDepth, err)
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}
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default:
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if err != nil {
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t.Fatalf("Error adding service import to 'foo': %v", err)
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}
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}
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}
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last = acc
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}
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last = nil
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// Streams
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for i := 1; i <= chainLen; i++ {
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acc := server.NewAccount(fmt.Sprintf("ACC-%d", i))
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if err := acc.AddStreamExport("foo", nil); err != nil {
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t.Fatalf("Error adding stream export to '*': %v", err)
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}
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if last != nil {
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err := acc.AddStreamImport(last, "foo", "")
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switch i {
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case chainLen:
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if err != server.ErrCycleSearchDepth {
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t.Fatalf("Expected last import to fail with '%v', but got '%v'", server.ErrCycleSearchDepth, err)
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}
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default:
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if err != nil {
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t.Fatalf("Error adding stream import to 'foo': %v", err)
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}
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}
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}
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last = acc
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}
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}
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// Test token and partition subject mapping within an account
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func TestAccountSubjectMapping(t *testing.T) {
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conf := createConfFile(t, []byte(`
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port: -1
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mappings = {
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"foo.*.*" : "foo.$1.{{wildcard(2)}}.{{partition(10,1,2)}}"
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}
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`))
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s, _ := RunServerWithConfig(conf)
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defer s.Shutdown()
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nc1 := clientConnectToServer(t, s)
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defer nc1.Close()
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numMessages := 100
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subjectsReceived := make(chan string)
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msg := []byte("HELLO")
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sub1, err := nc1.Subscribe("foo.*.*.*", func(m *nats.Msg) {
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subjectsReceived <- m.Subject
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})
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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sub1.AutoUnsubscribe(numMessages * 2)
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nc2 := clientConnectToServer(t, s)
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defer nc2.Close()
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// publish numMessages with an increasing id (should map to partition numbers with the range of 10 partitions) - twice
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for j := 0; j < 2; j++ {
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for i := 0; i < numMessages; i++ {
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err = nc2.Publish(fmt.Sprintf("foo.%d.%d", i, numMessages-i), msg)
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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}
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}
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// verify all the partition numbers are in the expected range
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partitionsReceived := make([]int, numMessages)
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for i := 0; i < numMessages; i++ {
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subject := <-subjectsReceived
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sTokens := strings.Split(subject, ".")
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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t1, _ := strconv.Atoi(sTokens[1])
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t2, _ := strconv.Atoi(sTokens[2])
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partitionsReceived[i], err = strconv.Atoi(sTokens[3])
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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if partitionsReceived[i] > 9 || partitionsReceived[i] < 0 || t1 != i || t2 != numMessages-i {
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t.Fatalf("Error received unexpected %d.%d to partition %d", t1, t2, partitionsReceived[i])
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}
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}
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// verify hashing is deterministic by checking it produces the same exact result twice
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for i := 0; i < numMessages; i++ {
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subject := <-subjectsReceived
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partitionNumber, err := strconv.Atoi(strings.Split(subject, ".")[3])
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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if partitionsReceived[i] != partitionNumber {
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t.Fatalf("Error: same id mapped to two different partitions")
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}
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}
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}
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// test token and partition subject mapping within an account
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// Alice imports from Bob with subject mapping
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func TestAccountImportSubjectMapping(t *testing.T) {
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conf := createConfFile(t, []byte(`
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port: -1
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accounts {
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A {
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users: [{user: a, pass: x}]
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imports [ {stream: {account: B, subject: "foo.*.*"}, to : "foo.$1.{{wildcard(2)}}.{{partition(10,1,2)}}"}]
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}
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B {
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users: [{user: b, pass x}]
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exports [ { stream: ">" } ]
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}
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}
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`))
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s, opts := RunServerWithConfig(conf)
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defer s.Shutdown()
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ncA := clientConnectToServerWithUP(t, opts, "a", "x")
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defer ncA.Close()
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numMessages := 100
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subjectsReceived := make(chan string)
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msg := []byte("HELLO")
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sub1, err := ncA.Subscribe("foo.*.*.*", func(m *nats.Msg) {
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subjectsReceived <- m.Subject
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})
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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sub1.AutoUnsubscribe(numMessages * 2)
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ncB := clientConnectToServerWithUP(t, opts, "b", "x")
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defer ncB.Close()
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// publish numMessages with an increasing id (should map to partition numbers with the range of 10 partitions) - twice
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for j := 0; j < 2; j++ {
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for i := 0; i < numMessages; i++ {
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err = ncB.Publish(fmt.Sprintf("foo.%d.%d", i, numMessages-i), msg)
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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}
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}
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// verify all the partition numbers are in the expected range
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partitionsReceived := make([]int, numMessages)
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for i := 0; i < numMessages; i++ {
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subject := <-subjectsReceived
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sTokens := strings.Split(subject, ".")
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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t1, _ := strconv.Atoi(sTokens[1])
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t2, _ := strconv.Atoi(sTokens[2])
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partitionsReceived[i], err = strconv.Atoi(sTokens[3])
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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if partitionsReceived[i] > 9 || partitionsReceived[i] < 0 || t1 != i || t2 != numMessages-i {
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t.Fatalf("Error received unexpected %d.%d to partition %d", t1, t2, partitionsReceived[i])
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}
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}
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// verify hashing is deterministic by checking it produces the same exact result twice
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for i := 0; i < numMessages; i++ {
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subject := <-subjectsReceived
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partitionNumber, err := strconv.Atoi(strings.Split(subject, ".")[3])
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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if partitionsReceived[i] != partitionNumber {
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t.Fatalf("Error: same id mapped to two different partitions")
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}
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}
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}
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func clientConnectToServer(t *testing.T, s *server.Server) *nats.Conn {
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t.Helper()
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nc, err := nats.Connect(s.ClientURL(),
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nats.Name("JS-TEST"),
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nats.ReconnectWait(5*time.Millisecond),
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nats.MaxReconnects(-1))
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if err != nil {
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t.Fatalf("Failed to create client: %v", err)
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}
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return nc
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}
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func clientConnectToServerWithUP(t *testing.T, opts *server.Options, user, pass string) *nats.Conn {
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curl := fmt.Sprintf("nats://%s:%s@%s:%d", user, pass, opts.Host, opts.Port)
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nc, err := nats.Connect(curl, nats.Name("JS-UP-TEST"), nats.ReconnectWait(5*time.Millisecond), nats.MaxReconnects(-1))
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if err != nil {
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t.Fatalf("Failed to create client: %v", err)
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}
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return nc
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}
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