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mock_service.go
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mock_service.go
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// Code generated by zanzibar
// @generated
// Copyright (c) 2018 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package xyzservicegeneratedmock
import (
"context"
"errors"
"io"
"net/http"
"os"
"path/filepath"
"testing"
"time"
"github.com/golang/mock/gomock"
"github.com/uber/zanzibar/config"
zanzibar "github.com/uber/zanzibar/runtime"
service "github.com/uber/zanzibar/examples/example-gateway/build/app/demo/services/xyz"
)
// MockService interface
type MockService interface {
MakeHTTPRequest(
method string,
url string,
headers map[string]string,
body io.Reader,
) (*http.Response, error)
MakeTChannelRequest(
ctx context.Context,
thriftService string,
method string,
headers map[string]string,
req, resp zanzibar.RWTStruct,
) (bool, map[string]string, error)
MockClients() *MockClientNodes
Server() *zanzibar.Gateway
Start()
Stop()
}
type mockService struct {
started bool
server *zanzibar.Gateway
ctrl *gomock.Controller
mockClients *MockClientNodes
httpClient *http.Client
tChannelClient zanzibar.TChannelCaller
}
// MustCreateTestService creates a new MockService, panics if it fails doing so.
// Optional testConfigPaths specifies runtime config files used in tests, it
// should be paths that are relative to "$GOPATH/src".
// If testConfigPaths is absent, a default test config file is used.
// The default test config file is chosen base on existence in order below:
// - "../../config/test.yaml" where current dir is the dir of service-config.yaml for the mocked service
// - "config/test.yaml" where current dir is the project root
func MustCreateTestService(t *testing.T, testConfigPaths ...string) MockService {
if len(testConfigPaths) == 0 {
configPath := filepath.Join("src", "github.com/uber/zanzibar/examples/example-gateway/config/test.yaml")
defaultPath := filepath.Join(os.Getenv("GOPATH"), configPath)
// This is a temporary solution for running tests using bazel
// see https://docs.bazel.build/versions/master/test-encyclopedia.html for relevant env vars
// TODO: need long term solution to avoid hardcoding bazel specifics
bazelPath := filepath.Join(os.Getenv("TEST_SRCDIR"), os.Getenv("TEST_WORKSPACE"), configPath)
testConfigPaths = append(
testConfigPaths,
defaultPath,
bazelPath,
)
}
c := config.NewRuntimeConfigOrDie(testConfigPaths, nil)
server, err := zanzibar.CreateGateway(c, nil)
if err != nil {
panic(err)
}
ctrl := gomock.NewController(t)
_, dependencies, mockNodes := InitializeDependenciesMock(server, ctrl)
registerErr := service.RegisterDeps(server, dependencies)
if registerErr != nil {
panic(registerErr)
}
httpClient := &http.Client{
Transport: &http.Transport{
DisableKeepAlives: false,
MaxIdleConns: 500,
MaxIdleConnsPerHost: 500,
},
}
timeout := time.Duration(10000) * time.Millisecond
timeoutPerAttempt := time.Duration(2000) * time.Millisecond
tchannelClient := zanzibar.NewRawTChannelClient(
server.Channel,
server.Logger,
server.RootScope,
&zanzibar.TChannelClientOption{
ServiceName: server.ServiceName,
ClientID: "TestClient",
Timeout: timeout,
TimeoutPerAttempt: timeoutPerAttempt,
},
)
return &mockService{
server: server,
ctrl: ctrl,
mockClients: mockNodes,
httpClient: httpClient,
tChannelClient: tchannelClient,
}
}
// Server returns the mock server
func (m *mockService) Server() *zanzibar.Gateway {
return m.server
}
// Start starts the mock server, panics if fails doing so
func (m *mockService) Start() {
if err := m.server.Bootstrap(); err != nil {
panic(err)
}
m.started = true
}
// Stop stops the mock server
func (m *mockService) Stop() {
// m.ctrl.Finish() calls runtime.Goexit() on errors
// put it in defer so cleanup is always done
defer func() {
m.server.Shutdown()
m.started = false
}()
m.ctrl.Finish()
}
// MockClients returns the mock clients
func (m *mockService) MockClients() *MockClientNodes {
return m.mockClients
}
// MakeHTTPRequest makes a HTTP request to the mock server
func (m *mockService) MakeHTTPRequest(
method string,
url string,
headers map[string]string,
body io.Reader,
) (*http.Response, error) {
if !m.started {
return nil, errors.New("mock server is not started")
}
client := m.httpClient
fullURL := "http://" + m.server.RealHTTPAddr + url
req, err := http.NewRequest(method, fullURL, body)
for headerName, headerValue := range headers {
req.Header.Set(headerName, headerValue)
}
if err != nil {
return nil, err
}
return client.Do(req)
}
// MakeTChannelRequest makes a TChannel request to the mock server
func (m *mockService) MakeTChannelRequest(
ctx context.Context,
thriftService string,
method string,
headers map[string]string,
req, res zanzibar.RWTStruct,
) (bool, map[string]string, error) {
if !m.started {
return false, nil, errors.New("mock server is not started")
}
sc := m.server.Channel.GetSubChannel(m.server.ServiceName)
sc.Peers().Add(m.server.RealTChannelAddr)
return m.tChannelClient.Call(ctx, thriftService, method, headers, req, res)
}