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setup.go
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setup.go
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// Copyright (c) 2017 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 integration
import (
"errors"
"flag"
"testing"
aggclient "github.com/m3db/m3/src/aggregator/client"
aggserver "github.com/m3db/m3/src/collector/integration/server"
"github.com/m3db/m3/src/collector/reporter"
aggreporter "github.com/m3db/m3/src/collector/reporter/m3aggregator"
"github.com/m3db/m3/src/metrics/matcher"
"github.com/m3db/m3/src/metrics/matcher/cache"
"github.com/m3db/m3/src/x/server"
"github.com/stretchr/testify/require"
)
var (
serverAddrArg = flag.String("serverAddr", "localhost:6789", "server address")
errServerStartTimedOut = errors.New("server took too long to start")
errServerStopTimedOut = errors.New("server took too long to stop")
)
type testSetup struct {
opts testOptions
client aggclient.Client
reporter reporter.Reporter
serverAddr string
server server.Server
}
func newTestSetup(t *testing.T, opts testOptions) *testSetup {
if opts == nil {
opts = newTestOptions()
}
// Create reporter.
cache := cache.NewCache(opts.CacheOptions())
matcher, err := matcher.NewMatcher(cache, opts.MatcherOptions())
require.NoError(t, err)
client := aggclient.NewClient(opts.AggregatorClientOptions())
reporter := aggreporter.NewReporter(matcher, client, opts.AggregatorReporterOptions())
// Create server.
serverAddr := *serverAddrArg
if addr := opts.ServerAddr(); addr != "" {
serverAddr = addr
}
server := aggserver.NewServer(serverAddr, opts.ServerOptions())
return &testSetup{
opts: opts,
client: client,
reporter: reporter,
serverAddr: serverAddr,
server: server,
}
}
func (ts *testSetup) Reporter() reporter.Reporter { return ts.reporter }
func (ts *testSetup) newClient() *client {
aggClientOpts := ts.opts.AggregatorClientOptions()
connectTimeout := aggClientOpts.ConnectionOptions().ConnectionTimeout()
return newClient(ts.serverAddr, connectTimeout)
}
func (ts *testSetup) waitUntilServerIsUp() error {
c := ts.newClient()
defer c.close()
serverIsUp := func() bool { return c.testConnection() }
if waitUntil(serverIsUp, ts.opts.ServerStateChangeTimeout()) {
return nil
}
return errServerStartTimedOut
}
func (ts *testSetup) waitUntilServerIsDown() error {
c := ts.newClient()
defer c.close()
serverIsDown := func() bool { return !c.testConnection() }
if waitUntil(serverIsDown, ts.opts.ServerStateChangeTimeout()) {
return nil
}
return errServerStopTimedOut
}
func (ts *testSetup) startServer() error {
if err := ts.server.ListenAndServe(); err != nil {
return err
}
if err := ts.waitUntilServerIsUp(); err != nil {
return err
}
return ts.client.Init()
}
func (ts *testSetup) stopServer() error {
ts.server.Close()
return ts.waitUntilServerIsDown()
}
func (ts *testSetup) close() {
ts.reporter.Close()
ts.server.Close()
}