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package main
import (
"context"
"fmt"
"os"
"testing"
"github.com/edwarnicke/exechelper"
)
func testProxyHttpTcp(t *testing.T, dockerInstance string, proxySetup func() error) error {
const outputFile = "test.data"
const srcFile = "10M"
stopServer := make(chan struct{}, 1)
serverRunning := make(chan struct{}, 1)
volumeArgs := fmt.Sprintf("-v shared-vol:/tmp/%s", dockerInstance)
err := dockerRun(dockerInstance, volumeArgs)
if err != nil {
return fmt.Errorf("failed to start container: %v", err)
}
defer func() { exechelper.Run("docker stop " + dockerInstance) }()
// start & configure vpp in the container
_, err = hstExec(dockerInstance, dockerInstance)
if err != nil {
return fmt.Errorf("error starting vpp in container: %v", err)
}
fmt.Println("VPP running and configured...")
if err := proxySetup(); err != nil {
return fmt.Errorf("failed to setup proxy: %v", err)
}
fmt.Println("Proxy configured...")
// create test file
err = exechelper.Run(fmt.Sprintf("ip netns exec server truncate -s %s %s", srcFile, srcFile))
if err != nil {
return fmt.Errorf("failed to run truncate command")
}
defer func() { os.Remove(srcFile) }()
fmt.Println("Test file created...")
go startHttpServer(serverRunning, stopServer, ":666", "server")
// TODO better error handling and recovery
<-serverRunning
defer func(chan struct{}) {
stopServer <- struct{}{}
}(stopServer)
fmt.Println("http server started...")
c := fmt.Sprintf("ip netns exec client wget --retry-connrefused --retry-on-http-error=503 --tries=10 -O %s 10.0.0.2:555/%s", outputFile, srcFile)
_, err = exechelper.CombinedOutput(c)
if err != nil {
return fmt.Errorf("failed to run wget: %v", err)
}
stopServer <- struct{}{}
defer func() { os.Remove(outputFile) }()
if err = assertFileSize(outputFile, srcFile); err != nil {
return err
}
return nil
}
func (s *NsSuite) TestVppProxyHttpTcp() {
t := s.T()
dockerInstance := "vpp-proxy"
err := testProxyHttpTcp(t, dockerInstance, configureVppProxy)
if err != nil {
t.Errorf("%v", err)
}
}
func (s *NsSuite) TestEnvoyProxyHttpTcp() {
t := s.T()
exechelper.Run("docker volume create --name=shared-vol")
defer func() {
exechelper.Run("docker stop envoy")
}()
ctx, cancel := context.WithCancel(context.Background())
dockerInstance := "vpp-envoy"
err := testProxyHttpTcp(t, dockerInstance, func() error {
return setupEnvoy(t, ctx, dockerInstance)
})
if err != nil {
t.Errorf("%v", err)
}
cancel()
}
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