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|
package integrationtests
import (
"context"
"fmt"
"os"
"strings"
"testing"
"time"
"github.com/mimecast/dtail/internal/config"
)
func TestDTailWithServer(t *testing.T) {
if !config.Env("DTAIL_INTEGRATION_TEST_RUN_MODE") {
t.Log("Skipping")
return
}
followFile := "dtail.follow.tmp"
port := getUniquePortNumber()
bindAddress := "localhost"
greetings := []string{"World!", "Sol-System!", "Milky-Way!", "Universe!", "Multiverse!"}
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
go func() {
select {
case <-time.After(time.Minute):
t.Error("Max time for this test exceeded!")
cancel()
case <-ctx.Done():
return
}
}()
serverCh, _, _, err := startCommand(ctx, t,
"", "../dserver",
"--cfg", "none",
"--logger", "stdout",
"--logLevel", "info",
"--bindAddress", bindAddress,
"--port", fmt.Sprintf("%d", port),
)
if err != nil {
t.Error(err)
return
}
// MAYBETODO: In testmode, never read a config file (use none for all commands)
clientCh, _, _, err := startCommand(ctx, t,
"", "../dtail",
"--cfg", "none",
"--logger", "stdout",
"--logLevel", "info",
"--servers", fmt.Sprintf("%s:%d", bindAddress, port),
"--files", followFile,
"--grep", "Hello",
"--trustAllHosts",
"--noColor",
)
if err != nil {
t.Error(err)
return
}
// Write greetings to followFile
fd, err := os.Create(followFile)
if err != nil {
t.Error(err)
}
defer fd.Close()
go func() {
var circular int
for {
select {
case <-time.After(time.Second):
fd.WriteString(time.Now().String())
fd.WriteString(fmt.Sprintf(" - Hello %s\n", greetings[circular]))
circular = (circular + 1) % len(greetings)
case <-ctx.Done():
return
}
}
}()
var greetingsRecv []string
for len(greetingsRecv) < len(greetings) {
select {
case line := <-serverCh:
t.Log("server:", line)
case line := <-clientCh:
t.Log("client:", line)
if strings.Contains(line, "Hello ") {
s := strings.Split(line, " ")
greeting := s[len(s)-1]
greetingsRecv = append(greetingsRecv, greeting)
t.Log("Received greeting", greeting, len(greetingsRecv))
}
case <-ctx.Done():
t.Log("Done reading client and server pipes")
break
}
}
// We expect to have received the greetings in the same order they were sent.`
offset := -1
for i, g := range greetings {
if g == greetingsRecv[0] {
offset = i
break
}
}
if offset == -1 {
t.Error("Could not find first offset of greetings received")
return
}
for i, g := range greetingsRecv {
index := (i + offset) % len(greetings)
if greetings[index] != g {
t.Error(fmt.Sprintf("Expected '%s' but got '%s' at '%v' vs '%v'\n",
g, greetings[index], greetings, greetingsRecv))
return
}
}
os.Remove(followFile)
}
func TestDTailColorTable(t *testing.T) {
if !config.Env("DTAIL_INTEGRATION_TEST_RUN_MODE") {
t.Log("Skipping")
return
}
outFile := "dtailcolortable.stdout.tmp"
expectedOutFile := "dtailcolortable.expected"
_, err := runCommand(context.TODO(), t, outFile, "../dtail", "--colorTable")
if err != nil {
t.Error(err)
return
}
if err := compareFiles(t, outFile, expectedOutFile); err != nil {
t.Error(err)
return
}
os.Remove(outFile)
}
|
