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|
package main
import (
"fmt"
"os/exec"
"regexp"
"strings"
"testing"
"time"
)
// This used to work, it test a log of PageSize-1 (gh#4851)
func TestLogsContainerSmallerThanPage(t *testing.T) {
testLen := 32767
runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "sh", "-c", fmt.Sprintf("for i in $(seq 1 %d); do echo -n =; done; echo", testLen))
out, _, _, err := runCommandWithStdoutStderr(runCmd)
errorOut(err, t, fmt.Sprintf("run failed with errors: %v", err))
cleanedContainerID := stripTrailingCharacters(out)
exec.Command(dockerBinary, "wait", cleanedContainerID).Run()
logsCmd := exec.Command(dockerBinary, "logs", cleanedContainerID)
out, _, _, err = runCommandWithStdoutStderr(logsCmd)
errorOut(err, t, fmt.Sprintf("failed to log container: %v %v", out, err))
if len(out) != testLen+1 {
t.Fatalf("Expected log length of %d, received %d\n", testLen+1, len(out))
}
deleteContainer(cleanedContainerID)
logDone("logs - logs container running echo smaller than page size")
}
// Regression test: When going over the PageSize, it used to panic (gh#4851)
func TestLogsContainerBiggerThanPage(t *testing.T) {
testLen := 32768
runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "sh", "-c", fmt.Sprintf("for i in $(seq 1 %d); do echo -n =; done; echo", testLen))
out, _, _, err := runCommandWithStdoutStderr(runCmd)
errorOut(err, t, fmt.Sprintf("run failed with errors: %v", err))
cleanedContainerID := stripTrailingCharacters(out)
exec.Command(dockerBinary, "wait", cleanedContainerID).Run()
logsCmd := exec.Command(dockerBinary, "logs", cleanedContainerID)
out, _, _, err = runCommandWithStdoutStderr(logsCmd)
errorOut(err, t, fmt.Sprintf("failed to log container: %v %v", out, err))
if len(out) != testLen+1 {
t.Fatalf("Expected log length of %d, received %d\n", testLen+1, len(out))
}
deleteContainer(cleanedContainerID)
logDone("logs - logs container running echo bigger than page size")
}
// Regression test: When going much over the PageSize, it used to block (gh#4851)
func TestLogsContainerMuchBiggerThanPage(t *testing.T) {
testLen := 33000
runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "sh", "-c", fmt.Sprintf("for i in $(seq 1 %d); do echo -n =; done; echo", testLen))
out, _, _, err := runCommandWithStdoutStderr(runCmd)
errorOut(err, t, fmt.Sprintf("run failed with errors: %v", err))
cleanedContainerID := stripTrailingCharacters(out)
exec.Command(dockerBinary, "wait", cleanedContainerID).Run()
logsCmd := exec.Command(dockerBinary, "logs", cleanedContainerID)
out, _, _, err = runCommandWithStdoutStderr(logsCmd)
errorOut(err, t, fmt.Sprintf("failed to log container: %v %v", out, err))
if len(out) != testLen+1 {
t.Fatalf("Expected log length of %d, received %d\n", testLen+1, len(out))
}
deleteContainer(cleanedContainerID)
logDone("logs - logs container running echo much bigger than page size")
}
func TestLogsTimestamps(t *testing.T) {
testLen := 100
runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "sh", "-c", fmt.Sprintf("for i in $(seq 1 %d); do echo =; done;", testLen))
out, _, _, err := runCommandWithStdoutStderr(runCmd)
errorOut(err, t, fmt.Sprintf("run failed with errors: %v", err))
cleanedContainerID := stripTrailingCharacters(out)
exec.Command(dockerBinary, "wait", cleanedContainerID).Run()
logsCmd := exec.Command(dockerBinary, "logs", "-t", cleanedContainerID)
out, _, _, err = runCommandWithStdoutStderr(logsCmd)
errorOut(err, t, fmt.Sprintf("failed to log container: %v %v", out, err))
lines := strings.Split(out, "\n")
if len(lines) != testLen+1 {
t.Fatalf("Expected log %d lines, received %d\n", testLen+1, len(lines))
}
ts := regexp.MustCompile(`^\[.*?\]`)
for _, l := range lines {
if l != "" {
_, err := time.Parse("["+time.StampMilli+"]", ts.FindString(l))
if err != nil {
t.Fatalf("Failed to parse timestamp from %v: %v", l, err)
}
}
}
deleteContainer(cleanedContainerID)
logDone("logs - logs with timestamps")
}
func TestLogsSeparateStderr(t *testing.T) {
msg := "stderr_log"
runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "sh", "-c", fmt.Sprintf("echo %s 1>&2", msg))
out, _, _, err := runCommandWithStdoutStderr(runCmd)
errorOut(err, t, fmt.Sprintf("run failed with errors: %v", err))
cleanedContainerID := stripTrailingCharacters(out)
exec.Command(dockerBinary, "wait", cleanedContainerID).Run()
logsCmd := exec.Command(dockerBinary, "logs", cleanedContainerID)
stdout, stderr, _, err := runCommandWithStdoutStderr(logsCmd)
errorOut(err, t, fmt.Sprintf("failed to log container: %v %v", out, err))
if stdout != "" {
t.Fatalf("Expected empty stdout stream, got %v", stdout)
}
stderr = strings.TrimSpace(stderr)
if stderr != msg {
t.Fatalf("Expected %v in stderr stream, got %v", msg, stderr)
}
deleteContainer(cleanedContainerID)
logDone("logs - separate stderr (without pseudo-tty)")
}
func TestLogsStderrInStdout(t *testing.T) {
msg := "stderr_log"
runCmd := exec.Command(dockerBinary, "run", "-d", "-t", "busybox", "sh", "-c", fmt.Sprintf("echo %s 1>&2", msg))
out, _, _, err := runCommandWithStdoutStderr(runCmd)
errorOut(err, t, fmt.Sprintf("run failed with errors: %v", err))
cleanedContainerID := stripTrailingCharacters(out)
exec.Command(dockerBinary, "wait", cleanedContainerID).Run()
logsCmd := exec.Command(dockerBinary, "logs", cleanedContainerID)
stdout, stderr, _, err := runCommandWithStdoutStderr(logsCmd)
errorOut(err, t, fmt.Sprintf("failed to log container: %v %v", out, err))
if stderr != "" {
t.Fatalf("Expected empty stderr stream, got %v", stdout)
}
stdout = strings.TrimSpace(stdout)
if stdout != msg {
t.Fatalf("Expected %v in stdout stream, got %v", msg, stdout)
}
deleteContainer(cleanedContainerID)
logDone("logs - stderr in stdout (with pseudo-tty)")
}
|
