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moby--moby/integration-cli/docker_cli_export_import_test.go

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package main
import (
"os/exec"
"strings"
"testing"
)
// export an image and try to import it into a new one
func TestExportContainerAndImportImage(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "true")
out, _, err := runCommandWithOutput(runCmd)
if err != nil {
t.Fatal("failed to create a container", out, err)
}
cleanedContainerID := stripTrailingCharacters(out)
inspectCmd := exec.Command(dockerBinary, "inspect", cleanedContainerID)
out, _, err = runCommandWithOutput(inspectCmd)
if err != nil {
t.Fatalf("output should've been a container id: %s %s ", cleanedContainerID, err)
}
exportCmd := exec.Command(dockerBinary, "export", cleanedContainerID)
if out, _, err = runCommandWithOutput(exportCmd); err != nil {
t.Fatalf("failed to export container: %s, %v", out, err)
}
importCmd := exec.Command(dockerBinary, "import", "-", "repo/testexp:v1")
importCmd.Stdin = strings.NewReader(out)
out, _, err = runCommandWithOutput(importCmd)
if err != nil {
t.Fatalf("failed to import image: %s, %v", out, err)
}
cleanedImageID := stripTrailingCharacters(out)
inspectCmd = exec.Command(dockerBinary, "inspect", cleanedImageID)
if out, _, err = runCommandWithOutput(inspectCmd); err != nil {
t.Fatalf("output should've been an image id: %s, %v", out, err)
}
deleteContainer(cleanedContainerID)
deleteImages("repo/testexp:v1")
logDone("export - export a container")
logDone("import - import an image")
}