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

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package main
import (
"os"
"strings"
"github.com/docker/docker/integration-cli/checker"
icmd "github.com/docker/docker/pkg/testutil/cmd"
"github.com/go-check/check"
)
// export an image and try to import it into a new one
func (s *DockerSuite) TestExportContainerAndImportImage(c *check.C) {
testRequires(c, DaemonIsLinux)
containerID := "testexportcontainerandimportimage"
dockerCmd(c, "run", "--name", containerID, "busybox", "true")
out, _ := dockerCmd(c, "export", containerID)
result := icmd.RunCmd(icmd.Cmd{
Command: []string{dockerBinary, "import", "-", "repo/testexp:v1"},
Stdin: strings.NewReader(out),
})
result.Assert(c, icmd.Success)
cleanedImageID := strings.TrimSpace(result.Combined())
c.Assert(cleanedImageID, checker.Not(checker.Equals), "", check.Commentf("output should have been an image id"))
}
// Used to test output flag in the export command
func (s *DockerSuite) TestExportContainerWithOutputAndImportImage(c *check.C) {
testRequires(c, DaemonIsLinux)
containerID := "testexportcontainerwithoutputandimportimage"
dockerCmd(c, "run", "--name", containerID, "busybox", "true")
dockerCmd(c, "export", "--output=testexp.tar", containerID)
defer os.Remove("testexp.tar")
resultCat := icmd.RunCommand("cat", "testexp.tar")
resultCat.Assert(c, icmd.Success)
result := icmd.RunCmd(icmd.Cmd{
Command: []string{dockerBinary, "import", "-", "repo/testexp:v1"},
Stdin: strings.NewReader(resultCat.Combined()),
})
result.Assert(c, icmd.Success)
cleanedImageID := strings.TrimSpace(result.Combined())
c.Assert(cleanedImageID, checker.Not(checker.Equals), "", check.Commentf("output should have been an image id"))
}