mirror of https://github.com/docker/docs.git
119 lines
3.0 KiB
Go
119 lines
3.0 KiB
Go
package archive
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import (
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"bytes"
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"os/exec"
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"path"
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"testing"
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"time"
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)
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func TestCmdStreamLargeStderr(t *testing.T) {
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cmd := exec.Command("/bin/sh", "-c", "dd if=/dev/zero bs=1k count=1000 of=/dev/stderr; echo hello")
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out, err := CmdStream(cmd, nil, nil)
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if err != nil {
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t.Fatalf("Failed to start command: %s", err)
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}
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errCh := make(chan error)
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go func() {
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_, err := io.Copy(ioutil.Discard, out)
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errCh <- err
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}()
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select {
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case err := <-errCh:
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if err != nil {
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t.Fatalf("Command should not have failed (err=%.100s...)", err)
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}
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case <-time.After(5 * time.Second):
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t.Fatalf("Command did not complete in 5 seconds; probable deadlock")
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}
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}
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func TestCmdStreamBad(t *testing.T) {
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badCmd := exec.Command("/bin/sh", "-c", "echo hello; echo >&2 error couldn\\'t reverse the phase pulser; exit 1")
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out, err := CmdStream(badCmd, nil, nil)
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if err != nil {
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t.Fatalf("Failed to start command: %s", err)
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}
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if output, err := ioutil.ReadAll(out); err == nil {
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t.Fatalf("Command should have failed")
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} else if err.Error() != "exit status 1: error couldn't reverse the phase pulser\n" {
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t.Fatalf("Wrong error value (%s)", err)
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} else if s := string(output); s != "hello\n" {
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t.Fatalf("Command output should be '%s', not '%s'", "hello\\n", output)
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}
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}
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func TestCmdStreamGood(t *testing.T) {
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cmd := exec.Command("/bin/sh", "-c", "echo hello; exit 0")
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out, err := CmdStream(cmd, nil, nil)
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if err != nil {
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t.Fatal(err)
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}
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if output, err := ioutil.ReadAll(out); err != nil {
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t.Fatalf("Command should not have failed (err=%s)", err)
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} else if s := string(output); s != "hello\n" {
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t.Fatalf("Command output should be '%s', not '%s'", "hello\\n", output)
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}
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}
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func tarUntar(t *testing.T, origin string, compression Compression) error {
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archive, err := Tar(origin, compression)
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if err != nil {
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t.Fatal(err)
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}
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buf := make([]byte, 10)
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if _, err := archive.Read(buf); err != nil {
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return err
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}
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archive = io.MultiReader(bytes.NewReader(buf), archive)
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detectedCompression := DetectCompression(buf)
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if detectedCompression.Extension() != compression.Extension() {
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return fmt.Errorf("Wrong compression detected. Actual compression: %s, found %s", compression.Extension(), detectedCompression.Extension())
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}
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tmp, err := ioutil.TempDir("", "docker-test-untar")
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if err != nil {
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return err
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}
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defer os.RemoveAll(tmp)
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if err := Untar(archive, tmp, nil); err != nil {
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return err
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}
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if _, err := os.Stat(tmp); err != nil {
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return err
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}
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return nil
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}
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func TestTarUntar(t *testing.T) {
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origin, err := ioutil.TempDir("", "docker-test-untar-origin")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(origin)
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if err := ioutil.WriteFile(path.Join(origin, "1"), []byte("hello world"), 0700); err != nil {
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t.Fatal(err)
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}
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if err := ioutil.WriteFile(path.Join(origin, "2"), []byte("welcome!"), 0700); err != nil {
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t.Fatal(err)
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}
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for _, c := range []Compression{
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Uncompressed,
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Gzip,
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Bzip2,
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Xz,
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} {
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if err := tarUntar(t, origin, c); err != nil {
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t.Fatalf("Error tar/untar for compression %s: %s", c.Extension(), err)
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}
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}
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}
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