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moby--moby/pkg/chrootarchive/archive_test.go
Doug Davis 6d801a3caa Have .dockerignore support Dockerfile/.dockerignore
If .dockerignore mentions either then the client will send them to the
daemon but the daemon will erase them after the Dockerfile has been parsed
to simulate them never being sent in the first place.

an events test kept failing for me so I tried to fix that too

Closes #8330

Signed-off-by: Doug Davis <dug@us.ibm.com>
2015-01-06 10:57:48 -08:00

101 lines
2.3 KiB
Go

package chrootarchive
import (
"io"
"io/ioutil"
"os"
"path/filepath"
"testing"
"time"
"github.com/docker/docker/pkg/archive"
"github.com/docker/docker/pkg/reexec"
)
func init() {
reexec.Init()
}
func TestChrootTarUntar(t *testing.T) {
tmpdir, err := ioutil.TempDir("", "docker-TestChrootTarUntar")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tmpdir)
src := filepath.Join(tmpdir, "src")
if err := os.MkdirAll(src, 0700); err != nil {
t.Fatal(err)
}
if err := ioutil.WriteFile(filepath.Join(src, "toto"), []byte("hello toto"), 0644); err != nil {
t.Fatal(err)
}
if err := ioutil.WriteFile(filepath.Join(src, "lolo"), []byte("hello lolo"), 0644); err != nil {
t.Fatal(err)
}
stream, err := archive.Tar(src, archive.Uncompressed)
if err != nil {
t.Fatal(err)
}
dest := filepath.Join(tmpdir, "src")
if err := os.MkdirAll(dest, 0700); err != nil {
t.Fatal(err)
}
if err := Untar(stream, dest, &archive.TarOptions{ExcludePatterns: []string{"lolo"}}); err != nil {
t.Fatal(err)
}
}
type slowEmptyTarReader struct {
size int
offset int
chunkSize int
}
// Read is a slow reader of an empty tar (like the output of "tar c --files-from /dev/null")
func (s *slowEmptyTarReader) Read(p []byte) (int, error) {
time.Sleep(100 * time.Millisecond)
count := s.chunkSize
if len(p) < s.chunkSize {
count = len(p)
}
for i := 0; i < count; i++ {
p[i] = 0
}
s.offset += count
if s.offset > s.size {
return count, io.EOF
}
return count, nil
}
func TestChrootUntarEmptyArchiveFromSlowReader(t *testing.T) {
tmpdir, err := ioutil.TempDir("", "docker-TestChrootUntarEmptyArchiveFromSlowReader")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tmpdir)
dest := filepath.Join(tmpdir, "dest")
if err := os.MkdirAll(dest, 0700); err != nil {
t.Fatal(err)
}
stream := &slowEmptyTarReader{size: 10240, chunkSize: 1024}
if err := Untar(stream, dest, nil); err != nil {
t.Fatal(err)
}
}
func TestChrootApplyEmptyArchiveFromSlowReader(t *testing.T) {
tmpdir, err := ioutil.TempDir("", "docker-TestChrootApplyEmptyArchiveFromSlowReader")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tmpdir)
dest := filepath.Join(tmpdir, "dest")
if err := os.MkdirAll(dest, 0700); err != nil {
t.Fatal(err)
}
stream := &slowEmptyTarReader{size: 10240, chunkSize: 1024}
if _, err := ApplyLayer(dest, stream); err != nil {
t.Fatal(err)
}
}