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moby--moby/volumes/volume_test.go

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package volumes
import (
"strings"
"testing"
"github.com/docker/docker/pkg/stringutils"
)
func TestContainers(t *testing.T) {
v := &Volume{containers: make(map[string]struct{})}
id := "1234"
v.AddContainer(id)
if v.Containers()[0] != id {
t.Fatalf("adding a container ref failed")
}
v.RemoveContainer(id)
if len(v.Containers()) != 0 {
t.Fatalf("removing container failed")
}
}
// os.Stat(v.Path) is returning ErrNotExist, initialize catch it and try to
// mkdir v.Path but it dies and correctly returns the error
func TestInitializeCannotMkdirOnNonExistentPath(t *testing.T) {
v := &Volume{Path: "nonexistentpath"}
err := v.initialize()
if err == nil {
t.Fatal("Expected not to initialize volume with a non existent path")
}
if !strings.Contains(err.Error(), "mkdir : no such file or directory") {
t.Fatalf("Expected to get mkdir no such file or directory, got %s", err)
}
}
// os.Stat(v.Path) is NOT returning ErrNotExist so skip and return error from
// initialize
func TestInitializeCannotStatPathFileNameTooLong(t *testing.T) {
// ENAMETOOLONG
v := &Volume{Path: stringutils.GenerateRandomAlphaOnlyString(300)}
err := v.initialize()
if err == nil {
t.Fatal("Expected not to initialize volume with a non existent path")
}
if !strings.Contains(err.Error(), "file name too long") {
t.Fatalf("Expected to get ENAMETOOLONG error, got %s", err)
}
}