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// Copyright (c) 2022, Sylabs Inc. All rights reserved.
// This software is licensed under a 3-clause BSD license. Please consult the
// LICENSE.md file distributed with the sources of this project regarding your
// rights to use or distribute this software.
package oci
import (
"os/user"
"reflect"
"testing"
"github.com/sylabs/singularity/v4/internal/pkg/runtime/launcher"
"github.com/sylabs/singularity/v4/internal/pkg/test"
"github.com/sylabs/singularity/v4/internal/pkg/util/fs/fuse"
"github.com/sylabs/singularity/v4/pkg/util/singularityconf"
)
func TestNewLauncher(t *testing.T) {
test.DropPrivilege(t)
defer test.ResetPrivilege(t)
sc, err := singularityconf.GetConfig(nil)
if err != nil {
t.Fatalf("while initializing singularityconf: %s", err)
}
singularityconf.SetCurrentConfig(sc)
u, err := user.Current()
if err != nil {
t.Fatalf("while getting current user: %s", err)
}
tests := []struct {
name string
opts []launcher.Option
want *Launcher
wantErr bool
}{
{
name: "default",
want: &Launcher{
cfg: launcher.Options{WritableTmpfs: true},
singularityConf: sc,
homeHost: u.HomeDir,
homeSrc: "",
homeDest: u.HomeDir,
imageMountsByImagePath: make(map[string]*fuse.ImageMount),
imageMountsByMountpoint: make(map[string]*fuse.ImageMount),
},
},
{
name: "homeDest",
opts: []launcher.Option{
launcher.OptHome("/home/dest", true, false),
},
want: &Launcher{
cfg: launcher.Options{HomeDir: "/home/dest", CustomHome: true, WritableTmpfs: true},
singularityConf: sc,
homeHost: u.HomeDir,
homeSrc: "",
homeDest: "/home/dest",
imageMountsByImagePath: make(map[string]*fuse.ImageMount),
imageMountsByMountpoint: make(map[string]*fuse.ImageMount),
},
wantErr: false,
},
{
name: "homeSrcDest",
opts: []launcher.Option{
launcher.OptHome("/home/src:/home/dest", true, false),
},
want: &Launcher{
cfg: launcher.Options{HomeDir: "/home/src:/home/dest", CustomHome: true, WritableTmpfs: true},
singularityConf: sc,
homeHost: u.HomeDir,
homeSrc: "/home/src",
homeDest: "/home/dest",
imageMountsByImagePath: make(map[string]*fuse.ImageMount),
imageMountsByMountpoint: make(map[string]*fuse.ImageMount),
},
wantErr: false,
},
{
name: "no-compat",
opts: []launcher.Option{
launcher.OptNoCompat(true),
},
want: &Launcher{
cfg: launcher.Options{NoCompat: true, WritableTmpfs: false},
singularityConf: sc,
homeHost: u.HomeDir,
homeSrc: "",
homeDest: u.HomeDir,
imageMountsByImagePath: make(map[string]*fuse.ImageMount),
imageMountsByMountpoint: make(map[string]*fuse.ImageMount),
},
wantErr: false,
},
{
name: "no-compat_writable-tmpfs",
opts: []launcher.Option{
launcher.OptNoCompat(true),
launcher.OptWritableTmpfs(true),
},
want: &Launcher{
cfg: launcher.Options{NoCompat: true, WritableTmpfs: true},
singularityConf: sc,
homeHost: u.HomeDir,
homeSrc: "",
homeDest: u.HomeDir,
imageMountsByImagePath: make(map[string]*fuse.ImageMount),
imageMountsByMountpoint: make(map[string]*fuse.ImageMount),
},
wantErr: false,
},
{
name: "unsupportedOption",
opts: []launcher.Option{
launcher.OptSecurity([]string{"seccomp:example.json"}),
},
want: nil,
wantErr: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got, err := NewLauncher(tt.opts...)
if (err != nil) != tt.wantErr {
t.Errorf("NewLauncher() error = %v, wantErr %v", err, tt.wantErr)
return
}
if !reflect.DeepEqual(got, tt.want) {
t.Errorf("NewLauncher() = %v, want %v", got, tt.want)
}
})
}
}
func Test_normalizeImageRef(t *testing.T) {
tests := []struct {
name string
imageRef string
want string
wantErr bool
}{
{
name: "ext3 image",
imageRef: "../../../../../test/images/extfs-for-overlay.img",
want: "",
wantErr: true,
},
{
name: "squashfs image",
imageRef: "../../../../../test/images/squashfs-for-overlay.img",
want: "",
wantErr: true,
},
{
name: "sif image",
imageRef: "../../../../../test/images/empty.sif",
want: "sif:../../../../../test/images/empty.sif",
wantErr: false,
},
{
name: "oci ref",
imageRef: "oci:/my/layout",
want: "oci:/my/layout",
wantErr: false,
},
{
name: "oci sif",
imageRef: "../../../../../test/images/empty.oci.sif",
want: "oci-sif:../../../../../test/images/empty.oci.sif",
wantErr: false,
},
{
name: "oci sif prefixed",
imageRef: "oci-sif:../../../../../test/images/empty.oci.sif",
want: "oci-sif:../../../../../test/images/empty.oci.sif",
wantErr: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got, err := normalizeImageRef(tt.imageRef)
if (err != nil) != tt.wantErr {
t.Errorf("normalizeImageRef() error = %v, wantErr %v", err, tt.wantErr)
return
}
if got != tt.want {
t.Errorf("normalizeImageRef() = %v, want %v", got, tt.want)
}
})
}
}
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