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/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package apply
import (
"testing"
)
func TestGetOverlayPath(t *testing.T) {
good := []string{"upperdir=/test/upper", "lowerdir=/test/lower1:/test/lower2", "workdir=/test/work"}
path, parents, err := getOverlayPath(good)
if err != nil {
t.Fatalf("Get overlay path failed: %v", err)
}
if path != "/test/upper" {
t.Fatalf("Unexpected upperdir: %q", path)
}
if len(parents) != 2 || parents[0] != "/test/lower1" || parents[1] != "/test/lower2" {
t.Fatalf("Unexpected parents: %v", parents)
}
bad := []string{"lowerdir=/test/lower"}
_, _, err = getOverlayPath(bad)
if err == nil {
t.Fatalf("An error is expected")
}
}
func TestGetAufsPath(t *testing.T) {
for _, test := range []struct {
options []string
expectErr bool
}{
{
options: []string{"random:option", "br:/test/rw=rw:/test/ro=ro+wh"},
expectErr: false,
},
{
options: []string{"random:option"},
expectErr: true,
},
{
options: []string{"br:/test/ro=ro+wh"},
expectErr: true,
},
} {
path, parents, err := getAufsPath(test.options)
if test.expectErr {
if err == nil {
t.Fatalf("An error is expected")
}
continue
}
if err != nil {
t.Fatalf("Get aufs path failed: %v", err)
}
if path != "/test/rw" {
t.Fatalf("Unexpected rw dir: %q", path)
}
if len(parents) != 1 || parents[0] != "/test/ro" {
t.Fatalf("Unexpected parents: %v", parents)
}
}
}
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