104 lines
2.5 KiB
Go
104 lines
2.5 KiB
Go
// +build linux
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/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package devmapper
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import (
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"io/ioutil"
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"os"
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"testing"
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"github.com/hashicorp/go-multierror"
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"github.com/pelletier/go-toml"
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"gotest.tools/v3/assert"
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is "gotest.tools/v3/assert/cmp"
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)
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func TestLoadConfig(t *testing.T) {
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expected := Config{
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RootPath: "/tmp",
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PoolName: "test",
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BaseImageSize: "128Mb",
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}
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file, err := ioutil.TempFile("", "devmapper-config-")
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assert.NilError(t, err)
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encoder := toml.NewEncoder(file)
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err = encoder.Encode(&expected)
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assert.NilError(t, err)
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defer func() {
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err := file.Close()
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assert.NilError(t, err)
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err = os.Remove(file.Name())
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assert.NilError(t, err)
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}()
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loaded, err := LoadConfig(file.Name())
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assert.NilError(t, err)
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assert.Equal(t, loaded.RootPath, expected.RootPath)
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assert.Equal(t, loaded.PoolName, expected.PoolName)
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assert.Equal(t, loaded.BaseImageSize, expected.BaseImageSize)
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assert.Assert(t, loaded.BaseImageSizeBytes == 128*1024*1024)
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}
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func TestLoadConfigInvalidPath(t *testing.T) {
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_, err := LoadConfig("")
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assert.Equal(t, os.ErrNotExist, err)
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_, err = LoadConfig("/dev/null")
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assert.Assert(t, err != nil)
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}
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func TestParseInvalidData(t *testing.T) {
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config := Config{
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BaseImageSize: "y",
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}
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err := config.parse()
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assert.Error(t, err, "failed to parse base image size: 'y': invalid size: 'y'")
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}
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func TestFieldValidation(t *testing.T) {
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config := &Config{}
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err := config.Validate()
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assert.Assert(t, err != nil)
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multErr := (err).(*multierror.Error)
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assert.Assert(t, is.Len(multErr.Errors, 3))
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assert.Assert(t, multErr.Errors[0] != nil, "pool_name is empty")
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assert.Assert(t, multErr.Errors[1] != nil, "root_path is empty")
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assert.Assert(t, multErr.Errors[2] != nil, "base_image_size is empty")
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}
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func TestExistingPoolFieldValidation(t *testing.T) {
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config := &Config{
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PoolName: "test",
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RootPath: "test",
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BaseImageSize: "10mb",
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}
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err := config.Validate()
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assert.NilError(t, err)
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}
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