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helm/pkg/registry/client_test.go

188 lines
5.0 KiB

/*
Copyright The Helm 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 registry
import (
"bytes"
"context"
"fmt"
"io"
"net"
"os"
"testing"
"time"
"github.com/containerd/containerd/remotes/docker"
"github.com/docker/distribution/configuration"
"github.com/docker/distribution/registry"
_ "github.com/docker/distribution/registry/storage/driver/inmemory"
"github.com/stretchr/testify/suite"
"k8s.io/helm/pkg/chart"
)
var (
testCacheRootDir = "helm-registry-test"
)
type RegistryClientTestSuite struct {
suite.Suite
Out io.Writer
DockerRegistryHost string
CacheRootDir string
RegistryClient *Client
}
func (suite *RegistryClientTestSuite) SetupSuite() {
suite.CacheRootDir = testCacheRootDir
// Init test client
var out bytes.Buffer
suite.Out = &out
suite.RegistryClient = NewClient(&ClientOptions{
Out: suite.Out,
Resolver: Resolver{
Resolver: docker.NewResolver(docker.ResolverOptions{}),
},
CacheRootDir: suite.CacheRootDir,
})
// Registry config
config := &configuration.Configuration{}
port, err := getFreePort()
if err != nil {
suite.Nil(err, "no error finding free port for test registry")
}
suite.DockerRegistryHost = fmt.Sprintf("localhost:%d", port)
config.HTTP.Addr = fmt.Sprintf(":%d", port)
config.HTTP.DrainTimeout = time.Duration(10) * time.Second
config.Storage = map[string]configuration.Parameters{"inmemory": map[string]interface{}{}}
dockerRegistry, err := registry.NewRegistry(context.Background(), config)
suite.Nil(err, "no error creating test registry")
// Start Docker registry
go dockerRegistry.ListenAndServe()
}
func (suite *RegistryClientTestSuite) TearDownSuite() {
os.RemoveAll(suite.CacheRootDir)
}
func (suite *RegistryClientTestSuite) Test_0_SaveChart() {
ref, err := ParseReference(fmt.Sprintf("%s/testrepo/testchart:1.2.3", suite.DockerRegistryHost))
suite.Nil(err)
// empty chart
err = suite.RegistryClient.SaveChart(&chart.Chart{}, ref)
suite.NotNil(err)
// valid chart
ch := &chart.Chart{}
ch.Metadata = &chart.Metadata{
Name: "testchart",
Version: "1.2.3",
}
err = suite.RegistryClient.SaveChart(ch, ref)
suite.Nil(err)
}
func (suite *RegistryClientTestSuite) Test_1_LoadChart() {
// non-existent ref
ref, err := ParseReference(fmt.Sprintf("%s/testrepo/whodis:9.9.9", suite.DockerRegistryHost))
suite.Nil(err)
ch, err := suite.RegistryClient.LoadChart(ref)
suite.NotNil(err)
// existing ref
ref, err = ParseReference(fmt.Sprintf("%s/testrepo/testchart:1.2.3", suite.DockerRegistryHost))
suite.Nil(err)
ch, err = suite.RegistryClient.LoadChart(ref)
suite.Nil(err)
suite.Equal("testchart", ch.Metadata.Name)
suite.Equal("1.2.3", ch.Metadata.Version)
}
func (suite *RegistryClientTestSuite) Test_2_PushChart() {
// non-existent ref
ref, err := ParseReference(fmt.Sprintf("%s/testrepo/whodis:9.9.9", suite.DockerRegistryHost))
suite.Nil(err)
err = suite.RegistryClient.PushChart(ref)
suite.NotNil(err)
// existing ref
ref, err = ParseReference(fmt.Sprintf("%s/testrepo/testchart:1.2.3", suite.DockerRegistryHost))
suite.Nil(err)
err = suite.RegistryClient.PushChart(ref)
suite.Nil(err)
}
func (suite *RegistryClientTestSuite) Test_3_PullChart() {
// non-existent ref
ref, err := ParseReference(fmt.Sprintf("%s/testrepo/whodis:9.9.9", suite.DockerRegistryHost))
suite.Nil(err)
err = suite.RegistryClient.PullChart(ref)
suite.NotNil(err)
// existing ref
ref, err = ParseReference(fmt.Sprintf("%s/testrepo/testchart:1.2.3", suite.DockerRegistryHost))
suite.Nil(err)
err = suite.RegistryClient.PullChart(ref)
suite.Nil(err)
}
func (suite *RegistryClientTestSuite) Test_4_PrintChartTable() {
err := suite.RegistryClient.PrintChartTable()
suite.Nil(err)
}
func (suite *RegistryClientTestSuite) Test_5_RemoveChart() {
// non-existent ref
ref, err := ParseReference(fmt.Sprintf("%s/testrepo/whodis:9.9.9", suite.DockerRegistryHost))
suite.Nil(err)
err = suite.RegistryClient.RemoveChart(ref)
suite.NotNil(err)
// existing ref
ref, err = ParseReference(fmt.Sprintf("%s/testrepo/testchart:1.2.3", suite.DockerRegistryHost))
suite.Nil(err)
err = suite.RegistryClient.RemoveChart(ref)
suite.Nil(err)
}
func TestRegistryClientTestSuite(t *testing.T) {
suite.Run(t, new(RegistryClientTestSuite))
}
// borrowed from https://github.com/phayes/freeport
func getFreePort() (int, error) {
addr, err := net.ResolveTCPAddr("tcp", "localhost:0")
if err != nil {
return 0, err
}
l, err := net.ListenTCP("tcp", addr)
if err != nil {
return 0, err
}
defer l.Close()
return l.Addr().(*net.TCPAddr).Port, nil
}