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274 lines
7.1 KiB
274 lines
7.1 KiB
/*
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Copyright 2016 The Kubernetes Authors All rights reserved.
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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 main
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import (
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"bytes"
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"io/ioutil"
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"os"
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"path/filepath"
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"strings"
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"testing"
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"github.com/ghodss/yaml"
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"k8s.io/helm/pkg/chartutil"
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"k8s.io/helm/pkg/helm/helmpath"
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"k8s.io/helm/pkg/proto/hapi/chart"
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"k8s.io/helm/pkg/provenance"
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"k8s.io/helm/pkg/repo"
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"k8s.io/helm/pkg/repo/repotest"
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)
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func TestDependencyUpdateCmd(t *testing.T) {
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hh, err := tempHelmHome(t)
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if err != nil {
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t.Fatal(err)
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}
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cleanup := resetEnv()
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defer func() {
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os.RemoveAll(hh.String())
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cleanup()
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}()
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settings.Home = hh
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srv := repotest.NewServer(hh.String())
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defer srv.Stop()
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copied, err := srv.CopyCharts("testdata/testcharts/*.tgz")
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if err != nil {
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t.Fatal(err)
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}
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t.Logf("Copied charts:\n%s", strings.Join(copied, "\n"))
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t.Logf("Listening on directory %s", srv.Root())
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chartname := "depup"
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if err := createTestingChart(hh.String(), chartname, srv.URL()); err != nil {
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t.Fatal(err)
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}
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out := bytes.NewBuffer(nil)
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duc := &dependencyUpdateCmd{out: out}
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duc.helmhome = helmpath.Home(hh)
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duc.chartpath = filepath.Join(hh.String(), chartname)
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if err := duc.run(); err != nil {
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output := out.String()
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t.Logf("Output: %s", output)
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t.Fatal(err)
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}
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output := out.String()
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// This is written directly to stdout, so we have to capture as is.
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if !strings.Contains(output, `update from the "test" chart repository`) {
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t.Errorf("Repo did not get updated\n%s", output)
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}
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// Make sure the actual file got downloaded.
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expect := filepath.Join(hh.String(), chartname, "charts/reqtest-0.1.0.tgz")
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if _, err := os.Stat(expect); err != nil {
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t.Fatal(err)
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}
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hash, err := provenance.DigestFile(expect)
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if err != nil {
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t.Fatal(err)
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}
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i, err := repo.LoadIndexFile(duc.helmhome.CacheIndex("test"))
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if err != nil {
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t.Fatal(err)
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}
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reqver := i.Entries["reqtest"][0]
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if h := reqver.Digest; h != hash {
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t.Errorf("Failed hash match: expected %s, got %s", hash, h)
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}
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// Now change the dependencies and update. This verifies that on update,
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// old dependencies are cleansed and new dependencies are added.
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reqfile := &chartutil.Requirements{
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Dependencies: []*chartutil.Dependency{
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{Name: "reqtest", Version: "0.1.0", Repository: srv.URL()},
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{Name: "compressedchart", Version: "0.3.0", Repository: srv.URL()},
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},
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}
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dir := filepath.Join(hh.String(), chartname)
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if err := writeRequirements(dir, reqfile); err != nil {
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t.Fatal(err)
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}
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if err := duc.run(); err != nil {
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output := out.String()
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t.Logf("Output: %s", output)
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t.Fatal(err)
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}
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// In this second run, we should see compressedchart-0.3.0.tgz, and not
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// the 0.1.0 version.
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expect = filepath.Join(hh.String(), chartname, "charts/compressedchart-0.3.0.tgz")
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if _, err := os.Stat(expect); err != nil {
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t.Fatalf("Expected %q: %s", expect, err)
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}
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dontExpect := filepath.Join(hh.String(), chartname, "charts/compressedchart-0.1.0.tgz")
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if _, err := os.Stat(dontExpect); err == nil {
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t.Fatalf("Unexpected %q", dontExpect)
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}
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}
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func TestDependencyUpdateCmd_SkipRefresh(t *testing.T) {
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hh, err := tempHelmHome(t)
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if err != nil {
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t.Fatal(err)
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}
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cleanup := resetEnv()
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defer func() {
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os.RemoveAll(hh.String())
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cleanup()
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}()
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settings.Home = hh
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srv := repotest.NewServer(hh.String())
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defer srv.Stop()
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copied, err := srv.CopyCharts("testdata/testcharts/*.tgz")
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if err != nil {
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t.Fatal(err)
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}
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t.Logf("Copied charts:\n%s", strings.Join(copied, "\n"))
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t.Logf("Listening on directory %s", srv.Root())
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chartname := "depup"
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if err := createTestingChart(hh.String(), chartname, srv.URL()); err != nil {
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t.Fatal(err)
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}
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out := bytes.NewBuffer(nil)
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duc := &dependencyUpdateCmd{out: out}
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duc.helmhome = helmpath.Home(hh)
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duc.chartpath = filepath.Join(hh.String(), chartname)
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duc.skipRefresh = true
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if err := duc.run(); err == nil {
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t.Fatal("Expected failure to find the repo with skipRefresh")
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}
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output := out.String()
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// This is written directly to stdout, so we have to capture as is.
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if strings.Contains(output, `update from the "test" chart repository`) {
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t.Errorf("Repo was unexpectedly updated\n%s", output)
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}
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}
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func TestDependencyUpdateCmd_DontDeleteOldChartsOnError(t *testing.T) {
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hh, err := tempHelmHome(t)
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if err != nil {
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t.Fatal(err)
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}
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cleanup := resetEnv()
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defer func() {
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os.RemoveAll(hh.String())
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cleanup()
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}()
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settings.Home = hh
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srv := repotest.NewServer(hh.String())
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defer srv.Stop()
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copied, err := srv.CopyCharts("testdata/testcharts/*.tgz")
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if err != nil {
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t.Fatal(err)
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}
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t.Logf("Copied charts:\n%s", strings.Join(copied, "\n"))
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t.Logf("Listening on directory %s", srv.Root())
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chartname := "depupdelete"
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if err := createTestingChart(hh.String(), chartname, srv.URL()); err != nil {
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t.Fatal(err)
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}
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out := bytes.NewBuffer(nil)
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duc := &dependencyUpdateCmd{out: out}
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duc.helmhome = helmpath.Home(hh)
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duc.chartpath = filepath.Join(hh.String(), chartname)
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if err := duc.run(); err != nil {
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output := out.String()
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t.Logf("Output: %s", output)
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t.Fatal(err)
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}
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// Chart repo is down
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srv.Stop()
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if err := duc.run(); err == nil {
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output := out.String()
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t.Logf("Output: %s", output)
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t.Fatal("Expected error, got nil")
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}
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// Make sure charts dir still has dependencies
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files, err := ioutil.ReadDir(filepath.Join(duc.chartpath, "charts"))
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if err != nil {
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t.Fatal(err)
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}
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dependencies := []string{"compressedchart-0.1.0.tgz", "reqtest-0.1.0.tgz"}
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if len(dependencies) != len(files) {
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t.Fatalf("Expected %d chart dependencies, got %d", len(dependencies), len(files))
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}
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for index, file := range files {
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if dependencies[index] != file.Name() {
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t.Fatalf("Chart dependency %s not matching %s", dependencies[index], file.Name())
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}
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}
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// Make sure tmpcharts is deleted
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if _, err := os.Stat(filepath.Join(duc.chartpath, "tmpcharts")); !os.IsNotExist(err) {
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t.Fatalf("tmpcharts dir still exists")
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}
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}
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// createTestingChart creates a basic chart that depends on reqtest-0.1.0
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//
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// The baseURL can be used to point to a particular repository server.
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func createTestingChart(dest, name, baseURL string) error {
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cfile := &chart.Metadata{
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Name: name,
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Version: "1.2.3",
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}
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dir := filepath.Join(dest, name)
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_, err := chartutil.Create(cfile, dest)
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if err != nil {
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return err
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}
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req := &chartutil.Requirements{
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Dependencies: []*chartutil.Dependency{
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{Name: "reqtest", Version: "0.1.0", Repository: baseURL},
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{Name: "compressedchart", Version: "0.1.0", Repository: baseURL},
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},
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}
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return writeRequirements(dir, req)
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}
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func writeRequirements(dir string, req *chartutil.Requirements) error {
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data, err := yaml.Marshal(req)
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if err != nil {
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return err
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}
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return ioutil.WriteFile(filepath.Join(dir, "requirements.yaml"), data, 0655)
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}
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