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Matthew Fisher authored
In third-party libraries, charts can be embedded in memory rather than in files, directories or tarballs. Exposing LoadFiles allows a third-party library the ability to load static templates in and spit out a *chart.Chart.
de6fb23e
/*Copyright 2016 The Kubernetes Authors All rights reserved.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-2.0Unless required by applicable law or agreed to in writing, softwaredistributed 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 andlimitations under the License.*/package chartutilimport ( "path" "testing" "k8s.io/helm/pkg/proto/hapi/chart")func TestLoadDir(t *testing.T) { c, err := Load("testdata/frobnitz") if err != nil { t.Fatalf("Failed to load testdata: %s", err) } verifyFrobnitz(t, c) verifyChart(t, c) verifyRequirements(t, c)}func TestLoadFile(t *testing.T) { c, err := Load("testdata/frobnitz-1.2.3.tgz") if err != nil { t.Fatalf("Failed to load testdata: %s", err) } verifyFrobnitz(t, c) verifyChart(t, c) verifyRequirements(t, c)}func TestLoadFiles(t *testing.T) { goodFiles := []*BufferedFile{ { Name: ChartfileName, Data: []byte(`apiVersion: v1name: frobnitzdescription: This is a frobnitz.version: "1.2.3"keywords: - frobnitz - sprocket - dodadmaintainers: - name: The Helm Team email: helm@example.com - name: Someone Else email: nobody@example.comsources: - https://example.com/foo/barhome: http://example.comicon: https://example.com/64x64.png`), }, { Name: ValuesfileName,7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
Data: []byte(defaultValues),
},
{
Name: path.Join("templates", DeploymentName),
Data: []byte(defaultDeployment),
},
{
Name: path.Join("templates", ServiceName),
Data: []byte(defaultService),
},
}
c, err := LoadFiles(goodFiles)
if err != nil {
t.Errorf("Expected good files to be loaded, got %v", err)
}
if c.Metadata.Name != "frobnitz" {
t.Errorf("Expected chart name to be 'frobnitz', got %s", c.Metadata.Name)
}
if c.Values.Raw != defaultValues {
t.Error("Expected chart values to be populated with default values")
}
if len(c.Templates) != 2 {
t.Errorf("Expected number of templates == 2, got %d", len(c.Templates))
}
c, err = LoadFiles([]*BufferedFile{})
if err == nil {
t.Fatal("Expected err to be non-nil")
}
if err.Error() != "chart metadata (Chart.yaml) missing" {
t.Errorf("Expected chart metadata missing error, got '%s'", err.Error())
}
// legacy check
c, err = LoadFiles([]*BufferedFile{
{
Name: "values.toml",
Data: []byte{},
},
})
if err == nil {
t.Fatal("Expected err to be non-nil")
}
if err.Error() != "values.toml is illegal as of 2.0.0-alpha.2" {
t.Errorf("Expected values.toml to be illegal, got '%s'", err.Error())
}
}
// Packaging the chart on a Windows machine will produce an
// archive that has \\ as delimiters. Test that we support these archives
func TestLoadFileBackslash(t *testing.T) {
c, err := Load("testdata/frobnitz_backslash-1.2.3.tgz")
if err != nil {
t.Fatalf("Failed to load testdata: %s", err)
}
verifyChartFileAndTemplate(t, c, "frobnitz_backslash")
verifyChart(t, c)
verifyRequirements(t, c)
}
func verifyChart(t *testing.T, c *chart.Chart) {
if c.Metadata.Name == "" {
t.Fatalf("No chart metadata found on %v", c)
}
t.Logf("Verifying chart %s", c.Metadata.Name)
if len(c.Templates) != 1 {
141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210
t.Errorf("Expected 1 template, got %d", len(c.Templates))
}
numfiles := 8
if len(c.Files) != numfiles {
t.Errorf("Expected %d extra files, got %d", numfiles, len(c.Files))
for _, n := range c.Files {
t.Logf("\t%s", n.TypeUrl)
}
}
if len(c.Dependencies) != 2 {
t.Errorf("Expected 2 dependencies, got %d (%v)", len(c.Dependencies), c.Dependencies)
for _, d := range c.Dependencies {
t.Logf("\tSubchart: %s\n", d.Metadata.Name)
}
}
expect := map[string]map[string]string{
"alpine": {
"version": "0.1.0",
},
"mariner": {
"version": "4.3.2",
},
}
for _, dep := range c.Dependencies {
if dep.Metadata == nil {
t.Fatalf("expected metadata on dependency: %v", dep)
}
exp, ok := expect[dep.Metadata.Name]
if !ok {
t.Fatalf("Unknown dependency %s", dep.Metadata.Name)
}
if exp["version"] != dep.Metadata.Version {
t.Errorf("Expected %s version %s, got %s", dep.Metadata.Name, exp["version"], dep.Metadata.Version)
}
}
}
func verifyRequirements(t *testing.T, c *chart.Chart) {
r, err := LoadRequirements(c)
if err != nil {
t.Fatal(err)
}
if len(r.Dependencies) != 2 {
t.Errorf("Expected 2 requirements, got %d", len(r.Dependencies))
}
tests := []*Dependency{
{Name: "alpine", Version: "0.1.0", Repository: "https://example.com/charts"},
{Name: "mariner", Version: "4.3.2", Repository: "https://example.com/charts"},
}
for i, tt := range tests {
d := r.Dependencies[i]
if d.Name != tt.Name {
t.Errorf("Expected dependency named %q, got %q", tt.Name, d.Name)
}
if d.Version != tt.Version {
t.Errorf("Expected dependency named %q to have version %q, got %q", tt.Name, tt.Version, d.Version)
}
if d.Repository != tt.Repository {
t.Errorf("Expected dependency named %q to have repository %q, got %q", tt.Name, tt.Repository, d.Repository)
}
}
}
func verifyRequirementsLock(t *testing.T, c *chart.Chart) {
r, err := LoadRequirementsLock(c)
if err != nil {
211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254
t.Fatal(err)
}
if len(r.Dependencies) != 2 {
t.Errorf("Expected 2 requirements, got %d", len(r.Dependencies))
}
tests := []*Dependency{
{Name: "alpine", Version: "0.1.0", Repository: "https://example.com/charts"},
{Name: "mariner", Version: "4.3.2", Repository: "https://example.com/charts"},
}
for i, tt := range tests {
d := r.Dependencies[i]
if d.Name != tt.Name {
t.Errorf("Expected dependency named %q, got %q", tt.Name, d.Name)
}
if d.Version != tt.Version {
t.Errorf("Expected dependency named %q to have version %q, got %q", tt.Name, tt.Version, d.Version)
}
if d.Repository != tt.Repository {
t.Errorf("Expected dependency named %q to have repository %q, got %q", tt.Name, tt.Repository, d.Repository)
}
}
}
func verifyFrobnitz(t *testing.T, c *chart.Chart) {
verifyChartFileAndTemplate(t, c, "frobnitz")
}
func verifyChartFileAndTemplate(t *testing.T, c *chart.Chart, name string) {
verifyChartfile(t, c.Metadata, name)
if len(c.Templates) != 1 {
t.Fatalf("Expected 1 template, got %d", len(c.Templates))
}
if c.Templates[0].Name != "templates/template.tpl" {
t.Errorf("Unexpected template: %s", c.Templates[0].Name)
}
if len(c.Templates[0].Data) == 0 {
t.Error("No template data.")
}
}