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helm/cmd/tiller/environment/environment_test.go

136 lines
3.1 KiB

package environment
import (
"bytes"
"io"
"testing"
"github.com/kubernetes/helm/pkg/proto/hapi/chart"
"github.com/kubernetes/helm/pkg/proto/hapi/release"
)
type mockEngine struct {
out map[string]string
}
func (e *mockEngine) Render(chrt *chart.Chart, v *chart.Config, o map[string]interface{}) (map[string]string, error) {
return e.out, nil
}
type mockReleaseStorage struct {
rel *release.Release
}
func (r *mockReleaseStorage) Create(v *release.Release) error {
r.rel = v
return nil
}
func (r *mockReleaseStorage) Read(k string) (*release.Release, error) {
return r.rel, nil
}
func (r *mockReleaseStorage) Update(v *release.Release) error {
r.rel = v
return nil
}
func (r *mockReleaseStorage) Delete(k string) (*release.Release, error) {
return r.rel, nil
}
func (r *mockReleaseStorage) List() ([]*release.Release, error) {
return []*release.Release{}, nil
}
func (r *mockReleaseStorage) Query(labels map[string]string) ([]*release.Release, error) {
return []*release.Release{}, nil
}
func (r *mockReleaseStorage) History(n string) ([]*release.Release, error) {
res := []*release.Release{}
rel, err := r.Read(n)
if err != nil {
return res, err
}
res = append(res, rel)
return res, nil
}
type mockKubeClient struct {
}
func (k *mockKubeClient) Create(ns string, r io.Reader) error {
return nil
}
func (k *mockKubeClient) Delete(ns string, r io.Reader) error {
return nil
}
var _ Engine = &mockEngine{}
var _ ReleaseStorage = &mockReleaseStorage{}
var _ KubeClient = &mockKubeClient{}
var _ KubeClient = &PrintingKubeClient{}
func TestEngine(t *testing.T) {
eng := &mockEngine{out: map[string]string{"albatross": "test"}}
env := New()
env.EngineYard = EngineYard(map[string]Engine{"test": eng})
if engine, ok := env.EngineYard.Get("test"); !ok {
t.Errorf("failed to get engine from EngineYard")
} else if out, err := engine.Render(&chart.Chart{}, &chart.Config{}, map[string]interface{}{}); err != nil {
t.Errorf("unexpected template error: %s", err)
} else if out["albatross"] != "test" {
t.Errorf("expected 'test', got %q", out["albatross"])
}
}
func TestReleaseStorage(t *testing.T) {
rs := &mockReleaseStorage{}
env := New()
env.Releases = rs
release := &release.Release{Name: "mariner"}
if err := env.Releases.Create(release); err != nil {
t.Fatalf("failed to store release: %s", err)
}
if err := env.Releases.Update(release); err != nil {
t.Fatalf("failed to update release: %s", err)
}
if v, err := env.Releases.Read("albatross"); err != nil {
t.Errorf("Error fetching release: %s", err)
} else if v.Name != "mariner" {
t.Errorf("Expected mariner, got %q", v.Name)
}
if _, err := env.Releases.Delete("albatross"); err != nil {
t.Fatalf("failed to delete release: %s", err)
}
}
func TestKubeClient(t *testing.T) {
kc := &mockKubeClient{}
env := New()
env.KubeClient = kc
manifests := map[string]string{
"foo": "name: value\n",
"bar": "name: value\n",
}
b := bytes.NewBuffer(nil)
for _, content := range manifests {
b.WriteString("\n---\n")
b.WriteString(content)
}
if err := env.KubeClient.Create("sharry-bobbins", b); err != nil {
t.Errorf("Kubeclient failed: %s", err)
}
}