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732 lines
15 KiB
732 lines
15 KiB
/*
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Copyright 2015 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 expander
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import (
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"fmt"
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"path/filepath"
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"reflect"
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"runtime"
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"strings"
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"testing"
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"github.com/kubernetes/helm/pkg/chart"
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"github.com/kubernetes/helm/pkg/common"
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"github.com/kubernetes/helm/pkg/expansion"
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)
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var expanderName = "../../../expansion/expansion.py"
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// content provides an easy way to provide file content verbatim in tests.
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func content(lines []string) []byte {
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return []byte(strings.Join(lines, "\n") + "\n")
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}
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func getChartNameFromPC(pc uintptr) string {
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rf := runtime.FuncForPC(pc)
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fn := rf.Name()
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bn := filepath.Base(fn)
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split := strings.Split(bn, ".")
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if len(split) > 1 {
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split = split[1:]
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}
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cn := fmt.Sprintf("%s-1.2.3.tgz", split[0])
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return cn
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}
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func getChartURLFromPC(pc uintptr) string {
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cn := getChartNameFromPC(pc)
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cu := fmt.Sprintf("gs://kubernetes-charts-testing/%s", cn)
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return cu
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}
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func getTestChartName(t *testing.T) string {
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pc, _, _, _ := runtime.Caller(1)
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cu := getChartURLFromPC(pc)
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cl, err := chart.Parse(cu)
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if err != nil {
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t.Fatalf("cannot parse chart reference %s: %s", cu, err)
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}
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return cl.Name
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}
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func getTestChartURL() string {
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pc, _, _, _ := runtime.Caller(1)
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cu := getChartURLFromPC(pc)
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return cu
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}
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func testExpansion(t *testing.T, req *expansion.ServiceRequest,
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expResponse *expansion.ServiceResponse, expError string) {
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backend := NewExpander(expanderName)
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response, err := backend.ExpandChart(req)
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if err != nil {
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message := err.Error()
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if expResponse != nil || !strings.Contains(message, expError) {
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t.Fatalf("unexpected error: %s\n", message)
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}
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} else {
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if expResponse == nil {
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t.Fatalf("expected error did not occur: %s\n", expError)
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}
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if !reflect.DeepEqual(response, expResponse) {
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message := fmt.Sprintf(
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"want:\n%s\nhave:\n%s\n", expResponse, response)
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t.Fatalf("output mismatch:\n%s\n", message)
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}
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}
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}
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var pyExpander = &chart.Expander{
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Name: "ExpandyBird",
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Entrypoint: "templates/main.py",
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}
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var jinjaExpander = &chart.Expander{
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Name: "ExpandyBird",
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Entrypoint: "templates/main.jinja",
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}
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func TestEmptyJinja(t *testing.T) {
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testExpansion(
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t,
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&expansion.ServiceRequest{
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ChartInvocation: &common.Resource{
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Name: "test_invocation",
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Type: getTestChartURL(),
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},
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Chart: &chart.Content{
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Chartfile: &chart.Chartfile{
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Name: getTestChartName(t),
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Expander: jinjaExpander,
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},
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Members: []*chart.Member{
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{
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Path: "templates/main.jinja",
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Content: content([]string{"resources:"}),
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},
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},
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},
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},
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&expansion.ServiceResponse{
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Resources: []interface{}{},
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},
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"", // Error
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)
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}
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func TestEmptyPython(t *testing.T) {
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testExpansion(
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t,
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&expansion.ServiceRequest{
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ChartInvocation: &common.Resource{
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Name: "test_invocation",
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Type: getTestChartURL(),
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},
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Chart: &chart.Content{
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Chartfile: &chart.Chartfile{
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Name: getTestChartName(t),
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Expander: pyExpander,
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},
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Members: []*chart.Member{
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{
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Path: "templates/main.py",
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Content: content([]string{
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"def GenerateConfig(ctx):",
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" return 'resources:'",
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}),
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},
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},
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},
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},
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&expansion.ServiceResponse{
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Resources: []interface{}{},
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},
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"", // Error
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)
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}
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func TestSimpleJinja(t *testing.T) {
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testExpansion(
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t,
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&expansion.ServiceRequest{
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ChartInvocation: &common.Resource{
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Name: "test_invocation",
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Type: getTestChartURL(),
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},
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Chart: &chart.Content{
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Chartfile: &chart.Chartfile{
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Name: getTestChartName(t),
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Expander: jinjaExpander,
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},
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Members: []*chart.Member{
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{
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Path: "templates/main.jinja",
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Content: content([]string{
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"resources:",
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"- name: foo",
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" type: bar",
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}),
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},
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},
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},
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},
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&expansion.ServiceResponse{
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Resources: []interface{}{
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map[string]interface{}{
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"name": "foo",
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"type": "bar",
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},
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},
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},
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"", // Error
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)
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}
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func TestSimplePython(t *testing.T) {
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testExpansion(
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t,
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&expansion.ServiceRequest{
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ChartInvocation: &common.Resource{
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Name: "test_invocation",
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Type: getTestChartURL(),
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},
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Chart: &chart.Content{
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Chartfile: &chart.Chartfile{
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Name: getTestChartName(t),
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Expander: pyExpander,
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},
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Members: []*chart.Member{
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{
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Path: "templates/main.py",
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Content: content([]string{
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"def GenerateConfig(ctx):",
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" return '''resources:",
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"- name: foo",
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" type: bar",
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"'''",
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}),
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},
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},
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},
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},
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&expansion.ServiceResponse{
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Resources: []interface{}{
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map[string]interface{}{
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"name": "foo",
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"type": "bar",
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},
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},
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},
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"", // Error
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)
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}
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func TestPropertiesJinja(t *testing.T) {
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testExpansion(
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t,
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&expansion.ServiceRequest{
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ChartInvocation: &common.Resource{
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Name: "test_invocation",
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Type: getTestChartURL(),
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Properties: map[string]interface{}{
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"prop1": 3.0,
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"prop2": "foo",
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},
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},
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Chart: &chart.Content{
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Chartfile: &chart.Chartfile{
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Name: getTestChartName(t),
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Expander: jinjaExpander,
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},
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Members: []*chart.Member{
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{
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Path: "templates/main.jinja",
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Content: content([]string{
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"resources:",
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"- name: foo",
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" type: {{ properties.prop2 }}",
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" properties:",
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" something: {{ properties.prop1 }}",
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}),
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},
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},
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},
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},
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&expansion.ServiceResponse{
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Resources: []interface{}{
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map[string]interface{}{
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"name": "foo",
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"properties": map[string]interface{}{
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"something": 3.0,
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},
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"type": "foo",
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},
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},
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},
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"", // Error
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)
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}
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func TestPropertiesPython(t *testing.T) {
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testExpansion(
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t,
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&expansion.ServiceRequest{
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ChartInvocation: &common.Resource{
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Name: "test_invocation",
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Type: getTestChartURL(),
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Properties: map[string]interface{}{
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"prop1": 3.0,
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"prop2": "foo",
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},
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},
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Chart: &chart.Content{
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Chartfile: &chart.Chartfile{
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Name: getTestChartName(t),
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Expander: pyExpander,
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},
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Members: []*chart.Member{
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{
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Path: "templates/main.py",
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Content: content([]string{
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"def GenerateConfig(ctx):",
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" return '''resources:",
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"- name: foo",
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" type: %(prop2)s",
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" properties:",
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" something: %(prop1)s",
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"''' % ctx.properties",
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}),
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},
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},
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},
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},
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&expansion.ServiceResponse{
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Resources: []interface{}{
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map[string]interface{}{
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"name": "foo",
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"properties": map[string]interface{}{
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"something": 3.0,
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},
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"type": "foo",
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},
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},
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},
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"", // Error
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)
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}
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func TestMultiFileJinja(t *testing.T) {
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testExpansion(
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t,
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&expansion.ServiceRequest{
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ChartInvocation: &common.Resource{
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Name: "test_invocation",
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Type: getTestChartURL(),
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},
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Chart: &chart.Content{
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Chartfile: &chart.Chartfile{
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Name: getTestChartName(t),
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Expander: jinjaExpander,
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},
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Members: []*chart.Member{
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{
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Path: "templates/main.jinja",
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Content: content([]string{"{% include 'templates/secondary.jinja' %}"}),
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},
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{
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Path: "templates/secondary.jinja",
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Content: content([]string{
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"resources:",
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"- name: foo",
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" type: bar",
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}),
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},
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},
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},
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},
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&expansion.ServiceResponse{
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Resources: []interface{}{
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map[string]interface{}{
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"name": "foo",
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"type": "bar",
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},
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},
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},
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"", // Error
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)
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}
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var schemaContent = content([]string{
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`{`,
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` "required": ["prop1", "prop2"],`,
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` "additionalProperties": false,`,
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` "properties": {`,
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` "prop1": {`,
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` "description": "Nice description.",`,
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` "type": "integer"`,
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` },`,
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` "prop2": {`,
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` "description": "Nice description.",`,
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` "type": "string"`,
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` }`,
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` }`,
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`}`,
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})
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func TestSchema(t *testing.T) {
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testExpansion(
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t,
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&expansion.ServiceRequest{
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ChartInvocation: &common.Resource{
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Name: "test_invocation",
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Type: getTestChartURL(),
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Properties: map[string]interface{}{
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"prop1": 3.0,
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"prop2": "foo",
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},
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},
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Chart: &chart.Content{
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Chartfile: &chart.Chartfile{
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Name: getTestChartName(t),
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Expander: jinjaExpander,
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Schema: "Schema.yaml",
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},
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Members: []*chart.Member{
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{
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Path: "Schema.yaml",
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Content: schemaContent,
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},
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{
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Path: "templates/main.jinja",
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Content: content([]string{
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"resources:",
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"- name: foo",
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" type: {{ properties.prop2 }}",
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" properties:",
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" something: {{ properties.prop1 }}",
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}),
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},
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},
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},
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},
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&expansion.ServiceResponse{
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Resources: []interface{}{
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map[string]interface{}{
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"name": "foo",
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"properties": map[string]interface{}{
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"something": 3.0,
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},
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"type": "foo",
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},
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},
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},
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"", // Error
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)
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}
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func TestSchemaFail(t *testing.T) {
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testExpansion(
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t,
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&expansion.ServiceRequest{
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ChartInvocation: &common.Resource{
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Name: "test_invocation",
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Type: getTestChartURL(),
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Properties: map[string]interface{}{
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"prop1": 3.0,
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"prop3": "foo",
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},
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},
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Chart: &chart.Content{
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Chartfile: &chart.Chartfile{
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Name: getTestChartName(t),
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Expander: jinjaExpander,
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Schema: "Schema.yaml",
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},
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Members: []*chart.Member{
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{
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Path: "Schema.yaml",
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Content: schemaContent,
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},
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{
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Path: "templates/main.jinja",
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Content: content([]string{
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"resources:",
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"- name: foo",
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" type: {{ properties.prop2 }}",
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" properties:",
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" something: {{ properties.prop1 }}",
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}),
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},
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},
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},
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},
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nil, // Response.
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"Invalid properties for",
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)
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}
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|
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func TestMultiFileJinjaMissing(t *testing.T) {
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testExpansion(
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t,
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&expansion.ServiceRequest{
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ChartInvocation: &common.Resource{
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Name: "test_invocation",
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Type: getTestChartURL(),
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},
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Chart: &chart.Content{
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Chartfile: &chart.Chartfile{
|
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Name: getTestChartName(t),
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Expander: jinjaExpander,
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},
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Members: []*chart.Member{
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{
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Path: "templates/main.jinja",
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Content: content([]string{"{% include 'templates/secondary.jinja' %}"}),
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},
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},
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},
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},
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nil, // Response
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"TemplateNotFound: templates/secondary.jinja",
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)
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}
|
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|
|
func TestMultiFilePython(t *testing.T) {
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testExpansion(
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t,
|
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&expansion.ServiceRequest{
|
|
ChartInvocation: &common.Resource{
|
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Name: "test_invocation",
|
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Type: getTestChartURL(),
|
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},
|
|
Chart: &chart.Content{
|
|
Chartfile: &chart.Chartfile{
|
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Name: getTestChartName(t),
|
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Expander: pyExpander,
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},
|
|
Members: []*chart.Member{
|
|
{
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Path: "templates/main.py",
|
|
Content: content([]string{
|
|
"from templates import second",
|
|
"import templates.third",
|
|
"def GenerateConfig(ctx):",
|
|
" t2 = second.Gen()",
|
|
" t3 = templates.third.Gen()",
|
|
" return t2",
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}),
|
|
},
|
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{
|
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Path: "templates/second.py",
|
|
Content: content([]string{
|
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"def Gen():",
|
|
" return '''resources:",
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"- name: foo",
|
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" type: bar",
|
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"'''",
|
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}),
|
|
},
|
|
{
|
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Path: "templates/third.py",
|
|
Content: content([]string{
|
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"def Gen():",
|
|
" return '''resources:",
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"- name: foo",
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" type: bar",
|
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"'''",
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}),
|
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},
|
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},
|
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},
|
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},
|
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&expansion.ServiceResponse{
|
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Resources: []interface{}{
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map[string]interface{}{
|
|
"name": "foo",
|
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"type": "bar",
|
|
},
|
|
},
|
|
},
|
|
"", // Error
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)
|
|
}
|
|
|
|
func TestMultiFilePythonMissing(t *testing.T) {
|
|
testExpansion(
|
|
t,
|
|
&expansion.ServiceRequest{
|
|
ChartInvocation: &common.Resource{
|
|
Name: "test_invocation",
|
|
Type: getTestChartURL(),
|
|
},
|
|
Chart: &chart.Content{
|
|
Chartfile: &chart.Chartfile{
|
|
Name: getTestChartName(t),
|
|
Expander: pyExpander,
|
|
},
|
|
Members: []*chart.Member{
|
|
{
|
|
Path: "templates/main.py",
|
|
Content: content([]string{
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"from templates import second",
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}),
|
|
},
|
|
},
|
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},
|
|
},
|
|
nil, // Response
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|
"cannot import name second", // Error
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|
)
|
|
}
|
|
|
|
func TestWrongChartName(t *testing.T) {
|
|
testExpansion(
|
|
t,
|
|
&expansion.ServiceRequest{
|
|
ChartInvocation: &common.Resource{
|
|
Name: "test_invocation",
|
|
Type: getTestChartURL(),
|
|
},
|
|
Chart: &chart.Content{
|
|
Chartfile: &chart.Chartfile{
|
|
Name: "WrongName",
|
|
Expander: jinjaExpander,
|
|
},
|
|
Members: []*chart.Member{
|
|
{
|
|
Path: "templates/main.jinja",
|
|
Content: content([]string{"resources:"}),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
nil, // Response
|
|
"does not match provided chart",
|
|
)
|
|
}
|
|
|
|
func TestEntrypointNotFound(t *testing.T) {
|
|
testExpansion(
|
|
t,
|
|
&expansion.ServiceRequest{
|
|
ChartInvocation: &common.Resource{
|
|
Name: "test_invocation",
|
|
Type: getTestChartURL(),
|
|
},
|
|
Chart: &chart.Content{
|
|
Chartfile: &chart.Chartfile{
|
|
Name: getTestChartName(t),
|
|
Expander: jinjaExpander,
|
|
},
|
|
Members: []*chart.Member{},
|
|
},
|
|
},
|
|
nil, // Response
|
|
"The entrypoint in the chart.yaml cannot be found",
|
|
)
|
|
}
|
|
|
|
func TestMalformedResource(t *testing.T) {
|
|
testExpansion(
|
|
t,
|
|
&expansion.ServiceRequest{
|
|
ChartInvocation: &common.Resource{
|
|
Name: "test_invocation",
|
|
Type: getTestChartURL(),
|
|
},
|
|
Chart: &chart.Content{
|
|
Chartfile: &chart.Chartfile{
|
|
Name: getTestChartName(t),
|
|
Expander: jinjaExpander,
|
|
},
|
|
Members: []*chart.Member{
|
|
{
|
|
Path: "templates/main.jinja",
|
|
Content: content([]string{
|
|
"resources:",
|
|
"fail",
|
|
}),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
nil, // Response
|
|
"could not found expected ':'", // [sic]
|
|
)
|
|
}
|
|
|
|
func TestResourceNoName(t *testing.T) {
|
|
testExpansion(
|
|
t,
|
|
&expansion.ServiceRequest{
|
|
ChartInvocation: &common.Resource{
|
|
Name: "test_invocation",
|
|
Type: getTestChartURL(),
|
|
},
|
|
Chart: &chart.Content{
|
|
Chartfile: &chart.Chartfile{
|
|
Name: getTestChartName(t),
|
|
Expander: jinjaExpander,
|
|
},
|
|
Members: []*chart.Member{
|
|
{
|
|
Path: "templates/main.jinja",
|
|
Content: content([]string{
|
|
"resources:",
|
|
"- type: bar",
|
|
}),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
nil, // Response.
|
|
"Resource does not have a name",
|
|
)
|
|
}
|
|
|
|
func TestResourceNoType(t *testing.T) {
|
|
testExpansion(
|
|
t,
|
|
&expansion.ServiceRequest{
|
|
ChartInvocation: &common.Resource{
|
|
Name: "test_invocation",
|
|
Type: getTestChartURL(),
|
|
},
|
|
Chart: &chart.Content{
|
|
Chartfile: &chart.Chartfile{
|
|
Name: getTestChartName(t),
|
|
Expander: jinjaExpander,
|
|
},
|
|
Members: []*chart.Member{
|
|
{
|
|
Path: "templates/main.jinja",
|
|
Content: content([]string{
|
|
"resources:",
|
|
"- name: foo",
|
|
}),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
nil, // Response.
|
|
"Resource does not have type defined",
|
|
)
|
|
}
|