helmfile/app_test.go

475 lines
12 KiB
Go

package main
import (
"fmt"
"github.com/roboll/helmfile/helmexec"
"github.com/roboll/helmfile/state"
"io/ioutil"
"os"
"path/filepath"
"reflect"
"testing"
)
// See https://github.com/roboll/helmfile/issues/193
func TestVisitDesiredStatesWithReleasesFiltered(t *testing.T) {
absPaths := map[string]string{
".": "/path/to",
"/path/to/helmfile.d": "/path/to/helmfile.d",
}
dirs := map[string]bool{
"helmfile.d": true,
}
files := map[string]string{
"helmfile.yaml": `
helmfiles:
- helmfile.d/a*.yaml
- helmfile.d/b*.yaml
`,
"/path/to/helmfile.d/a1.yaml": `
releases:
- name: zipkin
chart: stable/zipkin
`,
"/path/to/helmfile.d/a2.yaml": `
releases:
- name: prometheus
chart: stable/prometheus
`,
"/path/to/helmfile.d/b.yaml": `
releases:
- name: grafana
chart: stable/grafana
`,
}
globMatches := map[string][]string{
"/path/to/helmfile.d/a*.yaml": []string{"/path/to/helmfile.d/a1.yaml", "/path/to/helmfile.d/a2.yaml"},
"/path/to/helmfile.d/b*.yaml": []string{"/path/to/helmfile.d/b.yaml"},
}
fileExistsAt := func(path string) bool {
_, ok := files[path]
return ok
}
directoryExistsAt := func(path string) bool {
_, ok := dirs[path]
return ok
}
readFile := func(filename string) ([]byte, error) {
str, ok := files[filename]
if !ok {
return []byte(nil), fmt.Errorf("no file found: %s", filename)
}
return []byte(str), nil
}
glob := func(pattern string) ([]string, error) {
matches, ok := globMatches[pattern]
if !ok {
return []string(nil), fmt.Errorf("no file matched: %s", pattern)
}
return matches, nil
}
abs := func(path string) (string, error) {
a, ok := absPaths[path]
if !ok {
return "", fmt.Errorf("abs: unexpected path: %s", path)
}
return a, nil
}
noop := func(st *state.HelmState, helm helmexec.Interface) []error {
return []error{}
}
testcases := []struct {
name string
expectErr bool
}{
{name: "prometheus", expectErr: false},
{name: "zipkin", expectErr: false},
{name: "grafana", expectErr: false},
{name: "elasticsearch", expectErr: true},
}
for _, testcase := range testcases {
app := &app{
readFile: readFile,
glob: glob,
abs: abs,
fileExistsAt: fileExistsAt,
directoryExistsAt: directoryExistsAt,
kubeContext: "default",
logger: helmexec.NewLogger(os.Stderr, "debug"),
selectors: []string{fmt.Sprintf("name=%s", testcase.name)},
namespace: "",
env: "default",
}
err := app.VisitDesiredStatesWithReleasesFiltered(
"helmfile.yaml", noop,
)
if testcase.expectErr && err == nil {
t.Errorf("error expected but not happened for name=%s", testcase.name)
} else if !testcase.expectErr && err != nil {
t.Errorf("unexpected error for name=%s: %v", testcase.name, err)
}
}
}
// See https://github.com/roboll/helmfile/issues/320
func TestVisitDesiredStatesWithReleasesFiltered_UndefinedEnv(t *testing.T) {
absPaths := map[string]string{
".": "/path/to",
"/path/to/helmfile.d": "/path/to/helmfile.d",
}
dirs := map[string]bool{
"helmfile.d": true,
}
files := map[string]string{
"helmfile.yaml": `
environments:
prod:
helmfiles:
- helmfile.d/a*.yaml
`,
"/path/to/helmfile.d/a1.yaml": `
environments:
prod:
releases:
- name: zipkin
chart: stable/zipkin
`,
}
globMatches := map[string][]string{
"/path/to/helmfile.d/a*.yaml": []string{"/path/to/helmfile.d/a1.yaml"},
}
fileExistsAt := func(path string) bool {
_, ok := files[path]
return ok
}
directoryExistsAt := func(path string) bool {
_, ok := dirs[path]
return ok
}
readFile := func(filename string) ([]byte, error) {
str, ok := files[filename]
if !ok {
return []byte(nil), fmt.Errorf("no file found: %s", filename)
}
return []byte(str), nil
}
glob := func(pattern string) ([]string, error) {
matches, ok := globMatches[pattern]
if !ok {
return []string(nil), fmt.Errorf("no file matched: %s", pattern)
}
return matches, nil
}
abs := func(path string) (string, error) {
a, ok := absPaths[path]
if !ok {
return "", fmt.Errorf("abs: unexpected path: %s", path)
}
return a, nil
}
noop := func(st *state.HelmState, helm helmexec.Interface) []error {
return []error{}
}
testcases := []struct {
name string
expectErr bool
}{
{name: "undefined_env", expectErr: true},
{name: "default", expectErr: false},
{name: "prod", expectErr: false},
}
for _, testcase := range testcases {
app := &app{
readFile: readFile,
glob: glob,
abs: abs,
fileExistsAt: fileExistsAt,
directoryExistsAt: directoryExistsAt,
kubeContext: "default",
logger: helmexec.NewLogger(os.Stderr, "debug"),
namespace: "",
selectors: []string{},
env: testcase.name,
}
err := app.VisitDesiredStatesWithReleasesFiltered(
"helmfile.yaml", noop,
)
if testcase.expectErr && err == nil {
t.Errorf("error expected but not happened for environment=%s", testcase.name)
} else if !testcase.expectErr && err != nil {
t.Errorf("unexpected error for environment=%s: %v", testcase.name, err)
}
}
}
// See https://github.com/roboll/helmfile/issues/322
func TestVisitDesiredStatesWithReleasesFiltered_Selectors(t *testing.T) {
absPaths := map[string]string{
".": "/path/to",
"/path/to/helmfile.d": "/path/to/helmfile.d",
}
dirs := map[string]bool{
"helmfile.d": true,
}
files := map[string]string{
"helmfile.yaml": `
helmfiles:
- helmfile.d/a*.yaml
- helmfile.d/b*.yaml
`,
"/path/to/helmfile.d/a1.yaml": `
releases:
- name: zipkin
chart: stable/zipkin
`,
"/path/to/helmfile.d/a2.yaml": `
releases:
- name: prometheus
chart: stable/prometheus
`,
"/path/to/helmfile.d/b.yaml": `
releases:
- name: grafana
chart: stable/grafana
- name: foo
chart: charts/foo
labels:
duplicated: yes
- name: foo
chart: charts/foo
labels:
duplicated: yes
`,
}
globMatches := map[string][]string{
"/path/to/helmfile.d/a*.yaml": []string{"/path/to/helmfile.d/a1.yaml", "/path/to/helmfile.d/a2.yaml"},
"/path/to/helmfile.d/b*.yaml": []string{"/path/to/helmfile.d/b.yaml"},
}
fileExistsAt := func(path string) bool {
_, ok := files[path]
return ok
}
directoryExistsAt := func(path string) bool {
_, ok := dirs[path]
return ok
}
readFile := func(filename string) ([]byte, error) {
str, ok := files[filename]
if !ok {
return []byte(nil), fmt.Errorf("no file found: %s", filename)
}
return []byte(str), nil
}
glob := func(pattern string) ([]string, error) {
matches, ok := globMatches[pattern]
if !ok {
return []string(nil), fmt.Errorf("no file matched: %s", pattern)
}
return matches, nil
}
abs := func(path string) (string, error) {
a, ok := absPaths[path]
if !ok {
return "", fmt.Errorf("abs: unexpected path: %s", path)
}
return a, nil
}
testcases := []struct {
label string
expectedCount int
expectErr bool
errMsg string
}{
{label: "name=prometheus", expectedCount: 1, expectErr: false},
{label: "name=", expectedCount: 0, expectErr: true, errMsg: "failed processing /path/to/helmfile.d/a1.yaml: Malformed label: name=. Expected label in form k=v or k!=v"},
{label: "name!=", expectedCount: 0, expectErr: true, errMsg: "failed processing /path/to/helmfile.d/a1.yaml: Malformed label: name!=. Expected label in form k=v or k!=v"},
{label: "name", expectedCount: 0, expectErr: true, errMsg: "failed processing /path/to/helmfile.d/a1.yaml: Malformed label: name. Expected label in form k=v or k!=v"},
// See https://github.com/roboll/helmfile/issues/193
{label: "duplicated=yes", expectedCount: 0, expectErr: true, errMsg: "failed processing /path/to/helmfile.d/b.yaml: duplicate release \"foo\" found: there were 2 releases named \"foo\" matching specified selector"},
}
for _, testcase := range testcases {
actual := []string{}
collectReleases := func(st *state.HelmState, helm helmexec.Interface) []error {
for _, r := range st.Releases {
actual = append(actual, r.Name)
}
return []error{}
}
app := &app{
readFile: readFile,
glob: glob,
abs: abs,
fileExistsAt: fileExistsAt,
directoryExistsAt: directoryExistsAt,
kubeContext: "default",
logger: helmexec.NewLogger(os.Stderr, "debug"),
namespace: "",
selectors: []string{testcase.label},
env: "default",
}
err := app.VisitDesiredStatesWithReleasesFiltered(
"helmfile.yaml", collectReleases,
)
if testcase.expectErr {
if err == nil {
t.Errorf("error expected but not happened for selector %s", testcase.label)
} else if err.Error() != testcase.errMsg {
t.Errorf("unexpected error message: expected=\"%s\", actual=\"%s\"", testcase.errMsg, err.Error())
}
} else if !testcase.expectErr && err != nil {
t.Errorf("unexpected error for selector %s: %v", testcase.label, err)
}
if len(actual) != testcase.expectedCount {
t.Errorf("unexpected release count for selector %s: expected=%d, actual=%d", testcase.label, testcase.expectedCount, len(actual))
}
}
}
// See https://github.com/roboll/helmfile/issues/312
func TestVisitDesiredStatesWithReleasesFiltered_ReverseOrder(t *testing.T) {
absPaths := map[string]string{
".": "/path/to",
"/path/to/helmfile.d": "/path/to/helmfile.d",
}
dirs := map[string]bool{
"helmfile.d": true,
}
files := map[string]string{
"helmfile.yaml": `
helmfiles:
- helmfile.d/a*.yaml
- helmfile.d/b*.yaml
`,
"/path/to/helmfile.d/a1.yaml": `
releases:
- name: zipkin
chart: stable/zipkin
`,
"/path/to/helmfile.d/a2.yaml": `
releases:
- name: prometheus
chart: stable/prometheus
- name: elasticsearch
chart: stable/elasticsearch
`,
"/path/to/helmfile.d/b.yaml": `
releases:
- name: grafana
chart: stable/grafana
`,
}
globMatches := map[string][]string{
"/path/to/helmfile.d/a*.yaml": []string{"/path/to/helmfile.d/a1.yaml", "/path/to/helmfile.d/a2.yaml"},
"/path/to/helmfile.d/b*.yaml": []string{"/path/to/helmfile.d/b.yaml"},
}
fileExistsAt := func(path string) bool {
_, ok := files[path]
return ok
}
directoryExistsAt := func(path string) bool {
_, ok := dirs[path]
return ok
}
readFile := func(filename string) ([]byte, error) {
str, ok := files[filename]
if !ok {
return []byte(nil), fmt.Errorf("no file found: %s", filename)
}
return []byte(str), nil
}
glob := func(pattern string) ([]string, error) {
matches, ok := globMatches[pattern]
if !ok {
return []string(nil), fmt.Errorf("no file matched: %s", pattern)
}
return matches, nil
}
abs := func(path string) (string, error) {
a, ok := absPaths[path]
if !ok {
return "", fmt.Errorf("abs: unexpected path: %s", path)
}
return a, nil
}
expected := []string{"grafana", "elasticsearch", "prometheus", "zipkin"}
testcases := []struct {
reverse bool
expected []string
}{
{reverse: false, expected: []string{"zipkin", "prometheus", "elasticsearch", "grafana"}},
{reverse: true, expected: []string{"grafana", "elasticsearch", "prometheus", "zipkin"}},
}
for _, testcase := range testcases {
actual := []string{}
collectReleases := func(st *state.HelmState, helm helmexec.Interface) []error {
for _, r := range st.Releases {
actual = append(actual, r.Name)
}
return []error{}
}
app := &app{
readFile: readFile,
glob: glob,
abs: abs,
fileExistsAt: fileExistsAt,
directoryExistsAt: directoryExistsAt,
kubeContext: "default",
logger: helmexec.NewLogger(os.Stderr, "debug"),
reverse: testcase.reverse,
namespace: "",
selectors: []string{},
env: "default",
}
err := app.VisitDesiredStatesWithReleasesFiltered(
"helmfile.yaml", collectReleases,
)
if err != nil {
t.Errorf("unexpected error: %v", err)
}
if !reflect.DeepEqual(testcase.expected, actual) {
t.Errorf("releases did not match: expected=%v actual=%v", expected, actual)
}
}
}
func TestLoadDesiredStateFromYaml_DuplicateReleaseName(t *testing.T) {
yamlFile := "example/path/to/yaml/file"
yamlContent := []byte(`releases:
- name: myrelease1
chart: mychart1
labels:
stage: pre
foo: bar
- name: myrelease1
chart: mychart2
labels:
stage: post
`)
app := &app{
readFile: ioutil.ReadFile,
glob: filepath.Glob,
abs: filepath.Abs,
kubeContext: "default",
logger: logger,
}
_, err := app.loadDesiredStateFromYaml(yamlContent, yamlFile, "default", "default")
if err != nil {
t.Error("unexpected error")
}
}