326 lines
9.1 KiB
Go
326 lines
9.1 KiB
Go
package app
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import (
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"bufio"
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"bytes"
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"io"
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"os"
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"sync"
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"testing"
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"github.com/google/go-cmp/cmp"
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"github.com/stretchr/testify/assert"
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"github.com/variantdev/vals"
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ffs "github.com/helmfile/helmfile/pkg/filesystem"
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"github.com/helmfile/helmfile/pkg/helmexec"
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"github.com/helmfile/helmfile/pkg/testhelper"
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"github.com/helmfile/helmfile/pkg/testutil"
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)
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func testListWithEnvironment(t *testing.T, cfg configImpl) {
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type testcase struct {
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environment string
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ns string
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error string
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selectors []string
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expected string
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}
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check := func(t *testing.T, tc testcase, cfg configImpl) {
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t.Helper()
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bs := &bytes.Buffer{}
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func() {
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t.Helper()
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logReader, logWriter := io.Pipe()
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logFlushed := &sync.WaitGroup{}
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// Ensure all the log is consumed into `bs` by calling `logWriter.Close()` followed by `logFlushed.Wait()`
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logFlushed.Add(1)
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go func() {
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scanner := bufio.NewScanner(logReader)
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for scanner.Scan() {
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bs.Write(scanner.Bytes())
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bs.WriteString("\n")
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}
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logFlushed.Done()
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}()
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defer func() {
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// This is here to avoid data-trace on bytes buffer `bs` to capture logs
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if err := logWriter.Close(); err != nil {
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panic(err)
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}
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logFlushed.Wait()
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}()
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logger := helmexec.NewLogger(logWriter, "debug")
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valsRuntime, err := vals.New(vals.Options{CacheSize: 32})
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if err != nil {
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t.Errorf("unexpected error creating vals runtime: %v", err)
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}
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files := map[string]string{
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"/path/to/helmfile.d/helmfile_1.yaml": `
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environments:
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development: {}
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shared: {}
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releases:
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- name: logging
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chart: incubator/raw
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namespace: kube-system
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- name: kubernetes-external-secrets
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chart: incubator/raw
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namespace: kube-system
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needs:
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- kube-system/logging
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- name: external-secrets
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chart: incubator/raw
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namespace: default
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labels:
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app: test
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needs:
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- kube-system/kubernetes-external-secrets
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- name: my-release
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chart: incubator/raw
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namespace: default
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labels:
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app: test
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needs:
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- default/external-secrets
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# Disabled releases are treated as missing
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- name: disabled
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chart: incubator/raw
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namespace: kube-system
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installed: false
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- name: test2
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chart: incubator/raw
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needs:
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- kube-system/disabled
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- name: test3
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chart: incubator/raw
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needs:
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- test2
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`,
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"/path/to/helmfile.d/helmfile_2.yaml": `
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environments:
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test: {}
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shared: {}
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repositories:
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- name: bitnami
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url: https://charts.bitnami.com/bitnami
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releases:
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- name: cache
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namespace: my-app
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chart: bitnami/redis
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version: 17.0.7
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labels:
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app: test
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- name: database
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namespace: my-app
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chart: bitnami/postgres
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version: 11.6.22
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`,
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"/path/to/helmfile.d/helmfile_3.yaml": `
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releases:
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- name: global
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chart: incubator/raw
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namespace: kube-system
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`,
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}
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app := appWithFs(&App{
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OverrideHelmBinary: DefaultHelmBinary,
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fs: ffs.DefaultFileSystem(),
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OverrideKubeContext: "default",
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Env: tc.environment,
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Logger: logger,
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valsRuntime: valsRuntime,
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}, files)
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expectNoCallsToHelm(app)
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if tc.ns != "" {
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app.Namespace = tc.ns
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}
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if tc.selectors != nil {
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app.Selectors = tc.selectors
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}
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var listErr error
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out := testutil.CaptureStdout(func() {
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listErr = app.ListReleases(cfg)
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})
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var gotErr string
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if listErr != nil {
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gotErr = listErr.Error()
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}
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if d := cmp.Diff(tc.error, gotErr); d != "" {
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t.Fatalf("unexpected error: want (-), got (+): %s", d)
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}
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assert.Equal(t, tc.expected, out)
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}()
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testhelper.RequireLog(t, "app_list_test", bs)
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}
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t.Run("default environment includes all releases", func(t *testing.T) {
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check(t, testcase{
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environment: "default",
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expected: `NAME NAMESPACE ENABLED INSTALLED LABELS CHART VERSION
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logging kube-system true true incubator/raw
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kubernetes-external-secrets kube-system true true incubator/raw
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external-secrets default true true app:test incubator/raw
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my-release default true true app:test incubator/raw
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disabled kube-system true false incubator/raw
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test2 true true incubator/raw
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test3 true true incubator/raw
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cache my-app true true app:test bitnami/redis 17.0.7
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database my-app true true bitnami/postgres 11.6.22
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global kube-system true true incubator/raw
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`,
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}, cfg)
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})
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t.Run("fail on unknown environment", func(t *testing.T) {
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check(t, testcase{
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environment: "staging",
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error: `err: no releases found that matches specified selector() and environment(staging), in any helmfile`,
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}, cfg)
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})
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t.Run("list releases matching selector and environment", func(t *testing.T) {
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check(t, testcase{
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environment: "development",
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selectors: []string{"app=test"},
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expected: `NAME NAMESPACE ENABLED INSTALLED LABELS CHART VERSION
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external-secrets default true true app:test,chart:raw,name:external-secrets,namespace:default incubator/raw
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my-release default true true app:test,chart:raw,name:my-release,namespace:default incubator/raw
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`,
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}, cfg)
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})
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t.Run("filters releases for environment used in one file only", func(t *testing.T) {
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check(t, testcase{
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environment: "test",
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expected: `NAME NAMESPACE ENABLED INSTALLED LABELS CHART VERSION
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cache my-app true true app:test bitnami/redis 17.0.7
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database my-app true true bitnami/postgres 11.6.22
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`,
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}, cfg)
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})
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t.Run("filters releases for environment used in multiple files", func(t *testing.T) {
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check(t, testcase{
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environment: "shared",
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// 'global' release has no environments, so is still excluded
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expected: `NAME NAMESPACE ENABLED INSTALLED LABELS CHART VERSION
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logging kube-system true true incubator/raw
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kubernetes-external-secrets kube-system true true incubator/raw
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external-secrets default true true app:test incubator/raw
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my-release default true true app:test incubator/raw
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disabled kube-system true false incubator/raw
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test2 true true incubator/raw
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test3 true true incubator/raw
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cache my-app true true app:test bitnami/redis 17.0.7
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database my-app true true bitnami/postgres 11.6.22
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`,
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}, cfg)
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})
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}
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func TestListWithEnvironment(t *testing.T) {
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t.Run("with skipCharts=false", func(t *testing.T) {
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testListWithEnvironment(t, configImpl{skipCharts: false})
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})
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t.Run("with skipCharts=true", func(t *testing.T) {
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testListWithEnvironment(t, configImpl{skipCharts: true})
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})
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}
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func testListWithJSONOutput(t *testing.T, cfg configImpl) {
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cfg.output = "json"
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files := map[string]string{
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"/path/to/helmfile.d/first.yaml": `
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environments:
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default:
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values:
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- myrelease2:
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enabled: false
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releases:
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- name: myrelease1
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chart: mychart1
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installed: no
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labels:
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id: myrelease1
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- name: myrelease2
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chart: mychart1
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condition: myrelease2.enabled
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`,
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"/path/to/helmfile.d/second.yaml": `
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releases:
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- name: myrelease3
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chart: mychart1
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installed: yes
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- name: myrelease4
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chart: mychart1
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labels:
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id: myrelease1
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`,
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}
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stdout := os.Stdout
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defer func() { os.Stdout = stdout }()
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var buffer bytes.Buffer
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logger := helmexec.NewLogger(&buffer, "debug")
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app := appWithFs(&App{
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OverrideHelmBinary: DefaultHelmBinary,
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fs: ffs.DefaultFileSystem(),
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OverrideKubeContext: "default",
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Env: "default",
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Logger: logger,
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Namespace: "testNamespace",
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}, files)
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expectNoCallsToHelm(app)
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out := testutil.CaptureStdout(func() {
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err := app.ListReleases(cfg)
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assert.Nil(t, err)
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})
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expected := `[{"name":"myrelease1","namespace":"testNamespace","enabled":true,"installed":false,"labels":"id:myrelease1","chart":"mychart1","version":""},{"name":"myrelease2","namespace":"testNamespace","enabled":false,"installed":true,"labels":"","chart":"mychart1","version":""},{"name":"myrelease3","namespace":"testNamespace","enabled":true,"installed":true,"labels":"","chart":"mychart1","version":""},{"name":"myrelease4","namespace":"testNamespace","enabled":true,"installed":true,"labels":"id:myrelease1","chart":"mychart1","version":""}]
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`
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assert.Equal(t, expected, out)
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}
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func TestListWithJSONOutput(t *testing.T) {
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t.Run("with skipCharts=false", func(t *testing.T) {
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testListWithJSONOutput(t, configImpl{skipCharts: false})
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})
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t.Run("with skipCharts=true", func(t *testing.T) {
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testListWithJSONOutput(t, configImpl{skipCharts: true})
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})
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}
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