woodpecker-helm3/internal/env/config_test.go

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package env
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import (
"fmt"
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"github.com/stretchr/testify/suite"
"os"
"strings"
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"testing"
)
type ConfigTestSuite struct {
suite.Suite
// These tests need to mutate the environment, so the suite.setenv and .unsetenv functions store the original contents of the
// relevant variable in this map. Its use of *string is so they can distinguish between "not set" and "set to empty string"
envBackup map[string]*string
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}
func TestConfigTestSuite(t *testing.T) {
suite.Run(t, new(ConfigTestSuite))
}
func (suite *ConfigTestSuite) TestNewConfigWithPluginPrefix() {
suite.unsetenv("MODE")
suite.unsetenv("UPDATE_DEPENDENCIES")
suite.unsetenv("DEBUG")
suite.setenv("PLUGIN_MODE", "iambic")
suite.setenv("PLUGIN_UPDATE_DEPENDENCIES", "true")
suite.setenv("PLUGIN_DEBUG", "true")
cfg, err := NewConfig(&strings.Builder{}, &strings.Builder{})
suite.Require().NoError(err)
suite.Equal("iambic", cfg.Command)
suite.True(cfg.UpdateDependencies)
suite.True(cfg.Debug)
}
func (suite *ConfigTestSuite) TestNewConfigWithNoPrefix() {
suite.unsetenv("PLUGIN_MODE")
suite.unsetenv("PLUGIN_UPDATE_DEPENDENCIES")
suite.unsetenv("PLUGIN_DEBUG")
suite.setenv("MODE", "iambic")
suite.setenv("UPDATE_DEPENDENCIES", "true")
suite.setenv("DEBUG", "true")
cfg, err := NewConfig(&strings.Builder{}, &strings.Builder{})
suite.Require().NoError(err)
suite.Equal("iambic", cfg.Command)
suite.True(cfg.UpdateDependencies)
suite.True(cfg.Debug)
}
func (suite *ConfigTestSuite) TestNewConfigWithConflictingVariables() {
suite.setenv("PLUGIN_MODE", "iambic")
suite.setenv("MODE", "haiku") // values from the `environment` block override those from `settings`
cfg, err := NewConfig(&strings.Builder{}, &strings.Builder{})
suite.Require().NoError(err)
suite.Equal("haiku", cfg.Command)
}
func (suite *ConfigTestSuite) TestNewConfigInfersNumbersAreSeconds() {
suite.setenv("PLUGIN_TIMEOUT", "42")
cfg, err := NewConfig(&strings.Builder{}, &strings.Builder{})
suite.Require().NoError(err)
suite.Equal("42s", cfg.Timeout)
}
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func (suite *ConfigTestSuite) TestNewConfigWithAliases() {
for _, varname := range []string{
"MODE",
"ADD_REPOS",
"KUBE_API_SERVER",
"KUBE_SERVICE_ACCOUNT",
"WAIT_FOR_UPGRADE",
"FORCE_UPGRADE",
"KUBE_TOKEN",
"KUBE_CERTIFICATE",
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} {
suite.unsetenv(varname)
suite.unsetenv("PLUGIN_" + varname)
}
suite.setenv("PLUGIN_HELM_COMMAND", "beware the jabberwock")
suite.setenv("PLUGIN_HELM_REPOS", "chortle=http://calloo.callay/frabjous/day")
suite.setenv("PLUGIN_API_SERVER", "http://tumtum.tree")
suite.setenv("PLUGIN_SERVICE_ACCOUNT", "tulgey")
suite.setenv("PLUGIN_WAIT", "true")
suite.setenv("PLUGIN_FORCE", "true")
suite.setenv("PLUGIN_KUBERNETES_TOKEN", "Y29tZSB0byBteSBhcm1z")
suite.setenv("PLUGIN_KUBERNETES_CERTIFICATE", "d2l0aCBpdHMgaGVhZA==")
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cfg, err := NewConfig(&strings.Builder{}, &strings.Builder{})
suite.Require().NoError(err)
suite.Equal("beware the jabberwock", cfg.Command)
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suite.Equal([]string{"chortle=http://calloo.callay/frabjous/day"}, cfg.AddRepos)
suite.Equal("http://tumtum.tree", cfg.APIServer)
suite.Equal("tulgey", cfg.ServiceAccount)
suite.True(cfg.Wait, "Wait should be aliased")
suite.True(cfg.Force, "Force should be aliased")
suite.Equal("Y29tZSB0byBteSBhcm1z", cfg.KubeToken, "KubeToken should be aliased")
suite.Equal("d2l0aCBpdHMgaGVhZA==", cfg.Certificate, "Certificate should be aliased")
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}
func (suite *ConfigTestSuite) TestAliasedSettingWithoutPluginPrefix() {
suite.unsetenv("FORCE_UPGRADE")
suite.unsetenv("PLUGIN_FORCE_UPGRADE")
suite.unsetenv("PLUGIN_FORCE")
suite.setenv("FORCE", "true")
cfg, err := NewConfig(&strings.Builder{}, &strings.Builder{})
suite.Require().NoError(err)
suite.True(cfg.Force)
}
func (suite *ConfigTestSuite) TestNewConfigWithAliasConflicts() {
suite.unsetenv("FORCE_UPGRADE")
suite.setenv("PLUGIN_FORCE", "true")
suite.setenv("PLUGIN_FORCE_UPGRADE", "false") // should override even when set to the zero value
cfg, err := NewConfig(&strings.Builder{}, &strings.Builder{})
suite.NoError(err)
suite.False(cfg.Force, "official names should override alias names")
}
func (suite *ConfigTestSuite) TestNewConfigSetsWriters() {
stdout := &strings.Builder{}
stderr := &strings.Builder{}
cfg, err := NewConfig(stdout, stderr)
suite.Require().NoError(err)
suite.Equal(stdout, cfg.Stdout)
suite.Equal(stderr, cfg.Stderr)
}
func (suite *ConfigTestSuite) TestDeprecatedSettingWarnings() {
for _, varname := range deprecatedVars {
suite.setenv(varname, "deprecoat") // environment-block entries should cause warnings
}
suite.unsetenv("PURGE")
suite.setenv("PLUGIN_PURGE", "true") // settings-block entries should cause warnings
suite.setenv("UPGRADE", "") // entries should cause warnings even when set to empty string
stderr := &strings.Builder{}
_, err := NewConfig(&strings.Builder{}, stderr)
suite.NoError(err)
for _, varname := range deprecatedVars {
suite.Contains(stderr.String(), fmt.Sprintf("Warning: ignoring deprecated '%s' setting\n", strings.ToLower(varname)))
}
}
func (suite *ConfigTestSuite) TestLogDebug() {
suite.setenv("DEBUG", "true")
suite.setenv("MODE", "upgrade")
stderr := strings.Builder{}
stdout := strings.Builder{}
_, err := NewConfig(&stdout, &stderr)
suite.Require().NoError(err)
suite.Equal("", stdout.String())
suite.Regexp(`^Generated config: \{Command:upgrade.*\}`, stderr.String())
}
func (suite *ConfigTestSuite) TestLogDebugCensorsKubeToken() {
stderr := &strings.Builder{}
kubeToken := "I'm shy! Don't put me in your build logs!"
cfg := Config{
Debug: true,
KubeToken: kubeToken,
Stderr: stderr,
}
cfg.logDebug()
suite.Contains(stderr.String(), "KubeToken:(redacted)")
suite.Equal(kubeToken, cfg.KubeToken) // The actual config value should be left unchanged
}
func (suite *ConfigTestSuite) TestNewConfigWithValuesSecrets() {
suite.unsetenv("VALUES")
suite.unsetenv("STRING_VALUES")
suite.unsetenv("SECRET_WATER")
suite.setenv("SECRET_FIRE", "Eru_Ilúvatar")
suite.setenv("SECRET_RINGS", "1")
suite.setenv("PLUGIN_VALUES", "fire=$SECRET_FIRE,water=${SECRET_WATER}")
suite.setenv("PLUGIN_STRING_VALUES", "rings=${SECRET_RINGS}")
cfg, err := NewConfig(&strings.Builder{}, &strings.Builder{})
suite.Require().NoError(err)
suite.Equal("fire=Eru_Ilúvatar,water=", cfg.Values)
suite.Equal("rings=1", cfg.StringValues)
}
func (suite *ConfigTestSuite) TestValuesSecretsWithDebugLogging() {
suite.unsetenv("VALUES")
suite.unsetenv("SECRET_WATER")
suite.setenv("SECRET_FIRE", "Eru_Ilúvatar")
suite.setenv("PLUGIN_DEBUG", "true")
suite.setenv("PLUGIN_STRING_VALUES", "fire=$SECRET_FIRE")
suite.setenv("PLUGIN_VALUES", "fire=$SECRET_FIRE,water=$SECRET_WATER")
stderr := strings.Builder{}
_, err := NewConfig(&strings.Builder{}, &stderr)
suite.Require().NoError(err)
suite.Contains(stderr.String(), "Values:fire=Eru_Ilúvatar,water=")
suite.Contains(stderr.String(), `$SECRET_WATER not present in environment, replaced with ""`)
}
func (suite *ConfigTestSuite) setenv(key, val string) {
orig, ok := os.LookupEnv(key)
if ok {
suite.envBackup[key] = &orig
} else {
suite.envBackup[key] = nil
}
os.Setenv(key, val)
}
func (suite *ConfigTestSuite) unsetenv(key string) {
orig, ok := os.LookupEnv(key)
if ok {
suite.envBackup[key] = &orig
} else {
suite.envBackup[key] = nil
}
os.Unsetenv(key)
}
func (suite *ConfigTestSuite) BeforeTest(_, _ string) {
suite.envBackup = make(map[string]*string)
}
func (suite *ConfigTestSuite) AfterTest(_, _ string) {
for key, val := range suite.envBackup {
if val == nil {
os.Unsetenv(key)
} else {
os.Setenv(key, *val)
}
}
}