mirror of https://github.com/helm/helm
Merge pull request #2690 from adamreese/fix/helm-home-plugins-again-again
fix(helm): fix flag parsing once and for allpull/2691/head
commit
3cf8f2c8b3
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/*
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Copyright 2016 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 environment
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import (
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"os"
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"strings"
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"testing"
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"k8s.io/helm/pkg/helm/helmpath"
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"github.com/spf13/pflag"
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)
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func TestEnvSettings(t *testing.T) {
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tests := []struct {
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name string
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// input
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args []string
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envars map[string]string
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// expected values
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home, host, ns, kcontext, plugins string
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debug bool
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}{
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{
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name: "defaults",
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args: []string{},
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home: DefaultHelmHome,
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plugins: helmpath.Home(DefaultHelmHome).Plugins(),
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ns: "kube-system",
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},
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{
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name: "with flags set",
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args: []string{"--home", "/foo", "--host=here", "--debug", "--tiller-namespace=myns"},
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home: "/foo",
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plugins: helmpath.Home("/foo").Plugins(),
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host: "here",
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ns: "myns",
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debug: true,
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},
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{
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name: "with envvars set",
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args: []string{},
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envars: map[string]string{"HELM_HOME": "/bar", "HELM_HOST": "there", "HELM_DEBUG": "1", "TILLER_NAMESPACE": "yourns"},
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home: "/bar",
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plugins: helmpath.Home("/bar").Plugins(),
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host: "there",
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ns: "yourns",
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debug: true,
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},
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{
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name: "with flags and envvars set",
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args: []string{"--home", "/foo", "--host=here", "--debug", "--tiller-namespace=myns"},
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envars: map[string]string{"HELM_HOME": "/bar", "HELM_HOST": "there", "HELM_DEBUG": "1", "TILLER_NAMESPACE": "yourns", "HELM_PLUGIN": "glade"},
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home: "/foo",
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plugins: "glade",
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host: "here",
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ns: "myns",
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debug: true,
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},
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}
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cleanup := resetEnv()
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defer cleanup()
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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for k, v := range tt.envars {
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os.Setenv(k, v)
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}
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flags := pflag.NewFlagSet("testing", pflag.ContinueOnError)
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settings := &EnvSettings{}
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settings.AddFlags(flags)
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flags.Parse(tt.args)
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settings.Init(flags)
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if settings.Home != helmpath.Home(tt.home) {
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t.Errorf("expected home %q, got %q", tt.home, settings.Home)
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}
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if settings.PluginDirs() != tt.plugins {
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t.Errorf("expected plugins %q, got %q", tt.plugins, settings.PluginDirs())
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}
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if settings.TillerHost != tt.host {
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t.Errorf("expected host %q, got %q", tt.host, settings.TillerHost)
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}
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if settings.Debug != tt.debug {
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t.Errorf("expected debug %t, got %t", tt.debug, settings.Debug)
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}
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if settings.TillerNamespace != tt.ns {
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t.Errorf("expected tiller-namespace %q, got %q", tt.ns, settings.TillerNamespace)
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}
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if settings.KubeContext != tt.kcontext {
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t.Errorf("expected kube-context %q, got %q", tt.kcontext, settings.KubeContext)
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}
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cleanup()
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})
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}
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}
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func resetEnv() func() {
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origEnv := os.Environ()
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// ensure any local envvars do not hose us
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for _, e := range envMap {
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os.Unsetenv(e)
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}
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return func() {
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for _, pair := range origEnv {
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kv := strings.SplitN(pair, "=", 2)
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os.Setenv(kv[0], kv[1])
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}
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}
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}
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