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114 lines
2.6 KiB
114 lines
2.6 KiB
/*
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Copyright The Helm Authors.
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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 cli
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import (
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"os"
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"strings"
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"testing"
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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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envvars map[string]string
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// expected values
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ns, kcontext string
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debug bool
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maxhistory int
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}{
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{
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name: "defaults",
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ns: "default",
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maxhistory: defaultMaxHistory,
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},
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{
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name: "with flags set",
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args: "--debug --namespace=myns",
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ns: "myns",
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debug: true,
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maxhistory: defaultMaxHistory,
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},
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{
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name: "with envvars set",
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envvars: map[string]string{"HELM_DEBUG": "1", "HELM_NAMESPACE": "yourns", "HELM_MAX_HISTORY": "5"},
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ns: "yourns",
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maxhistory: 5,
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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: "--debug --namespace=myns",
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envvars: map[string]string{"HELM_DEBUG": "1", "HELM_NAMESPACE": "yourns"},
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ns: "myns",
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debug: true,
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maxhistory: defaultMaxHistory,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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defer resetEnv()()
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for k, v := range tt.envvars {
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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 := New()
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settings.AddFlags(flags)
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flags.Parse(strings.Split(tt.args, " "))
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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.Namespace() != tt.ns {
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t.Errorf("expected namespace %q, got %q", tt.ns, settings.Namespace())
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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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if settings.MaxHistory != tt.maxhistory {
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t.Errorf("expected maxHistory %d, got %d", tt.maxhistory, settings.MaxHistory)
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}
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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 New().EnvVars() {
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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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