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279 lines
7.8 KiB
279 lines
7.8 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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"reflect"
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"strings"
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"testing"
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"github.com/spf13/pflag"
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"helm.sh/helm/v3/internal/version"
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)
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func TestSetNamespace(t *testing.T) {
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settings := New()
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if settings.namespace != "" {
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t.Errorf("Expected empty namespace, got %s", settings.namespace)
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}
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settings.SetNamespace("testns")
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if settings.namespace != "testns" {
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t.Errorf("Expected namespace testns, got %s", settings.namespace)
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}
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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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kubeAsUser string
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kubeAsGroups []string
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kubeCaFile string
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kubeInsecure bool
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kubeTLSServer string
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burstLimit int
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qps float32
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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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burstLimit: defaultBurstLimit,
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qps: defaultQPS,
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},
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{
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name: "with flags set",
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args: "--debug --namespace=myns --kube-as-user=poro --kube-as-group=admins --kube-as-group=teatime --kube-as-group=snackeaters --kube-ca-file=/tmp/ca.crt --burst-limit 100 --qps 50.12 --kube-insecure-skip-tls-verify=true --kube-tls-server-name=example.org",
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ns: "myns",
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debug: true,
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maxhistory: defaultMaxHistory,
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burstLimit: 100,
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qps: 50.12,
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kubeAsUser: "poro",
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kubeAsGroups: []string{"admins", "teatime", "snackeaters"},
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kubeCaFile: "/tmp/ca.crt",
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kubeTLSServer: "example.org",
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kubeInsecure: true,
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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_KUBEASUSER": "pikachu", "HELM_KUBEASGROUPS": ",,,operators,snackeaters,partyanimals", "HELM_MAX_HISTORY": "5", "HELM_KUBECAFILE": "/tmp/ca.crt", "HELM_BURST_LIMIT": "150", "HELM_KUBEINSECURE_SKIP_TLS_VERIFY": "true", "HELM_KUBETLS_SERVER_NAME": "example.org", "HELM_QPS": "60.34"},
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ns: "yourns",
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maxhistory: 5,
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burstLimit: 150,
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qps: 60.34,
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debug: true,
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kubeAsUser: "pikachu",
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kubeAsGroups: []string{"operators", "snackeaters", "partyanimals"},
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kubeCaFile: "/tmp/ca.crt",
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kubeTLSServer: "example.org",
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kubeInsecure: 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 --kube-as-user=poro --kube-as-group=admins --kube-as-group=teatime --kube-as-group=snackeaters --kube-ca-file=/my/ca.crt --burst-limit 175 --qps 70 --kube-insecure-skip-tls-verify=true --kube-tls-server-name=example.org",
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envvars: map[string]string{"HELM_DEBUG": "1", "HELM_NAMESPACE": "yourns", "HELM_KUBEASUSER": "pikachu", "HELM_KUBEASGROUPS": ",,,operators,snackeaters,partyanimals", "HELM_MAX_HISTORY": "5", "HELM_KUBECAFILE": "/tmp/ca.crt", "HELM_BURST_LIMIT": "200", "HELM_KUBEINSECURE_SKIP_TLS_VERIFY": "true", "HELM_KUBETLS_SERVER_NAME": "example.org", "HELM_QPS": "40"},
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ns: "myns",
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debug: true,
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maxhistory: 5,
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burstLimit: 175,
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qps: 70,
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kubeAsUser: "poro",
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kubeAsGroups: []string{"admins", "teatime", "snackeaters"},
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kubeCaFile: "/my/ca.crt",
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kubeTLSServer: "example.org",
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kubeInsecure: true,
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},
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{
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name: "invalid kubeconfig",
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ns: "testns",
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args: "--namespace=testns --kubeconfig=/path/to/fake/file",
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maxhistory: defaultMaxHistory,
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burstLimit: defaultBurstLimit,
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qps: defaultQPS,
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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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if tt.kubeAsUser != settings.KubeAsUser {
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t.Errorf("expected kAsUser %q, got %q", tt.kubeAsUser, settings.KubeAsUser)
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}
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if !reflect.DeepEqual(tt.kubeAsGroups, settings.KubeAsGroups) {
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t.Errorf("expected kAsGroups %+v, got %+v", len(tt.kubeAsGroups), len(settings.KubeAsGroups))
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}
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if tt.kubeCaFile != settings.KubeCaFile {
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t.Errorf("expected kCaFile %q, got %q", tt.kubeCaFile, settings.KubeCaFile)
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}
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if tt.burstLimit != settings.BurstLimit {
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t.Errorf("expected BurstLimit %d, got %d", tt.burstLimit, settings.BurstLimit)
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}
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if tt.kubeInsecure != settings.KubeInsecureSkipTLSVerify {
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t.Errorf("expected kubeInsecure %t, got %t", tt.kubeInsecure, settings.KubeInsecureSkipTLSVerify)
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}
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if tt.kubeTLSServer != settings.KubeTLSServerName {
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t.Errorf("expected kubeTLSServer %q, got %q", tt.kubeTLSServer, settings.KubeTLSServerName)
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}
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})
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}
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}
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func TestEnvOrBool(t *testing.T) {
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const envName = "TEST_ENV_OR_BOOL"
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tests := []struct {
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name string
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env string
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val string
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def bool
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expected bool
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}{
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{
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name: "unset with default false",
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def: false,
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expected: false,
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},
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{
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name: "unset with default true",
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def: true,
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expected: true,
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},
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{
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name: "blank env with default false",
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env: envName,
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def: false,
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expected: false,
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},
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{
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name: "blank env with default true",
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env: envName,
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def: true,
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expected: true,
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},
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{
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name: "env true with default false",
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env: envName,
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val: "true",
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def: false,
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expected: true,
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},
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{
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name: "env false with default true",
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env: envName,
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val: "false",
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def: true,
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expected: false,
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},
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{
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name: "env fails parsing with default true",
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env: envName,
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val: "NOT_A_BOOL",
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def: true,
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expected: true,
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},
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{
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name: "env fails parsing with default false",
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env: envName,
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val: "NOT_A_BOOL",
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def: false,
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expected: false,
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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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if tt.env != "" {
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t.Cleanup(func() {
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os.Unsetenv(tt.env)
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})
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os.Setenv(tt.env, tt.val)
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}
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actual := envBoolOr(tt.env, tt.def)
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if actual != tt.expected {
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t.Errorf("expected result %t, got %t", tt.expected, actual)
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}
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})
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}
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}
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func TestUserAgentHeaderInK8sRESTClientConfig(t *testing.T) {
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defer resetEnv()()
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settings := New()
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restConfig, err := settings.RESTClientGetter().ToRESTConfig()
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if err != nil {
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t.Fatal(err)
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}
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expectedUserAgent := version.GetUserAgent()
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if restConfig.UserAgent != expectedUserAgent {
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t.Errorf("expected User-Agent header %q in K8s REST client config, got %q", expectedUserAgent, restConfig.UserAgent)
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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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