134 lines
3.3 KiB
Go
134 lines
3.3 KiB
Go
/*
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Copyright 2020 VMware, Inc.
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SPDX-License-Identifier: Apache-2.0
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*/
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package app
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import (
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"bytes"
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"context"
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"strings"
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"testing"
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"time"
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"github.com/spf13/cobra"
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"github.com/stretchr/testify/require"
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corev1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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corev1fake "k8s.io/client-go/kubernetes/fake"
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aggregationv1fake "k8s.io/kube-aggregator/pkg/client/clientset_generated/clientset/fake"
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)
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const knownGoodUsage = `
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placeholder-name provides a generic API for mapping an external
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credential from somewhere to an internal credential to be used for
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authenticating to the Kubernetes API.
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Usage:
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placeholder-name [flags]
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Flags:
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-c, --config string path to configuration file (default "placeholder-name.yaml")
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--downward-api-path string path to Downward API volume mount (default "/etc/podinfo")
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-h, --help help for placeholder-name
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`
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func TestCommand(t *testing.T) {
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tests := []struct {
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name string
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args []string
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wantErr string
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wantStdout string
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}{
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{
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name: "NoArgsSucceeds",
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args: []string{},
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},
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{
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name: "Usage",
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args: []string{"-h"},
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wantStdout: knownGoodUsage,
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},
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{
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name: "OneArgFails",
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args: []string{"tuna"},
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wantErr: `unknown command "tuna" for "placeholder-name"`,
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},
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{
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name: "ShortConfigFlagSucceeds",
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args: []string{"-c", "some/path/to/config.yaml"},
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},
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{
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name: "LongConfigFlagSucceeds",
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args: []string{"--config", "some/path/to/config.yaml"},
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},
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{
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name: "OneArgWithConfigFlagFails",
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args: []string{
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"--config", "some/path/to/config.yaml",
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"tuna",
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},
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wantErr: `unknown command "tuna" for "placeholder-name"`,
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},
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}
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for _, test := range tests {
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test := test
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t.Run(test.name, func(t *testing.T) {
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stdout := bytes.NewBuffer([]byte{})
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stderr := bytes.NewBuffer([]byte{})
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a := New(test.args, stdout, stderr)
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a.cmd.RunE = func(cmd *cobra.Command, args []string) error {
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return nil
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}
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err := a.Run()
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if test.wantErr != "" {
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require.EqualError(t, err, test.wantErr)
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} else {
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require.NoError(t, err)
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}
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if test.wantStdout != "" {
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require.Equal(t, strings.TrimSpace(test.wantStdout), strings.TrimSpace(stdout.String()))
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}
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})
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}
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}
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func TestServeApp(t *testing.T) {
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t.Parallel()
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fakev1 := corev1fake.NewSimpleClientset(&corev1.Namespace{ObjectMeta: metav1.ObjectMeta{Name: "test-namespace"}})
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fakeaggregationv1 := aggregationv1fake.NewSimpleClientset()
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t.Run("success", func(t *testing.T) {
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t.Parallel()
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ctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond)
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cancel()
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a := App{
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healthAddr: "127.0.0.1:0",
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mainAddr: "127.0.0.1:8443",
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configPath: "testdata/valid-config.yaml",
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downwardAPIPath: "testdata/podinfo",
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}
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err := a.serve(ctx, fakev1.CoreV1(), fakeaggregationv1)
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require.NoError(t, err)
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})
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t.Run("failure", func(t *testing.T) {
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t.Parallel()
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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a := App{
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healthAddr: "127.0.0.1:8081",
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mainAddr: "127.0.0.1:8081",
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configPath: "testdata/valid-config.yaml",
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downwardAPIPath: "testdata/podinfo",
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}
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err := a.serve(ctx, fakev1.CoreV1(), fakeaggregationv1)
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require.EqualError(t, err, "listen tcp 127.0.0.1:8081: bind: address already in use")
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})
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}
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