ContainerImage.Pinniped/cmd/placeholder-name/app/app_test.go

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/*
Copyright 2020 VMware, Inc.
SPDX-License-Identifier: Apache-2.0
*/
package app
import (
"bytes"
"context"
"strings"
"testing"
"github.com/google/go-cmp/cmp"
"github.com/spf13/cobra"
"github.com/stretchr/testify/require"
)
const knownGoodUsage = `
placeholder-name provides a generic API for mapping an external
credential from somewhere to an internal credential to be used for
authenticating to the Kubernetes API.
Usage:
placeholder-name [flags]
Flags:
--cluster-signing-cert-file string path to cluster signing certificate
--cluster-signing-key-file string path to cluster signing private key
-c, --config string path to configuration file (default "placeholder-name.yaml")
--downward-api-path string path to Downward API volume mount (default "/etc/podinfo")
-h, --help help for placeholder-name
--log-flush-frequency duration Maximum number of seconds between log flushes (default 5s)
`
func TestCommand(t *testing.T) {
tests := []struct {
name string
args []string
wantErr string
wantStdout string
}{
{
name: "NoArgsSucceeds",
args: []string{},
},
{
name: "Usage",
args: []string{"-h"},
wantStdout: knownGoodUsage,
},
{
name: "OneArgFails",
args: []string{"tuna"},
wantErr: `unknown command "tuna" for "placeholder-name"`,
},
{
name: "ShortConfigFlagSucceeds",
args: []string{"-c", "some/path/to/config.yaml"},
},
{
name: "LongConfigFlagSucceeds",
args: []string{"--config", "some/path/to/config.yaml"},
},
{
name: "OneArgWithConfigFlagFails",
args: []string{
"--config", "some/path/to/config.yaml",
"tuna",
},
wantErr: `unknown command "tuna" for "placeholder-name"`,
},
}
for _, test := range tests {
test := test
t.Run(test.name, func(t *testing.T) {
stdout := bytes.NewBuffer([]byte{})
stderr := bytes.NewBuffer([]byte{})
a := New(context.Background(), test.args, stdout, stderr)
a.cmd.RunE = func(cmd *cobra.Command, args []string) error {
return nil
}
err := a.Run()
if test.wantErr != "" {
require.EqualError(t, err, test.wantErr)
} else {
require.NoError(t, err)
}
if test.wantStdout != "" {
require.Equal(t, strings.TrimSpace(test.wantStdout), strings.TrimSpace(stdout.String()), cmp.Diff(test.wantStdout, stdout.String()))
}
})
}
}