consul/command/snapshot/inspect/snapshot_inspect_test.go

115 lines
2.4 KiB
Go

package inspect
import (
"flag"
"io/ioutil"
"path/filepath"
"strings"
"testing"
"github.com/mitchellh/cli"
"github.com/stretchr/testify/require"
)
// update allows golden files to be updated based on the current output.
var update = flag.Bool("update", false, "update golden files")
// golden reads and optionally writes the expected data to the golden file,
// returning the contents as a string.
func golden(t *testing.T, name, got string) string {
t.Helper()
golden := filepath.Join("testdata", name+".golden")
if *update && got != "" {
err := ioutil.WriteFile(golden, []byte(got), 0644)
require.NoError(t, err)
}
expected, err := ioutil.ReadFile(golden)
require.NoError(t, err)
return string(expected)
}
func TestSnapshotInspectCommand_noTabs(t *testing.T) {
t.Parallel()
if strings.ContainsRune(New(cli.NewMockUi()).Help(), '\t') {
t.Fatal("help has tabs")
}
}
func TestSnapshotInspectCommand_Validation(t *testing.T) {
t.Parallel()
ui := cli.NewMockUi()
c := New(ui)
cases := map[string]struct {
args []string
output string
}{
"no file": {
[]string{},
"Missing FILE argument",
},
"extra args": {
[]string{"foo", "bar", "baz"},
"Too many arguments",
},
}
for name, tc := range cases {
// Ensure our buffer is always clear
if ui.ErrorWriter != nil {
ui.ErrorWriter.Reset()
}
if ui.OutputWriter != nil {
ui.OutputWriter.Reset()
}
code := c.Run(tc.args)
if code == 0 {
t.Errorf("%s: expected non-zero exit", name)
}
output := ui.ErrorWriter.String()
if !strings.Contains(output, tc.output) {
t.Errorf("%s: expected %q to contain %q", name, output, tc.output)
}
}
}
func TestSnapshotInspectCommand(t *testing.T) {
filepath := "./testdata/backup.snap"
// Inspect the snapshot
ui := cli.NewMockUi()
c := New(ui)
args := []string{filepath}
code := c.Run(args)
if code != 0 {
t.Fatalf("bad: %d. %#v", code, ui.ErrorWriter.String())
}
want := golden(t, t.Name(), ui.OutputWriter.String())
require.Equal(t, want, ui.OutputWriter.String())
}
func TestSnapshotInspectInvalidFile(t *testing.T) {
// Attempt to open a non-snapshot file.
filepath := "./testdata/TestSnapshotInspectCommand.golden"
// Inspect the snapshot
ui := cli.NewMockUi()
c := New(ui)
args := []string{filepath}
code := c.Run(args)
// Just check it was an error code returned and not a panic - originally this
// would panic.
if code == 0 {
t.Fatalf("should return an error code")
}
}