cobra/zsh_completions_test.go

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package cobra
import (
"bytes"
"regexp"
"strings"
"testing"
)
func TestGenZshCompletion(t *testing.T) {
var debug bool
var option string
tcs := []struct {
name string
root *Command
expectedExpressions []string
skip string
}{
{
name: "simple command",
root: func() *Command {
r := &Command{
Use: "mycommand",
Long: "My Command long description",
Run: emptyRun,
}
r.Flags().BoolVar(&debug, "debug", debug, "description")
return r
}(),
expectedExpressions: []string{
`(?s)function _mycommand {\s+_arguments \\\s+"--debug\[description\]".*--help.*}`,
"#compdef _mycommand mycommand",
},
},
{
name: "flags with both long and short flags",
root: func() *Command {
r := &Command{
Use: "testcmd",
Long: "long description",
Run: emptyRun,
}
r.Flags().BoolVarP(&debug, "debug", "d", debug, "debug description")
return r
}(),
expectedExpressions: []string{
`"\(-d --debug\)"{-d,--debug}"\[debug description\]"`,
},
},
{
name: "command with subcommands and flags with values",
root: func() *Command {
r := &Command{
Use: "rootcmd",
Long: "Long rootcmd description",
}
d := &Command{
Use: "subcmd1",
Short: "Subcmd1 short descrition",
Run: emptyRun,
}
e := &Command{
Use: "subcmd2",
Long: "Subcmd2 short description",
Run: emptyRun,
}
r.PersistentFlags().BoolVar(&debug, "debug", debug, "description")
d.Flags().StringVarP(&option, "option", "o", option, "option description")
r.AddCommand(d, e)
return r
}(),
expectedExpressions: []string{
`commands=\(\n\s+"help:.*\n\s+"subcmd1:.*\n\s+"subcmd2:.*\n\s+\)`,
`_arguments \\\n.*"--debug\[description]"`,
`_arguments -C \\\n.*"--debug\[description]"`,
`function _rootcmd_subcmd1 {`,
`function _rootcmd_subcmd1 {`,
`_arguments \\\n.*"\(-o --option\)"{-o,--option}"\[option description]:" \\\n`,
},
},
{
name: "filename completion",
root: func() *Command {
var file string
r := &Command{
Use: "mycmd",
Short: "my command short description",
Run: emptyRun,
}
r.Flags().StringVarP(&file, "config", "c", file, "config file")
r.MarkFlagFilename("config")
return r
}(),
expectedExpressions: []string{
`\n +"\(-c --config\)"{-c,--config}"\[config file]:filename:_files"`,
},
},
{
name: "repeated variables both with and without value",
root: func() *Command {
r := genTestCommand("mycmd", true)
_ = r.Flags().BoolSliceP("debug", "d", []bool{}, "debug usage")
_ = r.Flags().StringArray("option", []string{}, "options")
return r
}(),
expectedExpressions: []string{
`"\*--option\[options]`,
`"\(\*-d \*--debug\)"{\\\*-d,\\\*--debug}`,
},
},
{
name: "boolSlice should not accept arguments",
root: func() *Command {
r := genTestCommand("mycmd", true)
r.Flags().BoolSlice("verbose", []bool{}, "verbosity level")
return r
}(),
expectedExpressions: []string{
`"\*--verbose\[verbosity level]"`,
},
skip: "BoolSlice behaves strangely both with NoOptDefVal and type (identifies as bool)",
},
}
for _, tc := range tcs {
t.Run(tc.name, func(t *testing.T) {
tc.root.Execute()
buf := new(bytes.Buffer)
if err := tc.root.GenZshCompletion(buf); err != nil {
t.Error(err)
}
output := buf.Bytes()
2017-10-31 21:58:37 +03:00
if tc.skip != "" {
t.Skip("Skipping:", tc.skip)
}
for _, expr := range tc.expectedExpressions {
rgx, err := regexp.Compile(expr)
if err != nil {
t.Errorf("error compiling expression (%s): %v", expr, err)
}
if !rgx.Match(output) {
t.Errorf("expeced completion (%s) to match '%s'", buf.String(), expr)
}
}
})
}
}
func TestGenZshCompletionHidden(t *testing.T) {
tcs := []struct {
name string
root *Command
expectedExpressions []string
}{
{
name: "hidden commmands",
root: func() *Command {
r := &Command{
Use: "main",
Short: "main short description",
}
s1 := &Command{
Use: "sub1",
Hidden: true,
Run: emptyRun,
}
s2 := &Command{
Use: "sub2",
Short: "short sub2 description",
Run: emptyRun,
}
r.AddCommand(s1, s2)
return r
}(),
expectedExpressions: []string{
"sub1",
},
},
{
name: "hidden flags",
root: func() *Command {
var hidden string
r := &Command{
Use: "root",
Short: "root short description",
Run: emptyRun,
}
r.Flags().StringVarP(&hidden, "hidden", "H", hidden, "hidden usage")
if err := r.Flags().MarkHidden("hidden"); err != nil {
t.Errorf("Error setting flag hidden: %v\n", err)
}
return r
}(),
expectedExpressions: []string{
"--hidden",
},
},
}
for _, tc := range tcs {
t.Run(tc.name, func(t *testing.T) {
tc.root.Execute()
buf := new(bytes.Buffer)
if err := tc.root.GenZshCompletion(buf); err != nil {
t.Error(err)
}
output := buf.String()
for _, expr := range tc.expectedExpressions {
if strings.Contains(output, expr) {
t.Errorf("Expected completion (%s) not to contain '%s' but it does", output, expr)
}
}
})
}
}
func BenchmarkMediumSizeConstruct(b *testing.B) {
root := constructLargeCommandHeirarchy()
// if err := root.GenZshCompletionFile("_mycmd"); err != nil {
// b.Error(err)
// }
for i := 0; i < b.N; i++ {
buf := new(bytes.Buffer)
err := root.GenZshCompletion(buf)
if err != nil {
b.Error(err)
}
}
}
func TestExtractFlags(t *testing.T) {
var debug, cmdc, cmdd bool
c := &Command{
Use: "cmdC",
Long: "Command C",
}
c.PersistentFlags().BoolVarP(&debug, "debug", "d", debug, "debug mode")
c.Flags().BoolVar(&cmdc, "cmd-c", cmdc, "Command C")
d := &Command{
Use: "CmdD",
Long: "Command D",
}
d.Flags().BoolVar(&cmdd, "cmd-d", cmdd, "Command D")
c.AddCommand(d)
resC := extractFlags(c)
resD := extractFlags(d)
if len(resC) != 2 {
t.Errorf("expected Command C to return 2 flags, got %d", len(resC))
}
if len(resD) != 2 {
t.Errorf("expected Command D to return 2 flags, got %d", len(resD))
}
}
func constructLargeCommandHeirarchy() *Command {
var config, st1, st2 string
var long, debug bool
var in1, in2 int
var verbose []bool
r := genTestCommand("mycmd", false)
r.PersistentFlags().StringVarP(&config, "config", "c", config, "config usage")
if err := r.MarkPersistentFlagFilename("config", "*"); err != nil {
panic(err)
}
s1 := genTestCommand("sub1", true)
s1.Flags().BoolVar(&long, "long", long, "long descriptin")
s1.Flags().BoolSliceVar(&verbose, "verbose", verbose, "verbose description")
s1.Flags().StringArray("option", []string{}, "various options")
s2 := genTestCommand("sub2", true)
s2.PersistentFlags().BoolVar(&debug, "debug", debug, "debug description")
s3 := genTestCommand("sub3", true)
s3.Hidden = true
s1_1 := genTestCommand("sub1sub1", true)
s1_1.Flags().StringVar(&st1, "st1", st1, "st1 description")
s1_1.Flags().StringVar(&st2, "st2", st2, "st2 description")
s1_2 := genTestCommand("sub1sub2", true)
s1_3 := genTestCommand("sub1sub3", true)
s1_3.Flags().IntVar(&in1, "int1", in1, "int1 descriptionn")
s1_3.Flags().IntVar(&in2, "int2", in2, "int2 descriptionn")
s1_3.Flags().StringArrayP("option", "O", []string{}, "more options")
s2_1 := genTestCommand("sub2sub1", true)
s2_2 := genTestCommand("sub2sub2", true)
s2_3 := genTestCommand("sub2sub3", true)
s2_4 := genTestCommand("sub2sub4", true)
s2_5 := genTestCommand("sub2sub5", true)
s1.AddCommand(s1_1, s1_2, s1_3)
s2.AddCommand(s2_1, s2_2, s2_3, s2_4, s2_5)
r.AddCommand(s1, s2, s3)
r.Execute()
return r
}
func genTestCommand(name string, withRun bool) *Command {
r := &Command{
Use: name,
Short: name + " short description",
Long: "Long description for " + name,
}
if withRun {
r.Run = emptyRun
}
return r
}