cobra/zsh_completions_test.go
Haim Ashkenazi e2c45ac9eb Started working on Unified API for the various shell completions:
- Moved some general function to a more generic shell_completions file.
- Added functions to mark flag as directory completion.
- Started making the global functions docs more generic (not bash
  specific) and added compatibility matrix.
2019-06-07 10:09:50 -04:00

476 lines
13 KiB
Go

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
invocationArgs []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 description",
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 with and without globs",
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")
r.Flags().String("output", "", "output file")
r.MarkFlagFilename("output", "*.log", "*.txt")
return r
}(),
expectedExpressions: []string{
`\n +'\(-c --config\)'{-c,--config}'\[config file]:filename:_files'`,
`:_files -g "\*.log" -g "\*.txt"`,
},
},
{
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: "generated flags --help and --version should be created even when not executing root cmd",
root: func() *Command {
r := &Command{
Use: "mycmd",
Short: "mycmd short description",
Version: "myversion",
}
s := genTestCommand("sub1", true)
r.AddCommand(s)
return s
}(),
expectedExpressions: []string{
"--version",
"--help",
},
invocationArgs: []string{
"sub1",
},
skip: "--version and --help are currently not generated when not running on root command",
},
{
name: "zsh generation should run on root command",
root: func() *Command {
r := genTestCommand("root", false)
s := genTestCommand("sub1", true)
r.AddCommand(s)
return s
}(),
expectedExpressions: []string{
"function _root {",
},
},
{
name: "flag description with single quote (') shouldn't break quotes in completion file",
root: func() *Command {
r := genTestCommand("root", true)
r.Flags().Bool("private", false, "Don't show public info")
return r
}(),
expectedExpressions: []string{
`--private\[Don'\\''t show public info]`,
},
},
{
name: "argument completion for file with and without patterns",
root: func() *Command {
r := genTestCommand("root", true)
r.MarkZshCompPositionalArgumentFile(1, "*.log")
r.MarkZshCompPositionalArgumentFile(2)
return r
}(),
expectedExpressions: []string{
`'1: :_files -g "\*.log"' \\\n\s+'2: :_files`,
},
},
{
name: "argument zsh completion for words",
root: func() *Command {
r := genTestCommand("root", true)
r.MarkZshCompPositionalArgumentWords(1, "word1", "word2")
return r
}(),
expectedExpressions: []string{
`'1: :\("word1" "word2"\)`,
},
},
{
name: "argument completion for words with spaces",
root: func() *Command {
r := genTestCommand("root", true)
r.MarkZshCompPositionalArgumentWords(1, "single", "multiple words")
return r
}(),
expectedExpressions: []string{
`'1: :\("single" "multiple words"\)'`,
},
},
{
name: "argument completion when command has ValidArgs and no annotation for argument completion",
root: func() *Command {
r := genTestCommand("root", true)
r.ValidArgs = []string{"word1", "word2"}
return r
}(),
expectedExpressions: []string{
`'1: :\("word1" "word2"\)'`,
},
},
{
name: "argument completion when command has ValidArgs and no annotation for argument at argPosition 1",
root: func() *Command {
r := genTestCommand("root", true)
r.ValidArgs = []string{"word1", "word2"}
r.MarkZshCompPositionalArgumentFile(2)
return r
}(),
expectedExpressions: []string{
`'1: :\("word1" "word2"\)' \\`,
},
},
{
name: "directory completion for flag",
root: func() *Command {
r := genTestCommand("root", true)
r.Flags().String("test", "", "test")
r.PersistentFlags().String("ptest", "", "ptest")
r.MarkFlagDirname("test")
r.MarkPersistentFlagDirname("ptest")
return r
}(),
expectedExpressions: []string{
`--test\[test]:filename:_files -g "-\(/\)"`,
`--ptest\[ptest]:filename:_files -g "-\(/\)"`,
},
},
}
for _, tc := range tcs {
t.Run(tc.name, func(t *testing.T) {
if tc.skip != "" {
t.Skip(tc.skip)
}
tc.root.Root().SetArgs(tc.invocationArgs)
tc.root.Execute()
buf := new(bytes.Buffer)
if err := tc.root.GenZshCompletion(buf); err != nil {
t.Error(err)
}
output := buf.Bytes()
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("expected completion (%s) to match '%s'", buf.String(), expr)
}
}
})
}
}
func TestGenZshCompletionHidden(t *testing.T) {
tcs := []struct {
name string
root *Command
expectedExpressions []string
}{
{
name: "hidden commands",
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 TestMarkZshCompPositionalArgumentFile(t *testing.T) {
t.Run("Doesn't allow overwriting existing positional argument", func(t *testing.T) {
c := &Command{}
if err := c.MarkZshCompPositionalArgumentFile(1, "*.log"); err != nil {
t.Errorf("Received error when we shouldn't have: %v\n", err)
}
if err := c.MarkZshCompPositionalArgumentFile(1); err == nil {
t.Error("Didn't receive an error when trying to overwrite argument position")
}
})
t.Run("Refuses to accept argPosition less then 1", func(t *testing.T) {
c := &Command{}
err := c.MarkZshCompPositionalArgumentFile(0, "*")
if err == nil {
t.Fatal("Error was not thrown when indicating argument position 0")
}
if !strings.Contains(err.Error(), "position") {
t.Errorf("expected error message '%s' to contain 'position'", err.Error())
}
})
}
func TestMarkZshCompPositionalArgumentWords(t *testing.T) {
t.Run("Doesn't allow overwriting existing positional argument", func(t *testing.T) {
c := &Command{}
if err := c.MarkZshCompPositionalArgumentFile(1, "*.log"); err != nil {
t.Errorf("Received error when we shouldn't have: %v\n", err)
}
if err := c.MarkZshCompPositionalArgumentWords(1, "hello"); err == nil {
t.Error("Didn't receive an error when trying to overwrite argument position")
}
})
t.Run("Doesn't allow calling without words", func(t *testing.T) {
c := &Command{}
if err := c.MarkZshCompPositionalArgumentWords(0); err == nil {
t.Error("Should not allow saving empty word list for annotation")
}
})
t.Run("Refuses to accept argPosition less then 1", func(t *testing.T) {
c := &Command{}
err := c.MarkZshCompPositionalArgumentWords(0, "word")
if err == nil {
t.Fatal("Should not allow setting argument position less then 1")
}
if !strings.Contains(err.Error(), "position") {
t.Errorf("Expected error '%s' to contain 'position' but didn't", err.Error())
}
})
}
func BenchmarkMediumSizeConstruct(b *testing.B) {
root := constructLargeCommandHierarchy()
// 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 := zshCompExtractFlag(c)
resD := zshCompExtractFlag(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 constructLargeCommandHierarchy() *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 description")
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 description")
s1_3.Flags().IntVar(&in2, "int2", in2, "int2 description")
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
}