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|
package cobra
import (
"bytes"
"fmt"
"os"
"os/exec"
"strings"
"testing"
)
func checkOmit(t *testing.T, found, unexpected string) {
if strings.Contains(found, unexpected) {
t.Errorf("Got: %q\nBut should not have!\n", unexpected)
}
}
func check(t *testing.T, found, expected string) {
if !strings.Contains(found, expected) {
t.Errorf("Expecting to contain: \n %q\nGot:\n %q\n", expected, found)
}
}
func runShellCheck(s string) error {
excluded := []string{
"SC2034", // PREFIX appears unused. Verify it or export it.
}
cmd := exec.Command("shellcheck", "-s", "bash", "-", "-e", strings.Join(excluded, ","))
cmd.Stderr = os.Stderr
cmd.Stdout = os.Stdout
stdin, err := cmd.StdinPipe()
if err != nil {
return err
}
go func() {
stdin.Write([]byte(s))
stdin.Close()
}()
return cmd.Run()
}
// World worst custom function, just keep telling you to enter hello!
const bashCompletionFunc = `__custom_func() {
COMPREPLY=( "hello" )
}
`
func TestBashCompletions(t *testing.T) {
rootCmd := &Command{
Use: "root",
ArgAliases: []string{"pods", "nodes", "services", "replicationcontrollers", "po", "no", "svc", "rc"},
ValidArgs: []string{"pod", "node", "service", "replicationcontroller"},
BashCompletionFunction: bashCompletionFunc,
Run: emptyRun,
}
rootCmd.Flags().IntP("introot", "i", -1, "help message for flag introot")
rootCmd.MarkFlagRequired("introot")
// Filename.
rootCmd.Flags().String("filename", "", "Enter a filename")
rootCmd.MarkFlagFilename("filename", "json", "yaml", "yml")
// Persistent filename.
rootCmd.PersistentFlags().String("persistent-filename", "", "Enter a filename")
rootCmd.MarkPersistentFlagFilename("persistent-filename")
rootCmd.MarkPersistentFlagRequired("persistent-filename")
// Filename extensions.
rootCmd.Flags().String("filename-ext", "", "Enter a filename (extension limited)")
rootCmd.MarkFlagFilename("filename-ext")
rootCmd.Flags().String("custom", "", "Enter a filename (extension limited)")
rootCmd.MarkFlagCustom("custom", "__complete_custom")
// Subdirectories in a given directory.
rootCmd.Flags().String("theme", "", "theme to use (located in /themes/THEMENAME/)")
rootCmd.Flags().SetAnnotation("theme", BashCompSubdirsInDir, []string{"themes"})
echoCmd := &Command{
Use: "echo [string to echo]",
Aliases: []string{"say"},
Short: "Echo anything to the screen",
Long: "an utterly useless command for testing.",
Example: "Just run cobra-test echo",
Run: emptyRun,
}
printCmd := &Command{
Use: "print [string to print]",
Args: MinimumNArgs(1),
Short: "Print anything to the screen",
Long: "an absolutely utterly useless command for testing.",
Run: emptyRun,
}
deprecatedCmd := &Command{
Use: "deprecated [can't do anything here]",
Args: NoArgs,
Short: "A command which is deprecated",
Long: "an absolutely utterly useless command for testing deprecation!.",
Deprecated: "Please use echo instead",
Run: emptyRun,
}
colonCmd := &Command{
Use: "cmd:colon",
Run: emptyRun,
}
timesCmd := &Command{
Use: "times [# times] [string to echo]",
SuggestFor: []string{"counts"},
Args: OnlyValidArgs,
ValidArgs: []string{"one", "two", "three", "four"},
Short: "Echo anything to the screen more times",
Long: "a slightly useless command for testing.",
Run: emptyRun,
}
echoCmd.AddCommand(timesCmd)
rootCmd.AddCommand(echoCmd, printCmd, deprecatedCmd, colonCmd)
buf := new(bytes.Buffer)
rootCmd.GenBashCompletion(buf)
output := buf.String()
check(t, output, "_root")
check(t, output, "_root_echo")
check(t, output, "_root_echo_times")
check(t, output, "_root_print")
check(t, output, "_root_cmd__colon")
// check for required flags
check(t, output, `must_have_one_flag+=("--introot=")`)
check(t, output, `must_have_one_flag+=("--persistent-filename=")`)
// check for custom completion function
check(t, output, `COMPREPLY=( "hello" )`)
// check for required nouns
check(t, output, `must_have_one_noun+=("pod")`)
// check for noun aliases
check(t, output, `noun_aliases+=("pods")`)
check(t, output, `noun_aliases+=("rc")`)
checkOmit(t, output, `must_have_one_noun+=("pods")`)
// check for filename extension flags
check(t, output, `flags_completion+=("_filedir")`)
// check for filename extension flags
check(t, output, `must_have_one_noun+=("three")`)
// check for filename extension flags
check(t, output, fmt.Sprintf(`flags_completion+=("__%s_handle_filename_extension_flag json|yaml|yml")`, rootCmd.Name()))
// check for custom flags
check(t, output, `flags_completion+=("__complete_custom")`)
// check for subdirs_in_dir flags
check(t, output, fmt.Sprintf(`flags_completion+=("__%s_handle_subdirs_in_dir_flag themes")`, rootCmd.Name()))
checkOmit(t, output, deprecatedCmd.Name())
// If available, run shellcheck against the script.
if err := exec.Command("which", "shellcheck").Run(); err != nil {
return
}
if err := runShellCheck(output); err != nil {
t.Fatalf("shellcheck failed: %v", err)
}
}
func TestBashCompletionHiddenFlag(t *testing.T) {
c := &Command{Use: "c", Run: emptyRun}
const flagName = "hiddenFlag"
c.Flags().Bool(flagName, false, "")
c.Flags().MarkHidden(flagName)
buf := new(bytes.Buffer)
c.GenBashCompletion(buf)
output := buf.String()
if strings.Contains(output, flagName) {
t.Errorf("Expected completion to not include %q flag: Got %v", flagName, output)
}
}
func TestBashCompletionDeprecatedFlag(t *testing.T) {
c := &Command{Use: "c", Run: emptyRun}
const flagName = "deprecated-flag"
c.Flags().Bool(flagName, false, "")
c.Flags().MarkDeprecated(flagName, "use --not-deprecated instead")
buf := new(bytes.Buffer)
c.GenBashCompletion(buf)
output := buf.String()
if strings.Contains(output, flagName) {
t.Errorf("expected completion to not include %q flag: Got %v", flagName, output)
}
}
|
