/usr/share/gocode/src/github.com/spf13/cobra/command_test.go is in golang-github-spf13-cobra-dev 0.0.1-1.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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import (
"bytes"
"fmt"
"os"
"reflect"
"strings"
"testing"
"github.com/spf13/pflag"
)
// test to ensure hidden commands run as intended
func TestHiddenCommandExecutes(t *testing.T) {
// ensure that outs does not already equal what the command will be setting it
// to, if it did this test would not actually be testing anything...
if outs == "hidden" {
t.Errorf("outs should NOT EQUAL hidden")
}
cmdHidden.Execute()
// upon running the command, the value of outs should now be 'hidden'
if outs != "hidden" {
t.Errorf("Hidden command failed to run!")
}
}
// test to ensure hidden commands do not show up in usage/help text
func TestHiddenCommandIsHidden(t *testing.T) {
if cmdHidden.IsAvailableCommand() {
t.Errorf("Hidden command found!")
}
}
func TestStripFlags(t *testing.T) {
tests := []struct {
input []string
output []string
}{
{
[]string{"foo", "bar"},
[]string{"foo", "bar"},
},
{
[]string{"foo", "--bar", "-b"},
[]string{"foo"},
},
{
[]string{"-b", "foo", "--bar", "bar"},
[]string{},
},
{
[]string{"-i10", "echo"},
[]string{"echo"},
},
{
[]string{"-i=10", "echo"},
[]string{"echo"},
},
{
[]string{"--int=100", "echo"},
[]string{"echo"},
},
{
[]string{"-ib", "echo", "-bfoo", "baz"},
[]string{"echo", "baz"},
},
{
[]string{"-i=baz", "bar", "-i", "foo", "blah"},
[]string{"bar", "blah"},
},
{
[]string{"--int=baz", "-bbar", "-i", "foo", "blah"},
[]string{"blah"},
},
{
[]string{"--cat", "bar", "-i", "foo", "blah"},
[]string{"bar", "blah"},
},
{
[]string{"-c", "bar", "-i", "foo", "blah"},
[]string{"bar", "blah"},
},
{
[]string{"--persist", "bar"},
[]string{"bar"},
},
{
[]string{"-p", "bar"},
[]string{"bar"},
},
}
cmdPrint := &Command{
Use: "print [string to print]",
Short: "Print anything to the screen",
Long: `an utterly useless command for testing.`,
Run: func(cmd *Command, args []string) {
tp = args
},
}
var flagi int
var flagstr string
var flagbool bool
cmdPrint.PersistentFlags().BoolVarP(&flagbool, "persist", "p", false, "help for persistent one")
cmdPrint.Flags().IntVarP(&flagi, "int", "i", 345, "help message for flag int")
cmdPrint.Flags().StringVarP(&flagstr, "bar", "b", "bar", "help message for flag string")
cmdPrint.Flags().BoolVarP(&flagbool, "cat", "c", false, "help message for flag bool")
for _, test := range tests {
output := stripFlags(test.input, cmdPrint)
if !reflect.DeepEqual(test.output, output) {
t.Errorf("expected: %v, got: %v", test.output, output)
}
}
}
func TestDisableFlagParsing(t *testing.T) {
targs := []string{}
cmdPrint := &Command{
DisableFlagParsing: true,
Run: func(cmd *Command, args []string) {
targs = args
},
}
args := []string{"cmd", "-v", "-race", "-file", "foo.go"}
cmdPrint.SetArgs(args)
err := cmdPrint.Execute()
if err != nil {
t.Error(err)
}
if !reflect.DeepEqual(args, targs) {
t.Errorf("expected: %v, got: %v", args, targs)
}
}
func TestInitHelpFlagMergesFlags(t *testing.T) {
usage := "custom flag"
baseCmd := Command{Use: "testcmd"}
baseCmd.PersistentFlags().Bool("help", false, usage)
cmd := Command{Use: "do"}
baseCmd.AddCommand(&cmd)
cmd.InitDefaultHelpFlag()
actual := cmd.Flags().Lookup("help").Usage
if actual != usage {
t.Fatalf("Expected the help flag from the base command with usage '%s', but got the default with usage '%s'", usage, actual)
}
}
func TestCommandsAreSorted(t *testing.T) {
EnableCommandSorting = true
originalNames := []string{"middle", "zlast", "afirst"}
expectedNames := []string{"afirst", "middle", "zlast"}
var tmpCommand = &Command{Use: "tmp"}
for _, name := range originalNames {
tmpCommand.AddCommand(&Command{Use: name})
}
for i, c := range tmpCommand.Commands() {
if expectedNames[i] != c.Name() {
t.Errorf("expected: %s, got: %s", expectedNames[i], c.Name())
}
}
EnableCommandSorting = true
}
func TestEnableCommandSortingIsDisabled(t *testing.T) {
EnableCommandSorting = false
originalNames := []string{"middle", "zlast", "afirst"}
var tmpCommand = &Command{Use: "tmp"}
for _, name := range originalNames {
tmpCommand.AddCommand(&Command{Use: name})
}
for i, c := range tmpCommand.Commands() {
if originalNames[i] != c.Name() {
t.Errorf("expected: %s, got: %s", originalNames[i], c.Name())
}
}
EnableCommandSorting = true
}
func TestSetOutput(t *testing.T) {
cmd := &Command{}
cmd.SetOutput(nil)
if out := cmd.OutOrStdout(); out != os.Stdout {
t.Fatalf("expected setting output to nil to revert back to stdout, got %v", out)
}
}
func TestFlagErrorFunc(t *testing.T) {
cmd := &Command{
Use: "print",
RunE: func(cmd *Command, args []string) error {
return nil
},
}
expectedFmt := "This is expected: %s"
cmd.SetFlagErrorFunc(func(c *Command, err error) error {
return fmt.Errorf(expectedFmt, err)
})
cmd.SetArgs([]string{"--bogus-flag"})
cmd.SetOutput(new(bytes.Buffer))
err := cmd.Execute()
expected := fmt.Sprintf(expectedFmt, "unknown flag: --bogus-flag")
if err.Error() != expected {
t.Errorf("expected %v, got %v", expected, err.Error())
}
}
// TestSortedFlags checks,
// if cmd.LocalFlags() is unsorted when cmd.Flags().SortFlags set to false.
// Related to https://github.com/spf13/cobra/issues/404.
func TestSortedFlags(t *testing.T) {
cmd := &Command{}
cmd.Flags().SortFlags = false
names := []string{"C", "B", "A", "D"}
for _, name := range names {
cmd.Flags().Bool(name, false, "")
}
i := 0
cmd.LocalFlags().VisitAll(func(f *pflag.Flag) {
if i == len(names) {
return
}
if isStringInStringSlice(f.Name, names) {
if names[i] != f.Name {
t.Errorf("Incorrect order. Expected %v, got %v", names[i], f.Name)
}
i++
}
})
}
// contains checks, if s is in ss.
func isStringInStringSlice(s string, ss []string) bool {
for _, v := range ss {
if v == s {
return true
}
}
return false
}
// TestHelpFlagInHelp checks,
// if '--help' flag is shown in help for child (executing `parent help child`),
// that has no other flags.
// Related to https://github.com/spf13/cobra/issues/302.
func TestHelpFlagInHelp(t *testing.T) {
output := new(bytes.Buffer)
parent := &Command{Use: "parent", Run: func(*Command, []string) {}}
parent.SetOutput(output)
child := &Command{Use: "child", Run: func(*Command, []string) {}}
parent.AddCommand(child)
parent.SetArgs([]string{"help", "child"})
err := parent.Execute()
if err != nil {
t.Fatal(err)
}
if !strings.Contains(output.String(), "[flags]") {
t.Errorf("\nExpecting to contain: %v\nGot: %v", "[flags]", output.String())
}
}
// TestMergeCommandLineToFlags checks,
// if pflag.CommandLine is correctly merged to c.Flags() after first call
// of c.mergePersistentFlags.
// Related to https://github.com/spf13/cobra/issues/443.
func TestMergeCommandLineToFlags(t *testing.T) {
pflag.Bool("boolflag", false, "")
c := &Command{Use: "c", Run: func(*Command, []string) {}}
c.mergePersistentFlags()
if c.Flags().Lookup("boolflag") == nil {
t.Fatal("Expecting to have flag from CommandLine in c.Flags()")
}
// Reset pflag.CommandLine flagset.
pflag.CommandLine = pflag.NewFlagSet(os.Args[0], pflag.ExitOnError)
}
// TestUseDeprecatedFlags checks,
// if cobra.Execute() prints a message, if a deprecated flag is used.
// Related to https://github.com/spf13/cobra/issues/463.
func TestUseDeprecatedFlags(t *testing.T) {
c := &Command{Use: "c", Run: func(*Command, []string) {}}
output := new(bytes.Buffer)
c.SetOutput(output)
c.Flags().BoolP("deprecated", "d", false, "deprecated flag")
c.Flags().MarkDeprecated("deprecated", "This flag is deprecated")
c.SetArgs([]string{"c", "-d"})
if err := c.Execute(); err != nil {
t.Error("Unexpected error:", err)
}
if !strings.Contains(output.String(), "This flag is deprecated") {
t.Errorf("Expected to contain deprecated message, but got %q", output.String())
}
}
// TestSetHelpCommand checks, if SetHelpCommand works correctly.
func TestSetHelpCommand(t *testing.T) {
c := &Command{Use: "c", Run: func(*Command, []string) {}}
output := new(bytes.Buffer)
c.SetOutput(output)
c.SetArgs([]string{"help"})
// Help will not be shown, if c has no subcommands.
c.AddCommand(&Command{
Use: "empty",
Run: func(cmd *Command, args []string) {},
})
correctMessage := "WORKS"
c.SetHelpCommand(&Command{
Use: "help [command]",
Short: "Help about any command",
Long: `Help provides help for any command in the application.
Simply type ` + c.Name() + ` help [path to command] for full details.`,
Run: func(c *Command, args []string) { c.Print(correctMessage) },
})
if err := c.Execute(); err != nil {
t.Error("Unexpected error:", err)
}
if output.String() != correctMessage {
t.Errorf("Expected to contain %q message, but got %q", correctMessage, output.String())
}
}
func TestTraverseWithParentFlags(t *testing.T) {
cmd := &Command{
Use: "do",
TraverseChildren: true,
}
cmd.Flags().String("foo", "", "foo things")
cmd.Flags().BoolP("goo", "g", false, "foo things")
sub := &Command{Use: "next"}
sub.Flags().String("add", "", "add things")
cmd.AddCommand(sub)
c, args, err := cmd.Traverse([]string{"-g", "--foo", "ok", "next", "--add"})
if err != nil {
t.Fatalf("Expected no error: %s", err)
}
if len(args) != 1 && args[0] != "--add" {
t.Fatalf("wrong args %s", args)
}
if c.Name() != sub.Name() {
t.Fatalf("wrong command %q expected %q", c.Name(), sub.Name())
}
}
func TestTraverseNoParentFlags(t *testing.T) {
cmd := &Command{
Use: "do",
TraverseChildren: true,
}
cmd.Flags().String("foo", "", "foo things")
sub := &Command{Use: "next"}
sub.Flags().String("add", "", "add things")
cmd.AddCommand(sub)
c, args, err := cmd.Traverse([]string{"next"})
if err != nil {
t.Fatalf("Expected no error: %s", err)
}
if len(args) != 0 {
t.Fatalf("wrong args %s", args)
}
if c.Name() != sub.Name() {
t.Fatalf("wrong command %q expected %q", c.Name(), sub.Name())
}
}
func TestTraverseWithBadParentFlags(t *testing.T) {
cmd := &Command{
Use: "do",
TraverseChildren: true,
}
sub := &Command{Use: "next"}
sub.Flags().String("add", "", "add things")
cmd.AddCommand(sub)
expected := "got unknown flag: --add"
c, _, err := cmd.Traverse([]string{"--add", "ok", "next"})
if err == nil || strings.Contains(err.Error(), expected) {
t.Fatalf("Expected error %s got %s", expected, err)
}
if c != nil {
t.Fatalf("Expected nil command")
}
}
func TestTraverseWithBadChildFlag(t *testing.T) {
cmd := &Command{
Use: "do",
TraverseChildren: true,
}
cmd.Flags().String("foo", "", "foo things")
sub := &Command{Use: "next"}
cmd.AddCommand(sub)
// Expect no error because the last commands args shouldn't be parsed in
// Traverse
c, args, err := cmd.Traverse([]string{"next", "--add"})
if err != nil {
t.Fatalf("Expected no error: %s", err)
}
if len(args) != 1 && args[0] != "--add" {
t.Fatalf("wrong args %s", args)
}
if c.Name() != sub.Name() {
t.Fatalf("wrong command %q expected %q", c.Name(), sub.Name())
}
}
func TestTraverseWithTwoSubcommands(t *testing.T) {
cmd := &Command{
Use: "do",
TraverseChildren: true,
}
sub := &Command{
Use: "sub",
TraverseChildren: true,
}
cmd.AddCommand(sub)
subsub := &Command{
Use: "subsub",
}
sub.AddCommand(subsub)
c, _, err := cmd.Traverse([]string{"sub", "subsub"})
if err != nil {
t.Fatalf("Expected no error: %s", err)
}
if c.Name() != subsub.Name() {
t.Fatalf("wrong command %q expected %q", c.Name(), subsub.Name())
}
}
func TestRequiredFlags(t *testing.T) {
c := &Command{Use: "c", Run: func(*Command, []string) {}}
output := new(bytes.Buffer)
c.SetOutput(output)
c.Flags().String("foo1", "", "required foo1")
c.MarkFlagRequired("foo1")
c.Flags().String("foo2", "", "required foo2")
c.MarkFlagRequired("foo2")
c.Flags().String("bar", "", "optional bar")
expected := fmt.Sprintf("Required flag(s) %q, %q have/has not been set", "foo1", "foo2")
if err := c.Execute(); err != nil {
if err.Error() != expected {
t.Errorf("expected %v, got %v", expected, err.Error())
}
}
}
func TestPersistentRequiredFlags(t *testing.T) {
parent := &Command{Use: "parent", Run: func(*Command, []string) {}}
output := new(bytes.Buffer)
parent.SetOutput(output)
parent.PersistentFlags().String("foo1", "", "required foo1")
parent.MarkPersistentFlagRequired("foo1")
parent.PersistentFlags().String("foo2", "", "required foo2")
parent.MarkPersistentFlagRequired("foo2")
parent.Flags().String("foo3", "", "optional foo3")
child := &Command{Use: "child", Run: func(*Command, []string) {}}
child.Flags().String("bar1", "", "required bar1")
child.MarkFlagRequired("bar1")
child.Flags().String("bar2", "", "required bar2")
child.MarkFlagRequired("bar2")
child.Flags().String("bar3", "", "optional bar3")
parent.AddCommand(child)
parent.SetArgs([]string{"child"})
expected := fmt.Sprintf("Required flag(s) %q, %q, %q, %q have/has not been set", "bar1", "bar2", "foo1", "foo2")
if err := parent.Execute(); err != nil {
if err.Error() != expected {
t.Errorf("expected %v, got %v", expected, err.Error())
}
}
}
// TestUpdateName checks if c.Name() updates on changed c.Use.
// Related to https://github.com/spf13/cobra/pull/422#discussion_r143918343.
func TestUpdateName(t *testing.T) {
c := &Command{Use: "name xyz"}
originalName := c.Name()
c.Use = "changedName abc"
if originalName == c.Name() || c.Name() != "changedName" {
t.Error("c.Name() should be updated on changed c.Use")
}
}
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