harness-drone/vendor/github.com/mitchellh/cli/cli_test.go

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2015-09-30 01:21:17 +00:00
package cli
import (
"bytes"
"reflect"
"testing"
)
func TestCLIIsHelp(t *testing.T) {
testCases := []struct {
args []string
isHelp bool
}{
{[]string{"foo", "-h"}, true},
{[]string{"foo", "-help"}, true},
{[]string{"foo", "--help"}, true},
{[]string{"foo", "-h", "bar"}, true},
{[]string{"foo", "bar"}, false},
{[]string{"-h", "bar"}, true},
}
for _, testCase := range testCases {
cli := &CLI{Args: testCase.args}
result := cli.IsHelp()
if result != testCase.isHelp {
t.Errorf("Expected '%#v'. Args: %#v", testCase.isHelp, testCase.args)
}
}
}
func TestCLIIsVersion(t *testing.T) {
testCases := []struct {
args []string
isVersion bool
}{
{[]string{"foo", "-v"}, true},
{[]string{"foo", "-version"}, true},
{[]string{"foo", "--version"}, true},
{[]string{"foo", "-v", "bar"}, true},
{[]string{"foo", "bar"}, false},
{[]string{"-h", "bar"}, false},
}
for _, testCase := range testCases {
cli := &CLI{Args: testCase.args}
result := cli.IsVersion()
if result != testCase.isVersion {
t.Errorf("Expected '%#v'. Args: %#v", testCase.isVersion, testCase.args)
}
}
}
func TestCLIRun(t *testing.T) {
command := new(MockCommand)
cli := &CLI{
Args: []string{"foo", "-bar", "-baz"},
Commands: map[string]CommandFactory{
"foo": func() (Command, error) {
return command, nil
},
},
}
exitCode, err := cli.Run()
if err != nil {
t.Fatalf("err: %s", err)
}
if exitCode != command.RunResult {
t.Fatalf("bad: %d", exitCode)
}
if !command.RunCalled {
t.Fatalf("run should be called")
}
if !reflect.DeepEqual(command.RunArgs, []string{"-bar", "-baz"}) {
t.Fatalf("bad args: %#v", command.RunArgs)
}
}
func TestCLIRun_printHelp(t *testing.T) {
testCases := [][]string{
{},
{"-h"},
{"i-dont-exist"},
}
for _, testCase := range testCases {
buf := new(bytes.Buffer)
helpText := "foo"
cli := &CLI{
Args: testCase,
HelpFunc: func(map[string]CommandFactory) string {
return helpText
},
HelpWriter: buf,
}
code, err := cli.Run()
if err != nil {
t.Errorf("Args: %#v. Error: %s", testCase, err)
continue
}
if code != 1 {
t.Errorf("Args: %#v. Code: %d", testCase, code)
continue
}
if buf.String() != (helpText + "\n") {
t.Errorf("Args: %#v. Text: %v", testCase, buf.String())
}
}
}
func TestCLIRun_printCommandHelp(t *testing.T) {
testCases := [][]string{
{"foo", "-h"},
{"-h", "foo"},
{"foo", "--help"},
}
for _, args := range testCases {
command := &MockCommand{
HelpText: "donuts",
}
buf := new(bytes.Buffer)
cli := &CLI{
Args: args,
Commands: map[string]CommandFactory{
"foo": func() (Command, error) {
return command, nil
},
},
HelpWriter: buf,
}
exitCode, err := cli.Run()
if err != nil {
t.Fatalf("err: %s", err)
}
if exitCode != 1 {
t.Fatalf("bad exit code: %d", exitCode)
}
if buf.String() != (command.HelpText + "\n") {
t.Fatalf("bad: %#v", buf.String())
}
}
}
func TestCLISubcommand(t *testing.T) {
testCases := []struct {
args []string
subcommand string
}{
{[]string{"bar"}, "bar"},
{[]string{"foo", "-h"}, "foo"},
{[]string{"-h", "bar"}, "bar"},
}
for _, testCase := range testCases {
cli := &CLI{Args: testCase.args}
result := cli.Subcommand()
if result != testCase.subcommand {
t.Errorf("Expected %#v, got %#v. Args: %#v",
testCase.subcommand, result, testCase.args)
}
}
}