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package cli
import (
"bytes"
"errors"
"fmt"
"testing"
"github.com/stretchr/testify/assert"
)
func TestHandleExitCoder_nil(t *testing.T) {
exitCode := 0
called := false
OsExiter = func(rc int) {
if !called {
exitCode = rc
called = true
}
}
defer func() { OsExiter = fakeOsExiter }()
HandleExitCoder(nil)
assert.Equal(t, 0, exitCode)
assert.False(t, called)
}
func TestHandleExitCoder_ExitCoder(t *testing.T) {
exitCode := 0
called := false
OsExiter = func(rc int) {
if !called {
exitCode = rc
called = true
}
}
defer func() { OsExiter = fakeOsExiter }()
HandleExitCoder(Exit("galactic perimeter breach", 9))
assert.Equal(t, 9, exitCode)
assert.True(t, called)
}
func TestHandleExitCoder_ErrorExitCoder(t *testing.T) {
exitCode := 0
called := false
OsExiter = func(rc int) {
if !called {
exitCode = rc
called = true
}
}
defer func() { OsExiter = fakeOsExiter }()
HandleExitCoder(Exit(errors.New("galactic perimeter breach"), 9))
assert.Equal(t, 9, exitCode)
assert.True(t, called)
}
func TestHandleExitCoder_MultiErrorWithExitCoder(t *testing.T) {
exitCode := 0
called := false
OsExiter = func(rc int) {
if !called {
exitCode = rc
called = true
}
}
defer func() { OsExiter = fakeOsExiter }()
exitErr := Exit("galactic perimeter breach", 9)
exitErr2 := Exit("last ExitCoder", 11)
err := newMultiError(errors.New("wowsa"), errors.New("egad"), exitErr, exitErr2)
HandleExitCoder(err)
assert.Equal(t, 11, exitCode)
assert.True(t, called)
}
type exitFormatter struct {
code int
}
func (f *exitFormatter) Format(s fmt.State, verb rune) {
_, _ = s.Write([]byte("some other special"))
}
func (f *exitFormatter) ExitCode() int {
return f.code
}
func (f *exitFormatter) Error() string {
return fmt.Sprintf("my special error code %d", f.code)
}
func TestHandleExitCoder_ErrorFormatter(t *testing.T) {
exitCode := 0
called := false
OsExiter = func(rc int) {
if !called {
exitCode = rc
called = true
}
}
oldWriter := ErrWriter
var buf bytes.Buffer
ErrWriter = &buf
defer func() {
OsExiter = fakeOsExiter
ErrWriter = oldWriter
}()
exitErr := Exit("galactic perimeter breach", 9)
exitErr2 := Exit("last ExitCoder", 11)
exitErr3 := &exitFormatter{code: 12}
// add some recursion for multi error to fix test coverage
err := newMultiError(errors.New("wowsa"), errors.New("egad"), exitErr3, newMultiError(exitErr, exitErr2))
HandleExitCoder(err)
assert.Equal(t, 11, exitCode)
assert.True(t, called)
assert.Contains(t, buf.String(), "some other special")
}
func TestHandleExitCoder_MultiErrorWithoutExitCoder(t *testing.T) {
exitCode := 0
called := false
OsExiter = func(rc int) {
if !called {
exitCode = rc
called = true
}
}
defer func() { OsExiter = fakeOsExiter }()
err := newMultiError(errors.New("wowsa"), errors.New("egad"))
HandleExitCoder(err)
assert.Equal(t, 1, exitCode)
assert.True(t, called)
}
// make a stub to not import pkg/errors
type ErrorWithFormat struct {
error
}
func NewErrorWithFormat(m string) *ErrorWithFormat {
return &ErrorWithFormat{error: errors.New(m)}
}
func (f *ErrorWithFormat) Format(s fmt.State, verb rune) {
fmt.Fprintf(s, "This the format: %v", f.error)
}
func TestHandleExitCoder_ErrorWithFormat(t *testing.T) {
called := false
OsExiter = func(int) {
if !called {
called = true
}
}
ErrWriter = &bytes.Buffer{}
defer func() {
OsExiter = fakeOsExiter
ErrWriter = fakeErrWriter
}()
err := Exit(NewErrorWithFormat("I am formatted"), 1)
HandleExitCoder(err)
assert.True(t, called)
assert.Equal(t, ErrWriter.(*bytes.Buffer).String(), "This the format: I am formatted\n")
}
func TestHandleExitCoder_MultiErrorWithFormat(t *testing.T) {
called := false
OsExiter = func(int) {
if !called {
called = true
}
}
ErrWriter = &bytes.Buffer{}
defer func() { OsExiter = fakeOsExiter }()
err := newMultiError(NewErrorWithFormat("err1"), NewErrorWithFormat("err2"))
HandleExitCoder(err)
assert.True(t, called)
assert.Equal(t, ErrWriter.(*bytes.Buffer).String(), "This the format: err1\nThis the format: err2\n")
}
func TestMultiErrorErrorsCopy(t *testing.T) {
errList := []error{
errors.New("foo"),
errors.New("bar"),
errors.New("baz"),
}
me := newMultiError(errList...)
assert.Equal(t, errList, me.Errors())
}
func TestErrRequiredFlags_Error(t *testing.T) {
missingFlags := []string{"flag1", "flag2"}
err := &errRequiredFlags{missingFlags: missingFlags}
expectedMsg := "Required flags \"flag1, flag2\" not set"
assert.Equal(t, expectedMsg, err.Error())
missingFlags = []string{"flag1"}
err = &errRequiredFlags{missingFlags: missingFlags}
expectedMsg = "Required flag \"flag1\" not set"
assert.Equal(t, expectedMsg, err.Error())
}
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