This repository has been archived on 2019-06-23. You can view files and clone it, but cannot push or open issues or pull requests.
mumbledj/vendor/github.com/urfave/cli/command_test.go

102 lines
2.7 KiB
Go
Raw Normal View History

package cli
import (
"errors"
"flag"
"fmt"
"io/ioutil"
"strings"
"testing"
)
func TestCommandFlagParsing(t *testing.T) {
cases := []struct {
testArgs []string
skipFlagParsing bool
expectedErr error
}{
{[]string{"blah", "blah", "-break"}, false, errors.New("flag provided but not defined: -break")}, // Test normal "not ignoring flags" flow
{[]string{"blah", "blah"}, true, nil}, // Test SkipFlagParsing without any args that look like flags
{[]string{"blah", "-break"}, true, nil}, // Test SkipFlagParsing with random flag arg
{[]string{"blah", "-help"}, true, nil}, // Test SkipFlagParsing with "special" help flag arg
}
for _, c := range cases {
app := NewApp()
app.Writer = ioutil.Discard
set := flag.NewFlagSet("test", 0)
set.Parse(c.testArgs)
context := NewContext(app, set, nil)
command := Command{
Name: "test-cmd",
Aliases: []string{"tc"},
Usage: "this is for testing",
Description: "testing",
Action: func(_ *Context) error { return nil },
}
command.SkipFlagParsing = c.skipFlagParsing
err := command.Run(context)
expect(t, err, c.expectedErr)
expect(t, []string(context.Args()), c.testArgs)
}
}
func TestCommand_Run_DoesNotOverwriteErrorFromBefore(t *testing.T) {
app := NewApp()
app.Commands = []Command{
{
Name: "bar",
Before: func(c *Context) error {
return fmt.Errorf("before error")
},
After: func(c *Context) error {
return fmt.Errorf("after error")
},
},
}
err := app.Run([]string{"foo", "bar"})
if err == nil {
t.Fatalf("expected to receive error from Run, got none")
}
if !strings.Contains(err.Error(), "before error") {
t.Errorf("expected text of error from Before method, but got none in \"%v\"", err)
}
if !strings.Contains(err.Error(), "after error") {
t.Errorf("expected text of error from After method, but got none in \"%v\"", err)
}
}
func TestCommand_OnUsageError_WithWrongFlagValue(t *testing.T) {
app := NewApp()
app.Commands = []Command{
{
Name: "bar",
Flags: []Flag{
IntFlag{Name: "flag"},
},
OnUsageError: func(c *Context, err error, _ bool) error {
if !strings.HasPrefix(err.Error(), "invalid value \"wrong\"") {
t.Errorf("Expect an invalid value error, but got \"%v\"", err)
}
return errors.New("intercepted: " + err.Error())
},
},
}
err := app.Run([]string{"foo", "bar", "--flag=wrong"})
if err == nil {
t.Fatalf("expected to receive error from Run, got none")
}
if !strings.HasPrefix(err.Error(), "intercepted: invalid value") {
t.Errorf("Expect an intercepted error, but got \"%v\"", err)
}
}