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|
package getopt
import (
"errors"
"reflect"
"testing"
"src.elv.sh/pkg/errutil"
)
var (
vSpec = &OptionSpec{'v', "verbose", NoArgument}
nSpec = &OptionSpec{'n', "dry-run", NoArgument}
fSpec = &OptionSpec{'f', "file", RequiredArgument}
iSpec = &OptionSpec{'i', "in-place", OptionalArgument}
specs = []*OptionSpec{vSpec, nSpec, fSpec, iSpec}
)
var parseTests = []struct {
name string
cfg Config
args []string
wantOpts []*Option
wantArgs []string
wantErr error
}{
{
name: "short option",
args: []string{"-v"},
wantOpts: []*Option{{Spec: vSpec}},
},
{
name: "short option with required argument",
args: []string{"-fname"},
wantOpts: []*Option{{Spec: fSpec, Argument: "name"}},
},
{
name: "short option with required argument in separate argument",
args: []string{"-f", "name"},
wantOpts: []*Option{{Spec: fSpec, Argument: "name"}},
},
{
name: "short option with optional argument",
args: []string{"-i.bak"},
wantOpts: []*Option{{Spec: iSpec, Argument: ".bak"}},
},
{
name: "short option with optional argument omitted",
args: []string{"-i", ".bak"},
wantOpts: []*Option{{Spec: iSpec}},
wantArgs: []string{".bak"},
},
{
name: "short option chaining",
args: []string{"-vn"},
wantOpts: []*Option{{Spec: vSpec}, {Spec: nSpec}},
},
{
name: "short option chaining with argument",
args: []string{"-vfname"},
wantOpts: []*Option{{Spec: vSpec}, {Spec: fSpec, Argument: "name"}},
},
{
name: "short option chaining with argument in separate argument",
args: []string{"-vf", "name"},
wantOpts: []*Option{{Spec: vSpec}, {Spec: fSpec, Argument: "name"}},
},
{
name: "long option",
args: []string{"--verbose"},
wantOpts: []*Option{{Spec: vSpec, Long: true}},
},
{
name: "long option with required argument",
args: []string{"--file=name"},
wantOpts: []*Option{{Spec: fSpec, Long: true, Argument: "name"}},
},
{
name: "long option with required argument in separate argument",
args: []string{"--file", "name"},
wantOpts: []*Option{{Spec: fSpec, Long: true, Argument: "name"}},
},
{
name: "long option with optional argument",
args: []string{"--in-place=.bak"},
wantOpts: []*Option{{Spec: iSpec, Long: true, Argument: ".bak"}},
},
{
name: "long option with optional argument omitted",
args: []string{"--in-place", ".bak"},
wantOpts: []*Option{{Spec: iSpec, Long: true}},
wantArgs: []string{".bak"},
},
{
name: "long option, LongOnly mode",
args: []string{"-verbose"},
cfg: LongOnly,
wantOpts: []*Option{{Spec: vSpec, Long: true}},
},
{
name: "long option with required argument, LongOnly mode",
args: []string{"-file", "name"},
cfg: LongOnly,
wantOpts: []*Option{{Spec: fSpec, Long: true, Argument: "name"}},
},
{
name: "StopAfterDoubleDash off",
args: []string{"-v", "--", "-n"},
wantOpts: []*Option{{Spec: vSpec}, {Spec: nSpec}},
wantArgs: []string{"--"},
},
{
name: "StopAfterDoubleDash on",
args: []string{"-v", "--", "-n"},
cfg: StopAfterDoubleDash,
wantOpts: []*Option{{Spec: vSpec}},
wantArgs: []string{"-n"},
},
{
name: "StopBeforeFirstNonOption off",
args: []string{"-v", "foo", "-n"},
wantOpts: []*Option{{Spec: vSpec}, {Spec: nSpec}},
wantArgs: []string{"foo"},
},
{
name: "StopBeforeFirstNonOption on",
args: []string{"-v", "foo", "-n"},
cfg: StopBeforeFirstNonOption,
wantOpts: []*Option{{Spec: vSpec}},
wantArgs: []string{"foo", "-n"},
},
{
name: "single dash is not an option",
args: []string{"-"},
wantArgs: []string{"-"},
},
{
name: "single dash is not an option, LongOnly mode",
args: []string{"-"},
cfg: LongOnly,
wantArgs: []string{"-"},
},
{
name: "short option with required argument missing",
args: []string{"-f"},
wantErr: errors.New("missing argument for -f"),
},
{
name: "long option with required argument missing",
args: []string{"--file"},
wantErr: errors.New("missing argument for --file"),
},
{
name: "unknown short option",
args: []string{"-b"},
wantOpts: []*Option{
{Spec: &OptionSpec{Short: 'b', Arity: OptionalArgument}, Unknown: true}},
wantErr: errors.New("unknown option -b"),
},
{
name: "unknown short option with argument",
args: []string{"-bfoo"},
wantOpts: []*Option{
{Spec: &OptionSpec{Short: 'b', Arity: OptionalArgument}, Unknown: true, Argument: "foo"}},
wantErr: errors.New("unknown option -b"),
},
{
name: "unknown long option",
args: []string{"--bad"},
wantOpts: []*Option{
{Spec: &OptionSpec{Long: "bad", Arity: OptionalArgument}, Long: true, Unknown: true}},
wantErr: errors.New("unknown option --bad"),
},
{
name: "unknown long option with argument",
args: []string{"--bad=foo"},
wantOpts: []*Option{
{Spec: &OptionSpec{Long: "bad", Arity: OptionalArgument}, Long: true, Unknown: true, Argument: "foo"}},
wantErr: errors.New("unknown option --bad"),
},
{
name: "multiple errors",
args: []string{"-b", "-f"},
wantOpts: []*Option{
{Spec: &OptionSpec{Short: 'b', Arity: OptionalArgument}, Unknown: true}},
wantErr: errutil.Multi(
errors.New("missing argument for -f"), errors.New("unknown option -b")),
},
}
func TestParse(t *testing.T) {
for _, tc := range parseTests {
t.Run(tc.name, func(t *testing.T) {
opts, args, err := Parse(tc.args, specs, tc.cfg)
check := func(name string, got, want any) {
if !reflect.DeepEqual(got, want) {
t.Errorf("Parse(%#v) (config = %v)\ngot %s = %v, want %v",
tc.args, tc.cfg, name, got, want)
}
}
check("opts", opts, tc.wantOpts)
check("args", args, tc.wantArgs)
check("err", err, tc.wantErr)
})
}
}
var completeTests = []struct {
name string
cfg Config
args []string
wantOpts []*Option
wantArgs []string
wantCtx Context
}{
{
name: "NewOptionOrArgument",
args: []string{""},
wantCtx: Context{Type: OptionOrArgument},
},
{
name: "NewOption",
args: []string{"-"},
wantCtx: Context{Type: AnyOption},
},
{
name: "LongOption",
args: []string{"--f"},
wantCtx: Context{Type: LongOption, Text: "f"},
},
{
name: "LongOption with LongOnly",
args: []string{"-f"},
cfg: LongOnly,
wantCtx: Context{Type: LongOption, Text: "f"},
},
{
name: "ChainShortOption",
args: []string{"-v"},
wantOpts: []*Option{{Spec: vSpec}},
wantCtx: Context{Type: ChainShortOption},
},
{
name: "OptionArgument of short option, separate argument",
args: []string{"-f", "foo"},
wantCtx: Context{
Type: OptionArgument,
Option: &Option{Spec: fSpec, Argument: "foo"}},
},
{
name: "OptionArgument of short option, same argument",
args: []string{"-ffoo"},
wantCtx: Context{
Type: OptionArgument,
Option: &Option{Spec: fSpec, Argument: "foo"}},
},
{
name: "OptionArgument of long option, separate argument",
args: []string{"--file", "foo"},
wantCtx: Context{
Type: OptionArgument,
Option: &Option{Spec: fSpec, Long: true, Argument: "foo"}},
},
{
name: "OptionArgument of long option, same argument",
args: []string{"--file=foo"},
wantCtx: Context{
Type: OptionArgument,
Option: &Option{Spec: fSpec, Long: true, Argument: "foo"}},
},
{
name: "OptionArgument of long option with LongOnly, same argument",
args: []string{"-file=foo"},
cfg: LongOnly,
wantCtx: Context{
Type: OptionArgument,
Option: &Option{Spec: fSpec, Long: true, Argument: "foo"}},
},
{
name: "Argument",
args: []string{"foo"},
wantCtx: Context{Type: Argument, Text: "foo"},
},
{
name: "Argument after --",
args: []string{"--", "foo"},
cfg: StopAfterDoubleDash,
wantCtx: Context{Type: Argument, Text: "foo"},
},
{
name: "Argument after first non-option argument",
args: []string{"bar", "foo"},
cfg: StopBeforeFirstNonOption,
wantArgs: []string{"bar"},
wantCtx: Context{Type: Argument, Text: "foo"},
},
}
func TestComplete(t *testing.T) {
for _, tc := range completeTests {
t.Run(tc.name, func(t *testing.T) {
opts, args, ctx := Complete(tc.args, specs, tc.cfg)
check := func(name string, got, want any) {
if !reflect.DeepEqual(got, want) {
t.Errorf("Parse(%#v) (config = %v)\ngot %s = %v, want %v",
tc.args, tc.cfg, name, got, want)
}
}
check("opts", opts, tc.wantOpts)
check("args", args, tc.wantArgs)
check("ctx", ctx, tc.wantCtx)
})
}
}
|
