/
gotopt_test.go
498 lines (437 loc) · 15.9 KB
/
gotopt_test.go
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package gotopt
import (
"bytes"
"fmt"
"os"
"testing"
"github.com/stretchr/testify/assert"
)
func TestGotOptParserParse(t *testing.T) {
p := NewParser()
p.Opt('n', "name", NoArgument, "", "")
p.Opt('t', "time", RequiredArgument, "", "")
c, _ := p.Parse([]string{"ProgramName", "-nt37", "effie"})
for ps := range c {
switch tv := ps.Value().(type) {
case Option:
fmt.Printf("-%c detected", tv.Opt())
if tv.Opt() == 't' {
fmt.Printf(", arg=%s", tv.Value())
}
fmt.Println()
case []string:
fmt.Printf("name is %s\n", tv[0])
}
}
}
func TestGotOptParserParseAll(t *testing.T) {
p := NewParser()
p.Opt('n', "name", NoArgument, "", "")
p.Opt('t', "time", RequiredArgument, "", "")
ps, _ := p.ParseAll([]string{"ProgramName", "-nt37", "effie"})
ps = ps.First()
for {
switch tv := ps.Value().(type) {
case Option:
fmt.Printf("-%c detected", tv.Opt())
if tv.Opt() == 't' {
fmt.Printf(", arg=%s", tv.Value())
}
fmt.Println()
case []string:
fmt.Printf("name is %s\n", tv[0])
}
var ok bool
if ps, ok = ps.Next(); !ok {
break
}
}
}
func TestPrintUsage(t *testing.T) {
p := NewParser()
p.Opt('n', "name", NoArgument, "", "A flag indicating the name is a trailing arg")
p.Opt('t', "time", RequiredArgument, "epoch", "The epoch")
p.Opt('x', "xist", OptionalArgument, "val", "A value with the answer to our existence")
p.Opt(0, "play", NoArgument, "", "Whether or not it's time to play")
p.Opt(0, "fast", OptionalArgument, "mph", "How fast to go")
p.Opt(0, "slow", RequiredArgument, "mph", "How slow to go")
p.Opt('h', "", RequiredArgument, "00-23", "The current hour")
p.Opt('o', "", OptionalArgument, "asc|desc", "The current order")
p.Opt('z', "", NoArgument, "", "Drop the zero, and get with the hero")
exp := ` -n, --name A flag indicating the name is a trailing arg
-t, --time epoch The epoch
-x, --xist [val] A value with the answer to our existence
--play Whether or not it's time to play
--fast [mph] How fast to go
--slow mph How slow to go
-h 00-23 The current hour
-o [asc|desc] The current order
-z Drop the zero, and get with the hero
`
assert.NoError(t, p.PrintUsage(os.Stdout))
assert.Equal(t, exp, p.Usage())
exp = `-n, --name A flag indicating the name is a trailing arg
-t, --time epoch The epoch
-x, --xist [val] A value with the answer to our existence
--play Whether or not it's time to play
--fast [mph] How fast to go
--slow mph How slow to go
-h 00-23 The current hour
-o [asc|desc] The current order
-z Drop the zero, and get with the hero
`
b := &bytes.Buffer{}
assert.NoError(t, p.PrintAndIndentUsage(b, 0))
assert.Equal(t, exp, b.String())
}
func TestParserOk(t *testing.T) {
assertParseOk(t, testParse(t, "tipok01", "--time=37", "-n", "effie"))
assertParseOk(t, testParse(t, "tipok02", "-n", "--time=37", "effie"))
assertParseOk(t, testParse(t, "tipok03", "--time=37", "effie", "-n"))
assertParseOk(t, testParse(t, "tipok04", "effie", "-n", "--time=37"))
assertParseOk(t, testParse(t, "tipok05", "--time", "37", "-n", "effie"))
assertParseOk(t, testParse(t, "tipok06", "-n", "--time", "37", "effie"))
assertParseOk(t, testParse(t, "tipok07", "--time", "37", "effie", "-n"))
assertParseOk(t, testParse(t, "tipok08", "effie", "-n", "--time", "37"))
assertParseOk(t, testParse(t, "tipok09", "--ti", "37", "-n", "effie"))
assertParseOk(t, testParse(t, "tipok10", "-n", "--tim", "37", "effie"))
assertParseOk(t, testParse(t, "tipok11", "--t", "37", "effie", "-n"))
assertParseOk(t, testParse(t, "tipok12", "--time", "37", "-n", "effie"))
assertParseOk(t, testParse(t, "tipok13", "--na", "--time", "37", "effie"))
assertParseOk(t, testParse(t, "tipok14", "--time", "37", "effie", "--nam"))
assertParseOk(t, testParse(t, "tipok15", "effie", "--name", "--time", "37"))
}
func TestParserOkW(t *testing.T) {
assertParseOk(t, testParse(t, "tipokw01", "-W", "time=37", "-n", "effie"))
assertParseOk(t, testParse(t, "tipokw02", "-n", "-W", "time=37", "effie"))
assertParseOk(t, testParse(t, "tipokw03", "-W", "time=37", "effie", "-n"))
assertParseOk(t, testParse(t, "tipokw04", "effie", "-n", "-W", "time=37"))
assertParseOk(t, testParse(t, "tipokw05", "-W", "time", "37", "-n", "effie"))
assertParseOk(t, testParse(t, "tipokw06", "-n", "-W", "time", "37", "effie"))
assertParseOk(t, testParse(t, "tipokw07", "-W", "time", "37", "effie", "-n"))
assertParseOk(t, testParse(t, "tipokw08", "effie", "-n", "-W", "time", "37"))
assertParseOk(t, testParse(t, "tipokw09", "-W", "ti", "37", "-n", "effie"))
assertParseOk(t, testParse(t, "tipokw10", "-n", "-W", "tim", "37", "effie"))
assertParseOk(t, testParse(t, "tipokw11", "-W", "t", "37", "effie", "-n"))
assertParseOk(t, testParse(t, "tipokw12", "-W", "time", "37", "-W", "n", "effie"))
assertParseOk(t, testParse(t, "tipokw13", "-W", "na", "-W", "time", "37", "effie"))
assertParseOk(t, testParse(t, "tipokw14", "-W", "time", "37", "effie", "-W", "nam"))
assertParseOk(t, testParse(t, "tipokw15", "effie", "-W", "name", "-W", "time", "37"))
}
func TestParserMissingName(t *testing.T) {
assertParseNoName(t, testParse(t, "tipnn01", "--time=37", "-n"))
assertParseNoName(t, testParse(t, "tipnn02", "-n", "--time=37"))
assertParseNoName(t, testParse(t, "tipnn03", "--time=37", "-n"))
assertParseNoName(t, testParse(t, "tipnn04", "-n", "--time=37"))
assertParseNoName(t, testParse(t, "tipnn05", "--time", "37", "-n"))
assertParseNoName(t, testParse(t, "tipnn06", "-n", "--time", "37"))
assertParseNoName(t, testParse(t, "tipnn07", "--time", "37", "-n"))
assertParseNoName(t, testParse(t, "tipnn08", "-n", "--time", "37"))
assertParseNoName(t, testParse(t, "tipnn09", "--ti", "37", "-n"))
assertParseNoName(t, testParse(t, "tipnn10", "-n", "--tim", "37"))
assertParseNoName(t, testParse(t, "tipnn11", "--t", "37", "-n"))
}
func TestParserMissingNameW(t *testing.T) {
assertParseNoName(t, testParse(t, "tipnnw01", "-W", "time=37", "-n"))
assertParseNoName(t, testParse(t, "tipnnw02", "-n", "-W", "time=37"))
assertParseNoName(t, testParse(t, "tipnnw03", "-W", "time=37", "-W", "n"))
assertParseNoName(t, testParse(t, "tipnnw04", "-W", "na", "-W", "time=37"))
assertParseNoName(t, testParse(t, "tipnnw05", "-W", "time", "37", "-n"))
assertParseNoName(t, testParse(t, "tipnnw06", "-n", "-W", "time", "37"))
assertParseNoName(t, testParse(t, "tipnnw07", "-W", "time", "37", "-W", "n"))
assertParseNoName(t, testParse(t, "tipnnw08", "-W", "na", "-W", "time", "37"))
assertParseNoName(t, testParse(t, "tipnnw09", "-W", "ti", "37", "-n"))
assertParseNoName(t, testParse(t, "tipnnw10", "-W", "nam", "-W", "tim", "37"))
assertParseNoName(t, testParse(t, "tipnnw11", "-W", "t", "37", "-W", "name"))
}
func TestParserNoTime(t *testing.T) {
a1 := func(t *testing.T, r *parseTestResult) {
assert.False(t, r.tfnd)
assert.IsType(t, &ErrRequiredArg{}, r.err)
err := r.err.(*ErrRequiredArg)
assert.EqualValues(t, 't', err.Opt)
assert.NotEqual(t, "37", r.nsecs)
assert.False(t, r.nfnd)
assert.Equal(t, "", r.name)
}
a1(t, testParse(t, "tipnt01", "--t"))
a1(t, testParse(t, "tipnt02", "--ti"))
a1(t, testParse(t, "tipnt03", "--tim"))
a1(t, testParse(t, "tipnt04", "--time"))
a2 := func(t *testing.T, r *parseTestResult) {
assert.False(t, r.tfnd)
assert.IsType(t, &ErrRequiredArg{}, r.err)
err := r.err.(*ErrRequiredArg)
assert.EqualValues(t, 't', err.Opt)
assert.NotEqual(t, "37", r.nsecs)
assert.True(t, r.nfnd)
assert.Equal(t, "", r.name)
}
a2(t, testParse(t, "tipnt05", "-n", "--t"))
a2(t, testParse(t, "tipnt06", "-n", "--ti"))
a2(t, testParse(t, "tipnt07", "-n", "--tim"))
a2(t, testParse(t, "tipnt08", "-n", "--time"))
}
func TestParserUnknownOpt(t *testing.T) {
a1 := func(t *testing.T, r *parseTestResult, u string) {
assert.True(t, r.tfnd)
assert.Equal(t, "37", r.nsecs)
assert.IsType(t, &ErrUnknownOpt{}, r.err)
err := r.err.(*ErrUnknownOpt)
if err.LongName == "" {
assert.Equal(t, u, fmt.Sprintf("%c", err.Opt))
} else {
assert.Equal(t, u, err.LongName)
}
assert.False(t, r.nfnd)
assert.Equal(t, "", r.name)
}
a1(t, testParse(t, "tipunkn01a", "--t=37", "-f", "-n", "effie"), "f")
a1(t, testParse(t, "tipunkn02a", "--ti=37", "-fu", "-n", "effie"), "f")
a1(t, testParse(t, "tipunkn03a", "--tim=37", "-fub", "-n", "effie"), "f")
a1(t, testParse(t, "tipunkn04a", "--time=37", "-fubar", "-n", "effie"), "f")
a1(t, testParse(t, "tipunkn01b", "--t=37", "-W", "f", "-n", "effie"), "f")
a1(t, testParse(t, "tipunkn02b", "--ti=37", "-W", "fu", "-n", "effie"), "fu")
a1(t, testParse(t, "tipunkn03b", "--tim=37", "-W", "fub", "-n", "effie"), "fub")
a1(t, testParse(t, "tipunkn04b", "--time=37", "-W", "fubar", "-n", "effie"), "fubar")
a2 := func(t *testing.T, r *parseTestResult, u string) {
assert.True(t, r.tfnd)
assert.Equal(t, "37", r.nsecs)
assert.True(t, r.nfnd)
assert.Equal(t, "", r.name)
assert.IsType(t, &ErrUnknownOpt{}, r.err)
err := r.err.(*ErrUnknownOpt)
if err.LongName == "" {
assert.Equal(t, u, fmt.Sprintf("%c", err.Opt))
} else {
assert.Equal(t, u, err.LongName)
}
}
a2(t, testParse(t, "tipunkn05", "--t=37", "-n", "effie", "-f"), "f")
a2(t, testParse(t, "tipunkn06", "--ti=37", "-n", "effie", "-W", "f"), "f")
a2(t, testParse(t, "tipunkn07", "--tim=37", "-n", "effie", "-fu"), "f")
a2(t, testParse(t, "tipunkn08", "--time=37", "-n", "effie", "-W", "fubar"), "fubar")
a3 := func(t *testing.T, r *parseTestResult) {
assert.True(t, r.tfnd)
assert.Equal(t, "37", r.nsecs)
assert.IsType(t, &ErrUnknownOpt{}, r.err)
err := r.err.(*ErrUnknownOpt)
assert.Equal(t, 0, err.Opt)
assert.Equal(t, "hello", err.LongName)
assert.False(t, r.nfnd)
assert.Equal(t, "", r.name)
}
a3(t, testParse(t, "tipunkn09", "--t=37", "--hello", "-f", "-n", "effie"))
a3(t, testParse(t, "tipunkn10", "--ti=37", "--hello", "-f", "-n", "effie"))
a3(t, testParse(t, "tipunkn11", "--tim=37", "--hello", "-f", "-n", "effie"))
a3(t, testParse(t, "tipunkn12", "--time=37", "--hello", "-f", "-n", "effie"))
}
func TestParseOptional(t *testing.T) {
a1 := func(t *testing.T, r *parseTestResult) {
assert.True(t, r.tfnd)
assert.Equal(t, "37", r.nsecs)
assert.True(t, r.nfnd)
assert.Equal(t, "effie", r.name)
assert.True(t, r.xfnd)
assert.Equal(t, "play", r.xist)
}
a1(t, testParse(t, "tipopt01", "--time=37", "-n", "effie", "-xplay"))
a1(t, testParse(t, "tipopt02", "-n", "--time=37", "effie", "--xist=play"))
a1(t, testParse(t, "tipopt03", "--time=37", "effie", "-nxplay"))
// NOTE: This will fail due to getopt not parsing optional parameters for
// longOpts unless using an explicit equals sign. This StackOverflow
// post explains it - http://stackoverflow.com/questions/1052746
//
// a1(t, testParse(t, "tipopt04", "effie", "-n", "--time=37", "--xist", "play"))
}
func TestParseLongOnly(t *testing.T) {
a1 := func(t *testing.T, r *parseTestResult) {
assert.True(t, r.tfnd)
assert.Equal(t, "37", r.nsecs)
assert.True(t, r.nfnd)
assert.Equal(t, "effie", r.name)
assert.True(t, r.xfnd)
assert.Equal(t, "play", r.xist)
assert.True(t, r.pfnd)
}
a1(t, testParse(t, "tplo01", "--time=37", "-n", "effie", "-xplay", "--pulp"))
a1(t, testParse(t, "tplo02", "-n", "--time=37", "effie", "--xist=play", "--p"))
a1(t, testParse(t, "tplo03", "--time=37", "effie", "-nxplay", "--pu"))
}
func TestParserStateCount(t *testing.T) {
a1 := func(t *testing.T, ps ParserState, nct int) {
fps := ps.LookupOpt('n')
assert.Equal(t, nct, len(fps))
for _, i := range fps {
t.Logf("fpts=%+v", i)
}
}
a1(t, testParseAll(t, "tpct01", "--time=37", "-nn", "effie"), 2)
a1(t, testParseAll(t, "tpct02", "-n", "-nnn", "--time=37", "effie"), 4)
a1(t, testParseAll(t, "tpct03", "--name", "--time=37", "effie", "-nnn", "--name"), 5)
a1(t, testParseAll(t, "tpct04", "effie", "-nnn", "-nnnt", "37"), 6)
}
type testParserCountAndIndexData struct {
Argv []string
Count int
Indices []int
}
func TestParserCountAndIndex(t *testing.T) {
payloads := []*testParserCountAndIndexData{
&testParserCountAndIndexData{
Argv: []string{"--time=37", "-nn", "effie"},
Count: 2,
Indices: []int{1, 2},
},
&testParserCountAndIndexData{
Argv: []string{"-n", "-nnn", "--time=37", "effie"},
Count: 4,
Indices: []int{0, 1, 2, 3},
},
&testParserCountAndIndexData{
Argv: []string{"--name", "--time=37", "effie", "-nnn", "--name"},
Count: 5,
Indices: []int{0, 2, 3, 4, 5},
},
&testParserCountAndIndexData{
Argv: []string{"effie", "-nnn", "-nnnt", "37"},
Count: 6,
Indices: []int{0, 1, 2, 3, 4, 5},
},
}
testOpt := (*Option)(nil)
pp := 0
for x, td := range payloads {
assert.Equal(t, td.Count, len(td.Indices), "td.Count == len(td.Indices)")
argv := []string{fmt.Sprintf("tpctidx0%d", x)}
argv = append(argv, td.Argv...)
ps := testParseAll(t, argv...)
fps := ps.LookupOpt('n')
assert.Equal(t, td.Count, len(fps), "Count")
for y, fpsi := range fps {
assert.Implements(t, testOpt, fpsi.Value())
o := fpsi.Value().(Option)
assert.Equal(t, td.Indices[y], fpsi.Index(), "ParserState.Index")
assert.Equal(t, y, o.Index(), "Option.Index")
}
pp++
}
assert.Equal(t, 4, pp)
}
func TestParserDiffStates(t *testing.T) {
ps := testParseAll(
t, "tpdifs01", "--time=37", "-nn", "-xplay", "-t", "47", "effie")
testOpt := (*Option)(nil)
testStrArr := []string{}
psArgs := ps.Last()
assert.NotNil(t, psArgs)
assert.NotNil(t, psArgs.Value())
assert.IsType(t, testStrArr, psArgs.Value())
assert.Len(t, psArgs.Value(), 1)
assert.Equal(t, "effie", psArgs.Value().([]string)[0])
psT0 := ps.First()
assert.NotNil(t, psT0)
assert.NotNil(t, psT0.Value())
assert.Implements(t, testOpt, psT0.Value())
o := psT0.Value().(Option)
assert.EqualValues(t, 't', o.Opt())
assert.Equal(t, "37", o.Value())
psN0, _ := psT0.Next()
assert.NotNil(t, psN0)
assert.NotNil(t, psN0.Value())
assert.Implements(t, testOpt, psN0.Value())
o = psN0.Value().(Option)
assert.EqualValues(t, 'n', o.Opt())
psN1, _ := psN0.Next()
assert.NotNil(t, psN1)
assert.NotNil(t, psN1.Value())
assert.Implements(t, testOpt, psN1.Value())
o = psN1.Value().(Option)
assert.EqualValues(t, 'n', o.Opt())
psX0, _ := psN1.Next()
assert.NotNil(t, psX0)
assert.NotNil(t, psX0.Value())
assert.Implements(t, testOpt, psX0.Value())
o = psX0.Value().(Option)
assert.EqualValues(t, 'x', o.Opt())
assert.Equal(t, "play", o.Value())
psT1, _ := psX0.Next()
assert.NotNil(t, psT1)
assert.NotNil(t, psT1.Value())
assert.Implements(t, testOpt, psT1.Value())
o = psT1.Value().(Option)
assert.EqualValues(t, 't', o.Opt())
assert.Equal(t, "47", o.Value())
}
func newTestParser() Parser {
p := NewParser()
p.Opt('n', "name", NoArgument, "", "")
p.Opt('t', "time", RequiredArgument, "", "")
p.Opt('x', "xist", OptionalArgument, "", "")
p.Opt(0, "pulp", NoArgument, "", "")
return p
}
func testParseAll(t *testing.T, argv ...string) ParserState {
t.Logf("argv=%v\n", argv)
ps, _ := newTestParser().ParseAll(argv)
return ps
}
func testParse(t *testing.T, argv ...string) *parseTestResult {
t.Logf("argv=%v\n", argv)
r := &parseTestResult{}
c, _ := newTestParser().Parse(argv)
for i := range c {
t.Logf("i=%[1]T %[1]v\n", i)
switch ti := i.Value().(type) {
case Option:
switch ti.Opt() {
case 0:
if ti.LongName() == "pulp" {
r.pfnd = true
}
case 't':
r.tfnd = true
r.nsecs = ti.Value()
case 'n':
r.nfnd = true
r.nct++
case 'x':
r.xfnd = true
r.xist = ti.Value()
}
case error:
r.err = ti
return r
case []string:
r.name = ti[0]
default:
t.Fatalf("unknown chan val: %v", ti)
}
}
return r
}
func assertParseOk(t *testing.T, r *parseTestResult) {
assert.True(t, r.tfnd)
assert.True(t, r.nfnd)
assert.Equal(t, "37", r.nsecs)
assert.Equal(t, "effie", r.name)
}
func assertParseNoName(t *testing.T, r *parseTestResult) {
assert.True(t, r.tfnd)
assert.True(t, r.nfnd)
assert.Equal(t, "37", r.nsecs)
assert.Equal(t, "", r.name)
}
type parseTestResult struct {
argv []string
argc int
nfnd bool
nsecs string
tfnd bool
name string
xfnd bool
xist string
pfnd bool
err error
nct int
}