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package kingpin
import (
"io/ioutil"
"os"
"testing"
"github.com/stretchr/testify/assert"
)
func TestParserExpandFromFile(t *testing.T) {
f, err := ioutil.TempFile("", "")
assert.NoError(t, err)
defer os.Remove(f.Name())
f.WriteString("hello\nworld\n")
f.Close()
app := New("test", "")
arg0 := app.Arg("arg0", "").String()
arg1 := app.Arg("arg1", "").String()
_, err = app.Parse([]string{"@" + f.Name()})
assert.NoError(t, err)
assert.Equal(t, "hello", *arg0)
assert.Equal(t, "world", *arg1)
}
func TestParserExpandFromFileLeadingArg(t *testing.T) {
f, err := ioutil.TempFile("", "")
assert.NoError(t, err)
defer os.Remove(f.Name())
f.WriteString("hello\nworld\n")
f.Close()
app := New("test", "")
arg0 := app.Arg("arg0", "").String()
arg1 := app.Arg("arg1", "").String()
arg2 := app.Arg("arg2", "").String()
_, err = app.Parse([]string{"prefix", "@" + f.Name()})
assert.NoError(t, err)
assert.Equal(t, "prefix", *arg0)
assert.Equal(t, "hello", *arg1)
assert.Equal(t, "world", *arg2)
}
func TestParserExpandFromFileTrailingArg(t *testing.T) {
f, err := ioutil.TempFile("", "")
assert.NoError(t, err)
defer os.Remove(f.Name())
f.WriteString("hello\nworld\n")
f.Close()
app := New("test", "")
arg0 := app.Arg("arg0", "").String()
arg1 := app.Arg("arg1", "").String()
arg2 := app.Arg("arg2", "").String()
_, err = app.Parse([]string{"@" + f.Name(), "suffix"})
assert.NoError(t, err)
assert.Equal(t, "hello", *arg0)
assert.Equal(t, "world", *arg1)
assert.Equal(t, "suffix", *arg2)
}
func TestParserExpandFromFileMultipleSurroundingArgs(t *testing.T) {
f, err := ioutil.TempFile("", "")
assert.NoError(t, err)
defer os.Remove(f.Name())
f.WriteString("hello\nworld\n")
f.Close()
app := New("test", "")
arg0 := app.Arg("arg0", "").String()
arg1 := app.Arg("arg1", "").String()
arg2 := app.Arg("arg2", "").String()
arg3 := app.Arg("arg3", "").String()
_, err = app.Parse([]string{"prefix", "@" + f.Name(), "suffix"})
assert.NoError(t, err)
assert.Equal(t, "prefix", *arg0)
assert.Equal(t, "hello", *arg1)
assert.Equal(t, "world", *arg2)
assert.Equal(t, "suffix", *arg3)
}
func TestParserExpandFromFileMultipleFlags(t *testing.T) {
f, err := ioutil.TempFile("", "")
assert.NoError(t, err)
defer os.Remove(f.Name())
f.WriteString("--flag1=f1\n--flag2=f2\n")
f.Close()
app := New("test", "")
flag0 := app.Flag("flag0", "").String()
flag1 := app.Flag("flag1", "").String()
flag2 := app.Flag("flag2", "").String()
flag3 := app.Flag("flag3", "").String()
_, err = app.Parse([]string{"--flag0=f0", "@" + f.Name(), "--flag3=f3"})
assert.NoError(t, err)
assert.Equal(t, "f0", *flag0)
assert.Equal(t, "f1", *flag1)
assert.Equal(t, "f2", *flag2)
assert.Equal(t, "f3", *flag3)
}
func TestParseContextPush(t *testing.T) {
app := New("test", "")
app.Command("foo", "").Command("bar", "")
c := tokenize([]string{"foo", "bar"}, false)
a := c.Next()
assert.Equal(t, TokenArg, a.Type)
b := c.Next()
assert.Equal(t, TokenArg, b.Type)
c.Push(b)
c.Push(a)
a = c.Next()
assert.Equal(t, "foo", a.Value)
b = c.Next()
assert.Equal(t, "bar", b.Value)
}