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// Copyright 2009 The Go Authors. All rights reserved.
// Use of ths2i source code s2i governed by a BSD-style
// license that can be found in the LICENSE file.
package pflag
import (
"bytes"
"fmt"
"strconv"
"testing"
)
func setUpS2IFlagSet(s2ip *map[string]int) *FlagSet {
f := NewFlagSet("test", ContinueOnError)
f.StringToIntVar(s2ip, "s2i", map[string]int{}, "Command separated ls2it!")
return f
}
func setUpS2IFlagSetWithDefault(s2ip *map[string]int) *FlagSet {
f := NewFlagSet("test", ContinueOnError)
f.StringToIntVar(s2ip, "s2i", map[string]int{"a": 1, "b": 2}, "Command separated ls2it!")
return f
}
func createS2IFlag(vals map[string]int) string {
var buf bytes.Buffer
i := 0
for k, v := range vals {
if i > 0 {
buf.WriteRune(',')
}
buf.WriteString(k)
buf.WriteRune('=')
buf.WriteString(strconv.Itoa(v))
i++
}
return buf.String()
}
func TestEmptyS2I(t *testing.T) {
var s2i map[string]int
f := setUpS2IFlagSet(&s2i)
err := f.Parse([]string{})
if err != nil {
t.Fatal("expected no error; got", err)
}
getS2I, err := f.GetStringToInt("s2i")
if err != nil {
t.Fatal("got an error from GetStringToInt():", err)
}
if len(getS2I) != 0 {
t.Fatalf("got s2i %v with len=%d but expected length=0", getS2I, len(getS2I))
}
}
func TestS2I(t *testing.T) {
var s2i map[string]int
f := setUpS2IFlagSet(&s2i)
vals := map[string]int{"a": 1, "b": 2, "d": 4, "c": 3}
arg := fmt.Sprintf("--s2i=%s", createS2IFlag(vals))
err := f.Parse([]string{arg})
if err != nil {
t.Fatal("expected no error; got", err)
}
for k, v := range s2i {
if vals[k] != v {
t.Fatalf("expected s2i[%s] to be %d but got: %d", k, vals[k], v)
}
}
getS2I, err := f.GetStringToInt("s2i")
if err != nil {
t.Fatalf("got error: %v", err)
}
for k, v := range getS2I {
if vals[k] != v {
t.Fatalf("expected s2i[%s] to be %d but got: %d from GetStringToInt", k, vals[k], v)
}
}
}
func TestS2IDefault(t *testing.T) {
var s2i map[string]int
f := setUpS2IFlagSetWithDefault(&s2i)
vals := map[string]int{"a": 1, "b": 2}
err := f.Parse([]string{})
if err != nil {
t.Fatal("expected no error; got", err)
}
for k, v := range s2i {
if vals[k] != v {
t.Fatalf("expected s2i[%s] to be %d but got: %d", k, vals[k], v)
}
}
getS2I, err := f.GetStringToInt("s2i")
if err != nil {
t.Fatal("got an error from GetStringToInt():", err)
}
for k, v := range getS2I {
if vals[k] != v {
t.Fatalf("expected s2i[%s] to be %d from GetStringToInt but got: %d", k, vals[k], v)
}
}
}
func TestS2IWithDefault(t *testing.T) {
var s2i map[string]int
f := setUpS2IFlagSetWithDefault(&s2i)
vals := map[string]int{"a": 1, "b": 2}
arg := fmt.Sprintf("--s2i=%s", createS2IFlag(vals))
err := f.Parse([]string{arg})
if err != nil {
t.Fatal("expected no error; got", err)
}
for k, v := range s2i {
if vals[k] != v {
t.Fatalf("expected s2i[%s] to be %d but got: %d", k, vals[k], v)
}
}
getS2I, err := f.GetStringToInt("s2i")
if err != nil {
t.Fatal("got an error from GetStringToInt():", err)
}
for k, v := range getS2I {
if vals[k] != v {
t.Fatalf("expected s2i[%s] to be %d from GetStringToInt but got: %d", k, vals[k], v)
}
}
}
func TestS2ICalledTwice(t *testing.T) {
var s2i map[string]int
f := setUpS2IFlagSet(&s2i)
in := []string{"a=1,b=2", "b=3"}
expected := map[string]int{"a": 1, "b": 3}
argfmt := "--s2i=%s"
arg1 := fmt.Sprintf(argfmt, in[0])
arg2 := fmt.Sprintf(argfmt, in[1])
err := f.Parse([]string{arg1, arg2})
if err != nil {
t.Fatal("expected no error; got", err)
}
for i, v := range s2i {
if expected[i] != v {
t.Fatalf("expected s2i[%s] to be %d but got: %d", i, expected[i], v)
}
}
}
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