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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pflag
import (
"fmt"
"strconv"
"strings"
"testing"
)
func setUpF32SFlagSet(f32sp *[]float32) *FlagSet {
f := NewFlagSet("test", ContinueOnError)
f.Float32SliceVar(f32sp, "f32s", []float32{}, "Command separated list!")
return f
}
func setUpF32SFlagSetWithDefault(f32sp *[]float32) *FlagSet {
f := NewFlagSet("test", ContinueOnError)
f.Float32SliceVar(f32sp, "f32s", []float32{0.0, 1.0}, "Command separated list!")
return f
}
func TestEmptyF32S(t *testing.T) {
var f32s []float32
f := setUpF32SFlagSet(&f32s)
err := f.Parse([]string{})
if err != nil {
t.Fatal("expected no error; got", err)
}
getF32S, err := f.GetFloat32Slice("f32s")
if err != nil {
t.Fatal("got an error from GetFloat32Slice():", err)
}
if len(getF32S) != 0 {
t.Fatalf("got f32s %v with len=%d but expected length=0", getF32S, len(getF32S))
}
}
func TestF32S(t *testing.T) {
var f32s []float32
f := setUpF32SFlagSet(&f32s)
vals := []string{"1.0", "2.0", "4.0", "3.0"}
arg := fmt.Sprintf("--f32s=%s", strings.Join(vals, ","))
err := f.Parse([]string{arg})
if err != nil {
t.Fatal("expected no error; got", err)
}
for i, v := range f32s {
d64, err := strconv.ParseFloat(vals[i], 32)
if err != nil {
t.Fatalf("got error: %v", err)
}
d := float32(d64)
if d != v {
t.Fatalf("expected f32s[%d] to be %s but got: %f", i, vals[i], v)
}
}
getF32S, err := f.GetFloat32Slice("f32s")
if err != nil {
t.Fatalf("got error: %v", err)
}
for i, v := range getF32S {
d64, err := strconv.ParseFloat(vals[i], 32)
if err != nil {
t.Fatalf("got error: %v", err)
}
d := float32(d64)
if d != v {
t.Fatalf("expected f32s[%d] to be %s but got: %f from GetFloat32Slice", i, vals[i], v)
}
}
}
func TestF32SDefault(t *testing.T) {
var f32s []float32
f := setUpF32SFlagSetWithDefault(&f32s)
vals := []string{"0.0", "1.0"}
err := f.Parse([]string{})
if err != nil {
t.Fatal("expected no error; got", err)
}
for i, v := range f32s {
d64, err := strconv.ParseFloat(vals[i], 32)
if err != nil {
t.Fatalf("got error: %v", err)
}
d := float32(d64)
if d != v {
t.Fatalf("expected f32s[%d] to be %f but got: %f", i, d, v)
}
}
getF32S, err := f.GetFloat32Slice("f32s")
if err != nil {
t.Fatal("got an error from GetFloat32Slice():", err)
}
for i, v := range getF32S {
d64, err := strconv.ParseFloat(vals[i], 32)
if err != nil {
t.Fatal("got an error from GetFloat32Slice():", err)
}
d := float32(d64)
if d != v {
t.Fatalf("expected f32s[%d] to be %f from GetFloat32Slice but got: %f", i, d, v)
}
}
}
func TestF32SWithDefault(t *testing.T) {
var f32s []float32
f := setUpF32SFlagSetWithDefault(&f32s)
vals := []string{"1.0", "2.0"}
arg := fmt.Sprintf("--f32s=%s", strings.Join(vals, ","))
err := f.Parse([]string{arg})
if err != nil {
t.Fatal("expected no error; got", err)
}
for i, v := range f32s {
d64, err := strconv.ParseFloat(vals[i], 32)
if err != nil {
t.Fatalf("got error: %v", err)
}
d := float32(d64)
if d != v {
t.Fatalf("expected f32s[%d] to be %f but got: %f", i, d, v)
}
}
getF32S, err := f.GetFloat32Slice("f32s")
if err != nil {
t.Fatal("got an error from GetFloat32Slice():", err)
}
for i, v := range getF32S {
d64, err := strconv.ParseFloat(vals[i], 32)
if err != nil {
t.Fatalf("got error: %v", err)
}
d := float32(d64)
if d != v {
t.Fatalf("expected f32s[%d] to be %f from GetFloat32Slice but got: %f", i, d, v)
}
}
}
func TestF32SAsSliceValue(t *testing.T) {
var f32s []float32
f := setUpF32SFlagSet(&f32s)
in := []string{"1.0", "2.0"}
argfmt := "--f32s=%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)
}
f.VisitAll(func(f *Flag) {
if val, ok := f.Value.(SliceValue); ok {
_ = val.Replace([]string{"3.1"})
}
})
if len(f32s) != 1 || f32s[0] != 3.1 {
t.Fatalf("Expected ss to be overwritten with '3.1', but got: %v", f32s)
}
}
func TestF32SCalledTwice(t *testing.T) {
var f32s []float32
f := setUpF32SFlagSet(&f32s)
in := []string{"1.0,2.0", "3.0"}
expected := []float32{1.0, 2.0, 3.0}
argfmt := "--f32s=%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 f32s {
if expected[i] != v {
t.Fatalf("expected f32s[%d] to be %f but got: %f", i, expected[i], v)
}
}
}
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