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package fs
import (
"encoding/json"
"fmt"
"strconv"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
type bits = Bits[bitsChoices]
const (
bitA bits = 1 << iota
bitB
bitC
)
type bitsChoices struct{}
func (bitsChoices) Choices() []BitsChoicesInfo {
return []BitsChoicesInfo{
{uint64(0), "OFF"},
{uint64(bitA), "A"},
{uint64(bitB), "B"},
{uint64(bitC), "C"},
}
}
// Check it satisfies the interfaces
var (
_ flagger = (*bits)(nil)
_ flaggerNP = bits(0)
)
func TestBitsString(t *testing.T) {
assert.Equal(t, "OFF", bits(0).String())
assert.Equal(t, "A", (bitA).String())
assert.Equal(t, "A,B", (bitA | bitB).String())
assert.Equal(t, "A,B,C", (bitA | bitB | bitC).String())
assert.Equal(t, "A,Unknown-0x8000", (bitA | bits(0x8000)).String())
}
func TestBitsHelp(t *testing.T) {
assert.Equal(t, "OFF, A, B, C", bits(0).Help())
}
func TestBitsSet(t *testing.T) {
for _, test := range []struct {
in string
want bits
wantErr string
}{
{"", bits(0), ""},
{"B", bitB, ""},
{"B,A", bitB | bitA, ""},
{"a,b,C", bitA | bitB | bitC, ""},
{"A,B,unknown,E", 0, `invalid choice "unknown" from: OFF, A, B, C`},
} {
f := bits(0xffffffffffffffff)
initial := f
err := f.Set(test.in)
if err != nil {
if test.wantErr == "" {
t.Errorf("Got an error when not expecting one on %q: %v", test.in, err)
} else {
assert.Contains(t, err.Error(), test.wantErr)
}
assert.Equal(t, initial, f, test.want)
} else {
if test.wantErr != "" {
t.Errorf("Got no error when expecting one on %q", test.in)
} else {
assert.Equal(t, test.want, f)
}
}
}
}
func TestBitsIsSet(t *testing.T) {
b := bitA | bitB
assert.True(t, b.IsSet(bitA))
assert.True(t, b.IsSet(bitB))
assert.True(t, b.IsSet(bitA|bitB))
assert.False(t, b.IsSet(bitC))
assert.False(t, b.IsSet(bitA|bitC))
}
func TestBitsType(t *testing.T) {
f := bits(0)
assert.Equal(t, "Bits", f.Type())
}
func TestBitsScan(t *testing.T) {
var v bits
n, err := fmt.Sscan(" C,B ", &v)
require.NoError(t, err)
assert.Equal(t, 1, n)
assert.Equal(t, bitC|bitB, v)
}
func TestBitsUnmarshallJSON(t *testing.T) {
for _, test := range []struct {
in string
want bits
wantErr string
}{
{`""`, bits(0), ""},
{`"B"`, bitB, ""},
{`"B,A"`, bitB | bitA, ""},
{`"A,B,C"`, bitA | bitB | bitC, ""},
{`"A,B,unknown,E"`, 0, `invalid choice "unknown" from: OFF, A, B, C`},
{`0`, bits(0), ""},
{strconv.Itoa(int(bitB)), bitB, ""},
{strconv.Itoa(int(bitB | bitA)), bitB | bitA, ""},
} {
f := bits(0xffffffffffffffff)
initial := f
err := json.Unmarshal([]byte(test.in), &f)
if err != nil {
if test.wantErr == "" {
t.Errorf("Got an error when not expecting one on %q: %v", test.in, err)
} else {
assert.Contains(t, err.Error(), test.wantErr)
}
assert.Equal(t, initial, f, test.want)
} else {
if test.wantErr != "" {
t.Errorf("Got no error when expecting one on %q", test.in)
} else {
assert.Equal(t, test.want, f)
}
}
}
}
func TestBitsMarshalJSON(t *testing.T) {
for _, test := range []struct {
in bits
want string
}{
{bitA | bitC, `"A,C"`},
{0, `"OFF"`},
} {
got, err := json.Marshal(&test.in)
require.NoError(t, err)
assert.Equal(t, test.want, string(got), fmt.Sprintf("%#v", test.in))
}
}
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