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3092f82dcc
This almost 100% backwards compatible. The only difference being that in the rc options/get output CutoffMode, LogLevel, TerminalColorMode will be output as strings instead of integers. This is a lot more convenient for the user. They still accept integer inputs though so the fallout from this should be minimal.
144 lines
2.6 KiB
Go
144 lines
2.6 KiB
Go
package fs
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import (
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"encoding/json"
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"fmt"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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type choices struct{}
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func (choices) Choices() []string {
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return []string{
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choiceA: "A",
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choiceB: "B",
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choiceC: "C",
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}
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}
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type choice = Enum[choices]
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const (
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choiceA choice = iota
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choiceB
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choiceC
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)
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// Check it satisfies the interfaces
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var (
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_ flagger = (*choice)(nil)
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_ flaggerNP = choice(0)
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)
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func TestEnumString(t *testing.T) {
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for _, test := range []struct {
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in choice
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want string
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}{
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{choiceA, "A"},
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{choiceB, "B"},
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{choiceC, "C"},
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{choice(100), "Unknown(100)"},
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} {
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got := test.in.String()
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assert.Equal(t, test.want, got)
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}
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}
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func TestEnumType(t *testing.T) {
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assert.Equal(t, "A|B|C", choiceA.Type())
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}
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// Enum with Type() on the choices
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type choicestype struct{}
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func (choicestype) Choices() []string {
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return []string{}
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}
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func (choicestype) Type() string {
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return "potato"
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}
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type choicetype = Enum[choicestype]
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func TestEnumTypeWithFunction(t *testing.T) {
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assert.Equal(t, "potato", choicetype(0).Type())
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}
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func TestEnumHelp(t *testing.T) {
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assert.Equal(t, "A, B, C", choice(0).Help())
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}
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func TestEnumSet(t *testing.T) {
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for _, test := range []struct {
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in string
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want choice
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err bool
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}{
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{"A", choiceA, false},
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{"B", choiceB, false},
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{"C", choiceC, false},
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{"D", choice(100), true},
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} {
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var got choice
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err := got.Set(test.in)
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if test.err {
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require.Error(t, err)
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} else {
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require.NoError(t, err)
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assert.Equal(t, test.want, got)
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}
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}
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}
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func TestEnumScan(t *testing.T) {
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var v choice
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n, err := fmt.Sscan(" A ", &v)
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require.NoError(t, err)
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assert.Equal(t, 1, n)
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assert.Equal(t, choiceA, v)
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}
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func TestEnumUnmarshalJSON(t *testing.T) {
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for _, test := range []struct {
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in string
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want choice
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err string
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}{
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{`"A"`, choiceA, ""},
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{`"B"`, choiceB, ""},
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{`0`, choiceA, ""},
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{`1`, choiceB, ""},
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{`"D"`, choice(0), `invalid choice "D" from: A, B, C`},
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{`100`, choice(0), `100 is out of range: must be 0..3`},
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} {
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var got choice
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err := json.Unmarshal([]byte(test.in), &got)
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if test.err != "" {
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require.Error(t, err, test.in)
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assert.ErrorContains(t, err, test.err)
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} else {
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require.NoError(t, err, test.in)
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}
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assert.Equal(t, test.want, got, test.in)
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}
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}
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func TestEnumMarshalJSON(t *testing.T) {
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for _, test := range []struct {
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in choice
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want string
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}{
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{choiceA, `"A"`},
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{choiceB, `"B"`},
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} {
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got, err := json.Marshal(&test.in)
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require.NoError(t, err)
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assert.Equal(t, test.want, string(got), fmt.Sprintf("%#v", test.in))
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}
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}
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