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package main
import (
"testing"
"github.com/stretchr/testify/require"
)
func TestMultiStringFlagAppendsOnSet(t *testing.T) {
var concrete MultiStringFlag
iface := &concrete
require.NoError(t, iface.Set("foo"))
require.NoError(t, iface.Set("bar"))
require.EqualError(t, iface.Set(""), "value cannot be empty")
require.Equal(t, MultiStringFlag{"foo", "bar"}, concrete)
}
func TestMultiStringFlag_Split(t *testing.T) {
tests := []struct {
name string
s *MultiStringFlag
wantResult []string
}{
{
name: "empty_string",
s: &MultiStringFlag{}, // -flag ""
wantResult: []string{},
},
{
name: "one_value",
s: &MultiStringFlag{"value1"}, // -flag "value1"
wantResult: []string{"value1"},
},
{
name: "multiple_values",
s: &MultiStringFlag{"value1", "", "value3"}, // -flag "value1,,value3"
wantResult: []string{"value1", "", "value3"},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
gotResult := tt.s.Split()
require.ElementsMatch(t, tt.wantResult, gotResult)
})
}
}
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