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package arg
import (
"reflect"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestSetSliceWithoutClearing(t *testing.T) {
xs := []int{10}
entries := []string{"1", "2", "3"}
err := setSlice(reflect.ValueOf(&xs).Elem(), entries, false)
require.NoError(t, err)
assert.Equal(t, []int{10, 1, 2, 3}, xs)
}
func TestSetSliceWithClear(t *testing.T) {
xs := []int{100}
entries := []string{"1", "2", "3"}
err := setSlice(reflect.ValueOf(&xs).Elem(), entries, true)
require.NoError(t, err)
assert.Equal(t, []int{1, 2, 3}, xs)
}
func TestSetSlicePtr(t *testing.T) {
var xs []*int
entries := []string{"1", "2", "3"}
err := setSlice(reflect.ValueOf(&xs).Elem(), entries, true)
require.NoError(t, err)
require.Len(t, xs, 3)
assert.Equal(t, 1, *xs[0])
assert.Equal(t, 2, *xs[1])
assert.Equal(t, 3, *xs[2])
}
func TestSetSliceTextUnmarshaller(t *testing.T) {
// textUnmarshaler is a struct that captures the length of the string passed to it
var xs []*textUnmarshaler
entries := []string{"a", "aa", "aaa"}
err := setSlice(reflect.ValueOf(&xs).Elem(), entries, true)
require.NoError(t, err)
require.Len(t, xs, 3)
assert.Equal(t, 1, xs[0].val)
assert.Equal(t, 2, xs[1].val)
assert.Equal(t, 3, xs[2].val)
}
func TestSetMapWithoutClearing(t *testing.T) {
m := map[string]int{"foo": 10}
entries := []string{"a=1", "b=2"}
err := setMap(reflect.ValueOf(&m).Elem(), entries, false)
require.NoError(t, err)
require.Len(t, m, 3)
assert.Equal(t, 1, m["a"])
assert.Equal(t, 2, m["b"])
assert.Equal(t, 10, m["foo"])
}
func TestSetMapWithClear(t *testing.T) {
m := map[string]int{"foo": 10}
entries := []string{"a=1", "b=2"}
err := setMap(reflect.ValueOf(&m).Elem(), entries, true)
require.NoError(t, err)
require.Len(t, m, 2)
assert.Equal(t, 1, m["a"])
assert.Equal(t, 2, m["b"])
}
func TestSetMapTextUnmarshaller(t *testing.T) {
// textUnmarshaler is a struct that captures the length of the string passed to it
var m map[textUnmarshaler]*textUnmarshaler
entries := []string{"a=123", "aa=12", "aaa=1"}
err := setMap(reflect.ValueOf(&m).Elem(), entries, true)
require.NoError(t, err)
require.Len(t, m, 3)
assert.Equal(t, &textUnmarshaler{3}, m[textUnmarshaler{1}])
assert.Equal(t, &textUnmarshaler{2}, m[textUnmarshaler{2}])
assert.Equal(t, &textUnmarshaler{1}, m[textUnmarshaler{3}])
}
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