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// Copyright (c) 2022 Tulir Asokan
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package variationselector_test
import (
"fmt"
"strconv"
"testing"
"github.com/stretchr/testify/assert"
"maunium.net/go/mautrix/util/variationselector"
)
func TestAdd(t *testing.T) {
assert.Equal(t, "\U0001f44d\U0001F3FD", variationselector.Add("\U0001f44d\U0001F3FD"))
assert.Equal(t, "\U0001f44d\ufe0f", variationselector.Add("\U0001f44d"))
assert.Equal(t, "\U0001f44d\ufe0f", variationselector.Add("\U0001f44d\ufe0f"))
assert.Equal(t, "4\ufe0f\u20e3", variationselector.Add("4\u20e3"))
assert.Equal(t, "4\ufe0f\u20e3", variationselector.Add("4\ufe0f\u20e3"))
assert.Equal(t, "\U0001f914", variationselector.Add("\U0001f914"))
}
func TestRemove(t *testing.T) {
assert.Equal(t, "\U0001f44d", variationselector.Remove("\U0001f44d"))
assert.Equal(t, "\U0001f44d", variationselector.Remove("\U0001f44d\ufe0f"))
assert.Equal(t, "4\u20e3", variationselector.Remove("4\u20e3"))
assert.Equal(t, "4\u20e3", variationselector.Remove("4\ufe0f\u20e3"))
assert.Equal(t, "\U0001f914", variationselector.Remove("\U0001f914"))
}
func ExampleAdd() {
fmt.Println(strconv.QuoteToASCII(variationselector.Add("\U0001f44d"))) // thumbs up (needs selector)
fmt.Println(strconv.QuoteToASCII(variationselector.Add("\U0001f44d\ufe0f"))) // thumbs up with variation selector (stays as-is)
fmt.Println(strconv.QuoteToASCII(variationselector.Add("\U0001f44d\U0001F3FD"))) // thumbs up with skin tone (shouldn't get selector)
fmt.Println(strconv.QuoteToASCII(variationselector.Add("\U0001f914"))) // thinking face (shouldn't get selector)
// Output:
// "\U0001f44d\ufe0f"
// "\U0001f44d\ufe0f"
// "\U0001f44d\U0001f3fd"
// "\U0001f914"
}
func ExampleRemove() {
fmt.Println(strconv.QuoteToASCII(variationselector.Remove("\U0001f44d")))
fmt.Println(strconv.QuoteToASCII(variationselector.Remove("\U0001f44d\ufe0f")))
// Output:
// "\U0001f44d"
// "\U0001f44d"
}
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