// Copyright 2022 The Gitea Authors. All rights reserved.// SPDX-License-Identifier: MIT package container import (	"slices"	"testing" 	"github.com/stretchr/testify/assert") func TestSet(t *testing.T) {	s := make(Set[string]) 	assert.True(t, s.Add("key1"))	assert.False(t, s.Add("key1"))	assert.True(t, s.Add("key2")) 	assert.True(t, s.Contains("key1"))	assert.True(t, s.Contains("key2"))	assert.False(t, s.Contains("key3")) 	assert.True(t, s.Remove("key2"))	assert.False(t, s.Contains("key2")) 	assert.False(t, s.Remove("key3")) 	s.AddMultiple("key4", "key5")	assert.True(t, s.Contains("key4"))	assert.True(t, s.Contains("key5")) 	values := s.Values()	called := 0	for value := range s.Seq() {		called++		assert.True(t, slices.Contains(values, value))	}	assert.Equal(t, len(values), called) 	s = SetOf("key6", "key7")	assert.False(t, s.Contains("key1"))	assert.True(t, s.Contains("key6"))	assert.True(t, s.Contains("key7")) 	assert.True(t, s.IsSubset([]string{"key6", "key7"}))	assert.False(t, s.IsSubset([]string{"key1"})) 	assert.True(t, s.IsSubset([]string{})) 	t.Run("Clone", func(t *testing.T) {		clonedSet := s.Clone()		clonedSet.Remove("key6")		assert.False(t, clonedSet.Contains("key6"))		assert.True(t, s.Contains("key6"))	})}