github.com/bytedance/gopkg@v0.0.0-20240514070511-01b2cbcf35e1/collection/skipmap/skipmap_str_test.go (about)

     1  // Copyright 2021 ByteDance Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package skipmap
    16  
    17  import (
    18  	"reflect"
    19  	"strconv"
    20  	"sync"
    21  	"sync/atomic"
    22  	"testing"
    23  )
    24  
    25  func TestStringMap(t *testing.T) {
    26  	m := NewString()
    27  
    28  	// Correctness.
    29  	m.Store("123", "123")
    30  	v, ok := m.Load("123")
    31  	if !ok || v != "123" || m.Len() != 1 {
    32  		t.Fatal("invalid")
    33  	}
    34  
    35  	m.Store("123", "456")
    36  	v, ok = m.Load("123")
    37  	if !ok || v != "456" || m.Len() != 1 {
    38  		t.Fatal("invalid")
    39  	}
    40  
    41  	m.Store("123", 456)
    42  	v, ok = m.Load("123")
    43  	if !ok || v != 456 || m.Len() != 1 {
    44  		t.Fatal("invalid")
    45  	}
    46  
    47  	m.Delete("123")
    48  	_, ok = m.Load("123")
    49  	if ok || m.Len() != 0 {
    50  		t.Fatal("invalid")
    51  	}
    52  
    53  	_, ok = m.LoadOrStore("123", 456)
    54  	if ok || m.Len() != 1 {
    55  		t.Fatal("invalid")
    56  	}
    57  
    58  	v, ok = m.Load("123")
    59  	if !ok || v != 456 || m.Len() != 1 {
    60  		t.Fatal("invalid")
    61  	}
    62  
    63  	v, ok = m.LoadAndDelete("123")
    64  	if !ok || v != 456 || m.Len() != 0 {
    65  		t.Fatal("invalid")
    66  	}
    67  
    68  	_, ok = m.LoadOrStore("123", 456)
    69  	if ok || m.Len() != 1 {
    70  		t.Fatal("invalid")
    71  	}
    72  
    73  	m.LoadOrStore("456", 123)
    74  	if ok || m.Len() != 2 {
    75  		t.Fatal("invalid")
    76  	}
    77  
    78  	m.Range(func(key string, value interface{}) bool {
    79  		if key == "123" {
    80  			m.Store("123", 123)
    81  		} else if key == "456" {
    82  			m.LoadAndDelete("456")
    83  		}
    84  		return true
    85  	})
    86  
    87  	v, ok = m.Load("123")
    88  	if !ok || v != 123 || m.Len() != 1 {
    89  		t.Fatal("invalid")
    90  	}
    91  
    92  	// Concurrent.
    93  	var wg sync.WaitGroup
    94  	for i := 0; i < 1000; i++ {
    95  		i := i
    96  		wg.Add(1)
    97  		go func() {
    98  			n := strconv.Itoa(i)
    99  			m.Store(n, int(i+1000))
   100  			wg.Done()
   101  		}()
   102  	}
   103  	wg.Wait()
   104  	var count2 int64
   105  	m.Range(func(key string, value interface{}) bool {
   106  		atomic.AddInt64(&count2, 1)
   107  		return true
   108  	})
   109  	m.Delete("600")
   110  	var count int64
   111  	m.Range(func(key string, value interface{}) bool {
   112  		atomic.AddInt64(&count, 1)
   113  		return true
   114  	})
   115  
   116  	val, ok := m.Load("500")
   117  	if !ok || reflect.TypeOf(val).Kind().String() != "int" || val.(int) != 1500 {
   118  		t.Fatal("fail")
   119  	}
   120  
   121  	_, ok = m.Load("600")
   122  	if ok {
   123  		t.Fatal("fail")
   124  	}
   125  
   126  	if m.Len() != 999 || int(count) != m.Len() {
   127  		t.Fatal("fail", m.Len(), count, count2)
   128  	}
   129  }