github.com/cloudwego/hertz@v0.9.3/pkg/common/stackless/func_test.go (about)

     1  /*
     2   * Copyright 2022 CloudWeGo Authors
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   *     http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   *
    16   * The MIT License (MIT)
    17   *
    18   * Copyright (c) 2015-present Aliaksandr Valialkin, VertaMedia, Kirill Danshin, Erik Dubbelboer, FastHTTP Authors
    19   *
    20   * Permission is hereby granted, free of charge, to any person obtaining a copy
    21   * of this software and associated documentation files (the "Software"), to deal
    22   * in the Software without restriction, including without limitation the rights
    23   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    24   * copies of the Software, and to permit persons to whom the Software is
    25   * furnished to do so, subject to the following conditions:
    26   *
    27   * The above copyright notice and this permission notice shall be included in
    28   * all copies or substantial portions of the Software.
    29   *
    30   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    31   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    32   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    33   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    34   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    35   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    36   * THE SOFTWARE.
    37   *
    38   * This file may have been modified by CloudWeGo authors. All CloudWeGo
    39   * Modifications are Copyright 2022 CloudWeGo Authors.
    40   */
    41  
    42  package stackless
    43  
    44  import (
    45  	"fmt"
    46  	"sync/atomic"
    47  	"testing"
    48  	"time"
    49  )
    50  
    51  func TestNewFuncSimple(t *testing.T) {
    52  	var n uint64
    53  	f := NewFunc(func(ctx interface{}) {
    54  		atomic.AddUint64(&n, uint64(ctx.(int)))
    55  	})
    56  
    57  	iterations := 4 * 1024
    58  	for i := 0; i < iterations; i++ {
    59  		if !f(2) {
    60  			t.Fatalf("f mustn't return false")
    61  		}
    62  	}
    63  	if n != uint64(2*iterations) {
    64  		t.Fatalf("Unexpected n: %d. Expecting %d", n, 2*iterations)
    65  	}
    66  }
    67  
    68  func TestNewFuncMulti(t *testing.T) {
    69  	var n1, n2 uint64
    70  	f1 := NewFunc(func(ctx interface{}) {
    71  		atomic.AddUint64(&n1, uint64(ctx.(int)))
    72  	})
    73  	f2 := NewFunc(func(ctx interface{}) {
    74  		atomic.AddUint64(&n2, uint64(ctx.(int)))
    75  	})
    76  
    77  	iterations := 4 * 1024
    78  
    79  	f1Done := make(chan error, 1)
    80  	go func() {
    81  		var err error
    82  		for i := 0; i < iterations; i++ {
    83  			if !f1(3) {
    84  				err = fmt.Errorf("f1 mustn't return false")
    85  				break
    86  			}
    87  		}
    88  		f1Done <- err
    89  	}()
    90  
    91  	f2Done := make(chan error, 1)
    92  	go func() {
    93  		var err error
    94  		for i := 0; i < iterations; i++ {
    95  			if !f2(5) {
    96  				err = fmt.Errorf("f2 mustn't return false")
    97  				break
    98  			}
    99  		}
   100  		f2Done <- err
   101  	}()
   102  
   103  	select {
   104  	case err := <-f1Done:
   105  		if err != nil {
   106  			t.Fatalf("unexpected error: %s", err)
   107  		}
   108  	case <-time.After(time.Second):
   109  		t.Fatalf("timeout")
   110  	}
   111  
   112  	select {
   113  	case err := <-f2Done:
   114  		if err != nil {
   115  			t.Fatalf("unexpected error: %s", err)
   116  		}
   117  	case <-time.After(time.Second):
   118  		t.Fatalf("timeout")
   119  	}
   120  
   121  	if n1 != uint64(3*iterations) {
   122  		t.Fatalf("unexpected n1: %d. Expecting %d", n1, 3*iterations)
   123  	}
   124  	if n2 != uint64(5*iterations) {
   125  		t.Fatalf("unexpected n2: %d. Expecting %d", n2, 5*iterations)
   126  	}
   127  }