github.com/kaydxh/golang@v0.0.131/pkg/profile/profile_test.go (about)

     1  /*
     2   *Copyright (c) 2022, kaydxh
     3   *
     4   *Permission is hereby granted, free of charge, to any person obtaining a copy
     5   *of this software and associated documentation files (the "Software"), to deal
     6   *in the Software without restriction, including without limitation the rights
     7   *to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     8   *copies of the Software, and to permit persons to whom the Software is
     9   *furnished to do so, subject to the following conditions:
    10   *
    11   *The above copyright notice and this permission notice shall be included in all
    12   *copies or substantial portions of the Software.
    13   *
    14   *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    15   *IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    16   *FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    17   *AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    18   *LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    19   *OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
    20   *SOFTWARE.
    21   */
    22  package profile_test
    23  
    24  import (
    25  	"fmt"
    26  	"os"
    27  	"testing"
    28  
    29  	profile_ "github.com/kaydxh/golang/pkg/profile"
    30  )
    31  
    32  func doCpu() {
    33  	var (
    34  		a uint64 = 2
    35  		i uint64
    36  	)
    37  	for i = 0; i < 10000000000; i++ {
    38  		a += 2
    39  	}
    40  	fmt.Printf("a: %d\n", a)
    41  }
    42  
    43  func TestStartWithEnv(t *testing.T) {
    44  	os.Setenv("PROFILING", "cpu")
    45  	defer profile_.StartWithEnv().Stop()
    46  
    47  	doCpu()
    48  }