github.com/go-spring/spring-base@v1.1.3/log/internal/caller_test.go (about)

     1  /*
     2   * Copyright 2012-2019 the original author or 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   *      https://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  
    17  package internal_test
    18  
    19  import (
    20  	"fmt"
    21  	"testing"
    22  
    23  	"github.com/go-spring/spring-base/assert"
    24  	"github.com/go-spring/spring-base/log/internal"
    25  )
    26  
    27  func TestCaller(t *testing.T) {
    28  	for i := 0; i < 2; i++ {
    29  		file, line, loaded := internal.Caller(0, true)
    30  		if i == 0 {
    31  			assert.False(t, loaded)
    32  		} else {
    33  			assert.True(t, loaded)
    34  		}
    35  		_ = fmt.Sprintf("%s:%d\n", file, line)
    36  	}
    37  }
    38  
    39  func BenchmarkCaller(b *testing.B) {
    40  	// BenchmarkCaller/fast-8  2393902  463.3 ns/op
    41  	// BenchmarkCaller/slow-8  1470334  814.4 ns/op
    42  	b.Run("fast", func(b *testing.B) {
    43  		for i := 0; i < b.N; i++ {
    44  			file, line, _ := internal.Caller(0, true)
    45  			_ = fmt.Sprintf("%s:%d\n", file, line)
    46  		}
    47  	})
    48  	b.Run("slow", func(b *testing.B) {
    49  		for i := 0; i < b.N; i++ {
    50  			file, line, _ := internal.Caller(0, false)
    51  			_ = fmt.Sprintf("%s:%d\n", file, line)
    52  		}
    53  	})
    54  }