github.com/uber-go/tally/v4@v4.1.17/instrument/call_test.go (about)

     1  // Copyright (c) 2021 Uber Technologies, Inc.
     2  //
     3  // Permission is hereby granted, free of charge, to any person obtaining a copy
     4  // of this software and associated documentation files (the "Software"), to deal
     5  // in the Software without restriction, including without limitation the rights
     6  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     7  // copies of the Software, and to permit persons to whom the Software is
     8  // furnished to do so, subject to the following conditions:
     9  //
    10  // The above copyright notice and this permission notice shall be included in
    11  // all copies or substantial portions of the Software.
    12  //
    13  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19  // THE SOFTWARE.
    20  
    21  package instrument
    22  
    23  import (
    24  	"errors"
    25  	"testing"
    26  	"time"
    27  
    28  	"github.com/uber-go/tally/v4"
    29  
    30  	"github.com/stretchr/testify/assert"
    31  	"github.com/stretchr/testify/require"
    32  )
    33  
    34  func TestCallSuccess(t *testing.T) {
    35  	s := tally.NewTestScope("", nil)
    36  
    37  	sleepFor := time.Microsecond
    38  	err := NewCall(s, "test_call").Exec(func() error {
    39  		time.Sleep(time.Microsecond)
    40  		return nil
    41  	})
    42  	assert.Nil(t, err)
    43  
    44  	snapshot := s.Snapshot()
    45  	counters := snapshot.Counters()
    46  	timers := snapshot.Timers()
    47  
    48  	require.NotNil(t, counters["test_call+result_type=success"])
    49  	require.NotNil(t, timers["test_call.latency+"])
    50  
    51  	assert.Equal(t, int64(1), counters["test_call+result_type=success"].Value())
    52  	require.Equal(t, 1, len(timers["test_call.latency+"].Values()))
    53  	assert.True(t, timers["test_call.latency+"].Values()[0] >= sleepFor)
    54  }
    55  
    56  func TestCallFail(t *testing.T) {
    57  	s := tally.NewTestScope("", nil)
    58  
    59  	sleepFor := time.Microsecond
    60  	expected := errors.New("an error")
    61  	err := NewCall(s, "test_call").Exec(func() error {
    62  		time.Sleep(sleepFor)
    63  		return expected
    64  	})
    65  	assert.NotNil(t, err)
    66  	assert.Equal(t, expected, err)
    67  
    68  	snapshot := s.Snapshot()
    69  	counters := snapshot.Counters()
    70  	timers := snapshot.Timers()
    71  
    72  	require.NotNil(t, counters["test_call+result_type=error"])
    73  	require.NotNil(t, timers["test_call.latency+"])
    74  
    75  	assert.Equal(t, int64(1), counters["test_call+result_type=error"].Value())
    76  	require.Equal(t, 1, len(timers["test_call.latency+"].Values()))
    77  	assert.True(t, timers["test_call.latency+"].Values()[0] >= sleepFor)
    78  }