duration_test.go

Documentation: go.uber.org/atomic

     1  // Copyright (c) 2020 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 atomic
    22  
    23  import (
    24  	"encoding/json"
    25  	"testing"
    26  	"time"
    27  
    28  	"github.com/stretchr/testify/assert"
    29  	"github.com/stretchr/testify/require"
    30  )
    31  
    32  func TestDuration(t *testing.T) {
    33  	atom := NewDuration(5 * time.Minute)
    34  
    35  	require.Equal(t, 5*time.Minute, atom.Load(), "Load didn't work.")
    36  	require.Equal(t, 6*time.Minute, atom.Add(time.Minute), "Add didn't work.")
    37  	require.Equal(t, 4*time.Minute, atom.Sub(2*time.Minute), "Sub didn't work.")
    38  
    39  	require.True(t, atom.CAS(4*time.Minute, time.Minute), "CAS didn't report a swap.")
    40  	require.Equal(t, time.Minute, atom.Load(), "CAS didn't set the correct value.")
    41  
    42  	require.Equal(t, time.Minute, atom.Swap(2*time.Minute), "Swap didn't return the old value.")
    43  	require.Equal(t, 2*time.Minute, atom.Load(), "Swap didn't set the correct value.")
    44  
    45  	atom.Store(10 * time.Minute)
    46  	require.Equal(t, 10*time.Minute, atom.Load(), "Store didn't set the correct value.")
    47  
    48  	t.Run("JSON/Marshal", func(t *testing.T) {
    49  		atom.Store(time.Second)
    50  		bytes, err := json.Marshal(atom)
    51  		require.NoError(t, err, "json.Marshal errored unexpectedly.")
    52  		require.Equal(t, []byte("1000000000"), bytes, "json.Marshal encoded the wrong bytes.")
    53  	})
    54  
    55  	t.Run("JSON/Unmarshal", func(t *testing.T) {
    56  		err := json.Unmarshal([]byte("1000000000"), &atom)
    57  		require.NoError(t, err, "json.Unmarshal errored unexpectedly.")
    58  		require.Equal(t, time.Second, atom.Load(), "json.Unmarshal didn't set the correct value.")
    59  	})
    60  
    61  	t.Run("JSON/Unmarshal/Error", func(t *testing.T) {
    62  		err := json.Unmarshal([]byte("\"1000000000\""), &atom)
    63  		require.Error(t, err, "json.Unmarshal didn't error as expected.")
    64  		assertErrorJSONUnmarshalType(t, err,
    65  			"json.Unmarshal failed with unexpected error %v, want UnmarshalTypeError.", err)
    66  	})
    67  
    68  	t.Run("String", func(t *testing.T) {
    69  		assert.Equal(t, "42s", NewDuration(42*time.Second).String(),
    70  			"String() returned an unexpected value.")
    71  	})
    72  }
    73
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