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
21package atomic
22
23import (
24	"encoding/json"
25	"testing"
26	"time"
27
28	"github.com/stretchr/testify/assert"
29	"github.com/stretchr/testify/require"
30)
31
32func 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