1// Copyright (c) 2016-2020 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	"encoding/xml"
26	"testing"
27
28	"github.com/stretchr/testify/assert"
29	"github.com/stretchr/testify/require"
30)
31
32func TestStringNoInitialValue(t *testing.T) {
33	atom := &String{}
34	require.Equal(t, "", atom.Load(), "Initial value should be blank string")
35}
36
37func TestString(t *testing.T) {
38	atom := NewString("")
39	require.Equal(t, "", atom.Load(), "Expected Load to return initialized value")
40
41	atom.Store("abc")
42	require.Equal(t, "abc", atom.Load(), "Unexpected value after Store")
43
44	atom = NewString("bcd")
45	require.Equal(t, "bcd", atom.Load(), "Expected Load to return initialized value")
46
47	t.Run("JSON/Marshal", func(t *testing.T) {
48		bytes, err := json.Marshal(atom)
49		require.NoError(t, err, "json.Marshal errored unexpectedly.")
50		require.Equal(t, []byte(`"bcd"`), bytes, "json.Marshal encoded the wrong bytes.")
51	})
52
53	t.Run("JSON/Unmarshal", func(t *testing.T) {
54		err := json.Unmarshal([]byte(`"abc"`), &atom)
55		require.NoError(t, err, "json.Unmarshal errored unexpectedly.")
56		require.Equal(t, "abc", atom.Load(), "json.Unmarshal didn't set the correct value.")
57	})
58
59	t.Run("JSON/Unmarshal/Error", func(t *testing.T) {
60		err := json.Unmarshal([]byte("42"), &atom)
61		require.Error(t, err, "json.Unmarshal didn't error as expected.")
62		assertErrorJSONUnmarshalType(t, err,
63			"json.Unmarshal failed with unexpected error %v, want UnmarshalTypeError.", err)
64	})
65
66	atom = NewString("foo")
67
68	t.Run("XML/Marshal", func(t *testing.T) {
69		bytes, err := xml.Marshal(atom)
70		require.NoError(t, err, "xml.Marshal errored unexpectedly.")
71		require.Equal(t, []byte("<String>foo</String>"), bytes, "xml.Marshal encoded the wrong bytes.")
72	})
73
74	t.Run("XML/Unmarshal", func(t *testing.T) {
75		err := xml.Unmarshal([]byte("<String>bar</String>"), &atom)
76		require.NoError(t, err, "xml.Unmarshal errored unexpectedly.")
77		require.Equal(t, "bar", atom.Load(), "xml.Unmarshal didn't set the correct value.")
78	})
79
80	t.Run("String", func(t *testing.T) {
81		atom := NewString("foo")
82		assert.Equal(t, "foo", atom.String(),
83			"String() returned an unexpected value.")
84	})
85}
86