-
Notifications
You must be signed in to change notification settings - Fork 0
/
option_present_test.go
125 lines (99 loc) · 2.37 KB
/
option_present_test.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
package fluent
import (
"errors"
"testing"
"github.com/stretchr/testify/assert"
)
const value = 987654231
func Test_OptionPresent_Present(t *testing.T) {
o := Present(value)
assert.True(t, o.IsPresent())
}
func Test_OptionPresent_Get(t *testing.T) {
o := Present(value)
actual := o.Get()
assert.Equal(t, value, actual)
}
func Test_OptionPresent_Map(t *testing.T) {
o := Present(value)
called := new(bool)
*called = false
o = o.Map(func(a int) int {
*called = true
return a * 2
})
actual := o.Get()
assert.True(t, o.IsPresent(), "present")
assert.True(t, *called, "mapper called")
assert.Equal(t, value*2, actual)
}
func Test_OptionPresent_OrElse(t *testing.T) {
o := Present(value)
actual := o.OrElse(987654321)
assert.Equal(t, value, actual)
}
func Test_OptionPresent_OrElseGet(t *testing.T) {
o := Present(value)
called := new(bool)
*called = false
actual := o.OrElseGet(func() int {
*called = true
return 98754654
})
assert.Equal(t, value, actual)
assert.False(t, *called, "called")
}
func Test_OptionPresent_Or(t *testing.T) {
o := Present(value)
expected := 987654321
actual := o.Or(func() Option[int] {
return Present(expected)
})
assert.True(t, actual.IsPresent(), "present")
assert.Equal(t, value, actual.Get())
}
func Test_OptionPresent_OrError(t *testing.T) {
o := Present(value)
err := errors.New("err")
actual := o.OrError(err)
assert.True(t, actual.IsOk(), "IsOk")
assert.Equal(t, value, actual.Get(), "value")
}
func Test_OptionPresent_IfPresent(t *testing.T) {
o := Present(value)
called := new(bool)
*called = false
o.IfPresent(func(i int) {
*called = true
assert.Equal(t, value, i, "value")
})
assert.True(t, *called, "called")
}
func Test_OptionPresent_Filter_Match(t *testing.T) {
o := Present(value)
called := new(bool)
*called = false
o = o.Filter(func(i int) bool {
*called = true
assert.Equal(t, value, i, "value")
return true
})
assert.True(t, o.IsPresent(), "present")
assert.True(t, *called, "called")
}
func Test_OptionPresent_Filter_Mismatch(t *testing.T) {
o := Present(value)
called := new(bool)
*called = false
o = o.Filter(func(i int) bool {
*called = true
assert.Equal(t, value, i, "value")
return false
})
assert.False(t, o.IsPresent(), "present")
assert.True(t, *called, "called")
}
func Test_OptionPresent_String(t *testing.T) {
o := Present(value)
assert.NotEmpty(t, o.String())
}