forked from alecthomas/kingpin
-
Notifications
You must be signed in to change notification settings - Fork 0
/
app_test.go
197 lines (168 loc) · 4.88 KB
/
app_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
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
package kingpin
import (
"io/ioutil"
"github.com/stretchr/testify/assert"
"testing"
"time"
)
func TestCommander(t *testing.T) {
c := New("test", "test")
ping := c.Command("ping", "Ping an IP address.")
pingTTL := ping.Flag("ttl", "TTL for ICMP packets").Short('t').Default("5s").Duration()
selected, err := c.Parse([]string{"ping"})
assert.NoError(t, err)
assert.Equal(t, "ping", selected)
assert.Equal(t, 5*time.Second, *pingTTL)
selected, err = c.Parse([]string{"ping", "--ttl=10s"})
assert.NoError(t, err)
assert.Equal(t, "ping", selected)
assert.Equal(t, 10*time.Second, *pingTTL)
}
func TestRequiredFlags(t *testing.T) {
c := New("test", "test")
c.Flag("a", "a").String()
c.Flag("b", "b").Required().String()
_, err := c.Parse([]string{"--a=foo"})
assert.Error(t, err)
_, err = c.Parse([]string{"--b=foo"})
assert.NoError(t, err)
}
func TestInvalidDefaultFlagValueErrors(t *testing.T) {
c := New("test", "test")
c.Flag("foo", "foo").Default("a").Int()
_, err := c.Parse([]string{})
assert.Error(t, err)
}
func TestInvalidDefaultArgValueErrors(t *testing.T) {
c := New("test", "test")
cmd := c.Command("cmd", "cmd")
cmd.Arg("arg", "arg").Default("one").Int()
_, err := c.Parse([]string{"cmd"})
assert.Error(t, err)
}
func TestArgsRequiredAfterNonRequiredErrors(t *testing.T) {
c := New("test", "test")
cmd := c.Command("cmd", "")
cmd.Arg("a", "a").String()
cmd.Arg("b", "b").Required().String()
_, err := c.Parse([]string{"cmd"})
assert.Error(t, err)
}
func TestArgsMultipleRequiredThenNonRequired(t *testing.T) {
c := New("test", "test").Terminate(nil).Writer(ioutil.Discard)
cmd := c.Command("cmd", "")
cmd.Arg("a", "a").Required().String()
cmd.Arg("b", "b").Required().String()
cmd.Arg("c", "c").String()
cmd.Arg("d", "d").String()
_, err := c.Parse([]string{"cmd", "a", "b"})
assert.NoError(t, err)
_, err = c.Parse([]string{})
assert.Error(t, err)
}
func TestDispatchCallbackIsCalled(t *testing.T) {
dispatched := false
c := New("test", "")
c.Command("cmd", "").Action(func(*ParseContext) error {
dispatched = true
return nil
})
_, err := c.Parse([]string{"cmd"})
assert.NoError(t, err)
assert.True(t, dispatched)
}
func TestTopLevelArgWorks(t *testing.T) {
c := New("test", "test")
s := c.Arg("arg", "help").String()
_, err := c.Parse([]string{"foo"})
assert.NoError(t, err)
assert.Equal(t, "foo", *s)
}
func TestTopLevelArgCantBeUsedWithCommands(t *testing.T) {
c := New("test", "test")
c.Arg("arg", "help").String()
c.Command("cmd", "help")
_, err := c.Parse([]string{})
assert.Error(t, err)
}
func TestTooManyArgs(t *testing.T) {
a := New("test", "test")
a.Arg("a", "").String()
_, err := a.Parse([]string{"a", "b"})
assert.Error(t, err)
}
func TestTooManyArgsAfterCommand(t *testing.T) {
a := New("test", "test")
a.Command("a", "")
assert.NoError(t, a.init())
_, err := a.Parse([]string{"a", "b"})
assert.Error(t, err)
}
func TestArgsLooksLikeFlagsWithConsumeRemainder(t *testing.T) {
a := New("test", "")
a.Arg("opts", "").Required().Strings()
_, err := a.Parse([]string{"hello", "-world"})
assert.Error(t, err)
}
func TestCommandParseDoesNotResetFlagsToDefault(t *testing.T) {
app := New("test", "")
flag := app.Flag("flag", "").Default("default").String()
app.Command("cmd", "")
_, err := app.Parse([]string{"--flag=123", "cmd"})
assert.NoError(t, err)
assert.Equal(t, "123", *flag)
}
func TestCommandParseDoesNotFailRequired(t *testing.T) {
app := New("test", "")
flag := app.Flag("flag", "").Required().String()
app.Command("cmd", "")
_, err := app.Parse([]string{"cmd", "--flag=123"})
assert.NoError(t, err)
assert.Equal(t, "123", *flag)
}
func TestSelectedCommand(t *testing.T) {
app := New("test", "help")
c0 := app.Command("c0", "")
c0.Command("c1", "")
s, err := app.Parse([]string{"c0", "c1"})
assert.NoError(t, err)
assert.Equal(t, "c0 c1", s)
}
func TestSubCommandRequired(t *testing.T) {
app := New("test", "help")
c0 := app.Command("c0", "")
c0.Command("c1", "")
_, err := app.Parse([]string{"c0"})
assert.Error(t, err)
}
func TestInterspersedFalse(t *testing.T) {
app := New("test", "help").Interspersed(false)
a1 := app.Arg("a1", "").String()
a2 := app.Arg("a2", "").String()
f1 := app.Flag("flag", "").String()
_, err := app.Parse([]string{"a1", "--flag=flag"})
assert.NoError(t, err)
assert.Equal(t, "a1", *a1)
assert.Equal(t, "--flag=flag", *a2)
assert.Equal(t, "", *f1)
}
func TestInterspersedTrue(t *testing.T) {
// test once with the default value and once with explicit true
for i := 0; i < 2; i++ {
app := New("test", "help")
if i != 0 {
t.Log("Setting explicit")
app.Interspersed(true)
} else {
t.Log("Using default")
}
a1 := app.Arg("a1", "").String()
a2 := app.Arg("a2", "").String()
f1 := app.Flag("flag", "").String()
_, err := app.Parse([]string{"a1", "--flag=flag"})
assert.NoError(t, err)
assert.Equal(t, "a1", *a1)
assert.Equal(t, "", *a2)
assert.Equal(t, "flag", *f1)
}
}